Short answer: As of October 2026, the five highest-scoring roofing contractors in the Boulder, CO metro on The Roofing Brief Contractor Score are WestPro Home Exteriors (96.1), CCG Roofing and Project Management LLC (90.8), Roof Worx LLC (89.6), PRQ Exteriors (87.3), Reliable Roofing & Restoration Inc (79.3). Each holds a certification we verified on the manufacturer’s own register, every rating was corroborated elsewhere, and placement on this page is not for sale.
The Roofing Brief scored 13 certified roofing contractors serving the Boulder metro on a published, reproducible formula, then researched each of the top five individually to confirm its record. Boulder County is the only metro in this programme where the roofing rules change depending on which side of a city limit your house sits, and where a wildfire rewrote them. Unincorporated Boulder County requires Class 4 impact-resistant asphalt shingles, tested to UL 2218, on essentially any reroof. The City of Boulder does not, requiring Class A and banning wood instead. The county enforces the 2021 codes, the city the 2024 ones. And since the Marshall Fire destroyed 1,084 homes on 30 December 2021, the county’s wildfire amendments reach existing houses: replace a quarter of your roof surface or more and the whole covering has to come up to the new-construction standard. The city also publishes a licensed-contractor register, which let us check every firm below against it, and one of them is not on it.
What a Boulder roof is up against
Boulder County’s storm record is hail and almost nothing else. Across 2016 to 2025 the county logged 131 hail reports against just 9 severe thunderstorm and high wind reports and no tornadoes at all. Counting severe-weather reports of every kind together, June leads with 48, then July with 38 and May with 28. NOAA records no meaningful property damage total for the county across the decade, which reflects how patchily its damage fields are completed rather than an absence of losses; hail damage to roofs and vehicles is routinely logged as a report with no dollar figure attached. The absence of severe wind in that record is misleading in one specific way, and the spotlight below explains why: the winds that matter most on the Front Range are downslope windstorms, which are not convective and do not appear as severe thunderstorm reports.
Colorado issues no statewide contractor licence, so licensing here is municipal, and Boulder runs one of the better systems in the country. The City of Boulder licenses roofing as Class D-2 Roofing under its Building Contractor Licence scheme. An applicant files the city application, submits an A, B or C contractor certificate issued by the International Code Council, and carries general liability cover. Crucially the city publishes its licensed-contractor register as an open dataset: when we queried it on 1 October 2026 it held 262 active Class D-2 Roofing licences, each with a licence number, company name, address and expiry date. That makes Boulder one of the few places where a homeowner can check a roofer against a public register in under a minute, and we have done exactly that for every contractor on this page. Longmont also licenses roofing, as a Class D specialty licence covering roofing, waterproofing and gutters, and notably no examination is required for a Class D licence there.
The Class 4 question splits at the city limit and it is worth getting right, because it decides what product goes on your roof. Section R905.2.4.2 of the 2021 Amendments to the Boulder County Building Code states that asphalt shingles shall be Class 4 impact resistant, tested in accordance with UL 2218. It applies to reroofs, with the only exception being work under 200 square feet and under 25 percent of the roof, by written code-modification request. The City of Boulder has no such requirement: its Residential Building Permit Guide requires Class A roofing materials, prohibits wood roofing, and sets the roofing material wind requirement against design wind speeds of 150 and 165 mph. So an unincorporated Boulder County address gets a Class 4 mandate and a city of Boulder address does not, and both require a permit for a reroof, charged on valuation rather than at a flat rate.
Colorado also gives roofing customers statutory protections that most states do not, and in a hail county they are the ones to know. Under C.R.S. 6-22-104(1)(a), where the work is paid from insurance proceeds, you may rescind the contract within 72 hours of receiving written notice that the insurer has denied the claim in whole or in part. C.R.S. 6-22-103(1)(f)(I) requires every roofing contract to carry a rescission clause giving a full deposit refund within 72 hours of signing. C.R.S. 6-22-103(2) requires a statement in bold-faced type on the face of the contract that the contractor will hold your payment in trust until materials are delivered or a majority of the work is done. And C.R.S. 6-22-103(1)(g), with 6-22-105, requires the contract to state that the contractor cannot pay, waive or rebate any part of your insurance deductible. The median year built in Boulder County is 1986.
The 5 best roofers in Boulder, CO
Scored 2026-10-01. The metro mean rating used as the Bayesian prior for Boulder is 4.892, across a pool of 13 certified contractors.
| Rank | Company | TRB Score | Certification | Rating (reviews) | Adjusted | In business since | Based in |
|---|---|---|---|---|---|---|---|
| 1 | WestPro Home Exteriors | 96.1 | President’s Club | 5.0 (783) | 4.994 | 2017 | Longmont, CO |
| 2 | CCG Roofing and Project Management LLC | 90.8 | President’s Club | 5.0 (146) | 4.973 | 2009 | Northglenn, CO |
| 3 | Roof Worx LLC | 89.6 | President’s Club | 4.9 (407) | 4.899 | 2006 | Thornton, CO |
| 4 | PRQ Exteriors | 87.3 | President’s Club | 4.8 (950) | 4.805 | 2014 | Golden, CO |
| 5 | Reliable Roofing & Restoration Inc | 79.3 | Master Elite | 4.9 (354) | 4.899 | 1997 | Westminster, CO |
1. WestPro Home Exteriors — TRB Score 96.1
WestPro Home Exteriors is based in Longmont, CO, in business since 2017, led by Patrick A. Knackendoffel, Owner, BBB accredited, A+ rating, and holds President’s Club standing on the GAF certification registry.
Certifications held: President’s Club (GAF), City of Boulder Class D-2 Roofing licence, verified on the city register, James Hardie Elite Preferred, ProVia windows and doors installer, GuildQuality GuildMaster Award for Service Excellence. Certification by more than one manufacturer is uncommon and requires meeting each programme’s separate standards for insurance, training and track record.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 35 | 35 |
| Adjusted rating | 39.7 | 40 |
| Review corpus depth | 14.6 | 15 |
| Metro proximity | 6.8 | 10 |
| Total | 96.1 | 100 |
Independently corroborated:
- Class D-2 Roofing licence LIC-0011602-GENDROF, status Issued, expiring 14 August 2027, registered to Westpro Ltd at 164 Primrose Ct, Longmont.. City of Boulder licensed contractor register
- Westpro, Ltd. formed 16 May 2017, in Good Standing, at the Longmont address.. Colorado Secretary of State business entity register
- Accredited with an A+ rating at the Longmont address.. BBB business profile
What they actually do. Roof replacement and exterior work including James Hardie siding, windows and doors, across Boulder, Longmont, Louisville, Lafayette, Superior, Nederland, Jamestown, Lyons and Ward.
Why it ranks here. The top score in the county and the only contractor here actually based inside Boulder County, in Longmont. Its credentials line up on every register we could check: an active City of Boulder Class D-2 Roofing licence verified by number on the city’s own dataset, a Colorado Secretary of State record whose 2017 formation date matches its own claim, BBB accreditation at A+, and a GuildQuality service award, which is an audited customer-survey programme rather than a self-declared badge. A clean 5.0 across 783 reviews, the deepest flawless record in the metro.
Best fit for: The default first call anywhere in Boulder County, and roof-with-siding work under a James Hardie credential.
What we would want clarified. It is eight years old, formed in May 2017, so it has less history than several firms below it. It publishes no municipal licence number for Longmont, Louisville or Lafayette, though only Boulder runs a public register to check one against, and it holds no second roofing manufacturer credential outside GAF and its cladding certifications. We publish this because a ranking that only prints the flattering findings is an advertisement, not an assessment.
Verify the certification yourself on the GAF registry listing. The number carried on that listing is (303) 834-9236, which is the registry’s contact line and is often a directory tracking number rather than the contractor’s own: take the number from the company’s own website and compare the two.
2. CCG Roofing and Project Management LLC — TRB Score 90.8
CCG Roofing and Project Management LLC is based in Northglenn, CO, in business since 2009, led by Dane McGill, Owner, Not accredited, A+ rating, and holds President’s Club standing on the GAF certification registry.
Certifications held: President’s Club (GAF), City of Boulder Class D-2 Roofing licence, verified on the city register, Malarkey Certified Residential Contractor, Mule-Hide certified, Gaco certified. Certification by more than one manufacturer is uncommon and requires meeting each programme’s separate standards for insurance, training and track record.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 35 | 35 |
| Adjusted rating | 38.9 | 40 |
| Review corpus depth | 10.9 | 15 |
| Metro proximity | 5.9 | 10 |
| Total | 90.8 | 100 |
Independently corroborated:
- Class D-2 Roofing licence LIC-0009526-GENDROF, status Issued, expiring 6 June 2027, registered to Catastrophe Consultants Group.. City of Boulder licensed contractor register
- CCG trades under a registered Colorado trade name belonging to Catastrophe Consultants Group, LLC, whose entity record shows formation on 9 March 2009.. Colorado Secretary of State business entity register
- Rated A+ though not accredited, with the founding independently recorded as 9 March 2009.. BBB business profile
What they actually do. Roof replacement and project management across the Front Range, including Boulder, Longmont and Lafayette.
Why it ranks here. A clean 5.0 with President’s Club certification and an active City of Boulder Class D-2 licence verified by number. It carries the widest set of non-GAF manufacturer credentials on this page, including Malarkey, which is a Portland manufacturer whose products are widely specified in this climate, plus Mule-Hide and Gaco for low-slope and coating work. Sixteen years of trading, with the state record and the BBB agreeing on a 9 March 2009 formation.
Best fit for: Low-slope sections and coatings alongside a pitched roof, and homeowners wanting a non-GAF shingle option.
What we would want clarified. Its licence and its state record are both held under a different name, Catastrophe Consultants Group, so search the registers under that rather than CCG. Its own materials claim the business was established in 2008, which both the state entity record and the BBB contradict with 9 March 2009. Its BBB profile is not accredited, and at 146 reviews its customer record is the second thinnest here. It is based in Northglenn, in Adams County, outside Boulder County. We publish this because a ranking that only prints the flattering findings is an advertisement, not an assessment.
Verify the certification yourself on the GAF registry listing. The number carried on that listing is (800) 705-2150, which is the registry’s contact line and is often a directory tracking number rather than the contractor’s own: take the number from the company’s own website and compare the two.
3. Roof Worx LLC — TRB Score 89.6
Roof Worx LLC is based in Thornton, CO, in business since 2006, led by Ted Thomas and Bart Thomas, Founders, BBB accredited, A+ rating, and holds President’s Club standing on the GAF certification registry.
Certifications held: President’s Club (GAF), GAF Gold Elite Commercial Roofer, Versico commercial roofing applicator, Owens Corning certified, CertainTeed certified, VELUX certified installer, Sherwin-Williams roof coatings applicator. Certification by more than one manufacturer is uncommon and requires meeting each programme’s separate standards for insurance, training and track record.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 35 | 35 |
| Adjusted rating | 36.0 | 40 |
| Review corpus depth | 13.1 | 15 |
| Metro proximity | 5.5 | 10 |
| Total | 89.6 | 100 |
Independently corroborated:
- No City of Boulder contractor licence of any class is recorded for this company in the city’s Licensed Contractors open dataset, queried 1 October 2026, under any name variant.. City of Boulder licensed contractor register
- Accredited with an A+ rating, recording a business start date of 1 July 1999, which conflicts with the company’s own stated 2006 founding.. BBB business profile
What they actually do. Residential and commercial roof replacement, low-slope and single-ply systems, roof coatings and skylights.
Why it ranks here. The broadest manufacturer credentialing on this page by some distance: six certifications outside its residential GAF listing, including GAF’s Gold Elite commercial tier, Versico for single-ply, Owens Corning, CertainTeed, VELUX for skylights and Sherwin-Williams for coatings. President’s Club certification with 4.9 across 407 reviews, and Boulder is named on its service-areas page.
Best fit for: Low-slope, commercial or skylight work outside the City of Boulder limits, on the understanding set out above.
What we would want clarified. Two findings here need stating before you call. First, and most practically: we could not find a City of Boulder contractor licence of any class for this company in the city’s own Licensed Contractors dataset, queried on 1 October 2026, under any name variant, while every other firm on this page appears on it. Boulder requires a city licence to work inside the city limits, so if your house is in the City of Boulder this is the question to resolve first; outside the city limits it does not arise in the same way. Second, its corporate position has changed in a way its own site does not mention: the Roof Worx name is now a registered trade name of Roofworx ACQ., LLC, a Tennessee limited liability company based in Memphis, registered in Colorado on 21 November 2025 with the trade names effective 7 January 2026, which has the appearance of an acquisition. Its founding year is also contested, with its own site saying 2006 and the BBB recording 1 July 1999. We publish this because a ranking that only prints the flattering findings is an advertisement, not an assessment.
Verify the certification yourself on the GAF registry listing. The number carried on that listing is (303) 353-1825, which is the registry’s contact line and is often a directory tracking number rather than the contractor’s own: take the number from the company’s own website and compare the two.
4. PRQ Exteriors — TRB Score 87.3
PRQ Exteriors is based in Golden, CO, in business since 2014, led by Patrick R. Quinn, Owner and President, BBB accredited, A+ rating, and holds President’s Club standing on the GAF certification registry.
Certifications held: President’s Club (GAF), City of Boulder Class D-2 Roofing licence, verified on the city register, Owens Corning Platinum Preferred, President’s Club 3 Star Residential 2026, Colorado Roofing Association contractor member, Roofing and Solar Reform Alliance member. Certification by more than one manufacturer is uncommon and requires meeting each programme’s separate standards for insurance, training and track record.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 35 | 35 |
| Adjusted rating | 32.2 | 40 |
| Review corpus depth | 15.0 | 15 |
| Metro proximity | 5.1 | 10 |
| Total | 87.3 | 100 |
Independently corroborated:
- Class D-2 Roofing licence LIC-00991426, status Issued, expiring 21 May 2027, registered to PRQ Exteriors.. City of Boulder licensed contractor register
- PRQ Exteriors is the registered trade name of PRQ, LLC, formed 7 December 2014 in Colorado, matching both the company’s own claim and the BBB start date.. Colorado Secretary of State business entity register
- Accredited with an A+ rating at the Golden address.. BBB business profile
What they actually do. Roof replacement and exterior work, with a dedicated Boulder location, operating from Golden and further offices outside Colorado.
Why it ranks here. The deepest customer record in the metro at 950 reviews, with President’s Club certification from GAF and, unusually, top-tier Platinum Preferred status with Owens Corning as well, which very few contractors hold from both manufacturers at once. Its City of Boulder Class D-2 licence is verified by number, its Colorado formation date matches its own account, it is a Colorado Roofing Association member and it maintains a dedicated Boulder location page.
Best fit for: Homeowners who want top-tier standing with two manufacturers and the largest verified review base in the county.
What we would want clarified. It is based in Golden, in Jefferson County, with further offices in Grand Junction and outside Colorado, so this is a regional operation rather than a Boulder County business; ask who will actually be on your roof. Its 4.8 rating is the lowest of the five ranked here, though across much the largest sample. Its BBB profile is filed under general contractor rather than roofing. We publish this because a ranking that only prints the flattering findings is an advertisement, not an assessment.
Verify the certification yourself on the GAF registry listing. The number carried on that listing is (303) 214-0703, which is the registry’s contact line and is often a directory tracking number rather than the contractor’s own: take the number from the company’s own website and compare the two.
5. Reliable Roofing & Restoration Inc — TRB Score 79.3
Reliable Roofing & Restoration Inc is based in Westminster, CO, in business since 1997, led by Paula Gottino, registered agent on the Colorado Secretary of State record, BBB accredited, A+ rating, and holds Master Elite standing on the GAF certification registry.
Certifications held: Master Elite (GAF), City of Boulder Class D-2 Roofing licence, verified on the city register. Certification by more than one manufacturer is uncommon and requires meeting each programme’s separate standards for insurance, training and track record.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 24 | 35 |
| Adjusted rating | 36.0 | 40 |
| Review corpus depth | 12.8 | 15 |
| Metro proximity | 6.5 | 10 |
| Total | 79.3 | 100 |
Independently corroborated:
- Class D-2 Roofing licence LIC-00994610, status Issued, expiring 13 August 2027, registered to Reliable Roofing and Restoration Inc at the Westminster address.. City of Boulder licensed contractor register
- Reliable Roofing and Restoration Inc. formed 23 April 1997, in Good Standing, at the Westminster address, independently supporting the company’s own since-1997 claim.. Colorado Secretary of State business entity register
- Accredited with an A+ rating.. BBB business profile
What they actually do. Roof replacement and restoration across Boulder, Longmont, Louisville, Lafayette and Erie.
Why it ranks here. The longest-established contractor on this page at 28 years, and one of the few Colorado roofers in this programme whose founding claim is independently confirmed rather than contradicted: the Secretary of State record shows formation on 23 April 1997, matching its own since-1997 statement. Colorado roofers get this wrong often enough that getting it right is itself a signal. Its City of Boulder Class D-2 licence is verified by number and it holds 4.9 across 354 reviews.
Best fit for: Homeowners who want the longest verifiable local history and a licence they can check in a minute.
What we would want clarified. It holds Master Elite rather than the top President’s Club tier, which is why it ranks fifth. It publishes no manufacturer credential outside GAF at all, the thinnest credential set on this page. It is based in Westminster, in Adams County outside Boulder County, and the only individual named on any public record is its registered agent rather than a stated owner. We publish this because a ranking that only prints the flattering findings is an advertisement, not an assessment.
Verify the certification yourself on the GAF registry listing. The number carried on that listing is (303) 657-3009, which is the registry’s contact line and is often a directory tracking number rather than the contractor’s own: take the number from the company’s own website and compare the two.
What 3.0 inch hail does to a Boulder roof
Aggregate hail counts tell you very little about a specific roof. These are the individual events: every severe-weather report logged by the National Weather Service across the 1 county of the Boulder, CO statistical area over ten years, with the dates, the stone sizes and the towns they landed on. Over that decade the metro logged 131 hail reports, 9 severe thunderstorm and high wind reports and 0 tornadoes. The database’s property-damage fields are left blank for most of these reports, so it carries no usable loss total for this metro and we do not quote one.
The biggest hail to fall on Boulder in a decade
| Date | Stone size | Reported near | County |
|---|---|---|---|
| 18 June 2018 | 3.0 in | Superior | Boulder |
| 5 July 2019 | 2.5 in | Louisville | Boulder |
| 18 June 2018 | 2.5 in | Lafayette | Boulder |
| 5 July 2019 | 2.0 in | Louisville | Boulder |
| 5 July 2019 | 2.0 in | Lafayette | Boulder |
| 18 June 2018 | 2.0 in | Boulder | Boulder |
The largest stone on record for this metro fell on 18 June 2018 near Superior, measured at 3.0 inches. That is baseball sized, comfortably past the point where a roof is written off rather than repaired.
Wind. The strongest thunderstorm gust logged in the metro was 61 knots, about 70 mph, near Niwot on 4 August 2017. Asphalt shingles begin lifting at roughly 67 mph when they are correctly nailed, and considerably below that when they are not.
What the National Weather Service wrote about it
The NWS logs a written account of each severe-weather episode. This is its description of the 4 August 2017 event near Niwot, reproduced verbatim:
Intense thunderstorm winds snapped tree branches which knocked down power lines. Power outages were reported along CO 52 near County Line Road. Outages were also reported in the vicinity CO 52 and CO 287.
That is what the specification has to anticipate here, written up by the agency that recorded it rather than by a contractor selling the repair.
When it happens. Severe weather reports cluster in June (48), July (38), May (28). The worst years on record were 2018 (47), 2019 (44), 2025 (16). If you are scheduling non-urgent work in Boulder, the months outside that window are when crews are least stretched and least likely to be triaging emergency callouts ahead of your job.
Source: NOAA National Centers for Environmental Information, Storm Events Database, county-level detail files 2016 to 2025, filtered to the counties of this statistical area by The Roofing Brief. Damage figures are as reported to the NWS and undercount insured losses.
What to do with this. Boulder sees enough damaging hail that a Class 4 impact-rated shingle is worth pricing, though not automatically worth buying. Get both quotes and weigh the premium against any insurance discount.
What the Marshall Fire changed for an ordinary Boulder County reroof
On 30 December 2021 a fire began near Colorado State Highway 93 and Eldorado Springs Drive and burned east through unincorporated Boulder County into Superior and Louisville. Boulder County’s own after-action report records the result: 1,084 homes and seven commercial structures destroyed, 149 homes and 30 commercial structures damaged, roughly 6,000 acres burned by the following morning, and two deaths. It remains the most destructive wildfire in Colorado’s history, and it happened in the last week of December.
The mechanism matters, because it is not the one most people picture. This was not a forest fire. It was a grass fire driven by a mountain-wave downslope windstorm, the kind that develops when very strong westerly winds race over the Front Range and accelerate down the eastern slope. The National Weather Service recorded a peak gust of 115 mph at Arvada and 110 mph at Rocky Flats around midday, and the county’s report describes gusts of 70 to 100 mph at the base of the foothills. The fuel was cured grass after a wet spring and an exceptionally dry second half of the year, with relative humidity around 20 percent. The official cause determination, published on 8 June 2023 by the 20th Judicial District Attorney and the Boulder County Sheriff, identified two ignition points and brought no charges.
What followed is the part that reaches your roof. Boulder County added a wildfire-resilience chapter to its building code, IRC section R390, dividing the unincorporated county into Wildfire Zone 1-West County and Wildfire Zones 2 and 3-East County, the eastern zones covering the grassland plains where the fire burned. Section R390.4.1 requires a roof assembly complying with a Class A rating when tested to ASTM E108 or UL 790, and the county’s own guidance puts it plainly for homeowners: a Class A roof covering or assembly is required in all Wildfire Zones. Ventilation openings must be ember-resistant, either by using vents tested to ASTM E2886 with no flaming ignition and no flame penetration, or by a prescriptive route.
The provision a homeowner actually needs to know is R390.4.1.4, on existing roof structures. Where a building predating the code has its roof covering replaced, or has 25 percent or more of the roof surface replaced, the covering must be brought up to the standard required for new construction. In other words this is not a rule that only applies when you rebuild after a fire. It applies when you reroof. Put that next to the county-wide Class 4 impact requirement and an unincorporated Boulder County reroof has to satisfy two separate performance standards at once: Class A for fire and Class 4 for impact. Inside the City of Boulder the answer is different again, because the city adopted the 2024 International Wildland-Urban Interface Code with local amendments effective 1 August 2025, and its requirements apply when a permit is issued and are limited to the proposed scope of work.
The same reroof, two sets of rules, depending on which side of the city limit you are
| Requirement | Unincorporated Boulder County | City of Boulder |
|---|---|---|
| Impact resistance | Class 4 to UL 2218 mandatory on asphalt shingles | No impact-resistance requirement |
| Fire rating | Class A assembly to ASTM E108 or UL 790 in all Wildfire Zones | Class A materials required, wood roofing prohibited |
| Triggered by a reroof? | Yes. Replacing 25% or more of the roof surface brings the whole covering up to standard, under R390.4.1.4 | Applies when a permit is issued, limited to the scope of work |
| Code edition | 2021 I-codes with county amendments | 2024 I-codes, Ordinance 8684 |
| Permit | Required for new or replacement roof coverings, valuation-based fee | Required, Roofing Replacement permit type, valuation-based fee |
Source: Boulder County Marshall Fire after-action report; Marshall Fire Investigative Summary and Review, 8 June 2023; NWS Boulder; 2021 Amendments to the Boulder County Building Code, IRC sections R390 and R905.2.4.2; City of Boulder Residential Building Permit Guide and Ordinance 8684.
What a Boulder homeowner should ask for in writing
There is no state roofing licence in CO. Colorado issues no statewide roofing licence. The Department of Regulatory Agencies does not licence roofers at all. Licensing and permitting happen entirely at city and county level, and requirements differ sharply between jurisdictions.
Denver requires a Specialty Class D certificate to roof, and to obtain one an individual must first hold a Supervisor Certificate and document two years of field experience across at least 24 projects in 24 different months. Denver grants no reciprocity with other counties or states.
That absence is the most important fact on this page. Where a state issues no credential, a manufacturer certification that can be revoked is the only quality signal a homeowner can actually check, which is why this ranking is built on certification rather than star ratings.
Check here: Denver Community Planning and Development contractor licensing. Confirm the contractor holds a licence for the specific municipality your home sits in, and that they, not you, pull the roofing permit.
Four checks to run before you sign anything, in any state.
- Verify certification at the source. Use the GAF verification tool rather than trusting a badge image on a company website.
- Get the certificate of insurance from the insurer, not the contractor, and confirm general liability and workers compensation are both active on the day work starts.
- Confirm who pulls the permit. If a contractor asks you to pull it as the homeowner, that moves liability onto you. Decline.
- Get warranty terms in writing before any deposit, and check the manufacturer warranty being promised actually requires the certification tier the contractor holds.
How many certified roofers Boulder actually has
13 certified roofing contractors serve the principal cities of the Boulder, CO statistical area, of which 4 hold the top President’s Club tier. The pool carries 3,568 customer reviews between them at a mean rating of 4.892. The statistical area had a 2024 population of 330,262, a change of -0.15% against the 2020 census base, per the U.S. Census Bureau Vintage 2024 estimates.
How these Boulder rankings were produced
Every contractor in the Boulder, CO pool was scored out of 100 on four published components: certification tier, a Bayesian adjusted rating, review depth and distance from the metro centre. In this metro that meant scoring 13 certified contractors, of whom 4 hold President’s Club standing and 9 Master Elite, against a metro mean rating of 4.892. The top five were then researched individually against Better Business Bureau records, state licence registers and manufacturer directories. The findings are printed above whether they flatter the contractor or not, and nobody paid to appear.
The full method, the weightings, what the GAF certification tiers actually mean, who is eligible to be ranked and what we do not claim are all set out on our roofer ranking methodology page. Last updated: October 2026. Scoring run: 2026-10-01. Corrections go to the editor and are actioned on verification.
Common questions about roofers in Boulder
Who is the best roofer in Boulder, CO?
WestPro Home Exteriors of Longmont, CO scores highest in the Boulder metro on The Roofing Brief Contractor Score, at 96.1 out of 100 as of October 2026. It holds President’s Club certification with a 5.0 rating across 783 reviews. Highest-scoring is not the same as best fit for your specific job, and the four companies behind it score within 16.8 points.
How many certified roofing contractors serve Boulder?
13 contractors on the GAF certification registry serve the principal cities of the Boulder, CO statistical area as of October 2026, of which 4 hold President’s Club status.
How much damaging hail does Boulder get?
The Boulder, CO statistical area recorded 97 hail reports of 1 inch or larger and 8 of 2 inches or larger between 2016 and 2025 in the NOAA Storm Events Database. The largest hailstone reported measured 3.0 inches.
Did any contractor pay to appear on this list?
No. The Roofing Brief takes no placement fees, no lead fees and no affiliate commission from any roofing contractor. Ranking comes entirely from the published formula applied to public registry data, followed by an individual research pass on the top five.
What was the worst hailstorm in Boulder in the last ten years?
The largest hailstone logged by the National Weather Service in the Boulder, CO statistical area between 2016 and 2025 measured 3.0 inches, reported near Superior on 18 June 2018. That is baseball sized, comfortably past the point where a roof is written off rather than repaired. Across the decade the metro recorded 131 hail reports. The database’s property-damage fields are left blank for most of these reports, so it carries no usable loss total for this metro and we do not quote one.
When is the worst time of year for roof damage in Boulder?
Severe-weather reports in the Boulder, CO statistical area cluster in June, July, May, on the NOAA record for 2016 to 2025. If the work can wait, booking outside that window usually buys you shorter lead times and more of the contractor’s attention.
Do roofers need a licence in CO?
Colorado issues no statewide roofing licence. The Department of Regulatory Agencies does not licence roofers at all. Licensing and permitting happen entirely at city and county level, and requirements differ sharply between jurisdictions. Denver requires a Specialty Class D certificate to roof, and to obtain one an individual must first hold a Supervisor Certificate and document two years of field experience across at least 24 projects in 24 different months. Denver grants no reciprocity with other counties or states.
What should I check before hiring a roofer in Boulder?
Confirm the contractor holds a licence for the specific municipality your home sits in, and that they, not you, pull the roofing permit.
What the Marshall Fire changed for an ordinary Boulder County reroof?
On 30 December 2021 a fire began near Colorado State Highway 93 and Eldorado Springs Drive and burned east through unincorporated Boulder County into Superior and Louisville. Boulder County’s own after-action report records the result: 1,084 homes and seven commercial structures destroyed, 149 homes and 30 commercial structures damaged, roughly 6,000 acres burned by the following morning, and two deaths. It remains the most destructive wildfire in Colorado’s history, and it happened in the last week of December.
Is Boulder a hard market to find a good roofer in?
Boulder County is the only metro in this programme where the roofing rules change depending on which side of a city limit your house sits, and where a wildfire rewrote them. Unincorporated Boulder County requires Class 4 impact-resistant asphalt shingles, tested to UL 2218, on essentially any reroof. The City of Boulder does not, requiring Class A and banning wood instead. The county enforces the 2021 codes, the city the 2024 ones. And since the Marshall Fire destroyed 1,084 homes on 30 December 2021, the county’s wildfire amendments reach existing houses: replace a quarter of your roof surface or more and the whole covering has to come up to the new-construction standard. The city also publishes a licensed-contractor register, which let us check every firm below against it, and one of them is not on it.
Roofer rankings for other metros
The Roofing Brief scores certified roofing contractors in the 400 largest U.S. metropolitan and micropolitan areas on the same formula.
- Best roofers in Denver, CO, about 27 miles from Boulder
- Best roofers in Greeley, CO, about 37 miles from Boulder
- Best roofers in Fort Collins, CO, about 38 miles from Boulder
- Best roofers in Colorado Springs, CO, another CO metro on the same formula
- Best roofers in Green Bay, WI, a metro of comparable size
- Best roofers in South Bend, IN, a metro of comparable size
- Best roofers in Salt Lake City, UT, also scored, about 355 miles away
- Best roofers in Ogden, UT, also scored, about 362 miles away
See the full index of all 400 metro roofer rankings, or read how to find and vet a roofing contractor anywhere in the country.
Cite this analysis
The Roofing Brief. “Best Roofers in Boulder, CO: The Roofing Brief Contractor Score.” Published October 2026. Inputs: GAF certification registry; NOAA Storm Events Database 2016-2025; U.S. Census Bureau Vintage 2024 population estimates; Better Business Bureau and independent review-platform records for each ranked contractor.