Short answer: As of September 2026, the five highest-scoring roofing contractors in the Manchester-Nashua, NH metro on The Roofing Brief Contractor Score are MGS Construction (95.1), Queen City Roofing (93.3), Roofing King (92.7), iROOF (89.8), Innovative Roofing NH (89.2). Every one holds a manufacturer certification that can be verified independently, every rating below has been corroborated against at least one source outside the certification registry, and no company paid to appear here.
The Roofing Brief scored 11 certified roofing contractors serving the Manchester metro on a published, reproducible formula, then researched each of the top five individually to confirm its record. Hillsborough County has the strongest certified field in this batch: eleven contractors, six of them President’s Club, and a metro mean rating of 4.94. All five ranked below hold the top tier, and 5.9 points separate first from fifth. That is a good problem to have, and it shifts the decision from certification to fit: distance, workload and how each firm deals with winter. New Hampshire gives you nothing official to check them against. The state issues no licence or registration for roofers or home improvement contractors, and the protection the law does provide is procedural, a written notice-and-repair process under RSA 359-G before you can sue over a defect. The weather is summer thunderstorms and winter ice rather than tornadoes: none in ten years, but 149 wind reports, including a July 2024 microburst in Milford that damaged seven homes and brought down about 150 trees.
What a Manchester roof is up against
Because contractor law here is thin, know the one statute that applies. RSA 359-G sets a mandatory pre-suit process for residential construction defects: you serve the contractor with a written notice of claim, by certified mail or in hand, at least 60 days before filing suit, describing the defect in detail and handing over the evidence you hold. The contractor then has 30 days to offer a repair or payment, propose an inspection, or reject the claim. On any contract above $5,000, which covers nearly every full re-roof, the contractor must give you conspicuous written notice of that process when you sign. Keep the contract, dated photographs and every message from the start of the job.
The Attorney General’s Consumer Protection Bureau fills the gap left by licensing with plain advice: ask the Bureau and the Better Business Bureau about complaint history, insist on a physical business address rather than a post office box, limit the down payment, and get lien waivers covering any subcontractors so an unpaid supplier cannot put a mechanic’s lien on your house. Its warning signs start with door-to-door solicitation and demands for cash or large payments up front. All five contractors below are BBB accredited, which in a state without a licence register is one of the few external records available.
Winter is the design case. The roof problem most specific to southern New Hampshire is the ice dam: heat escaping into the attic melts snow that refreezes at the cold eave and backs water under the shingles. The residential code’s answer is an ice barrier membrane from the eave to at least 24 inches inside the exterior wall line, and the lasting fix is air sealing, insulation and ventilation in the attic, so ask each contractor what they will do about the attic, not just the covering. Manchester’s own building code amendments, adopted in July 2021, strike out several of the International Residential Code’s permit exemptions rather than adding any, so assume a re-roof in the city needs a permit and confirm with the Building Division.
Summer hail is real but moderate: 37 reports over the decade, all an inch or larger, the biggest 1.75 inches in western Hillsborough County in June 2021, and a 1.5-inch stone that cracked a windshield southeast of Manchester in September 2025. The ranked field reflects the county’s position on a state line. MGS Construction works from Salem, 19 miles southeast, and Roofing King from Tyngsborough, just over the Massachusetts border, 20 miles away. A Massachusetts address does not change the rules for your job: New Hampshire law governs a contract for a New Hampshire house, and Massachusetts’ home improvement registration and its guaranty fund do not follow the crew across the border.
The 5 best roofers in Manchester, NH
Scored 2026-09-25. The metro mean rating used as the Bayesian prior for Manchester is 4.936, across a pool of 11 certified contractors.
| Rank | Company | TRB Score | Certification | Rating (reviews) | Adjusted | In business since | Based in |
|---|---|---|---|---|---|---|---|
| 1 | MGS Construction | 95.1 | President’s Club | 5.0 (586) | 4.995 | not published | Salem, NH |
| 2 | Queen City Roofing | 93.3 | President’s Club | 4.9 (324) | 4.905 | 2009 | Bedford, NH |
| 3 | Roofing King | 92.7 | President’s Club | 5.0 (266) | 4.99 | not published | Tyngsborough, MA |
| 4 | iROOF | 89.8 | President’s Club | 5.0 (50) | 4.968 | 2010 | Litchfield, NH |
| 5 | Innovative Roofing NH | 89.2 | President’s Club | 4.8 (65) | 4.859 | not published | Manchester, NH |
1. MGS Construction — TRB Score 95.1
Trades as MGS Construction; listed on the GAF registry as MGS Construction LLC.
MGS Construction is based in Salem, NH, led by Manuel Gendron, BBB accredited since 17 October 2012, A+, and holds President’s Club standing on the GAF certification registry.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 35 | 35 |
| Adjusted rating | 39.8 | 40 |
| Review corpus depth | 15.0 | 15 |
| Metro proximity | 5.3 | 10 |
| Total | 95.1 | 100 |
Independently corroborated:
- Accredited since 17 October 2012. BBB
- Review profile under the name M. Gendron and Son Construction, LLC, Salem, NH. HomeAdvisor
What they actually do. Residential and commercial roofing, siding, windows and condominium work across New Hampshire, Massachusetts and southern Maine.
Why it ranks here. President’s Club with a perfect 5.0 across 586 reviews, the strongest record in the metro, scoring 95.1. It leads by 1.8 points despite sitting 19 miles from the centre.
Best fit for: Londonderry, Windham and border-town homeowners, and condominium associations.
What we would want clarified. Nineteen miles away, with a three-state service area, so Massachusetts demand competes for crews; get the start date in writing. Some review platforms list the business as M. Gendron and Son Construction. 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 (603) 216-2633, 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. Queen City Roofing — TRB Score 93.3
Trades as Queen City Roofing; listed on the GAF registry as Queen City Roofing LLC.
Queen City Roofing is based in Bedford, NH, in business since 2009, led by Tom McAndrew, BBB accredited since 9 April 2015, and holds President’s Club standing on the GAF certification registry.
Certifications held: President’s Club (GAF), GuildQuality 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 | 36.2 | 40 |
| Review corpus depth | 13.6 | 15 |
| Metro proximity | 8.5 | 10 |
| Total | 93.3 | 100 |
Independently corroborated:
- Accredited since 9 April 2015. BBB
- Customer satisfaction survey profile. GuildQuality
What they actually do. Residential roof replacement; a family business in which the owners’ children work alongside them.
Why it ranks here. President’s Club, 4.9 across 324 reviews, scoring 93.3, and the closest of the top three to the city at six miles.
Best fit for: Manchester, Bedford and Goffstown homeowners who want a top-tier firm on the doorstep.
What we would want clarified. Its 4.9 sits fractionally below this unusually high metro mean. Ask whether the crew installing your roof is employed in-house. 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 (603) 289-4663, 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. Roofing King — TRB Score 92.7
Roofing King is based in Tyngsborough, MA, led by Craig LaCrosse, BBB accredited since 5 October 2012, and holds President’s Club standing on the GAF certification registry.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 35 | 35 |
| Adjusted rating | 39.6 | 40 |
| Review corpus depth | 13.1 | 15 |
| Metro proximity | 5.0 | 10 |
| Total | 92.7 | 100 |
Independently corroborated:
- Accredited since 5 October 2012 as Roofing King Inc., Tyngsboro, MA. BBB
What they actually do. Roof replacement, siding, gutters and skylights; family-owned, with offices in Tyngsboro, MA and Hampton, NH.
Why it ranks here. President’s Club, 5.0 across 266 reviews, scoring 92.7, 0.6 behind Queen City Roofing.
Best fit for: Nashua, Hudson and Pelham homeowners near the state line.
What we would want clarified. Massachusetts-based, 20 miles from Manchester, and also listed on the registry under Hampton, NH. Confirm which office serves your address and that the contract is written for a New Hampshire job. 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 (978) 800-1254, 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. iROOF — TRB Score 89.8
iROOF is based in Litchfield, NH, in business since 2010, led by Steven Marchand, BBB accredited since 20 March 2014, and holds President’s Club standing on the GAF certification registry.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 35 | 35 |
| Adjusted rating | 38.7 | 40 |
| Review corpus depth | 9.3 | 15 |
| Metro proximity | 6.8 | 10 |
| Total | 89.8 | 100 |
Independently corroborated:
- Accredited since 20 March 2014 as iROOF LLC. BBB
What they actually do. Residential and commercial roofing in asphalt, rubber, metal, PVC and TPO, plus repairs.
Why it ranks here. President’s Club, 5.0 from 50 reviews, scoring 89.8. The thinnest review record in this top five, which is most of the gap to third.
Best fit for: Merrimack, Litchfield and Hudson homeowners, and houses with low-slope sections needing rubber or TPO.
What we would want clarified. Fifty reviews is solid but the smallest base here, so ask for recent local references. 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 (603) 718-1079, 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. Innovative Roofing NH — TRB Score 89.2
Trades as Innovative Roofing NH; listed on the GAF registry as Innovative Roofing NH LLC.
Innovative Roofing NH is based in Manchester, NH, led by Dan Robinson, Jarret Kazanjian and Boyd Foulds, BBB accredited since 1 August 2022 (profile filed under Derry, NH), and holds President’s Club standing on the GAF certification registry.
Certifications held: President’s Club (GAF), Owens Corning contractor network. 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 | 34.4 | 40 |
| Review corpus depth | 9.9 | 15 |
| Metro proximity | 10.0 | 10 |
| Total | 89.2 | 100 |
Independently corroborated:
- Accredited since 1 August 2022. BBB
- Contractor profile in the Owens Corning network. Owens Corning
- Member listing. Greater Salem Chamber of Commerce
What they actually do. Residential and commercial roofing, replacement and repair across Manchester, Bedford, Londonderry, Merrimack, Derry and Hooksett.
Why it ranks here. The only Manchester-based firm in the top five: President’s Club, 4.8 across 65 reviews, scoring 89.2.
Best fit for: City of Manchester homeowners who want the closest top-tier contractor.
What we would want clarified. Its 4.8 is the lowest rating in this top five and below the metro mean, and BBB accreditation dates only from 2022. 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 (339) 224-1226, 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.
The 149 wind reports that shape a Manchester 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 Manchester-Nashua, NH statistical area over ten years, with the dates, the stone sizes and the towns they landed on. Over that decade the metro logged 37 hail reports, 149 severe thunderstorm and high wind reports and 0 tornadoes. Reported property damage from hail, severe wind and tornado over that decade totalled $1.1 million; flood and winter-storm losses are counted separately and are not included.
The biggest hail to fall on Manchester in a decade
| Date | Stone size | Reported near | County |
|---|---|---|---|
| 30 June 2021 | 1.75 in | Wilder | Hillsborough |
| 5 August 2024 | 1.5 in | Elmwood | Hillsborough |
| 6 September 2025 | 1.5 in | Hillsborough | Hillsborough |
| 22 May 2022 | 1.5 in | Goffstown | Hillsborough |
| 3 May 2025 | 1.25 in | North Brooking | Hillsborough |
| 6 June 2025 | 1.25 in | South Weare | Hillsborough |
The largest stone on record for this metro fell on 30 June 2021 near Wilder, measured at 1.75 inches. That is ping-pong-ball sized, enough to bruise asphalt shingles and shorten a roof’s life without necessarily looking dramatic from the ground.
Wind. The strongest thunderstorm gust logged in the metro was 83 knots, about 96 mph, near South Milford on 16 July 2024. 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 16 July 2024 event near South Milford, reproduced verbatim:
The NWS Storm survey team confirmed straight line wind damage in Milford, NH due to a microburst. The team observed 7 damaged homes….two destroyed vehicles and approximately 150 downed trees. No known injuries or fatalities occurred with this storm.
A roof in this metro is built against events like that one, as recorded by the agency that recorded it rather than by a contractor selling the repair.
When it happens. Severe weather reports cluster in July (73), August (35), June (29). The worst years on record were 2022 (29), 2024 (29), 2016 (21). If you are scheduling non-urgent work in Manchester, 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. Hail is not the governing risk in Manchester. Weight your decision toward wind rating, ventilation and flashing detail rather than paying extra for impact-rated shingles.
Three things to confirm before work starts in Manchester
There is no state roofing licence in NH. New Hampshire issues no state roofing licence, and no state licence or registration for general or home improvement contractors. There is no state exam, no state register to search and no board that can discipline a roofer.
The protection state law does provide is procedural. Under RSA 359-G, a homeowner must serve written notice of a construction defect claim at least 60 days before suing, the contractor has 30 days to offer a repair or payment, propose an inspection or reject the claim, and on any residential construction or improvement contract above $5,000 the contractor must give conspicuous written notice of that process at signing.
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: New Hampshire Attorney General, Consumer Protection and Antitrust Bureau (1-888-468-4454). With no licence to check, the Attorney General’s Consumer Protection Bureau advises asking the Bureau and the Better Business Bureau about complaint history, insisting on a physical business address, limiting the down payment and obtaining lien waivers for any subcontractors’ work. New Hampshire also requires workers’ compensation cover of any contractor with employees, so ask for the certificate.
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 deep the Manchester certified market really is
11 certified roofing contractors serve the principal cities of the Manchester-Nashua, NH statistical area, of which 6 hold the top President’s Club tier. The pool carries 2,835 customer reviews between them at a mean rating of 4.936. The statistical area had a 2024 population of 430,462, a change of 1.78% against the 2020 census base, per the U.S. Census Bureau Vintage 2024 estimates.
How these Manchester rankings were produced
Every contractor in the Manchester-Nashua, NH 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 11 certified contractors, of whom 6 hold President’s Club standing and 5 Master Elite, against a metro mean rating of 4.936. The top five were then researched individually against Better Business Bureau records, state licence registers and manufacturer directories. Where that research turned up something awkward it is on the page, and no placement was paid for.
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: September 2026. Scoring run: 2026-09-25. Corrections go to the editor and are actioned on verification.
What Manchester homeowners want to know
Who is the best roofer in Manchester, NH?
MGS Construction of Salem, NH scores highest in the Manchester metro on The Roofing Brief Contractor Score, at 95.1 out of 100 as of September 2026. It holds President’s Club certification with a 5.0 rating across 586 reviews. Highest-scoring is not the same as best fit for your specific job, and the four companies behind it score within 5.9 points.
How many certified roofing contractors serve Manchester?
11 contractors on the GAF certification registry serve the principal cities of the Manchester-Nashua, NH statistical area as of September 2026, of which 6 hold President’s Club status.
How much damaging hail does Manchester get?
The Manchester-Nashua, NH statistical area recorded 37 hail reports of 1 inch or larger and 0 of 2 inches or larger between 2016 and 2025 in the NOAA Storm Events Database. The largest hailstone reported measured 1.75 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 Manchester in the last ten years?
The largest hailstone logged by the National Weather Service in the Manchester-Nashua, NH statistical area between 2016 and 2025 measured 1.75 inches, reported near Wilder on 30 June 2021. That is ping-pong-ball sized, enough to bruise asphalt shingles and shorten a roof’s life without necessarily looking dramatic from the ground. Across the decade the metro recorded 37 hail reports. Reported property damage from hail, severe wind and tornado over that decade totalled $1.1 million; flood and winter-storm losses are counted separately and are not included.
When is the worst time of year for roof damage in Manchester?
Severe-weather reports in the Manchester-Nashua, NH statistical area cluster in July, August, June, on the NOAA record for 2016 to 2025. Outside those months local crews are not triaging storm damage, so lead times are shorter and scheduling is easier.
Do roofers need a licence in NH?
New Hampshire issues no state roofing licence, and no state licence or registration for general or home improvement contractors. There is no state exam, no state register to search and no board that can discipline a roofer. The protection state law does provide is procedural. Under RSA 359-G, a homeowner must serve written notice of a construction defect claim at least 60 days before suing, the contractor has 30 days to offer a repair or payment, propose an inspection or reject the claim, and on any residential construction or improvement contract above $5,000 the contractor must give conspicuous written notice of that process at signing.
What should I check before hiring a roofer in Manchester?
With no licence to check, the Attorney General’s Consumer Protection Bureau advises asking the Bureau and the Better Business Bureau about complaint history, insisting on a physical business address, limiting the down payment and obtaining lien waivers for any subcontractors’ work. New Hampshire also requires workers’ compensation cover of any contractor with employees, so ask for the certificate.
Is Manchester a hard market to find a good roofer in?
Hillsborough County has the strongest certified field in this batch: eleven contractors, six of them President’s Club, and a metro mean rating of 4.94. All five ranked below hold the top tier, and 5.9 points separate first from fifth. That is a good problem to have, and it shifts the decision from certification to fit: distance, workload and how each firm deals with winter. New Hampshire gives you nothing official to check them against. The state issues no licence or registration for roofers or home improvement contractors, and the protection the law does provide is procedural, a written notice-and-repair process under RSA 359-G before you can sue over a defect. The weather is summer thunderstorms and winter ice rather than tornadoes: none in ten years, but 149 wind reports, including a July 2024 microburst in Milford that damaged seven homes and brought down about 150 trees.
Is wind or hail the bigger risk to a roof in Manchester?
Wind, by a wide margin. The Manchester-Nashua, NH statistical area logged 149 severe thunderstorm and high wind reports against 37 hail reports of an inch or more between 2016 and 2025. Wind damage shows up at the rake, ridge and edge rather than across the field of the roof, so the fastening schedule and edge detail matter more here than the impact rating of the shingle.
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 Boston, MA, about 50 miles from Manchester
- Best roofers in Worcester, MA, about 53 miles from Manchester
- Best roofers in Savannah, GA, a metro of comparable size
- Best roofers in Brownsville, TX, a metro of comparable size
- Best roofers in Portland, ME, also scored, about 78 miles away
- Best roofers in Burlington, VT, also scored, about 137 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 Manchester, NH: The Roofing Brief Contractor Score.” Published September 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.