Short answer: As of September 2026, the two highest-scoring roofing contractors in the Oxnard-Thousand Oaks-Ventura, CA metro on The Roofing Brief Contractor Score are NEMA Roofing (85.8), Immaculate Roofing Inc. (58.5). 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 2 certified roofing contractors serving the Oxnard metro on a published, reproducible formula, then researched each of the top two individually to confirm its record. This page ranks two contractors. That is not a gap in the research; it is the finding, and it is the starkest one in this programme. Ventura County has 835,000 residents and, within forty miles of Oxnard, exactly two manufacturer-certified roofing contractors that carry enough public reviews to assess. We checked every city in the county: Ventura, Camarillo, Thousand Oaks, Simi Valley, Moorpark, Ojai, Fillmore, Santa Paula, Port Hueneme, Newbury Park, Westlake Village and Agoura Hills. The certification registry fills the rest of its Ventura County results with San Fernando Valley firms in Tarzana, Reseda, Northridge, Woodland Hills and Burbank, 45 to 55 miles away in Los Angeles County. Those companies are real, many are excellent, and they will absolutely take work in Ventura County. We exclude them because they are ranked on the Los Angeles page, where they are actually based, and because a roofer 50 miles away is a different proposition when a warranty callback is needed in year six. If neither contractor below suits you, widening the search into the west Valley is a reasonable next step, but do it knowingly rather than because a directory quietly counted those firms as local. California’s C-39 licence is the compensating check here: four years of journey-level experience, two exams, and a CSLB record that publishes full complaint and disciplinary history.
What actually ages an Oxnard roof
Ventura County’s coastal strip has effectively no hail or thunderstorm record: NOAA logs zero hail reports for the county across the entire decade, 14 severe wind reports and two brief EF0 tornadoes, at Ventura on Christmas Day 2019 and at Oxnard in February 2025. What the file does not capture is the wind that actually matters here. The Santa Ana events that drove the Thomas Fire in December 2017 produced one of the longest such wind episodes on record in this county, and offshore wind loads a roof from the opposite direction to the sea breeze it usually sees.
That reversal is why edge detail matters more than field fastening on the coastal plain. Wind lifting from the leeward side finds ridge caps, rakes and eave courses first. On tile roofs, which are common here, ask specifically how ridge and hip tiles are secured and whether the underlayment is being replaced rather than reused, because the underlayment is what actually keeps the water out under a tile roof and it fails long before the tile does.
Salt air sets the materials question at Oxnard Shores, Mandalay Bay, Hollywood Beach and around the Channel Islands Harbour, where corrosion attacks fasteners, flashing, vents and edge metal well before the covering wears out. Stainless or coastal-rated metal and a finish warranty that covers salt exposure at your distance from the water are the details to insist on.
California’s energy code applies unevenly here, which is worth knowing before a contractor quotes it either way. Oxnard sits in climate zone 6, where the prescriptive cool-roof requirement applies to a low-slope re-roof but not to a steep-slope one, unlike the inland valleys of the same county in zone 9. Every job above $500 requires a C-39 licence, checkable on the CSLB record with its complaint and disciplinary history, and the City of Oxnard or Ventura County will want a permit for the replacement.
The 2 best roofers in Oxnard, CA
Scored 2026-09-19. The metro mean rating used as the Bayesian prior for Oxnard is 4.65, across a pool of 2 certified contractors.
| Rank | Company | TRB Score | Certification | Rating (reviews) | Adjusted | In business since | Based in |
|---|---|---|---|---|---|---|---|
| 1 | NEMA Roofing | 85.8 | Master Elite | 5.0 (170) | 4.92 | not published | Oxnard, CA |
| 2 | Immaculate Roofing Inc. | 58.5 | Master Elite | 4.3 (22) | 4.543 | not published | Agoura Hills, CA |
1. NEMA Roofing — TRB Score 85.8
NEMA Roofing is based in Oxnard, CA, led by Family owned, father and son, BBB profile on record, and holds Master Elite standing on the GAF certification registry.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 24 | 35 |
| Adjusted rating | 36.8 | 40 |
| Review corpus depth | 15.0 | 15 |
| Metro proximity | 10.0 | 10 |
| Total | 85.8 | 100 |
Independently corroborated:
- BBB profile on record with more than 175 five-star reviews. BBB
- A clean 5.0 across 193 reviews. Birdeye
- A 5.0 average across 155 reviews, placing it in the top 5 per cent of Oxnard providers. ServiceAgent
What they actually do. Full-service residential and commercial roofing across Ventura County.
Why it ranks here. A clean 5.0 across 170 registry reviews, corroborated at 5.0 on two further platforms, from the only certified contractor based in Oxnard itself. Its score of 85.8 leads the second-placed contractor by 27.3 points, one of the widest first-to-second gaps in this programme.
Best fit for: Oxnard, Ventura and coastal Ventura County homeowners. In this metro the gap is wide enough to effectively settle the decision.
What we would want clarified. Confirm the CSLB licence number in writing and check it on the CSLB record, which also shows complaint and disciplinary history. 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 (805) 977-5949, 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. Immaculate Roofing Inc. — TRB Score 58.5
Immaculate Roofing Inc. is based in Agoura Hills, CA, BBB profile on record, and holds Master Elite standing on the GAF certification registry.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 24 | 35 |
| Adjusted rating | 21.7 | 40 |
| Review corpus depth | 9.1 | 15 |
| Metro proximity | 3.6 | 10 |
| Total | 58.5 | 100 |
Independently corroborated:
- California contractor licence 959598, roofing classification, on the BBB record. CSLB
- BuildZoom score of 116, the top 2 per cent of California licensed contractors. BuildZoom
- 153 reviews on Yelp. Yelp
What they actually do. Residential and commercial roofing across the Conejo Valley and eastern Ventura County.
Why it ranks here. A CSLB licence number on public record and a BuildZoom ranking in the top 2 per cent of California contractors, covering the Conejo Valley end of the county that the Oxnard firms reach less easily.
Best fit for: Thousand Oaks, Agoura Hills, Westlake Village and Conejo Valley homeowners.
What we would want clarified. At 4.3 across 22 registry reviews this is the lowest rating in the Ventura County pool and a thin sample. The licence and BuildZoom position are what carry the score, not customer feedback. Read the Yelp reviews before deciding. 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 (818) 456-4654, 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.
16 severe weather reports in a decade, and why that matters in Oxnard
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 Oxnard-Thousand Oaks-Ventura, CA statistical area over ten years, with the dates, the stone sizes and the towns they landed on. Over that decade the metro logged 0 hail reports, 14 severe thunderstorm and high wind reports and 2 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.
Wind. The strongest thunderstorm gust logged in the metro was 71 knots, about 82 mph, near Newbury Park on 7 February 2024. Asphalt shingles begin lifting at roughly 67 mph when they are correctly nailed, and considerably below that when they are not.
Tornadoes. 2 tornadoes touched down in these counties over the decade, the strongest rated EF0 near Ventura on 25 December 2019.
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 October 2021 event near Wheeler Spgs, reproduced verbatim:
Gusty thunderstorm outflow winds impacted the mountains of Ventura county. The RAWS sensor at Rose Valley reported a gust of 77 MPH.
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 February (7), October (5), January (1). The worst years on record were 2025 (8), 2024 (3), 2016 (2). If you are scheduling non-urgent work in Oxnard, 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 Oxnard. Weight your decision toward wind rating, ventilation and flashing detail rather than paying extra for impact-rated shingles.
How to tell an Oxnard roofer’s claims from their record
Licensing is required in CA. California requires a Contractors State License Board licence for any job where labour and materials combined reach $1,000 or more, a threshold raised from $500 by Assembly Bill 2622 on 1 January 2025. The exemption never covers a reroof, because the Board treats any work that needs a permit as requiring a licence whatever its value. Roofing is the C-39 classification; a B General Building licence can also cover it.
A C-39 qualifier must document at least four years of journey-level experience and pass both a trade examination and a law and business examination. Every active licence carries a $25,000 contractor’s bond, and C-39 roofing licensees must carry workers’ compensation whether or not they have employees: roofing is one of the few classifications that cannot file the no-employee exemption.
Check here: CSLB Check a License. The CSLB record also shows complaint and disciplinary history, including citations and accusations. Treat any status other than Active as disqualifying.
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 Oxnard certified market really is
2 certified roofing contractors serve the principal cities of the Oxnard-Thousand Oaks-Ventura, CA statistical area, of which 0 hold the top President’s Club tier. The pool carries 192 customer reviews between them at a mean rating of 4.65. The statistical area had a 2024 population of 835,427, a change of -1.06% against the 2020 census base, per the U.S. Census Bureau Vintage 2024 estimates.
How these Oxnard rankings were produced
Every contractor in the Oxnard-Thousand Oaks-Ventura, CA 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 2 certified contractors, of whom 0 hold President’s Club standing and 2 Master Elite, against a metro mean rating of 4.65. The top two 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: 2026-09-19. Corrections go to the editor and are actioned on verification.
Questions Oxnard homeowners ask
Who is the best roofer in Oxnard, CA?
NEMA Roofing of Oxnard, CA scores highest in the Oxnard metro on The Roofing Brief Contractor Score, at 85.8 out of 100 as of September 2026. It holds Master Elite certification with a 5.0 rating across 170 reviews. Highest-scoring is not the same as best fit for your specific job, and the company behind it scores within 27.3 points.
How many certified roofing contractors serve Oxnard?
2 contractors on the GAF certification registry serve the principal cities of the Oxnard-Thousand Oaks-Ventura, CA statistical area as of September 2026, of which 0 hold President’s Club status.
How much damaging hail does Oxnard get?
The Oxnard-Thousand Oaks-Ventura, CA statistical area recorded 0 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 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 two.
When is the worst time of year for roof damage in Oxnard?
Severe-weather reports in the Oxnard-Thousand Oaks-Ventura, CA statistical area cluster in February, October, January, 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 CA?
California requires a Contractors State License Board licence for any job where labour and materials combined reach $1,000 or more, a threshold raised from $500 by Assembly Bill 2622 on 1 January 2025. The exemption never covers a reroof, because the Board treats any work that needs a permit as requiring a licence whatever its value. Roofing is the C-39 classification; a B General Building licence can also cover it. A C-39 qualifier must document at least four years of journey-level experience and pass both a trade examination and a law and business examination. Every active licence carries a $25,000 contractor’s bond, and C-39 roofing licensees must carry workers’ compensation whether or not they have employees: roofing is one of the few classifications that cannot file the no-employee exemption.
What should I check before hiring a roofer in Oxnard?
The CSLB record also shows complaint and disciplinary history, including citations and accusations. Treat any status other than Active as disqualifying.
Is Oxnard a hard market to find a good roofer in?
This page ranks two contractors. That is not a gap in the research; it is the finding, and it is the starkest one in this programme. Ventura County has 835,000 residents and, within forty miles of Oxnard, exactly two manufacturer-certified roofing contractors that carry enough public reviews to assess. We checked every city in the county: Ventura, Camarillo, Thousand Oaks, Simi Valley, Moorpark, Ojai, Fillmore, Santa Paula, Port Hueneme, Newbury Park, Westlake Village and Agoura Hills. The certification registry fills the rest of its Ventura County results with San Fernando Valley firms in Tarzana, Reseda, Northridge, Woodland Hills and Burbank, 45 to 55 miles away in Los Angeles County. Those companies are real, many are excellent, and they will absolutely take work in Ventura County. We exclude them because they are ranked on the Los Angeles page, where they are actually based, and because a roofer 50 miles away is a different proposition when a warranty callback is needed in year six. If neither contractor below suits you, widening the search into the west Valley is a reasonable next step, but do it knowingly rather than because a directory quietly counted those firms as local. California’s C-39 licence is the compensating check here: four years of journey-level experience, two exams, and a CSLB record that publishes full complaint and disciplinary history.
Is wind or hail the bigger risk to a roof in Oxnard?
Wind, by a wide margin. The Oxnard-Thousand Oaks-Ventura, CA statistical area logged 14 severe thunderstorm and high wind reports against 0 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 Los Angeles, CA, about 56 miles from Oxnard
- Best roofers in Bakersfield, CA, about 80 miles from Oxnard
- Best roofers in Santa Maria, CA, about 87 miles from Oxnard
- Best roofers in Riverside, CA, about 105 miles from Oxnard
- Best roofers in San Luis Obispo, CA, another CA metro on the same formula
- Best roofers in Visalia, CA, another CA metro on the same formula
- Best roofers in Boise, ID, a metro of comparable size
- Best roofers in Dayton, OH, a metro of comparable size
- Best roofers in San Diego, CA, also scored, about 153 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 Oxnard, CA: 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.