Short answer: As of September 2026, the five highest-scoring roofing contractors in the Vallejo, CA metro on The Roofing Brief Contractor Score are NC Roofing Solution Inc (91.2), Acker Roofing Inc. (76.1), Bay Valley Roofing (76.0), Ken Cooper Roofing & Gutter Systems, Inc. (73.5), Northern Pacific Roofing Inc (71.9). Each is certified by a manufacturer whose register we checked by hand, each rating has been tested against a source outside that register, and nobody bought a place on this page.
The Roofing Brief scored 8 certified roofing contractors serving the Vallejo metro on a published, reproducible formula, then researched each of the top five individually to confirm its record. Solano County recorded no hail, no severe thunderstorm wind, no tornadoes and no severe-weather property damage in the entire ten-year NOAA record. Not a low figure. Zero. Only one other metro in this programme, Seattle, returns a completely empty storm record, and it means everything a roofing salesperson might tell you about storm damage in Vallejo is, on the federal record, unsupported. What actually governs a roof here is California’s energy code and the wildfire risk on the county’s dry eastern and northern edges, and what governs the contractor is the CSLB licence, which publishes complaint history that almost no other state register does.
Why a Vallejo roof fails slowly rather than suddenly
There is no storm-damage market in Solano County. That single fact is the most useful thing on this page, because it removes the pretext that drives most predatory roofing sales in the rest of the country. If someone knocks on your door in Vallejo, Fairfield or Benicia offering a free inspection after a storm, there was no storm. Ten years of National Weather Service records for this county contain no severe weather event of any kind.
Title 24 Part 6 decides what you can install. Solano County sits in California Climate Zone 12, and a residential re-roof must meet minimum aged solar reflectance and thermal emittance values, or an equivalent Solar Reflectance Index, before the building department will close the permit. Ask the contractor to name the exact product and confirm it is CRRC-rated for Zone 12, because a non-compliant product means an open permit and an unfinished job.
Wildfire is the exception to the quiet weather. Parts of eastern and northern Solano County fall within State Responsibility Areas or locally designated high fire hazard zones, where Chapter 7A of the California Building Code applies and requires a Class A fire-rated roof assembly with ember-resistant venting and non-combustible eave detailing. That is a different specification from a standard re-roof and it is address-specific. Ask which zone you are in.
California licenses roofing as Class C-39 through the Contractors State License Board, requiring four years of journey-level experience and two examinations, and the CSLB record publishes complaint and disciplinary history alongside licence status. Note also that this metro’s certified pool leans across the water: four of the five below are in Contra Costa or Marin County, 16 to 19 miles away, because Solano’s own certified capacity is thin. Weight proximity accordingly.
The 5 best roofers in Vallejo, CA
Scored 2026-09-24. The metro mean rating used as the Bayesian prior for Vallejo is 4.875, across a pool of 8 certified contractors.
| Rank | Company | TRB Score | Certification | Rating (reviews) | Adjusted | In business since | Based in |
|---|---|---|---|---|---|---|---|
| 1 | NC Roofing Solution Inc | 91.2 | President’s Club | 4.9 (249) | 4.896 | not published | Walnut Creek, CA |
| 2 | Acker Roofing Inc. | 76.1 | Master Elite | 4.8 (145) | 4.819 | not published | Concord, CA |
| 3 | Bay Valley Roofing | 76.0 | Master Elite | 4.8 (138) | 4.82 | 1989 | Concord, CA |
| 4 | Ken Cooper Roofing & Gutter Systems, Inc. | 73.5 | Master Elite | 4.8 (34) | 4.845 | 1973 | San Rafael, CA |
| 5 | Northern Pacific Roofing Inc | 71.9 | Master Elite | 4.7 (34) | 4.804 | not published | San Rafael, CA |
1. NC Roofing Solution Inc — TRB Score 91.2
NC Roofing Solution Inc is based in Walnut Creek, CA, and holds President’s Club standing on the GAF certification registry.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 35 | 35 |
| Adjusted rating | 35.8 | 40 |
| Review corpus depth | 15.0 | 15 |
| Metro proximity | 5.3 | 10 |
| Total | 91.2 | 100 |
Independently corroborated:
- President’s Club certified contractor listed in Walnut Creek. GAF
What they actually do. Residential and commercial roofing across Contra Costa and Solano counties.
Why it ranks here. 249 registry reviews at 4.9 with President’s Club certification, the only top-tier contractor serving this metro. Its 91.2 leads second place by 15.1 points, the widest gap in this batch.
Best fit for: Benicia and southern Solano County homeowners.
What we would want clarified. No BBB profile or rating was locatable, and 19 miles from the metro centre in Contra Costa County. Check the CSLB record, which publishes 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 (925) 477-2993, 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. Acker Roofing Inc. — TRB Score 76.1
Acker Roofing Inc. is based in Concord, CA, BBB a+ rating, and holds Master Elite standing on the GAF certification registry.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 24 | 35 |
| Adjusted rating | 32.8 | 40 |
| Review corpus depth | 13.5 | 15 |
| Metro proximity | 5.8 | 10 |
| Total | 76.1 | 100 |
Independently corroborated:
- A+ rated, with CSLB licence 993338 on the BBB record expiring 29 February 2028. BBB
- Contractor and permit record on BuildZoom. BuildZoom
- Residential and commercial roofing across Contra Costa County. Company
What they actually do. Residential and commercial roofing across Contra Costa and Solano counties.
Why it ranks here. 145 registry reviews at 4.8 with an A+ rating and a CSLB licence number and expiry both verifiable on the public record.
Best fit for: Benicia and south-county homeowners, and commercial buildings.
What we would want clarified. Seventeen miles from the metro centre, in Contra Costa 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 (925) 891-3331, 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. Bay Valley Roofing — TRB Score 76.0
Bay Valley Roofing is based in Concord, CA, in business since 1989, BBB accredited since 31 May 2011, A+ rating, and holds Master Elite standing on the GAF certification registry.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 24 | 35 |
| Adjusted rating | 32.8 | 40 |
| Review corpus depth | 13.4 | 15 |
| Metro proximity | 5.8 | 10 |
| Total | 76.0 | 100 |
Independently corroborated:
- A+ rated and accredited since 31 May 2011, a 15-year record, in business since 15 September 1989. BBB
- Listed among Diamond Certified roofing contractors for Concord. Diamond Certified
- Operates as Bay Valley Roofing & Solar, with an independent installer profile. Solar
What they actually do. Roofing and solar across the East Bay and Solano County.
Why it ranks here. 138 registry reviews at 4.8 with fifteen years of unbroken A+ accreditation and 36 years trading. Roof and solar on one licence avoids the warranty argument that follows when a separate solar installer penetrates a new roof.
Best fit for: Roof-and-solar projects, and southern Solano County homeowners.
What we would want clarified. Seventeen miles from the metro centre. 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 (925) 705-7889, 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. Ken Cooper Roofing & Gutter Systems, Inc. — TRB Score 73.5
Ken Cooper Roofing & Gutter Systems, Inc. is based in San Rafael, CA, in business since 1973, Not accredited; BBB file opened 13 September 2016, and holds Master Elite standing on the GAF certification registry.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 24 | 35 |
| Adjusted rating | 33.8 | 40 |
| Review corpus depth | 9.7 | 15 |
| Metro proximity | 6.0 | 10 |
| Total | 73.5 | 100 |
Independently corroborated:
- Not BBB accredited; BBB file opened 13 September 2016, 43 years in business. BBB
- Family owned and operated across Marin County and the North Bay since 1973. Company
- Contractor and permit record on BuildZoom. BuildZoom
What they actually do. Roofing and gutter systems across Marin County and the North Bay.
Why it ranks here. Trading since 1973, 53 years, which is the longest record of any contractor serving this metro by two decades. Family owned across that whole period.
Best fit for: Vallejo and western metro homeowners, and anyone weighting a five-decade record.
What we would want clarified. Thirty-four registry reviews is a thin sample for a company this old, and it is not BBB accredited. Sixteen miles from the metro centre, across the strait in Marin 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 (415) 446-5500, 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. Northern Pacific Roofing Inc — TRB Score 71.9
Northern Pacific Roofing Inc is based in San Rafael, CA, and holds Master Elite standing on the GAF certification registry.
| Score component | Points | Max |
|---|---|---|
| Certification tier | 24 | 35 |
| Adjusted rating | 32.2 | 40 |
| Review corpus depth | 9.7 | 15 |
| Metro proximity | 6.0 | 10 |
| Total | 71.9 | 100 |
Independently corroborated:
- Master Elite certified contractor listed in San Rafael. GAF
What they actually do. Residential roofing across Marin County and the North Bay.
Why it ranks here. Master Elite certification with a 4.7 rating, covering the Marin side of the metro.
Best fit for: Western metro homeowners toward Marin.
What we would want clarified. Thirty-four registry reviews and no locatable BBB record, so there is no complaint history to read. Sixteen miles from the metro centre. Verify the CSLB licence and its complaint record directly before signing. 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 (415) 456-3482, 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.
0 severe weather reports in a decade, and why that matters in Vallejo
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 Vallejo, 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, 0 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.
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 Vallejo. Weight your decision toward wind rating, ventilation and flashing detail rather than paying extra for impact-rated shingles.
What a Vallejo homeowner should ask for in writing
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.
The shape of the Vallejo contractor market
8 certified roofing contractors serve the principal cities of the Vallejo, CA statistical area, of which 1 hold the top President’s Club tier. The pool carries 675 customer reviews between them at a mean rating of 4.875. The statistical area had a 2024 population of 455,101, a change of 0.34% against the 2020 census base, per the U.S. Census Bureau Vintage 2024 estimates.
How these Vallejo rankings were produced
Every contractor in the Vallejo, 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 8 certified contractors, of whom 1 hold President’s Club standing and 4 Master Elite, against a metro mean rating of 4.875. The top five were then researched individually against Better Business Bureau records, state licence registers and manufacturer directories. Anything unflattering that research surfaced appears above alongside the rest, and no company bought its position.
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: 2026-09-24. Corrections go to the editor and are actioned on verification.
What Vallejo homeowners want to know
Who is the best roofer in Vallejo, CA?
NC Roofing Solution Inc of Walnut Creek, CA scores highest in the Vallejo metro on The Roofing Brief Contractor Score, at 91.2 out of 100 as of September 2026. It holds President’s Club certification with a 4.9 rating across 249 reviews. Highest-scoring is not the same as best fit for your specific job, and the four companies behind it score within 19.3 points.
How many certified roofing contractors serve Vallejo?
8 contractors on the GAF certification registry serve the principal cities of the Vallejo, CA statistical area as of September 2026, of which 1 hold President’s Club status.
How much damaging hail does Vallejo get?
The Vallejo, 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 five.
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 Vallejo?
The CSLB record also shows complaint and disciplinary history, including citations and accusations. Treat any status other than Active as disqualifying.
Is Vallejo a hard market to find a good roofer in?
Solano County recorded no hail, no severe thunderstorm wind, no tornadoes and no severe-weather property damage in the entire ten-year NOAA record. Not a low figure. Zero. Only one other metro in this programme, Seattle, returns a completely empty storm record, and it means everything a roofing salesperson might tell you about storm damage in Vallejo is, on the federal record, unsupported. What actually governs a roof here is California’s energy code and the wildfire risk on the county’s dry eastern and northern edges, and what governs the contractor is the CSLB licence, which publishes complaint history that almost no other state register does.
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 San Francisco, CA, about 24 miles from Vallejo
- Best roofers in Santa Rosa, CA, about 34 miles from Vallejo
- Best roofers in Stockton, CA, about 53 miles from Vallejo
- Best roofers in Sacramento, CA, another CA metro on the same formula
- Best roofers in San Jose, CA, another CA metro on the same formula
- Best roofers in Corpus Christi, TX, a metro of comparable size
- Best roofers in Waterbury, CT, a metro of comparable size
- Best roofers in Chico, CA, also scored, about 117 miles away
- Best roofers in Honolulu, HI, also scored, about 2409 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 Vallejo, 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.