Cornerstone Roofing Inc
Roofing contractor working in Marin County. Licensed since 2008.
- License active
- Workers' comp on file
7 roofing jobs on Marin County permits, 2021 to 2025. 49th most roofing permits of 123 contractors in Marin County.
What the public records show
From the state's license records and the city's permits, one question at a time.
| Question | Records show | Mark |
|---|---|---|
| Licensed? | License 909400, active in the state's records on Sep 23, 2026RoofingNo disciplinary case on the state's file. | Checks out |
| Workers' comp? | Workers' comp policy on file with the stateThis covers their crew if someone is hurt. It is not insurance for your home. | On file |
| In business? | Licensed since 2008 | |
| Jobs on record | 7 roofing jobs on Marin County permits, 2021 to 2025Every permit we have for them is roofing.49th most roofing permits of 123 licensed contractors in Marin County. That counts jobs, not quality.Our Marin County permit records cover October 2021 to October 2026.Of their 7 roofing permits, 2 mention shingles, 5 mention a flat or low-slope roof. |
Records: the state license board and City of Marin County permits.
Cost and timing
All roofing jobs in Marin County: $14,000 to $29,000
Half of 3,054 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Roof replacements in Marin County: $14,000 to $29,000 (3,041 permits)
- Shingle roofs in Marin County: $15,000 to $28,000 (1,711 permits)
- Tile roofs in Marin County: $19,000 to $41,000 (23 permits)
- Flat and low-slope roofs in Marin County: $14,000 to $29,000 (489 permits)
How to read this range
Contractors write a job value on the permit form, and the city uses it to set the permit fee. It is not the contract price, and it is often lower than what you pay. A quarter of the permits list less than this range, and a quarter list more. Use it to see if a quote is in the normal range.
Permit value (not a price)
Their typical permit lists $34,899 (half list more, half less)
That is the figure written on the permit form, which can be far from what you pay. What roofing jobs cost in Marin County.
Get 2 or 3 written quotes.
Track record
Jobs per quarter
Where they work most
- 949044 jobs
- 949561 job
- 949471 job
- 949291 job
Latest jobs
Permit values are what the contractor wrote on the permit form, not what the owner paid.
| Date | Work | ZIP | On the permit form |
|---|---|---|---|
| Apr 1, 2025 | Reroof, 36 squares (3,600 sq ft)Tear off 36 squares of built up roof | 94904 | $70,441 |
| Oct 31, 2024 | ReroofTear off all existing roofing materials and re roof with a class A comp shingle roof system and re… | 94904 | $95,559 |
| Dec 8, 2023 | Reroof, 44 squares (4,400 sq ft)Tear off 44 squares of tar and gravel roof | 94904 | $48,878 |
| Aug 2, 2023 | Reroof, 25 squares (2,500 sq ft)Tear off and reroof 25 Squares with Class a fire rated Polystick XFR underlayment and a Taylor… | 94956 | $34,899 |
| Jul 4, 2023 | Reroof, 35 squares (3,500 sq ft)Tear off and reroof 35 squares with Tiger paw underlayment and class a rated GAF HDZ lifetime… | 94947 | $20,937 |
| Oct 25, 2021 | ReroofRemove and dispose of existing roof -Supply and install TPO -Self Cert -Residential -Install Class… | 94904 | $20,000 |
| Oct 8, 2021 | ReroofTear off and dispose off existing roof -Supply and install TPO -Install class A roofing… | 94929 | $14,423 |
What to ask before you hire
About Cornerstone Roofing Inc
- Ask what the warranty covers and for how long, in writing.
Worth asking any roofing contractor
- Can you show me proof of liability insurance and your bond?
- Will you tear off the old roof or lay the new one over it?
- What do you charge to replace rotted roof boards, per sheet, if you find any?
- Who pulls the permit, and who meets the inspector?
Get a quote from Cornerstone Roofing Inc
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Your job room keeps the request, your photos and every reply in one place, with an assistant that checks prices against city permits. Keep its link: it is the key to your job.
Open your job roomMore roofing contractors near 94904 and 94956
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- Able Roofing Company
- Ava Inc
- Heritage Quality Roofing Inc
- Metal Roof Systems Inc
See all 123 roofing contractors in Marin County, ranked by jobs
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