Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterRoofers in Windsor, CA
Roofing in Windsor, CA runs $8,500 – $18,000 for full replacement on typical tract homes, with repairs starting around $450 – $1,200. Windsor’s position in Sonoma County’s Wildland-Urban Interface means most re-roofs now require Class A fire-rated, ember-resistant assemblies to satisfy insurers and the local fire marshal. We’re Mercer Roofing, and we handle the compliance paperwork as part of every job. Call (743) 200-8347 to schedule your free estimate.
Why Windsor Homes Are Different
Windsor incorporated in 1992 and grew fast through planned subdivisions built mostly between the late 1980s and mid-2000s. That means the bulk of local housing stock is 25 – 40 years old, with original asphalt composition shingles hitting or exceeding their design lifespan all at once. We see this pattern concentrated in neighborhoods like the original Windsor Creek area and the Foothill Ranch developments off Mark West Springs Road.
The 2019 Kincade Fire changed everything here. Mandatory evacuations and the subsequent wave of insurance non-renewals mean Windsor homeowners now face a three-way squeeze: insurers demanding documented Class A fire ratings, Sonoma County building code requiring ember-resistant construction in the Wildland-Urban Interface, and the local fire marshal enforcing defensible-space rules that extend to roofing materials. We routinely provide written material certifications and permit pull cards directly to homeowners’ insurance agents at project closeout, a step almost unheard of in neighboring towns.
Windsor’s Mediterranean climate adds its own wear pattern. Roughly 30 – 35 inches of annual rainfall hits between November and March, followed by dry, hot summers that bake shingles and accelerate thermal cracking. Fall Diablo winds funnel through the Petaluma Gap, creating uplift stress along ridge caps and driving rain behind poorly sealed sidewall flashings. These aren’t theoretical problems; we replace wind-lifted ridge cap sections every autumn after the first big wind event.
Our Main Windsor Services
Most Windsor homeowners call us for one of three needs: stopping an active leak before winter rains worsen the damage, replacing an aging roof under insurance pressure, or navigating the full installation process with compliance documentation in hand.
Roof Repair in Windsor
Windsor repairs often trace to wind-driven rain intrusion at ridge caps and sidewall flashings, especially after fall Diablo wind events. We also see accelerated shingle cracking from thermal cycling on south-facing slopes in neighborhoods like Lakewood Hills. Every repair includes a written guarantee and our 365-Day Done Right Promise; if the fix fails, we come back free. Roof Repair in Windsor
Roofing Company in Windsor
As a full-service roofing company in Windsor, we manage everything from emergency tarping after wind events to complete re-roofs with Class A fire-rated assemblies. We pull all permits through Sonoma County and coordinate inspections, including the final sign-off that insurers now require. Every technician is background-checked, identity-verified, and arrives with a photo ID badge, with their name and photo sent to you before they arrive. Roofing Company in Windsor
Roof Installation in Windsor
New roof installation in Windsor now means navigating fire marshal requirements and insurer documentation from day one. We specify Class A rated shingles from manufacturers like GAF and Atlas, install ember-resistant underlayment per county code, and provide the material certification packet your insurance agent needs. The written price is fixed before work starts, no change orders. Roof Installation in Windsor
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Windsor
We install and repair using GAF, Atlas, Tamko, and Boral shingles, with CertainTeed and Owens Corning options available for specific HOA requirements. Common repair components, ridge caps, and underlayment are stocked locally for Windsor jobs, so most repairs don’t wait on material delivery. See our brands for full specifications.
Pricing for Roofers in Windsor, CA
| Service | Typical range in Windsor |
|---|---|
| Minor leak repair (flashing, single shingle patch) | $450 – $850 |
| Moderate repair (ridge cap replacement, valley repair) | $850 – $1,600 |
| Major repair (decking section, multiple penetrations) | $1,600 – $3,200 |
| Chimney flashing rebuild | $1,200 – $2,400 |
| Skylight replacement with flashing kit | $800 – $1,500 |
| Full shingle replacement, 1,500 sq ft tract home | $12,000 – $16,500 |
| Full shingle replacement, 2,500 sq ft home | $16,500 – $22,000 |
| Class A fire-rated upgrade (materials + labor adder) | $1,800 – $3,500 |
| Ember-resistant underlayment (full replacement) | $2,200 – $4,000 |
| Gutter replacement (aluminum, linear foot) | $8 – $14 |
Three factors push Windsor prices toward the higher end: Class A fire-rated material upgrades now required for most insurance compliance, the additional inspection and documentation steps for Wildland-Urban Interface permits, and access challenges on hillside lots in areas like the Foothill Ranch perimeter. Every price we quote is written and fixed before work starts, no exceptions.
Neighborhoods We Serve in Windsor
We work across all of Windsor’s residential areas, from the original 1990s subdivisions to newer infill near the Town Green. Most Windsor addresses fall within our standard scheduling zone with crews dispatched from our San Francisco Bay Area coordination office.
- Windsor Creek
- Foothill Ranch
- Lakewood Hills
- Brooks Village
- Starr Ridge
Service Area – Cities Near Windsor
We serve Windsor homeowners directly and regularly travel to neighboring Sonoma County communities for larger projects and ongoing maintenance. Our service area includes Healdsburg, CA to the north, Santa Rosa, CA to the south, Sebastopol, CA to the west, and Calistoga, CA in Napa County to the east. Each location receives the same Threshold Verified standard: background-checked, photo-badged technicians with written pricing on every job.
Serving Windsor, CA - Our Local Coverage Area
We’re based in the Windsor area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Roofers in Windsor
Most Windsor homeowners now need documented Class A fire-rated roofing for renewal or new coverage after the 2019 Kincade Fire. We provide written material certifications and permit pull cards directly to your insurance agent as part of project closeout. Call (743) 200-8347 to discuss your specific insurer’s requirements during your free estimate.
Yes. We pull all permits through Sonoma County and schedule required inspections, including the final sign-off that documents fire marshal compliance. The permit cost is included in your written price, not added later. Call (743) 200-8347 and we’ll confirm the permit timeline for your project.
We answer calls with a live person 24/7, and we prioritize active leaks during the November through March rainy season. Most Windsor addresses are within our standard dispatch zone from our Bay Area coordination office. For emergency tarping or active leak response, call (743) 200-8347, we’ll schedule your free estimate and assess urgency on the call.
Ready to get a written price before any work starts? Call Mercer Roofing at (743) 200-8347 to schedule your free estimate in Windsor. Every job includes our 365-Day Done Right Promise, a written guarantee on every repair, and technicians who send their name and photo before they arrive, badge in with photo ID at your door, and never start work without your approved written price in hand.
What happens when you call
- 1A real person answersNo phone trees - talk to a local roofing pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Windsor Customers Say
"Chimney flashing was the culprit for years of dark stains on the ceiling. Fixed it in one visit and no more stains."
- Ian O."Roofer showed his ID and gave me the crew lead's name before anyone climbed the ladder. Replaced a patch of missing shingles and resealed two vent boots. Written estimate matched the final bill."
- Brian J."Full tear-off and new shingles on our two-story. They covered the landscaping with tarps and ran a magnet over the yard afterward. Didn't find a single nail."
- Karen V.