Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Windsor
Roofing work in Windsor means dealing with two things at once: 1980s and 1990s tract homes whose original tile and shingle roofs are failing at the same time, and a fire-era building code that now expects a lot more from the roof assembly than those homes were ever built to. If you’re searching for a Roofing Company that understands both, you’re in the right place. Our crews work throughout Windsor weekly, from Windsorland to Brooks Creek, and we know what those tear-offs turn up before we lift the first tile. Call (361) 320-9467 for a straight answer and a written price.
Why Brennan Roofing Is Windsor’s Preferred Roofing Company Company
Travis Oakley runs our Windsor work the same way on every job: inspection first, written price before any work starts, and a technician in uniform who shows up inside the promised window. That matters in Windsor, where a large share of the calls we take are from homeowners who already got one quote, watched it move at the door, and decided they’d rather work with someone who puts the number on paper and stands behind it.
We work under The Garrison Standard. That means every repair and replacement carries a 365-Day Done Right Promise in writing. If a repair fails within the full year, we come back at no charge. No fine print, no phone tag. The same standard applies whether we’re replacing decking in Windsorland or doing a full tear-off east of the Green. Residents here tell us the same thing: they want to know who’s on their roof, what it costs, and what happens if something goes wrong. We answer those three questions before we start.
Our Windsor customers also deal with something most roofers don’t talk about: the original underlayment under those tile roofs is often gone. We’ll get into that more below, but it’s the main reason our quotes include an inspection allowance, not just a per-square number pulled from a bid sheet.
Roof Coating in Windsor
Roof Coating in Windsor is a realistic option for flat and low-slope roof sections on commercial buildings, patio covers, and some ranch-style additions, but it’s not a substitute for replacing a failing pitched roof. The coating we apply is a fluid-applied elastomeric membrane: it seals hairline cracks, reflects UV, and buys years of service life on a roof that’s still structurally sound. In Windsor’s dry summers, a reflective coating also drops the surface temperature enough to matter on an unconditioned workshop or garage.
When Coating Makes Sense
If the decking is solid, the seams are intact, and the existing membrane isn’t blistered or waterlogged, coating is a cost-effective choice. We inspect the roof before we quote anything. In the Brooks Creek area, where morning fog off the Russian River keeps low-slope sections damp, we check for trapped moisture first. Coating over wet insulation is the fastest way to throw money away.
What Coating Costs in Windsor
Expect $2.50 to $4.50 per square foot for a two-coat elastomeric system on a clean, prepared roof in Windsor. A typical 1,200-square-foot flat section runs $3,000 to $5,400. If the existing roof needs seam repairs or a power wash first, that’s additional, and we’ll put the full number in writing before we begin.
Free Roof Estimate in Windsor
A Free Roof Estimate in Windsor should tell you more than a square footage price. Ours starts with an attic-side inspection where access exists, then a full roof walk, then a written quote that separates the base scope from the allowance items. That distinction matters here, because Windsor’s 1980s and 1990s tract homes are at the age where original felt underlayment has failed and decking is starting to delaminate. A roofer who quotes a tile swap without inspecting the decking is guessing, and a homeowner who accepts that guess is the one who pays for it.
What’s In the Written Price
The quote lists the material, the install pattern, the underlayment, the drip edge, the flashing, the permit line if one’s required, and an allowance for decking repair per square foot. If we tear off and find decking damage, we stop and show you what we found. The change order is approved in writing before any new material is installed. No work starts until you have that number.
How Long the Estimate Takes
We schedule estimates in Windsor within a few days, and the visit itself takes about an hour for most homes. You’ll have the written quote the same day in most cases. Call (361) 320-9467 and we’ll get you on the schedule.
Trusted Brands We Service in Windsor
Brennan Roofing installs materials from GAF, CertainTeed, and Owens Corning, among others. We stock common components locally for Windsor jobs, which means a missing flashing detail or a short drip edge doesn’t stall the schedule while parts ship from a warehouse. When you’re deciding between brands, we’ll explain the actual differences: wind ratings, fire ratings, weight, and warranty terms. We don’t push one line over another. We push the one that fits your roof and your budget, and we’ve put the research into all three so you don’t have to.
Common Roofing Company Problems We See in Windsor Homes
- Crumbled felt under tile roofs from the 1980s and 1990s. Original 30# felt has a service life of twenty to twenty-five years, and most Windsor tract homes are past that. Removing the tile reveals dust, not a water barrier.
- Delaminated OSB decking around roof penetrations. Skylights, plumbing vents, and attic fans are common leak points. By the time water reaches the ceiling, the decking around the penetration has often been rotting for years.
- Wood shake roofs in Windsorland and Brooks Creek rotted from the underside. The morning fog off the Russian River keeps shake damp from below. A driveway view looks fine. The attic tells a different story.
- Trumpet-vine and moss growth at the north eaves. Windsor’s cool, damp winters encourage organic growth that lifts shingle edges and holds water against the decking. It’s a maintenance item that becomes a leak if ignored.
Pricing for Roofing Company in Windsor, CA
Roof repairs in Windsor run $350 to $1,800 depending on the scope. A full tear-off and composition shingle replacement on a typical 1,800-square-foot tract home runs $15,000 to $22,000. Tile replacement runs higher, often $24,000 to $36,000, because the tile itself is heavy and the underlayment and decking work underneath is usually more extensive than homeowners expect. Flat roof coating, as noted above, runs $2.50 to $4.50 per square foot. Every job starts with a free estimate and a written price. No work begins until you’ve seen that number and approved it. Call (361) 320-9467 to schedule yours.
We Also Serve Cities Near Windsor
Brennan Roofing handles roofing work throughout northern Sonoma County, including Healdsburg, Santa Rosa, Sebastopol, and Calistoga. Scheduling and dispatch are coordinated through our San Francisco Bay Area office, but crews live and work locally in Windsor and the surrounding area. If you’re just outside city limits, call anyway. We’re likely already working near you.
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 Roofing Company in Windsor
You’ll almost certainly find the original 30# felt underlayment either crumbling or fully turned to dust, and there’s a strong chance some of the OSB decking is delaminated where water got through. That’s not a scare tactic. It’s what we see on most Windsor tear-offs from that era, and it’s why our quotes include a per-square-foot decking allowance so you know the number before we start. Call (361) 320-9467 for a written estimate with the allowance spelled out.
Yes, in most cases. Windsor’s current building code applies Class A fire-rated assembly requirements to re-roofing projects throughout the town, not just inside the burn scar. That means the underlayment, the covering, and the edge details all need to meet the current standard. We build that into every Windsor quote from the first estimate, so the permit inspection doesn’t turn into a surprise change order later. The Garrison Standard means the price goes on paper before work begins, and the code upgrades are already in it.
Put the two quotes side by side and look for what’s missing, not what’s lower. Compare the underlayment spec, the decking allowance, the flashing scope, the drip edge, the fastening pattern, and whether a permit is included. A quote missing any of those will move once the roof is opened. We write our Windsor bids with every line item listed separately. That’s the whole point of a written price before any work starts, and it’s what Travis Oakley expects on every job we run.
Replace it. The morning fog off the Russian River rots shake from the underside, so even if the top looks intact, the attic side is often deteriorated to the point where nails no longer hold. Patching individual shakes is a repair that buys you a season, not a solution. You’ll come out ahead with a full tear-off to Class A composition or a standing-seam metal roof. The price difference is real, but so is the fire risk and the leak risk that patching won’t solve. Call (361) 320-9467 and we’ll show you what the attic actually looks like before you decide.
The valley flashing, the drip edge, and the fastening pattern. Atmospheric river rains drive water sideways, and a poorly flashed valley will leak under those conditions even if it survived a normal winter. Fall winds lift shingles and tiles that weren’t fastened to the wind rating for the exposure. We install with a six-nail pattern on composition shingles and we set drip edge on every eave and rake. That’s standard practice on our Windsor jobs, not an upsell. It’s in the written quote from the first estimate.
Schedule Your Roofing Estimate in Windsor
If your Windsor roof is at the age where the original underlayment is failing, the sooner you know what’s under the tile or shingle, the better. We’ll inspect it, write the price, and hand it to you before any work begins. Travis Oakley and the Brennan Roofing team answer the phone live, 24/7. Call (361) 320-9467 to schedule your free estimate in Windsor today.
Written by Travis Oakley, Owner at Brennan Roofing, serving Windsor, CA.






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