Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roofing Company Across Petaluma
Roofing work in Petaluma runs about $8,500 to $18,000 for a full replacement on a typical single-family home, with repairs ranging $350 to $1,200 depending on what failed. Most jobs in town are scheduled within one to two weeks once the written estimate is signed. If you’re dealing with a leak after one of our winter atmospheric river events, call (361) 320-9467 and a live person answers, day or night.
We know Petaluma’s houses because we’re on them every week. Downtown Victorians with original redwood gutters built into the roofline. Cherry Valley ranchers with 15-year-old builder shingles giving up early. McNear homes where fog off the Petaluma River keeps north-facing slopes damp nine months a year. The Roofing Company team at Brennan Roofing works to one standard: a written price in your hand before a single shingle comes off, background-checked uniformed technicians on the job, and a full-year written guarantee on every repair and installation.
Why Brennan Roofing Is Petaluma’s Preferred Roofing Company
Travis Oakley runs our Bay Area crews with one rule that never bends: the homeowner gets the price on paper before any work starts. No door-knocking surprises. No “we found decking rot” change orders that triple the bill. The number you sign is the number you pay, unless you approve a written addendum first.
Petaluma homeowners call us because the accountability is specific. Our technicians arrive in uniform, background-checked, and they tell you their name before they touch a ladder. They lay tarps, they magnet-sweep for nails twice, and they leave the site the way they found it – minus the roof problem. Every job carries the 365-Day Done Right Promise: if a repair or install fails within one year, we come back and fix it free. In writing. That’s the Garrison Standard, and it applies to every home in Petaluma the same way.
We stock common GAF and CertainTeed components locally so a simple repair in Petaluma doesn’t wait on a warehouse in Sacramento. Scheduling for Petaluma addresses runs Monday through Saturday, with crews dispatched from our San Francisco Bay Area office.
Roofing Contractor in Petaluma
A roofing contractor in Petaluma handles the full scope of keeping a roof watertight and code-compliant: tear-off, decking inspection and replacement, underlayment, flashing at every penetration and valley, drip edge, and the finished shingle or standing seam system. In Petaluma, the all-electric building code adds a layer most cities don’t carry: your roof has to be framed for solar loads and vented for heat-pump HVAC, not a gas furnace flue. A typical full roof replacement in Petaluma runs $8,500 to $18,000 depending on square footage, pitch, and the condition of the decking beneath.
Repair and Flashing Work
Most Petaluma service calls start as a small stain on a ceiling or a missing shingle after a wind event. We find the actual point of water entry – usually flashing at a chimney, a skylight curb, or a pipe boot – and we fix that, not just the visible damage. A standard flashing repair runs $350 to $800. Replacing a section of rotted decking adds $150 to $400 per sheet, and you’ll see that on the written estimate before we cut anything.
Full Re-Roofs on Older Homes
Downtown Petaluma’s Victorians and Craftsman bungalows often sit on original skip sheathing – spaced boards, not solid plywood. That’s not automatically a problem, but it changes how the new roof gets fastened and what underlayment we use. We inspect the existing framing before we quote so there’s no surprise on install day. Re-roofing a 1,200-square-foot bungalow here typically lands between $10,000 and $14,000 when the decking is sound.
Commercial Roofing in Petaluma
Commercial roofing in Petaluma covers low-slope and flat systems on warehouses, office parks, retail strips, and the light industrial buildings along Petaluma Boulevard South and the rail corridor. These roofs fail differently than residential slopes: ponding water around clogged drains, failed lap seams on older TPO or modified bitumen, and flashing separation at HVAC curbs. A commercial flat roof replacement in Petaluma runs $12 to $18 per square foot depending on insulation depth and the existing system, which puts most small buildings in the $15,000 to $45,000 range.
Flat and Low-Slope Systems
We install and repair TPO, PVC, and modified bitumen systems with the same written-price rule we use on houses. Petaluma’s morning marine layer means flat roofs stay damp longer than pitched ones, so we recommend regular drain inspection and semi-annual debris clearing. A basic drain and seam repair runs $500 to $1,200 before any membrane work.
Preventive Maintenance Programs
For Petaluma building owners, we offer a scheduled maintenance program: two visits a year, documented with photos, sealed seams as needed, and a written report. It’s the cheapest insurance for a roof that could last 20 years but usually dies early from neglect. Pricing starts at $900 a year for small single-story buildings.
Trusted Brands We Service in Petaluma
We install and repair GAF, CertainTeed, and Owens Corning systems, and our crews are trained on each manufacturer’s installation requirements so the material warranty stays valid. We keep common GAF Timberline and CertainTeed Landmark components in local stock for Petaluma jobs, which means a simple repair doesn’t sit for a week waiting on freight. If you have a preference or an existing system we need to match, tell us on the call and we’ll quote it that way from the start.
Common Roofing Problems We See in Petaluma Homes
- Moss and algae on north-facing slopes. Fog off the Petaluma River keeps those slopes shaded and damp most of the year. Moss lifts shingle edges and traps water, which is why we recommend a moss-resistant shingle or a zinc strip on any Petaluma roof with a north exposure.
- Builder-grade flashing on newer developments. Homes in subdivisions off Rainier Avenue and Sonoma Mountain Parkway were built fast. We regularly find thin, poorly lapped flashing at chimney bases and valley junctions that leaks within 10 years. Replacing it properly is usually a $600 to $1,400 fix.
- Original redwood gutters tied into the roof structure. In the historic downtown, original redwood gutters are often built into the eave framing. When we re-roof, we have to fabricate custom gutter liners and flashing to match – a detail that requires an actual carpenter’s eye, not just a shingle gun.
- Solar conduit missing on all-electric new builds. Homes built to Petaluma’s 2019 code need roof penetrations for solar and heat-pump lines. If the original roofer didn’t plan for them, adding them later means cutting into a finished roof. On any re-roof, we ask about solar and HVAC plans before we quote.
Pricing for Roofing Company in Petaluma, CA
Here’s what Petaluma homeowners can expect on paper, before any work starts. A full tear-off and re-roof on a standard 1,600 to 2,200-square-foot home: $10,500 to $16,000. Repair work: $350 to $1,200 for most flashing, valley, and shingle issues. A roof inspection with a written report and photos: $250 to $400, credited back to your job if we do the work within 30 days. The variables are real – steep pitches, rotted decking, skylights, tile removal – and every one of them shows up as a line item on the written estimate before you sign. Call (361) 320-9467 to schedule a free estimate.
We Also Serve Cities Near Petaluma
Brennan Roofing serves Petaluma and the surrounding Sonoma and Marin county communities, including Cotati, Rohnert Park, Novato, and Boyes Hot Springs. Same written-price rule, same 365-Day Done Right Promise, same background-checked crews. Call (361) 320-9467 whether your roof is in downtown Petaluma or 15 minutes down 101.
Serving Petaluma, CA - Our Local Coverage Area
We’re based in the Petaluma 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 Petaluma
It’s a known failure pattern on Petaluma’s builder-grade homes: the original architectural shingles go in with minimal underlayment and start granule-shedding within 5 to 8 years. That’s usually a workmanship issue, not a material defect, which means the shingle manufacturer won’t pay. If you’re still inside the builder’s structural warranty window, a written inspection report documenting the visible defects is the first step. Call (361) 320-9467 and we’ll document what’s happening before you approach the builder.
Yes, both can be affected, and we handle it in writing before work starts. On newer Petaluma developments, HOAs often require an architectural submittal for any visible roof change – color, material, even underlayment type. And if your home is inside a builder warranty period, stripping the roof without documenting pre-existing defects can shift liability to you. We photograph everything before tear-off and provide a written condition report so your warranty position is protected.
Petaluma sits in the river valley, where morning fog and marine layer hold moisture on roofs far longer than on hillside homes to the east. North-facing slopes, shaded eaves, and slow-drying conditions create the perfect environment for moss on composition shingles. The fix is a moss-resistant shingle, a zinc or copper strip along the ridge, or a periodic soft-wash treatment. We quote all three options on Petaluma jobs.
A proper Petaluma re-roof quote should include line items for decking inspection and replacement, ice and water shield in valleys, flashing at all penetrations, drip edge, ridge vent or box venting, and – if the home is an all-electric build – conduit pass-throughs and decking reinforcement for future solar. If a quote doesn’t mention solar-ready decking on a post-2019 Petaluma home, it’s incomplete. We write it all down before you sign, and the number doesn’t move at the door.
Yes. Our crews in Petaluma handle steep-slope residential work – Victorians, ranchers, new builds – and low-slope commercial systems on warehouses, offices, and retail buildings. Same written price, same 365-Day Done Right Promise, same live-person phone answer. Call (361) 320-9467 and tell us what you’re looking at; we’ll tell you straight what it takes and what it costs.
Written by Travis Oakley, Owner at Brennan Roofing, serving Petaluma and the wider Bay Area under the Garrison Standard.