Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Inspection Across Sonoma
A roof inspection in Sonoma, CA typically costs between $199 and $495 for a standard visual and structural assessment, and most inspections take 45 to 90 minutes depending on roof complexity and access. If you need it documented for an insurance renewal or a real estate transaction, expect to pay toward the higher end for the written report. Call (361) 320-9467 to schedule yours.
We know Sonoma roofs because we walk them every week. Our Roof Inspection team works from the Plaza core to the hillside estates off Arnold Drive, and we understand what the city’s historic design review board will and won’t allow before you spend a dollar on repairs. Travis Oakley runs our inspection crews the same way on every Sonoma job: documented findings, plain-English explanations, and a written price before any work starts.
Why Brennan Roofing Is Sonoma’s Preferred Roof Inspection Company
Sonoma homeowners hire us because we speak the local roofing language fluently. We know that a 1910s Victorian on East Spain Street gets evaluated differently than a 1970s ranch in the hills above Boyes Hot Springs. Our inspectors document what they see, photograph it, and walk you through it with trade terms translated into plain English. No mystery, no upsell.
Every technician who steps onto a Sonoma roof is background-checked and arrives in uniform. You know exactly who is on your property, which matters when you’re letting someone onto a roof that may hold the only line of defense between your home and the next Diablo wind event. Phones are answered by a live person 24/7. No voicemail. No callback queue. You call, a human picks up.
We operate under The Garrison Standard, which means the same discipline on every inspection: written findings, written price, and a 365-Day Done Right Promise in writing. If a repair we recommend and perform fails within one year, we come back and make it right at no charge. That’s not marketing language. It’s in the contract.
Roof Estimate in Sonoma
A roof estimate in Sonoma starts with a full inspection, because the number you’re given has to reflect what’s actually happening up there. Clay tile slipping on a Spanish Colonial Revival near the Plaza costs more to correct than a missing shingle on a hillside ranch, and the estimate needs to capture that accurately. We put the price on paper before any work begins. It does not move at the door.
What We Look For Before Pricing
Our inspectors check four things on every Sonoma roof before we write a number: fastener condition at the eaves, flashing integrity at valleys and penetrations, underlayment exposure beneath slipped tile or shake, and ember entry points at vents and ridge lines. A roof that looks fine from the curb can have corrosion eating at the clips that hold your tile in place. Finding that early changes the estimate.
Written Price, No Surprises
After the inspection, you get a line-item written estimate that stays the same when we return to do the work. Sonoma homeowners who’ve been burned by door-knocking roofers with a low ballpark number and a higher final invoice understand why this matters. The price goes on paper before work starts. Always.
Free Roof Inspection in Sonoma
A free roof inspection in Sonoma is what we offer when you’re concerned about roof condition but not yet ready to commit to a repair or replacement. You get the same eyes on your roof, the same documentation, and the same written price if work is needed. You pay nothing for the look, and you’ll never owe us for a visit you didn’t ask for.
When a Free Inspection Makes Sense
After the October 2017 fires, many Sonoma insurance carriers began requiring documented roof inspections at renewal, particularly for properties in the wildland-urban interface outside the city core. If you’ve received a non-renewal notice or a request for roof documentation, a free inspection gives you a factual baseline before you talk to your agent. We’ll inspect and tell you honestly whether there’s anything to fix.
Second Opinions, Honestly Given
We also do free inspections for homeowners who’ve been told by another company that they need a full replacement but want a second set of eyes before writing a check. Sometimes that replacement is justified. Sometimes the roof has five years left and a few targeted repairs will get you there. We’ll tell you the truth either way. Our reputation in Sonoma depends on it.
Trusted Brands We Service in Sonoma
We work with materials from GAF, CertainTeed, and Owens Corning, and we stock common components locally to keep turnaround fast for Sonoma homeowners. If a Plaza-area home needs a specific tile profile or a hillside property requires Class A fire-rated composite, we can source it quickly because we know which local suppliers carry what. The brand matters less than the spec. We’ll explain the difference between a standard architectural shingle and a fire-resistant alternative, then let you decide with real numbers in front of you.
Brennan Roofing is an independently owned and operated member of the Garrison Partners family, founded in 2000. That means we answer to our own name in Sonoma, not to a distant corporate office, and we chose to earn our reputation one roof at a time.
Common Roof Inspection Problems We See in Sonoma Homes
- Corroded fasteners at the eaves. Salt-laden winter air off the bay works its way into standard steel clips, especially on Plaza-area Victorians and Spanish Colonials with clay tile or wood shake. When those clips fail, the tile slips and wind-driven rain reaches the decking during Diablo wind events. We specify stainless or hot-dip hardware instead.
- Starter strip and ridge vent loss in hillside zones. Roofs above the valley floor take the brunt of fall offshore winds, which tear loose asphalt shingle starter strips and ridge vent details. A small gap becomes an ember entry point. An insurance carrier will flag it at renewal.
- Historic overlay patches made with inland-spec materials. We regularly see Plaza-overlay roofs patched with standard asphalt or untreated flashing that fails design review or current underlayment code. That forces a re-roof two to three years early. A correct coastal-spec repair from the start would have cost less.
- Trapped moisture at the eave and valley. On older Victorians, original decking often wasn’t ventilated to modern standards. When underlayment fails beneath slipped tile, the decking holds moisture and rot follows. By the time you see the stain on the ceiling, the repair is bigger than it needed to be.
Pricing for Roof Inspection in Sonoma, CA
A standard roof inspection in Sonoma runs $199 to $350 for most single-family homes. If your property requires drone documentation for steep slopes, or if you need a written report suitable for an insurance carrier or a real estate transaction, expect $350 to $495. Historic Plaza-area homes with complex roof geometry sometimes fall at the top of that range because the inspection takes longer and requires closer documentation of tile or shake condition. The estimate is free. The inspection is what it costs. And if we find something, the repair quote is a separate written number, also free to prepare.
We Also Serve Cities Near Sonoma
Our crews regularly inspect roofs in Sonoma and the surrounding communities, including Boyes Hot Springs, Petaluma, Novato, and Cotati. If you live in one of those towns and need a documented inspection, call (361) 320-9467. We’ll schedule you the same way we schedule our Sonoma clients: with a specific arrival window and a live person on the phone.
Serving Sonoma, CA - Our Local Coverage Area
We’re based in the Sonoma 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 Roof Inspection in Sonoma
Because the City of Sonoma’s historic design review overlay requires roofs within the Plaza district to match the original material, which on most 1890s-1920s Victorians and Spanish Colonials means wood shake or clay tile. Asphalt shingles are frequently disallowed outright in that zone. Many owners also add fire-resistant underlayment and ember guards since the 2017 fires, which satisfies both preservation rules and wildland code. Call (361) 320-9467 and we’ll tell you exactly what your overlay allows before you plan anything.
Put both quotes side by side and check three things: the material spec (is it coastal-spec stainless hardware and proper underlayment, or inland-spec steel clips?), the fire rating (Class A if you’re in the wildland interface), and whether the price is in writing before work starts. A cheaper quote that uses inland-spec fasteners will corrode at the eaves within a decade and cost more in the end. We’ll walk you through any competitor quote you’ve received at no charge.
Yes. The combination of salt-laden winter air and seasonal Diablo winds accelerates corrosion on standard steel fasteners and flashing, particularly on the eave lines and valleys of older tile and shake roofs. Roofs in Sonoma’s inland valley fail at the hardware first, not the surface material. That’s why we specify stainless or hot-dip galvanized hardware on every Plaza-area repair. It costs a little more up front and lasts years longer. Call (361) 320-9467 for a free estimate.
A hillside roof inspection checks specifically for ember entry points: gaps at ridge vents, lifted starter strips, exposed underlayment at the eave, and any opening where a wind-driven ember could reach the decking. We also document the fire rating of your current materials, because your insurance carrier will ask. Many hillside homeowners need Class A fire-rated materials with ember-resistant detailing to keep their coverage in force. We’ll give you a written report your agent can actually use.
That depends on what we find, and we’ll tell you honestly. If the fasteners are sound, the flashing is intact, and there are no ember gaps, your roof will likely pass. If we find corrosion at the eaves or lift at the ridge vent, we’ll give you a written repair plan with a fixed price. Many carriers will accept a documented inspection plus a completed repair as evidence of maintenance. Call (361) 320-9467 to schedule yours and we’ll walk you through it.
Written by Travis Oakley, Owner at Brennan Roofing, serving Sonoma under The Garrison Standard.






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