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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Ashland
Finding a roofing company in Ashland that shows up on time, puts the price in writing before work begins, and stands behind the job for a full year shouldn’t be a gamble. We’re Brennan Roofing Co San Francisco, and we serve Ashland homeowners with the same discipline on every job: a written quote before anything starts, background-checked uniformed technicians, and the 365-Day Done Right Promise in writing. If your roof is leaking, showing age at the flashings, or needs a full replacement before the next rainy season, call (831) 318-8819 for a free estimate. A live person answers, around the clock.

Why Brennan Roofing Co San Francisco Is Ashland’s Preferred Roofing Company
Ashland’s hillside lots and older housing stock demand a roofer who knows what the local inspectors look for and what the winter storms actually do to a roof up here. That’s the work we do every day. Our team has walked scores of Ashland roofs, from the mid-century homes off Foothill Boulevard to the tighter lots near San Leandro Creek. We know the wear patterns: cracked valleys, corroded drip edge, moss on the north-facing slopes, and underlayment that has turned to dust under decades of thermal expansion.
We don’t send a salesperson to give you a pitch. We send a technician who inspects the roof, writes the scope of work, and gives you a line-item price in writing. That number does not move at the door. Ashland homeowners tell us the same thing: they’ve been burned by roofers who quote low and then find “unexpected damage” once the old roof comes off. Our process removes that. The price goes on paper before any work starts, always.
Every technician who steps onto an Ashland roof is background-checked and arrives in uniform. You know exactly who is on your property. And if anything fails within a full year, the 365-Day Done Right Promise means we come back and make it right at no charge. In writing.
Styles & brands we work with






Roof Maintenance in Ashland
Roof maintenance in Ashland is not a “nice to have” before the rains come. It’s the difference between a roof that sheds water for another decade and one that leaks through a failed flashing the first week of November. The long dry summers here bake asphalt shingles until they curl and crack. Then the concentrated winter rains find every weak point. Moss builds on shaded slopes behind the tree cover off Redwood Road, and gutters fill with dry leaves that become a fire hazard during wildfire season.
Inspection and Cleaning
We start with a full roof surface check: shingles, flashings, valleys, vents, and the drip edge. Then we clear gutters and downspouts and check the “defensible space” around the roof perimeter. Ashland is in a WUI zone, and the Fire Marshal will cite a home whose roof or gutters hold dry debris during fire season. It’s not enough that the shingles look fine.
Maintenance Repairs
Loose flashing, missing granules, lifted shingle tabs, and failed sealant at penetrations are all repairable before they become leaks. Typical roof maintenance in Ashland runs $225 to $550, depending on what we find and how much gutter and flashing work is involved. You’ll get a written scope before we touch anything.
Roof Coating in Ashland
Roof coating in Ashland is a practical option for homeowners with low-slope or flat sections who want to extend a roof’s service life without a full tear-off. The Mediterranean climate here punishes bare roofing membranes: UV breaks down the surface, thermal expansion opens seams, and winter rains pool long enough to find every pinhole. A properly applied coating system seals the surface, reflects UV, and buys years at a fraction of replacement cost.
Low-Slope and Flat Roof Section Coating
Many Ashland homes built in the 1950s and 1960s have flat overhangs, garage roofs, or low-slope sections that hold water. We clean and prep the surface, repair cracks and blisters, and apply a reflective elastomeric coating. This is not a paint job. It’s a membrane that has to be compatible with the existing roof system, or it will peel within a season. Expect to pay $1,800 to $4,500 for a typical Ashland flat section, depending on square footage and the condition of the substrate.

Coating Over Composition Shingles
Coating over asphalt shingles is rarely the right call, and we’ll tell you that plainly if it isn’t. Where it does make sense is on aged but sound shingle roofs where the homeowner wants to reduce heat gain and stave off a replacement for two to five years. The range runs $2,500 to $6,000 for a full Ashland roof, but we’ll only recommend it after an inspection confirms the decking and underlayment are still solid.
Trusted Brands We Service in Ashland
We install materials from GAF, CertainTeed, and Owens Corning. We don’t push one manufacturer. We show you the differences in fire rating, wind rating, warranty, and cost, then let you choose with the facts in front of you. For Ashland specifically, we stock high-wind nailing patterns and Class A fire-rated assemblies that meet California Building Code Chapter 7A, because the hillside exposure category here demands more than a standard install. Call our Roofing Company team and we’ll walk you through the options honestly.
See the difference
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After
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AfterCommon Roofing Problems We See in Ashland Homes
- Blow-offs from inadequate nailing: A cheap quote will spec a 5-nail pattern. Ashland’s foothill wind exposure (category C) requires a 6-nail high-wind pattern on most roofs. The wrong pattern shows up as missing shingles after the first strong winter front.
- Failed underlayment from thermal cycling: The long dry summers bake roofs and the winter downpours soak them. Over 30 to 40 years, the felt underlayment delaminates. By the time you see shingles curling, the waterproofing layer underneath may already be compromised.
- Corroded drip edge and flashing: Concentrated winter rainfall accelerates corrosion on old galvanized flashing at eaves, valleys, and chimneys. When a roofer reuses that material to save money, leaks reappear the first heavy storm after the roof is “fixed.”
- Fire-safety reinspection failures: The Fire Marshal’s office in the Ashland area requires defensible space clearance around homes in the WUI zone. A roof can pass a visual inspection but fail the reinspection in the dry season if gutters hold leaves and the roof edge isn’t clean.
Pricing for Roofing in Ashland, CA
Roof replacement in Ashland typically runs $11,000 to $18,000 for a standard composition shingle roof on a mid-century single-family home. Smaller repairs and maintenance work range from $225 to $1,500. Roof coating projects fall between $1,800 and $6,000 depending on the system and square footage. The big variables are whether the decking is sound, whether the existing roof has one layer or two, and whether the home is in the hillside wind exposure zone that requires a 6-nail pattern and additional underlayment details. We give you a written, line-item quote for free. The number on the paper is the number you pay. Call (831) 318-8819 to schedule yours.
We Also Serve Cities Near Ashland
Brennan Roofing Co San Francisco serves Ashland and the surrounding East Bay communities, including San Francisco, Hayward, Berkeley, and Daly City. If you’re in Ashland or a neighboring city and want the same written-price, no-change-order standard, learn more about our Roofing Company in Ashland service area and process.
Serving Ashland, CA - Our Local Coverage Area
We’re based in the Ashland 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 in Ashland
Most Ashland homes in the hillside and open-terrain areas fall under exposure category C, which requires a 6-nail high-wind nailing pattern and a fastener schedule matched to the shingle manufacturer’s high-wind documentation. Verification happens in two steps: the permit plan shows the specified assembly, and the inspector confirms the installed nailing pattern before the final sign-off. A compliant quote will name the nailing pattern in writing. A cheap quote won’t mention it at all. That’s the first thing to check when you compare bids. Call (831) 318-8819 and we’ll show you exactly what the code requires for your specific lot.
Defensible space is about the whole roof perimeter, not just the shingles. In Ashland’s WUI zone, the Fire Marshal enforces clearance rules that include gutters free of dry leaves and debris, and a roof edge that doesn’t collect combustible material. A roof can be structurally sound and still fail the fire-safety reinspection if the gutters are loaded or overhanging branches touch the roof line. We include gutter clearing and defensible space inspection as part of our roof maintenance in Ashland, so the roof passes both the visual and the fire-safety reviews the first time. Call (831) 318-8819 to schedule an inspection.
Yes, and in two ways. First, a documented Class A fire-rated assembly with a reinforced nailing pattern reduces the underwriting risk an insurer assigns to your home, especially in a WUI zone where fire risk drives premium pricing. Second, if you do file a claim after a storm, having the permit record, the invoice showing the 6-nail pattern, and the manufacturer’s installation sign-off gives your adjuster the documentation they need to pay the claim without delay. A roof put on without those documents can get your claim reduced or denied. That’s why every Brennan Roofing job in Ashland comes with written documentation of the assembly we installed. Call (831) 318-8819 for a free estimate and we’ll show you the paperwork trail your insurer wants.
The cheap quote usually omits three things: the 6-nail high-wind pattern, the WUI-specific fire-resistant underlayment, and new flashing and drip edge. Those three omissions are exactly what fails in Ashland’s winter storms and fire-season inspections. The compliant quote line-items each of them. The compliant quote also includes the permit, because Ashland requires a permit and inspection on roof replacements. A roofer who tells you “we don’t need a permit for this” is telling you the job won’t be documented. That documentation is the only proof of code compliance you’ll ever have. Call (831) 318-8819 for a written quote that shows every line item before you sign anything.
The square count difference is almost always a measurement error, and it changes the material and labor cost by roughly $700 to $1,100 on a typical Ashland roof. Ask both bidders for the roof plan and walk the measurement with them before comparing numbers. Then check whether both include the same decking, underlayment, flashing, ventilation, and nailing pattern. The square count matters less than what’s in each square. We give you a line-item quote with the measured square footage and every material and step listed. Bring your other bid to us and we’ll walk you through the differences honestly. Call (831) 318-8819.
Written by Travis Oakley, Owner at Brennan Roofing Co San Francisco, serving Ashland roofing needs with the Garrison Standard.