Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Fairfax
Roof replacement in Fairfax typically runs $14,000 to $32,000 depending on slope, decking condition, and what’s under the old shingles. Roof repair work lands between $450 and $2,800 for most Fairfax homes. Those are real numbers for this market, and they are the kind of numbers a homeowner should see before any work begins. If you live off Sir Francis Drake Boulevard, up in Oak Manor, or anywhere else in Fairfax, call Brennan Roofing at (361) 320-9467 and we will put a written price in your hand before a single shingle comes off.
Fairfax is not a town where you can rush a roof job. The redwoods and Douglas firs that make this place beautiful also keep roofs shaded, damp, and covered in moss. A roofer who does not understand that will give you a roof that fails early. We do understand it, because we work here regularly, and we plan for it from the first inspection.
Why Brennan Roofing Is Fairfax’s Preferred Roofing Company Company
Fairfax homeowners tend to ask the same questions before they hire anyone: who is actually showing up, what is the real price, and what happens if something goes wrong. Those are fair questions, and we answer them in writing before any work starts.
Every technician we dispatch to Fairfax is background-checked and arrives in uniform. That is part of the Garrison Standard, and the standard does not change from job to job. A 1920s Craftsman bungalow in Oak Manor gets the same discipline as a hillside custom home off Bolinas Road.
Our local reputation comes from doing what we say we will do. We show up inside the promised window. We keep the job site clean. We pull the permits, handle the inspections, and we do not leave until the roof is right. The 365-Day Done Right Promise backs every installation and repair in writing for one full year. If something fails within that year, we come back free.
Travis Oakley leads our crews, and the phones are answered by a live person around the clock. No voicemail, no callback queue. If you call at 2 a.m. with water coming through your ceiling, a person picks up.
Free Roof Estimate in Fairfax
A Free Roof Estimate from Brennan Roofing in Fairfax means we come out, walk the roof, check the decking, flashing, and ventilation, and write down an exact price. Not a ballpark. Not an email with a range. A fixed number on paper, before any work starts, that does not move at the door. Fairfax’s older homes, many built between the 1910s and 1960s, hide surprises under the old shingles, and we account for that in the estimate rather than springing it on you later.
What the Estimate Covers
We inspect the decking underneath, the flashing around chimneys and skylights, the drip edge, and the attic ventilation. On Fairfax homes with original skip sheathing under old wood shake, we check every section rather than assuming it is sound. The written estimate lays out what gets replaced, what gets repaired, and what it costs line by line.
When to Call for an Estimate
Before the rainy season starts, or as soon as you notice moss building up on a shaded slope, call us. The November through March rains in Fairfax will find every weak spot in a roof, and a fixed price is a lot more comfortable to have in hand before the first storm hits.
Roofing Contractor in Fairfax
A Roofing Contractor in Fairfax has to understand the town’s tree ordinance, its fog belt climate, and its older housing stock before anyone climbs a ladder. Brennan Roofing navigates all three on a regular basis. Fairfax’s heritage-tree protections mean you often cannot trim the overhanging redwood limbs that shade your roof. That changes how we access the roof, how we stage materials, and how the schedule runs. It is a slow, permit-bound process on some hillside homes, and an honest contractor tells you that up front.
Full Replacement on Older Fairfax Homes
Many Fairfax roofs sit on skip sheathing, with gaps between the boards. That was standard construction for decades, but modern shingle manufacturers require solid decking underneath. When we strip an old wood shake roof in Oak Manor or near Peri Park, we often sister new framing, lay solid decking, and add ice and water shield through the valleys before the new shingles go down. That is the difference between a roof that lasts and one that fails in two seasons.
Repair, Inspection, and Ongoing Care
Not every Fairfax roof needs to come off. We do targeted repair on flashing failures, leaky valleys, and rotted sections. We also do honest roof inspections for homeowners who are thinking about selling or who just want to know what condition their roof is in before winter. The inspection report tells you what is urgent, what can wait, and what it will cost.
Trusted Brands We Service in Fairfax
Brennan Roofing installs materials from GAF, CertainTeed, and Owens Corning, and we explain the differences in plain English so you can pick with confidence. Roofing Company work in Fairfax means matching the material to a roof that stays shaded and damp for much of the year. Architectural shingles hold up better in that environment than three-tab, and we stock the most common Fairfax configurations so repairs do not wait on a parts order. For roof replacement in Fairfax, we are an installer who knows exactly what holds up under redwood canopy.
Common Roofing Company Problems We See in Fairfax Homes
- Moss and lichen on north-facing slopes. The north slopes under big redwoods in Oak Manor and the flats near Peri Park develop moss so fast they need cleaning and treatment every 12 to 18 months. Most of Marin goes three to five years between treatments; Fairfax’s canopy changes that math.
- Rotted skip sheathing under old wood shake. Decades of shade and fog keep the decking damp, and original skip sheathing rots from the underside. By the time the shingles curl, the decking underneath is often too far gone to reuse.
- Inadequate attic ventilation. Fairfax’s fog keeps roofs wet for much of the day, and attic spaces without proper ventilation trap that moisture. New decking rots fast if we do not correct the airflow at the same time.
- Flashing failures at chimneys and valleys. Intense winter downpours from November through March test every seam on older Fairfax roofs. Galvanized flashing from a 1950s ranch home is usually at the end of its life, and leaks show up at the worst moments.
Pricing for Roofing Company in Fairfax, CA
A full roof replacement in Fairfax typically lands between $14,000 and $32,000, depending on square footage, slope, and what needs to happen beneath the shingles. Homes with original wood shake and rotted skip sheathing fall toward the higher end because the decking has to be rebuilt before the new roof can go on. Roof repair in Fairfax usually runs $450 to $2,800, with flashing work and small leaks at the lower end and valley rebuilds or decking patches at the upper end. Metal roofing and standing-seam systems run higher than composition, and we quote those case by case. The price we put in writing is the price you pay. Call (361) 320-9467 for your free estimate, and we will give you the exact number for your Fairfax roof.
We Also Serve Cities Near Fairfax
Brennan Roofing works throughout central Marin, and Fairfax sits at the center of our service area. We cover San Anselmo, Kentfield, San Rafael, and Larkspur with the same written-price standard and the same crews. If you are in any of those towns and looking for a Roofing Company in Fairfax that will show up and stand behind the work, call us at (361) 320-9467.
Serving Fairfax, CA - Our Local Coverage Area
We’re based in the Fairfax 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 Fairfax
Most full replacements in Fairfax take two to four weeks from signed contract to final inspection. The wild card is the tree preservation permit. Because Fairfax’s heritage-tree ordinance blocks limb removal without a permit, roofers often have to schedule crane lifts and tarp-and-walk access over protected redwoods instead of ripping out overhanging branches. That is a slow, permit-bound path that adds real lead time to any re-roof on the hillsides. Call (361) 320-9467 and we will give you a schedule with the permit path built in, not an optimistic guess.
Yes. Fairfax’s tree preservation ordinance protects heritage trees, and that includes many of the redwoods and Douglas firs in Oak Manor and the surrounding hillsides. You cannot simply cut back overhanging limbs without going through the town’s permit process. Brennan Roofing plans around that from the beginning, working with the permit timeline rather than pretending it does not exist and then surprising you with a delay.
Because the redwood canopy near Peri Park and the surrounding flats keeps that slope shaded and damp for virtually the entire day, and Fairfax’s fog belt adds moisture even in summer. The moss never really gets a chance to dry out. Homes in that situation typically need moss treatment every 12 to 18 months instead of the three to five years most of Marin expects. The fix is not just cleaning; it is also ventilation and material choices that tolerate constant shade. Call (361) 320-9467 and we will look at exactly what your slope needs.
Yes, and in Fairfax you should insist on it. On high-end jobs, the long-lead items like architectural shingles, underlayment, and specialty flashing are what drive the schedule and the cost. If you sign a scope that has not fixed those choices, an unsigned change dissolves the schedule and the price. We put the price in writing before anything is ordered, and once you choose your finishes, the number does not move.
Look at whether the other bid includes the tree permit timeline, the decking inspection, the ventilation correction, and the fixed price in writing before any work starts. A Fairfax hillside home under redwood canopy is not the same as a sunny flat roof in Corte Madera. If the other roofer skips the permit step or quotes you a price without walking the roof, that is not a lower bid, it is an incomplete one. Call (361) 320-9467 and we will walk the roof with you, line by line, so you can compare real scope to real scope.
Written by Travis Oakley, Owner at Brennan Roofing, serving Fairfax and central Marin.






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