Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Napa
Roofing work in Napa costs between $5,800 and $42,000 for most homes, with estate and hillside properties running higher because of fire-rated assemblies and longer material hauling. Brennan Roofing serves the entire Napa Valley from the city core out through Silverado, Browns Valley, and the county acreage east of the Vaca Mountains. Our crews know Napa’s permitting split between City of Napa and Napa County, and we bring that working knowledge to every quote. Call (361) 320-9467 for a written estimate before any work starts.
Since the 2020 Glass Fire, nearly every Napa roof is judged less by its shingle warranty than by how it performs against ember intrusion off the Mayacamas and Vaca Mountains. County inspectors and insurers now expect documented Class A assemblies with screened eave, ridge, and off-ridge vents, metal drip edge, and fire-rated cap sheets on hillside and estate roofs. That changes what “roofing” means here. It’s not just replacing worn material. It’s proving the roof will hold against the next red-flag wind event.
We approach every job the same way: written price on paper before any work begins, background-checked and uniformed technicians on site, and a full-year written guarantee called the 365-Day Done Right Promise. If anything fails within that year, we return free of charge to make it right. That’s The Garrison Standard, and it’s not a selling point. It’s the operating baseline.
Why Brennan Roofing Is Napa’s Preferred Roofing Company Company
Napa homeowners call us after another roofer has no-showed, shifted a price at the door, or left flashing exposed and debris in the yard. The Garrison Standard exists for exactly that reason. Every job starts with a written price that does not move. Every technician is background-checked and arrives in uniform. Phones are answered by a live person around the clock, not an automated queue. That discipline matters when you’re letting a crew onto a $1.2 million Silverado estate roof or an 1890s Victorian near downtown.
We regularly work properties across Napa: Alta Heights mid-century ranches with original asphalt nearing end of life, Browns Valley homes where winter rain exposes failed valley flashing, and county acreage parcels east of Silverado Trail where well and septic setbacks change where and how a new roof gets installed. Local knowledge like that is not decoration. It changes the quote, the scope, and the inspection schedule.
Travis Oakley runs our Napa operations and personally reviews scopes on acreage and estate jobs before quoting. That’s real accountability, not a field supervisor who shows up after the fact. Our Roofing Company team is independently owned and operated, part of the Garrison Partners family founded in 2000, and held to the same standard on every job from a 1,200-square-foot bungalow to a 9,000-square-foot winery estate roof.
Metal Roof Installation in Napa
Metal roof installation in Napa runs $22,000 to $65,000 on a typical home, with estate and hillside properties pushing higher due to crane access, longer panel runs, and fire-rated underlayment requirements. Standing-seam metal is increasingly common on Napa County acreage homes because it carries a Class A fire rating and sheds embers far better than asphalt shingle. Homeowners in fire-prone zones off Dry Creek Road and the Silverado foothills specifically ask for it after seeing what survived the Glass Fire.
We install standing-seam and exposed-fastener metal systems over solid decking with high-temperature underlayment rated for wildland-urban interface zones. Flashing details get extra attention here: valley metal, sidewall counter-flashing, and pipe boots all have to be ember-tight or an inspection will flag them.
Ember-Resistant Detailing on Metal Roofs
A standing-seam metal roof isn’t automatically ember-proof. The gaps at the eave, ridge, and gable ends still need screened assemblies that block embers from reaching the decking. In Napa County, inspectors look specifically for those details. We spec metal drip edge, screened eave and ridge vents, and fire-rated closure strips at every transition.
Clay and Concrete Tile Transition
Some Napa acreage homeowners want to move from failing clay tile to metal for lower maintenance and better fire performance. We handle the tear-off, deck inspection, and structural reinforcement if the existing framing was built for heavier tile. The price moves based on what’s under the tile. Termite damage and dry rot are common on 1990s Silverado estates where original tile underlayment failed years ago.
Residential Roofing in Napa
Residential roofing in Napa spans a wide range: $5,800 to $18,000 for asphalt shingle re-roofs on mid-century ranches in Alta Heights and Browns Valley, and $18,000 to $55,000 for larger estate homes with steeper pitches, satellite access issues, or tile that needs reset rather than replaced. A typical 2,200-square-foot Napa home with architectural shingles lands around $14,000 to $19,000 when the decking is sound and the existing flashing can be reused.
The wildcard on Napa residential jobs is what’s under the old roof. Older Victorians near downtown sometimes carry three layers of original wood shake under asphalt, which adds tear-off labor and disposal fees. Mid-century homes often have 3/8-inch plywood decking that fails current shear requirements and needs an overlay. We scope that before quoting, not after the tear-off.
Tile Underlayment Replacement
Napa’s 1990s clay and concrete tile roofs are hitting the end of their original underlayment life. The tile itself often looks fine, but the felt underneath is brittle and leaking. We remove the tile, install new underlayment and a Class A cap sheet, then reset the same tile with new bird stops and ember-screened ridge vent. That’s typically $18,000 to $34,000 depending on roof size and tile condition.
Defensible-Space Roofing Review
Before we quote a residential job on a hillside or estate lot, we walk the perimeter looking at how the roof interacts with vegetation, gutters, and deck attachments. Napa County now flags combustible debris accumulation in roof-to-wall intersections and valley areas. We include that review in our free estimate, and we’ll tell you honestly if your roof needs more than new shingles to satisfy an insurer.
Trusted Brands We Service in Napa
We install and service roofing systems from GAF, CertainTeed, and Owens Corning, and we stock common components locally for faster turnaround on Napa jobs. If a winter storm damages a section of GAF Timberline on an Alta Heights home, we can match the shingle and color without a two-week factory order. If you have a CertainTeed Presidential Shake roof on a Silverado estate, our technicians know its fastening pattern and valley detail requirements. No guesswork. We also carry IKO and Owens Corning product lines for homeowners who want to compare options in writing before choosing.
Common Roofing Company Problems We See in Napa Homes
- Acreage permits were pulled through the wrong jurisdiction. Napa County and the City of Napa have different review paths, and a detached shop or ADU built under a county permit may need a separate roofing permit when re-roofed. We confirm jurisdiction before quoting so inspections don’t stall mid-job.
- Open eave and ridge vents on hillside homes. Standard venting leaves gaps that wind-driven embers can penetrate. On a Mayacamas-facing slope, that’s a fire exposure. We replace them with screened, ember-resistant assemblies as part of the re-roof scope.
- Failed tile underlayment on 1990s Silverado estates. The tile looks fine, but the felt underneath is shot. Water moves through the tile system and rots the decking from below. By the time a leak shows on the ceiling, the decking repair is usually significant.
- Drainage and grading problems on open acreage lots. New downspouts and drip edge discharging onto bare soil can undermine footings or flood a detached structure the first wet winter. We review grading and drainage before finalizing roof scope on open lots.
Pricing for Roofing Company in Napa, CA
Here’s what we see in the current Napa market. Asphalt shingle re-roof on a standard single-story: $5,800 to $12,000. Two-story or steep-pitch home: $14,000 to $19,000. Tile underlayment replacement with tile reset: $18,000 to $34,000. Standing-seam metal on a typical Napa home: $22,000 to $48,000. Larger estate and hillside jobs go up from there based on access, structural work, and fire-rated detailing. The written estimate we hand you before any work starts is the price. It does not move at the door. Call (361) 320-9467 and we’ll scope it properly, including permit jurisdiction, decking condition, and ember-resistant requirements that apply to your property.
We Also Serve Cities Near Napa
In addition to our work throughout Napa, we serve Deer Park, Boyes Hot Springs, Sonoma, and Winters. The same Garrison Standard applies on every job in every one of those cities: written price first, background-checked uniformed technicians, live-answer phones, and the 365-Day Done Right Promise in writing. If you’re on the edge of our service area, call and we’ll confirm coverage.
Serving Napa, CA - Our Local Coverage Area
We’re based in the Napa 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 Napa
A roof on a Napa County acreage parcel generally goes through Napa County building, while a roof inside Napa city limits goes through City of Napa. The complication is outbuildings, shops, and detached ADUs: a structure permitted under county review may need a separate county roofing permit even if the main house is permitted through the city. We confirm jurisdiction on every quote. Call (361) 320-9467 before you assume, because a wrong permit filing delays inspection and can hold up your re-roof for weeks.
We strip to the decking, install ice and water shield in the valleys and around every penetration, lay a Class A cap sheet, then reset the surviving tile with new bird stops and ember-screened ridge vent. On a Silverado estate with failing 1990s tile underlayment, our crew did exactly that and swept the batten cavities with a thermal-imaging camera during a red-flag warning before the dry-in inspection. The county signed off the same week. The tile get evaluated piece by piece during the reset, and we tell you in writing which tiles are reusable and which need replacement.
Access and permitting are the two biggest price movers. An acreage roof may require a crane or long material haul from the road to the structure, which adds labor and equipment cost. Septic and well setbacks may restrict where material staging or a dump trailer can sit. Open lots also need a drainage and grading review so new downspouts don’t undermine footings. A downtown bungalow has none of those line items, so the quote is materially different. We scope every one of those factors before writing your price, and the number on paper is the number you pay.
Yes. We install Class A cap sheets, metal drip edge, screened eave and ridge vents, ember-screened off-ridge vents, and bird stops that meet current Napa County and City of Napa expectations for wildland-urban interface roofing. We document the detailing with photos and a written scope summary you can send to your insurer. A documented Class A assembly with screened vents is what most Napa insurers now ask about after the Glass Fire. Call (361) 320-9467 and we’ll walk your roof and tell you precisely what your specific assembly needs.
We install and service GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral systems. For fast local turnaround, we stock common GAF, CertainTeed, and Owens Corning components and match existing shingle colors without a long factory lead. If you have an IKO or Tamko roof and need a repair, our technicians know the fastening and flashing details those systems require. Free estimate: (361) 320-9467.
If you’re weighing a re-roof, a tile underlayment replacement, or a metal roof on your Napa property, call (361) 320-9467. We’ll scope the job properly, confirm your permit jurisdiction, document the ember-resistant detailing, and hand you a written price before any work starts. That’s how Brennan Roofing operates under The Garrison Standard.
Written by Travis Oakley, Owner at Brennan Roofing, serving Napa and surrounding areas.






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