Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterFast, Reliable Roofing Company Across St. Helena
Finding a roofing company in St. Helena that treats an old Victorian with the same discipline as a new wine-country estate is harder than it should be. We’re Brennan Roofing, and we work across St. Helena, from the historic district off Main Street to the wildland-urban interface homes along Spring Mountain Road and Howell Mountain. Every job starts with a written price before any work begins, a background-checked uniformed technician on site, and a full-year written guarantee. If you’re pricing a re-roof, repair, or inspection, call (361) 320-9467 and talk to a live person, 24/7.
Why Brennan Roofing Is St. Helena’s Preferred Roofing Company
St. Helena homeowners don’t have time for roofers who no-show or change the number at the door. Our local reputation is built on showing up inside the promised window and putting the price on paper before a single shingle comes off. Customers across St. Helena, from the bungalows near Lyman Park to the estates north of town, tell us the same thing: the crew was identifiable, the job site was left clean, and the final invoice matched the written quote. That’s The Garrison Standard, and it doesn’t flex by job size.
As an independently owned and operated member of the Garrison Partners family, founded in 2000, we answer to a defined standard rather than a franchise playbook. Every call to (361) 320-9467 is answered by a live person, around the clock, no voicemail. Every technician arrives in uniform, background-checked, and ready to walk you through exactly what your roof needs in plain language.
Metal Roof Installation in St. Helena
Metal roof installation in St. Helena is a growing request, especially for homeowners who want a fire-rated assembly that still fits the wine-country streetscape. A standing-seam or metal shingle roof replacement here typically runs $18,000 to $45,000 depending on roof complexity, pitch, and whether the existing decking needs full replacement. Metal handles St. Helena’s intense summer UV exposure and wet-season rain far better than aged shake, and it satisfies the Class A fire-rating requirements Napa County now enforces after the 2020 Glass Fire.
Historic-Look Metal Profiles
Older St. Helena homes don’t have to give up their character. We install metal shingle and tile profiles from GAF and CertainTeed that read as traditional from the street while carrying a Class A fire rating. This matters on downtown Victorians where the original cedar shake has to come off.
When Metal Makes Sense Here
Homes along the eastern hills and canyon edges face direct ember exposure during fire season. Metal with ember-resistant ridge vents and non-combustible underlayment is one of the strongest roofs you can put on those properties. The upfront cost is higher, but the assembly is built for decades of St. Helena sun and wind.
Residential Roofing in St. Helena
Residential roofing in St. Helena covers a lot more than tearing off old material. A typical full re-roof in St. Helena runs $12,000 to $28,000 for architectural shingle systems on mid-sized homes, while clay tile or slate-style assemblies can push past $50,000 on larger estates. The number moves based on what we find once the old layers come off: skip sheathing, rotted rafter tails, failed flashing, and code upgrades the permit requires once the deck is exposed.
Asphalt and Composite Systems
For most St. Helena homeowners, a Class A architectural shingle system from Owens Corning or IKO is the practical choice. It’s cost-efficient, fire-rated, and we can match the existing color profile so the home doesn’t look like it got a completely different roof from the neighbors.
Tile and Slate-Style Options
Newer construction and wine-country estates often carry clay tile or composite slate. We install and repair these systems, including underlayment replacement and valley work, which is where St. Helena roofs most often fail during winter rains. The substrate and flashing details matter more than the visible tile.
Trusted Brands We Service in St. Helena
We install and repair roofing systems from GAF, CertainTeed, Owens Corning, and IKO, and we keep common profiles and colors available for St. Helena customers so repair and re-roof projects don’t stall waiting on material. When a homeowner needs a specific architectural shingle line to match an existing roof on Meadowood Lane or a tile profile off Pope Street, we source it and price it into the written quote before work starts. No change orders at the door, no substitutions you didn’t approve in writing.
Common Roofing Company Problems We See in St. Helena Homes
- Layered wood shake over skip sheathing. Many St. Helena homes, especially pre-1940s Victorians and bungalows, still carry original cedar or redwood shake over 1x skip sheathing. That assembly can’t support a modern Class A fire-rated roof, and re-decking becomes a necessary line item once the tear-off starts.
- Failed flashing at chimneys and valleys. St. Helena’s wet-season rain exposes flashing failures quickly. We routinely find cracked or missing step flashing and dry-rotted ridge boards at chimneys on older homes, which the previous roof never addressed.
- Non-compliant vents and underlayment. Post-Glass Fire, Napa County requires ember-resistant vents and non-combustible underlayment on most re-roofs in the wildland-urban interface. Homes re-roofed before 2020 often carry standard box vents and felt underlayment that no longer pass permit review.
- UV-baked composite and tile underlayment failure. St. Helena’s hot, dry summers bake roofing underlayment. By the time a tile or composite roof leaks, the underlayment has usually been failing for years, which means the repair is a re-roof of the substrate, not a patch job.
Pricing for Roofing Company in St. Helena, CA
Here’s what St. Helena homeowners should expect to pay in the current market. Roof repair work, including flashing replacement, leak repair, and shingle matching, runs $450 to $2,800. Full re-roofs on mid-sized homes run $12,000 to $28,000 for architectural shingle systems. Metal roof installation runs $18,000 to $45,000. Tile and slate-style assemblies range $25,000 to $55,000. Roof inspections run $250 to $600. The biggest variable is what’s under the existing roof: skip sheathing, rotted framing, and post-Glass-Fire code upgrades are the three items that move a quote the most. Call (361) 320-9467 and we’ll give you a written, line-item price. No work starts until you approve that number.
We Also Serve Cities Near St. Helena
Our Roofing Company crews serve St. Helena and the surrounding wine-country communities, and dispatch is coordinated from the Los Angeles office for scheduling across the region. Homeowners in St. Helena can schedule inspections and repairs alongside neighbors in Los Angeles, San Diego, San Jose, and San Francisco.
Serving St. Helena, CA - Our Local Coverage Area
We’re based in the St. Helena 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 St. Helena
Yes, in most cases Napa County now requires Class A fire-rated assemblies, including ember-resistant vents and non-combustible underlayment, even on historic homes in St. Helena. The 2020 Glass Fire drove this requirement, and it applies to the majority of re-roofs in the wildland-urban interface and many downtown properties as well. We handle the permit scope and material compliance in the written quote. Call (361) 320-9467 and we’ll walk through what your specific home triggers.
The most common findings are three layers of old shake over original 1x skip sheathing, cracked rafter tails, and a ridge board rotted from a failed chimney flashing. These aren’t surprises to us, they’re the normal condition of a 100-year-old St. Helena roof. We price a decking allowance in the written quote, and any framing repair is documented and approved by you in writing before we proceed.
Line up the decking allowance, the underlayment type, the vent specification, and the flashing scope. A low bid that assumes reusing old flashing and skips the ember-resistant vent upgrade will move once the permit is pulled. We write those items into the price up front, so you’re comparing real numbers. Call (361) 320-9467 for a written estimate.
Yes. We install metal shingle and tile profiles from GAF and CertainTeed that read as traditional cedar or clay from the street while carrying a Class A fire rating. On a St. Helena Victorian or bungalow, you keep the historic character without the fire risk of aged shake. We’ll show you material samples and price the full assembly in writing.
Because opening up an older St. Helena home exposes what the roof has been hiding: skip sheathing that can’t carry a Class A assembly, rotted rafter tails, and outdated roof-to-wall connections that current code requires upgrading. The roofing number moves when the framing and decking scope becomes unavoidable. We handle this with an inspection first, allowances written into the contract, and written approval before any additional work. That’s the whole point of The Garrison Standard.
Call (361) 320-9467 to schedule your free estimate. You’ll get a live person, a written price, and a roof that’s done right the first time, in writing, for one full year.
Written by Travis Oakley, Owner at Brennan Roofing, serving St. Helena with The Garrison Standard.