Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
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Before
AfterFast, Reliable Roof Repair Across Napa
Roof repair in Napa usually means chasing a leak that started months ago and only showed itself as a stain on the bedroom ceiling. Most repairs on Napa valley homes run $380-$1,200 for shingle and flashing work, while clay tile and hillside-access jobs start closer to $750 and climb toward $2,500. If you’re on acreage outside city limits, the county permitting and setback questions change the scope before anyone touches a ladder. Call us at (945) 303-9821, tell us what you’re seeing, and we’ll give you a written price before any work starts.
Why Tilehurst Roofing Is Napa’s Preferred Roof Repair Company
Roofers who work Napa consistently know what the 2014 South Napa earthquake did to chimneys and step flashing. Dozens of local repair calls we run trace back to that morning: mortar joints that were tuck-pointed to look right from the curb but never resealed, flashing that shifted a quarter inch and now lets water bypass the metal entirely. Roof Repair in Napa is not a generic patch job, and the crews who understand the seismic history here scope the work differently. Greg Holloway leads our Napa-area team, and he insists every diagnosis includes pulling back the shingles to check what the last contractor covered up.
We’re part of the Kingswell family of roofing companies, founded in 2000, and every Tilehurst Roofing job follows the Kingswell Way: say the price before the work, show up in the window we gave, leave the property cleaner than we found it, put the guarantee in writing, and come back if it fails. A live person answers our phone 24 hours a day, seven days a week. Not a voicemail tree, not a callback queue. When you call (945) 303-9821 about a leak on your Napa roof, you talk to a person who can book the visit.
Commercial Roof Repair in Napa
Commercial roof repair in Napa covers the flat and low-slope roofs on tasting rooms, winery barrel barns, and the mixed-use buildings along Main Street and Jefferson Street. These roofs fail differently than residential pitched roofs: ponding water above a clogged scupper, deteriorated cap flashing where a vent stack penetrates, or a split seam in the membrane that opens silently over winter. The commercial jobs we run in Napa typically cost $650-$1,800 for membrane patching and flashing repair, with larger re-roof scopes running higher when a full recovery system is required. Every commercial repair gets the same written price before work starts.
Seam and penetration repair
Manufacturing defects, UV exposure, and the temperature swings between Napa’s 100°F summer days and cool winter nights stress membrane seams. We clean, prime, and heat-weld or patch the seam, then inspect every penetration on the roof plane. One A/C unit or exhaust flue leaking at the pitch pocket can push water across half the building, and we scope the entire roof, not just the active leak.
Repair-to-replace planning
When a commercial membrane is 15 or 18 years old and patching no longer makes sense, we write a repair-to-replace plan that sequences the work so you stay watertight until the re-roof. The plan includes material options from GAF, CertainTeed, Owens Corning, or IKO, matched to the building’s slope and the Napa County WUI requirements if the structure sits in a fire-designated zone.
Roof Leak Repair in Napa
Roof leak repair in Napa starts with the question the homeowner usually cannot answer: where is the water actually entering the roof? Water travels under shingles, follows the underlayment, and drips out twenty feet from the penetration. We trace it back. Most leak repairs on Napa shingle roofs run $450-$1,100. That covers removing the affected shingles, replacing failed underlayment, reseating the flashing, and checking the drip edge. Leak repair on clay tile runs $750-$2,500, because the tile has to come off, get cleaned and re-set, and bad tiles need to be matched.
Flashing and valley leaks
Step flashing at a chimney or sidewall and the metal in roof valleys are the two top leak sources in Napa, especially on homes built before 2014. The earthquake opened cracks that look cosmetic and are not. We pull the flashing, inspect the mortar and the wall sheathing behind it, and replace what failed instead of caulking over it and hoping.
Napa hillside and clay tile
On a hillside property off Mount Veeder Road, our crew repaired a leak on a Spanish clay tile roof over a detached shop that sat within the well and septic setback zone. That meant staging materials away from the leach field and hauling matching Boral tiles up a narrow gravel drive by hand. The leak traced to failed step flashing at the shop’s chimney. We replaced the flashing, installed new ice and water shield, laid fresh underlayment beneath the surrounding tiles, restored the decking and drip edge, and confirmed the WUI-compliant Class A assembly held through the next rain. That is the county-side reality of Napa leak repair: access, setbacks, and fire-rated assembly requirements are part of the price.
Trusted Brands We Service in Napa
We service and install materials from GAF, CertainTeed, Owens Corning, and IKO, and we draw from seven major manufacturers so the product fits the home rather than what happens to be loaded on the truck. For Napa customers that matters in specific ways: a hillside tile roof in a WUI zone needs a Class A assembly and properly matched tile profile, while a 1960s ranch on the east side of town often needs a lightweight composition shingle rated for high heat. We keep regional parts access for Napa so the flashing, ridge cap, and vent boots match what is already on your roof.
Common Roof Repair Problems We See in Napa Homes
- Latent earthquake damage on pre-2014 homes. The South Napa earthquake cracked chimney mortar and shifted step flashing on hundreds of valley homes, and a lot of that work was cosmetically patched. Water has been bypassing the flashing ever since, and we find it during leak repairs on older Napa homes even when the roof looks clean from the ground.
- Baked-out sealants on older composition shingles. Summers on the valley floor regularly hit 100°F or higher, which cures shingle adhesive and pipe-boot sealant until it hardens, splits, and lets water through. On 1950s-70s ranch homes east of downtown, the shingles are often at end-of-life and the seal failures show up before the shingle surface looks worn.
- Moss and algae through the Carneros fog corridor. Marine fog funnels nightly up the Carneros corridor from San Pablo Bay, keeping south-county rooftops, especially north-facing slopes, persistently damp. Moss lifts underlayment, algae eats at shingle granules, and flashing corrodes years before a shingle-only inspection would flag a problem.
- County wrangling on vineyard acreage. Many Napa homes sit on parcels governed by Napa County rather than the City of Napa. Repairs that touch roof structure, re-decking, or hillside WUI assemblies often need county review, which changes the schedule and the scope. We identify the jurisdictional split before quoting, so the written price includes the permit path, not just the patch.
Pricing for Roof Repair in Napa, CA
For a standard asphalt-shingle repair on a Napa valley floor home, a real price range is $380-$1,200. Flashing replacement at a chimney or sidewall runs $450-$1,100. Clay tile repair sits higher, $750-$2,500, driven by the tile matching, the labor to remove and reset without breaking, and the steeper access on most hillside and vineyard properties. Flat roof patches fall between $550 and $1,800. Two things move Napa pricing more than anything else: whether the property falls under City or County jurisdiction, and how close the roof sits to a well, septic system, or WUI-designated slope. We scope both before we quote. Roof Repair in Napa does not have to be a mystery price. Call (945) 303-9821 and we will hand you a written, line-item estimate before any work begins.
We Also Serve Cities Near Napa
Our crews work Napa and the surrounding valley communities several times each week. That includes Deer Park, Boyes Hot Springs, Sonoma, and Winters. If your property sits on the edge of town or up against the eastern hills, we already know the roads and the county rules for your side of the line.
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 Roof Repair in Napa
If your parcel sits outside the Napa city limits, Napa County handles the permit. Repairs that involve replacing decking, changing the roof assembly, or working on a hillside in a WUI zone almost always need county review, including setbacks from wells and septic systems. We identify which jurisdiction controls your parcel before quoting, and we pull the permit ourselves. Call (945) 303-9821 with your address and we can tell you what applies.
We remove the tile in the affected area, trace the leak to the actual penetration, replace failed flashing or underlayment, and re-set the tile with matching pieces from major manufacturers including Boral. Hillside access and the need to avoid leach fields or steep driveways adds staging time, which shows up honestly in the quote. Estimates are free; call (945) 303-9821.
The most common cause is latent damage from the 2014 South Napa earthquake, usually cracked chimney mortar or shifted step flashing that was tuck-pointed on the surface but never resealed underneath. Water travels inside the wall cavity for years before the stain appears, which is why the fix is not caulk: it is opening the flashing, inspecting the joint, and sealing the real source. Call (945) 303-9821 to schedule a leak trace.
We scope access before the crew arrives: driveway grade, well and septic setbacks, and whether tile or membrane materials can be staged near the structure or need to be hand-carried. Repairs on remote Napa hillside and vineyard properties cost more because the staging and hauling are real labor, and we put that in the written price rather than surprising you at the end. Call (945) 303-9821 for a specific quote.
Yes. The persistent fog keeps north-facing slopes and low-lying rooftops damp for months, which accelerates moss, granule loss, and flashing corrosion. We recommend more frequent flashing and vent-boot inspections in the Carneros corridor and southern valley than we do in the drier hills, and we often spec algae-resistant shingle lines from manufacturers like GAF or Owens Corning. Call (945) 303-9821 and we will tell you what your specific roof slope is doing in Napa’s fog pattern.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving Napa and the surrounding valley.