Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Inspection Across Portola Valley
Roof inspection in Portola Valley is different from anywhere else in the Bay Area, and it starts with one fact: this town enforces a Wildland-Urban Interface ordinance that most neighboring cities don’t. A standard visual inspection isn’t enough here. The inspector has to verify fire-rated materials, eave detailing, and vent construction against a specific code. Brennan Roofing Co San Jose handles that level of scrutiny every week. If you need a roof inspection in Portola Valley, call (669) 238-2101 and you’ll get a live person who can schedule it.
We know the lots off Alpine Road, the older estates near Portola Valley Ranch, and the custom builds winding up toward Windy Hill. Those roads, those rooflines, the way water moves off a low-pitch roof in a February storm. That’s the knowledge that makes an inspection worth paying for. Not a checklist. An actual read on your roof.
Why Brennan Roofing Co San Jose Is Portola Valley’s Preferred Roof Inspection Company
Travis Oakley runs our crews, and his standard is simple: the price goes on paper before anything starts, the technician shows up in uniform, background-checked, and the work is guaranteed in writing for a full year. We don’t ask Portola Valley homeowners to take that on faith. It’s called The Garrison Standard, and it’s the same on a $300 inspection as a $45,000 reroof.
Portola Valley homeowners call us because inspections here have real stakes. A missed fire-code detail can fail a WUI inspection and stall a reroof permit for weeks. A missed flashing issue at a valley can mean water in the ceiling by Thanksgiving. We’ve inspected roofs on Alpine Road where original 1970s tar-and-gravel had been covered over by shingles, hiding exactly the kind of decay the town’s code is designed to catch. That’s the difference between looking at a roof and actually reading it.
Our Roof Inspection team is dispatched locally. Scheduling is coordinated from the brand’s Los Angeles office, but the boots on your roof are local to the Peninsula and familiar with Portola Valley’s terrain and codes. No third-party subcontractor roulette. When we say a technician will be at your home, that’s who shows up.
Styles & brands we work with
Roof Estimate in Portola Valley
A roof estimate in Portola Valley should never begin with a vague number and a handshake. Here, a real estimate has to account for the town’s WUI code, which means a tear-off that might run $18,000 in San Jose can run $26,000 to $34,000 in Portola Valley once Class A materials, code-compliant underlayment, and WUI-specific detailing are priced correctly. We put that number in writing before any work starts. No door-knock adjustments, no “we found something” phone call that changes the deal.
What a Written Estimate Includes
Our estimates list the materials by manufacturer, the underlayment type, the drip edge spec, the nail pattern, and the waste factor. For a Portola Valley home, that means you’ll see exactly which Class A assembly we’re proposing and why it meets the WUI ordinance. Nothing lumped into “miscellaneous.” You can hand that estimate to the town, to your insurance agent, or to another roofer and it will hold up.
When to Get an Estimate Here
If your roof is original to a 1960s or 1980s custom build, or if it has wood shake under a newer layer of composition, get an estimate now, before the next rainy season. Portola Valley homes sit under heavy tree canopy. What looks fine from the street is often hiding end-of-life flashing at the valleys and a fire rating that died a decade ago. An estimate from us costs nothing and tells you where you stand.
Free Roof Inspection in Portola Valley
A free roof inspection in Portola Valley is the right starting point when you don’t know whether you need a repair or a full replacement. We’ll walk the roof, check the flashing, the underlayment at penetrations, the eave and vent detailing, and the decking where accessible. Then we’ll give you a straight answer, in writing, with photos. If the roof is fine, we’ll tell you it’s fine. We won’t manufacture a problem to create a sale.
What We Document During the Inspection
For Portola Valley specifically, we document the fire rating of the current assembly, since that’s what the town’s WUI ordinance hinges on. We check whether the roof has a Class A rating that’s still valid, or whether a previous overlay buried wood shake that voids the rating. We also check the nail pattern against wind-load requirements for the Santa Cruz Mountains exposure. That documentation is yours to keep, and it’s what an insurance adjuster will ask for after a windstorm.
Inspection for Insurance and Documentation
After a heavy wind event off the mountains, a Portola Valley homeowner often needs a roof inspection that can stand up to an insurance claim. Our written report notes the installed roof’s rating, the condition of flashing and drainage, and any storm-related damage, with photos and a dated signature. If the roof wasn’t installed to rated spec, we document that too, because it matters for the claim. Call (669) 238-2101 and we’ll get it scheduled.
Trusted Brands We Service in Portola Valley
We install and inspect roofing from manufacturer lines that carry genuine Class A fire ratings, including GAF, CertainTeed, and Owens Corning. For Portola Valley homes that want a natural, fire-resistant look, we also work with Boral steel and composite products. We stock common materials for the Peninsula market, which means a repair on an Alpine Road estate doesn’t wait on a truck from Sacramento. When we specify a GAF Timberline HDZ or a CertainTeed Landmark shingle, you’re getting a product with a documented rating, not an off-brand approximation that might fail a WUI review.
Common Roof Inspection Problems We See in Portola Valley Homes
- Wood shake buried under composition. On 1970s custom homes, a previous owner often roofed over original wood shake to save money. The result: no Class A rating, a hidden fire load, and a roof that can’t pass a WUI inspection. We find this on homes all through Portola Valley Ranch.
- Failed flashing at complex valleys. Low-pitch custom roofs with multiple intersecting planes concentrate water at valleys, and 40-year-old flashing doesn’t survive Santa Cruz Mountain winters. These leaks show up in the first heavy rain, and they’re often blamed on “the storm” when the real cause is age.
- Missing or degraded fire-resistant underlayment. The WUI code requires specific underlayment at eaves, valleys, and penetrations. Homes that were reroofed before the ordinance tightened, or by crews who didn’t know the local code, are frequently missing it entirely. The shingles look fine. The fire protection isn’t there.
- Drainage problems on flat roof sections. Many Portola Valley estates have flat or near-flat sections over garages or breezeways. Clogged scuppers and deteriorated modified-bitumen seams on those sections cause ponding water that eventually finds its way inside. A visual-only inspection from the ground never catches this.
See the difference
Before
After
Before
After
Before
AfterPricing for Roof Inspection in Portola Valley, CA
For Portola Valley, you can expect these numbers. A free roof inspection is exactly that: free, with photos and a written report. A more detailed documented inspection, the kind you’d want before a home purchase or an insurance claim, runs $250 to $450 depending on roof size, number of levels, and whether we’re accessing steep pitches. A roof estimate for repairs or replacement is always free. What affects the price on our end: roof complexity, number of roof planes, access considerations on hillside lots, and whether we need to bring in a drone for areas that aren’t safe to walk. We’ll tell you the price before we start. That’s the standard. Call (669) 238-2101 for your free estimate.
We Also Serve Cities Near Portola Valley
Our inspection crews cover the full Peninsula corridor. If you’re in Portola Valley, we’re already working your neighborhood, and we also handle roof inspections in Stanford, Los Altos, Atherton, and Palo Alto. Same crew, same written standard, same guarantee.
Serving Portola Valley, CA - Our Local Coverage Area
We’re based in the Portola Valley 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 Inspection in Portola Valley
Yes. Portola Valley enforces a Wildland-Urban Interface ordinance, and any reroof has to pass a WUI inspection that verifies the installed roof meets Class A fire-rating requirements, including the underlayment, eave detailing, and vent construction. The town’s inspector checks the specific assembly, not just the finished look. A roof that doesn’t pass means you’re not done until it does. That’s why we specify code-compliant materials from the first estimate. Call (669) 238-2101 for a written estimate that already accounts for WUI compliance.
The only way to know is to look at the installation itself: the nail pattern, the number of nails per shingle, and whether the roof was ever installed to rated spec for the Santa Cruz Mountains exposure. A visual inspection won’t tell you this. Our documented inspection checks the roof assembly and notes whether it matches the wind-load requirements in Portola Valley’s building code. If it doesn’t, that’s essential information. It affects insurance claims after a storm. Get the documentation by calling (669) 238-2101.
Yes, and in Portola Valley it often makes the difference between a paid claim and a denied one. Insurance adjusters ask for documentation that the roof was installed to the wind-load and fire-rating standards that applied at the time. If a previous install didn’t meet those standards, the claim gets complicated fast. Our inspection report documents what’s on the roof, what failed, and what the code required. That paper trail is what you need. Call (669) 238-2101 to schedule an inspection after the next storm.
The most common failure is missing or degraded Class A underlayment at valleys, eaves, and penetrations. A lot of Portola Valley homes built in the 1960s through 1980s had wood shake roofs that were later covered with a layer of composition, which buried the fire risk instead of removing it. That roof no longer has any valid fire rating, and it won’t pass a WUI inspection. We also see vent styles and eave details that predate the current ordinance. Those get flagged in our documented inspection. Call (669) 238-2101 to find out what’s actually on your roof.
Yes, especially on the flat and low-pitch sections that are common on Portola Valley custom builds. The Santa Cruz Mountains get heavy winter rain, and a roof that doesn’t move water quickly will pond, back up under flashing, and leak. Our inspection checks scuppers, downspouts, valley drainage, and the slope at every roof section. A report that skips drainage isn’t worth the paper it’s printed on in this town. Call (669) 238-2101 to schedule yours.
On a 1970s Estate Near Portola Valley Ranch
On a recent inspection, our crew found original wood shake under a layer of composition that had lost its Class A rating. We documented the missing fire-resistant underlayment at valleys and penetrations, then specified a full tear-off with GAF Timberline HDZ architectural shingles, code-compliant drip edge, and new venting. The town’s WUI inspection passed on the first visit. That’s not luck. That’s knowing the code before we write the estimate.
If you need a roof inspection in Portola Valley, call (669) 238-2101. You’ll speak to a live person, get a straight answer, and have a written price before anything starts. Travis Oakley stands behind the work, and the 365-Day Done Right Promise stands behind every inspection we do. Free estimates, documented reports, and no games.
Written by Travis Oakley, Owner at Brennan Roofing Co San Jose, serving Portola Valley with The Garrison Standard.