Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Los Altos Hills
A full roof replacement in Los Altos Hills typically runs $22,000 to $55,000 depending on roofline complexity, decking condition, and the WUI fire-rated materials your permit requires. Most Los Altos Hills tear-offs take 4 to 7 working days once materials are on site, with final inspection scheduled the same week. We know this because we work the hills every week, not once a season. Call (424) 766-4937 and we’ll walk your roof with you, write down what we find, and hand you a fixed price before any work starts.
Every roof we replace in Los Altos Hills carries a specific local weight: the Cal Fire Very High Fire Hazard Severity Zone designation means your permit isn’t a formality. It rewrites the material spec, the venting detail, and the flashing approach. A contractor who quotes your address from a valley-floor playbook will miss part of that. We don’t.
Why Birchbark Roofing Is Los Altos Hills’s Preferred Roof Replacement Company
Los Altos Hills homeowners don’t hand their roof to a stranger. They hand it to someone who can name the oak on the corner, knows what the town’s tree preservation ordinance does to a roof valley, and has already pulled a permit under the current WUI chapter. That’s what Erik Lindgren and our crews bring to every Roof Replacement we run in these hills.
We’ve replaced roofs off Page Mill Road, along Moody Court, up behind the town hall on Fremont Road, and across the ridge near the 94022 and 94024 zip lines. Homeowners in this town ask hard questions about decking and Class A assemblies because they live with the same code book we do. Our answers are specific, and so is our paperwork: a written price in dollars before the first shingle comes off, shoe covers at the door, drop cloths through the hallway, and a clean-up photo before the crew rolls out.
Part of the Cedarwell family of roofing companies since 2000, Birchbark operates as an independently owned local outfit. That means our dispatch and scheduling run through the San Francisco Bay Area office, but the crew on your roof knows Los Altos Hills terrain, the permit counter at the town, and the inspectors who’ll sign off on your WUI details. Background-checked, uniformed technicians on every job. A live person answers the phone 24/7, because roofing questions don’t wait for business hours.
Asphalt Shingle Roof Replacement in Los Altos Hills
Asphalt Shingle Roof Replacement is the most common full re-roof we do in Los Altos Hills, and here it carries a WUI twist: the shingles themselves must be part of a Class A fire-rated assembly, and the underlayment and venting details have to satisfy ember-resistance requirements. For a typical Los Altos Hills home, an architectural asphalt shingle roof runs $24,000 to $42,000 depending on square footage, tear-off layers, and whether we’re re-sheeting decking. Most homes built from the late 1950s through the early 1990s hide at least one decking issue under the old shingles.
Architectural Shingles Hold Up Better on Hillside Exposure
We recommend architectural shingles on Los Altos Hills rooflines because the multi-plane geometry and wide overhangs put more stress on shingle edges than a simple ranch roof ever would. The heavier laminated construction resists wind lift on west-facing ridges that catch the afternoon Santa Cruz Mountain gusts. On homes with moss-prone north slopes, a raised-profile architectural shingle also dries faster than a three-tab once morning fog burns off.
When Decking Replacement Becomes Part of the Quote
Your tear-off will almost always expose at least some roof decking that can’t stay. Skip-sheathing from a late-1960s build, cupped and nail-sick boards from decades of fog moisture, or plywood delaminating around old vents. We write decking replacement into the contract as a per-sheet allowance, priced in dollars, so you approve any additional sheets in writing before we cut. No open-ended change orders.
New Roof Installation in Los Altos Hills
New Roof Installation in Los Altos Hills almost always means one of two things: a new custom build that needs a roof engineered into the frame, or a home old enough that a full re-roof is really a re-shell. For new construction on a hillside parcel, expect $35,000 to $70,000 or more depending on roofline complexity and the fire-rated assembly spec. For a re-shell of an older home, the range lands closer to $28,000 to $50,000. New construction also means the roof has to be coordinated with the framing crew, the stucco crew, and the town’s inspection schedule, not bolted on at the end.
WUI Code Shapes the Roof Before Framing Does
On a new build in Los Altos Hills, the roof design gets checked against the WUI chapter before the first truss is ordered. Class A assembly, ember-resistant soffit and eave venting, and ignition-resistant gutters or gutter guards. We work with your architect and the town plan reviewer so the roof we install is the roof your permit already approves. That saves rework and a failed inspection later.
Low-Pitched Mid-Century Plans Need Extra Care
The mid-century modern and California ranch plans that dominate Los Altos Hills were built for a different code era. Low-pitched planes drain slowly, and when we install a new roof on that geometry we pay close attention to underlayment laps, valley detailing, and edge metal. These aren’t details a flat-valley crew thinks about, because flat-valley roofs don’t ask for them. Yours will.
Trusted Brands We Service in Los Altos Hills
We install and stand behind materials from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, so you’re not locked into one brand’s product line. For Los Altos Hills jobs we typically recommend GAF or CertainTeed architectural shingles for their Class A rating performance and wide color range, with Atlas or Tamko offered when a homeowner wants a specific weight or texture. Because we run Los Altos Hills roofs every week, our suppliers keep the common profiles and flashings we need stocked locally, which keeps tear-off-to-inspection timelines tight. Whatever brand you choose, it’s backed by the 365-Day Done Right Promise: if the work isn’t right, Birchbark makes it right.
Common Roof Replacement Problems We See in Los Altos Hills Homes
- Oak-blocked valleys rotting under heritage trees. The town’s oak preservation rules block significant canopy trimming, so roof valleys under protected oaks collect a near-constant mat of leaf debris and tannin-laden moisture. Closed cut-valley flashing installed by a valley-floor roofer can fail within a few seasons here. We lean toward open-metal or woven copper valleys that shed debris instead of trapping it.
- Standard venting that fails the VHFHSZ ember check. Contractors from the valley floor routinely spec louvered gable vents or standard eave venting that doesn’t meet ember-resistance requirements in a Very High Fire Hazard Severity Zone. That triggers a permit re-inspection and rework. We install WUI-compliant soffit and eave venting the first time.
- Hidden decking damage on low-pitched mid-century planes. The ranch and mid-century homes that fill Los Altos Hills were built with 1×6 skip-sheathing or early plywood that fog and intermittent rain have worked over for 50-plus years. A bid that skips an inspection before quoting is a change order waiting to happen. We inspect, then price.
- Moss and algae eating north- and west-facing sections. The foothill fog regime means north and west roof planes stay damp longer than the south face. Moss thickens, holds moisture against shingle granules, and lifts edges. During tear-off those sections often show the worst decking rot. We address it at the decking layer, not by just laying new shingles over trouble.
Serving Los Altos Hills, CA - Our Local Coverage Area
We’re based in the Los Altos Hills area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Pricing for Roof Replacement in Los Altos Hills, CA
Here’s what we quote in Los Altos Hills today. Architectural asphalt shingle replacement on a mid-century ranch: $24,000 to $42,000. Full new-construction roof on a hillside custom home: $35,000 to $70,000. Re-roof with WUI-compliant venting and open-metal valleys added: $28,000 to $55,000 depending on roofline and decking condition. The three biggest cost movers are decking replacement sheets, valley re-detail, and whether your old venting needs to be brought up to VHFHSZ spec. You’ll see your exact number in writing before we start. Call (424) 766-4937 for a free estimate.
Written by Erik Lindgren, Owner at Birchbark Roofing, serving Los Altos Hills and the surrounding Bay Area foothills.






Before
After
Before
After
Before
After