Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterFast, Reliable Roof Replacement Across Los Altos
Roof replacement in Los Altos most often comes down to one thing: code-mandated Class A fire ratings on homes built before fire standards existed. A full tear-off and replacement on a typical 1,800 to 2,400 square foot Los Altos ranch runs between $22,000 and $48,000 depending on material choice, deck condition, and whether the original skip-sheathing is still sound enough to re-nail. We’re Birchbark Roofing, led by Erik Lindgren, and we walk every Los Altos job the same way: inspect first, price in writing, then tear off. Call (424) 766-4937 for a free estimate and a written line-item quote before anyone climbs onto your roof.
Why Birchbark Roofing Is Los Altos’s Preferred Roof Replacement Company
Los Altos homeowners keep a careful eye on what happens around their house, and we plan for that. Our background-checked, uniformed technicians arrive with shoe covers at the door, drop cloths through the hallway and any interior access path, and a cleanup photo before the crew leaves. Erik Lindgren and the team know the older ranch grid off San Antonio Road, the streets fanning out from downtown toward the foothills, and the difference between a roof that looks worn and one that has decades left.
We are part of the Cedarwell family of independently owned roofing businesses, a network that has held a 365-Day Done Right Promise since 2000. If the work isn’t right, we make it right. That guarantee is stamped on every Los Altos roof replacement we perform, from north Los Altos properties near the Los Altos Hills border to homes south of Foothill Expressway. Scheduling and dispatch for this area run through our San Francisco Bay Area office, and our crews work Los Altos neighborhoods every week.
When a homeowner calls about a shake roof failing inspection or a deck that’s spongy at the eaves, the conversation starts with what we’ll actually find when we open it up. Not a guess. A process.
Roof Installation in Los Altos
Roof Installation in Los Altos usually means a full system replacement on a 1950s or 1960s ranch where the original deck, underlayment, and flashings are all aging out at the same time. New construction and re-decks happen too, but the dominant job here is removing old wood shake or spent composition and installing a Class A rated system that meets current Title 24 and local fire code. A straightforward composition roof installation on a low-to-moderate pitch Los Altos home runs $22,000 to $34,000; architectural shingle systems with upgraded underlayment land between $28,000 and $42,000.
Full Tear-Off and New Decking
Most Los Altos ranches built between 1950 and 1975 used skip-sheathing or 1×6 spaced deck boards, not solid plywood. When we strip the old roof, we check every board. If the sheathing is sound, we re-nail and add solid deck where code now requires it. If too much is split or rotted, that’s a written allowance in your contract, not a surprise.
New Construction and Additions
For new builds and second-story additions in Los Altos, roof installation is sequenced with the framing and stucco crews. We coordinate underlayment, flashing, and ventilation with the general contractor’s timeline, and pull the roofing portion of the permit with passing inspections documented before we call the job done.
Roof Replacement Contractor in Los Altos
A Roof Replacement Contractor in Los Altos has to understand what happens when a mature valley oak has been dropping twigs and leaf litter across the same roof for thirty years. Debris dams the low-slope gutters, holds moisture against the fascia, and rots edge framing that a like-for-like shingle swap never addresses. That’s why we inspect the perimeter and valley flashing before we ever write a quote. A typical full replacement with new flashing, drip edge, and Class A composition on a Los Altos home costs $26,000 to $44,000; if you’re moving from shake to standing seam metal or concrete tile, plan for $55,000 to $85,000.
Shake-to-Class A Code Compliance
Los Altos has one of the densest concentrations of original wood shake roofs left in the Bay Area. California fire codes now effectively require these to be replaced with Class A fire-rated material, which is why code compliance, not storm damage, drives most roof replacements in this city. Our team handles the permit path with the town, the tear-off, the deck upgrade if required, and the inspection sign-off.
Deck Replacement and Framing Repair
Opening a 1960s roof in Los Altos frequently turns up undersized ridge framing or cracked rafters at the cut. We flag it, write a price for the repair, and get your written approval before we touch it. The repair becomes part of the same permit and inspection, not a change order that explodes the quote mid-job.
Trusted Brands We Service in Los Altos
Birchbark Roofing works with materials from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Los Altos homes under mature oaks, we routinely quote GAF Timberline HDZ with algae-resistant granules and Atlas StormMaster with color-matched zinc ridge strips. Parts and shingles ship fast from regional supply yards, so a Los Altos tear-off doesn’t sit exposed waiting on materials. Roof Replacement projects here get the same written pricing and 365-Day Done Right Promise whether you choose architectural composition, concrete tile, or standing seam metal.
Common Roof Replacement Problems We See in Los Altos Homes
- Original skip-sheathing that can’t be re-nailed. On 1950s and 1960s ranches throughout Los Altos, the spaced board deck was never designed for modern shingle nailing patterns. Before we quote anything, we inspect the deck condition from the attic side and write a partial sheathing allowance into the contract.
- Moss and algae on north-facing slopes. Los Altos sits in a fog belt transition zone where marine layer moisture lingers on rooftops longer than in Sunnyvale. Shaded roofs under the old oak canopy grow moss within a few years, so we spec algae-resistant shingles and zinc strips as standard on these homes, not as an upsell.
- Debris-dammed low-slope gutters at the eaves. The mature liquid amber and valley oak trees that line older Los Altos streets drop fine twigs and leaf litter that hold water against the fascia. That rots the edge framing behind the gutter, which a straightforward shingle swap never catches.
- Re-roofs that skipped the permit on the last cycle. We occasionally open a Los Altos roof and find composition layered over shake with no permit record. That means the base layer was never rated for the current system, the nailing pattern hasn’t been inspected, and the whole assembly needs to come off before we rebuild to code.
Pricing for Roof Replacement in Los Altos, CA
Here’s what you’re looking at in real Los Altos dollars, before any tree work or framing surprises. A 1,400 to 1,800 square foot ranch with a simple 4:12 roof and architectural composition: $22,000 to $30,000. Same house with deck replacement and new fascia: $30,000 to $42,000. Concrete tile on a 2,400 square foot two-story: $48,000 to $68,000. Standing seam metal: $55,000 to $85,000. What moves the number: deck condition after tear-off, roof pitch and cut count, accessibility for scaffolding, and whether a gutter or skylight replacement rides along. You’ll see your exact number in writing before work starts, and our 365-Day Done Right Promise covers what we install. Call (424) 766-4937 for a free estimate.
We opened a low-slope ranch roof off a mature-oak street in the older Los Altos grid and found the original skip-sheathing was too far gone to re-nail. Once the decking was stripped, we added a written allowance for partial sheathing replacement and a full ice and water shield at the valleys before resetting the drip edge and starter strip. Our crew flagged undersized ridge framing at the cut, priced and approved the upgrade in writing before touching it, and reset the ridge vent so the attic finally pulled air. The homeowner now has a Class A architectural shingle system with zinc ridge strips and algae-resistant shingles, which is the standard package we quote on these shake-to-Class A rebuilds.
We Also Serve Cities Near Los Altos
Beyond Los Altos, our crews cover Mountain View, Stanford, Palo Alto, and Menlo Park, including homes that border the Los Altos Hills ridgeline. If you’re in one of those areas and need a detailed Los Altos style inspection-first roof replacement quote, call us at (424) 766-4937. We schedule free estimates across the mid-Peninsula every week.
Serving Los Altos, CA - Our Local Coverage Area
We’re based in the Los Altos 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 Replacement in Los Altos
Yes. California fire code now effectively requires Class A fire-rated roofing on homes with wood shake, and you can’t install a Class A assembly over shake without creating a fire rating gap and a permit failure. The shake has to come off, the deck has to be inspected, and the new system goes on from the sheathing up. Call (424) 766-4937 and we’ll walk your specific roof before you pull the permit.
We inspect the roof from the attic and the exterior before we write your quote, so we catch most framing and sheathing problems up front. If tear-off reveals something no one could see, we stop work at that point, show you the condition, and put a written price in front of you for the repair. Nothing gets touched until you approve it. That’s the allowance process every Birchbark quote includes.
For most Los Altos homes, we recommend a Class A architectural composition shingle with algae-resistant granules and zinc or copper ridge strips to control moss on north-facing slopes. Brands like GAF Timberline HDZ and Atlas StormMaster hold up well under the combination of marine moisture and oak canopy shade that defines the older Los Altos grid. We’ll quote the exact system for your roof pitch and shade exposure.
It can. When your deck is open, the inspector will look at ventilation, fire rating, and nail pattern, and may require upgrades like added intake ventilation, solid sheathing at roof-to-wall connections, or ember-resistant vents. We plan for these in the quote rather than treating them as surprises. You’ll know the permit path and likely trigger items before tear-off begins.
Compare the line items, not just the bottom line. Ask whether the other bid includes a written sheathing allowance for a 1950s deck, ice and water shield at the valleys, new drip edge and fascia if yours is rotted, and the cost of the permit and inspections. If their number is lower because those items are missing, your price will move once the roof is open. Our quotes list every one of those items before we start, and the 365-Day Done Right Promise covers the finished system. Call (424) 766-4937 and we’ll walk through your roof and your quote line by line.
Written by Erik Lindgren, Owner at Birchbark Roofing, serving Los Altos since 2000.