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 Sunnyvale
Roof replacement in Sunnyvale means dealing with a very specific kind of house: the 1955 to 1975 ranch-style tract home built for Lockheed and early semiconductor workers. Most of these roofs are low-pitch, originally wood shake, and now well past their service life. We know them inside out, because we open them up every week. If your roof is failing, call (424) 766-4937 for a written estimate before any work begins.
Why Birchbark Roofing Is Sunnyvale’s Preferred Roof Replacement Company
Homeowners in neighborhoods like Lakewood Village and along El Camino Real call us because we understand what a tear-off on a 60-year-old Sunnyvale ranch actually involves. Our crews work these homes daily. We know the shallow 2:12 to 4:12 pitches, the rotted skip-sheathing hidden under old shake, and the City of Sunnyvale re-roofing permit process that every proper job must pass. We also know your family is living in the house while we work. Shoe covers at the door, drop cloths through the hallway, and a photo of the completed clean-up before we leave are standard on every job, not optional extras.
Erik Lindgren, who leads Birchbark Roofing, built the company around a simple idea: prove the care in writing. That means a written price in dollars before any work starts, and the 365-Day Done Right Promise on every replacement we perform. If the work isn’t right, we make it right. A live person answers our phone 24/7, so when you call about your Sunnyvale roof, you reach a human who can help, not a voicemail tree.
Roof Installation in Sunnyvale
Roof Installation in Sunnyvale on a 1955 to 1975 ranch starts with one hard truth: you can’t just nail standard three-tab or architectural shingle over a low-pitch deck and call it code-compliant. California code requires double-layer underlayment or a modified bitumen system on slopes of 2:12 to 4:12, which most older Sunnyvale homes have. We write that into the quote from day one, so the price you see is the price that passes inspection. A full tear-off and re-roof on a typical 1,400 to 1,800 square-foot Sunnyvale ranch runs between $18,000 and $31,000 depending on decking condition, which we assess before quoting.
Decking and Dry Rot Assessment
Before any new roofing goes down, we inspect what’s underneath. On a 1960s ranch, that often means skip-sheathing boards that have spent 60 years absorbing UV and winter storm moisture. We include a per-sheet decking replacement price in your written contract, so if we find rot, you approve the added framing in writing before we touch it. No mid-job surprises with a handshake.
Low-Pitch Systems Done Right
Shallow slopes leak at valleys and pipe penetrations during winter atmospheric-river events, even when they look fine through the dry season. We install double-layer underlayment or modified bitumen per code, then lay down architectural shingles. The result is a roof that handles Sunnyvale’s seven-plus months of intense sun and the winter deluge that follows.
Roof Replacement Contractor in Sunnyvale
As a Roof Replacement Contractor working Sunnyvale’s older ranch homes, we do one thing differently from the start: we assume the roof deck is compromised until proven otherwise. That’s not pessimism, it’s pattern recognition. Nearly every original wood shake tear-off on a 1960s Sunnyvale home reveals at least some rotted skip-sheathing, and many reveal a lot. A roof replacement on a home of this age typically lands between $22,000 and $36,000 with decking replacement included, depending on how much framing needs to be rebuilt. You’ll see the exact number in writing before we start.
Wood Shake Replacement
Original wood shake on a Sunnyvale ranch is out of compliance with California’s Class A fire-rating requirement. Patching it fails code and leaves the home effectively uninsurable. We tear off the old shake, rebuild the decking where rot has taken hold, and install a Class A architectural shingle system that meets the City of Sunnyvale inspection standard.
ADU Roof Tie-Ins
Sunnyvale’s ADU boom means we regularly tie new shed or gable rooflines into 50-to-60-year-old existing decks. The problem: pulling back the old shake often exposes rotted skip-sheathing that was never in the original scope. We catch that during inspection, write it into an allowance in the contract, and get written approval before any new framing goes up.
Trusted Brands We Service in Sunnyvale
We work with materials from Atlas, Tamko, Boral, and GAF, and we stock locally for Sunnyvale customers so scheduling doesn’t stall waiting on a truck from out of state. Whether you choose GAF architectural shingles for a classic ranch profile or Boral lightweight roof tile for a heavier, stone-look finish, we’ll give you a written line-item quote with the brand and color specified before any work begins. If you have a preference, tell us when we inspect, and we’ll price it accordingly.
Common Roof Replacement Problems We See in Sunnyvale Homes
- Rotted skip-sheathing under original shake. UV and winter atmospheric-river moisture destroy the spaced boards under old shake roofs. We rebuild roughly a third of the decking on a typical tear-off of a 1960s Sunnyvale ranch before new shingles can go down.
- Non-compliant single-layer underlayment on low slopes. Shallow 2:12 to 4:12 roofs need double-layer underlayment or modified bitumen. Single-layer installs leak at valleys and pipe penetrations during concentrated winter storms, even after looking fine through the dry season.
- Fire-rating failures on old wood shake. Original wood shake doesn’t meet California’s Class A fire-rating requirement. The only compliant fix is full replacement with a rated system, not patching.
- ADU tie-in surprises. When a new shed or gable roofline ties into a 50-year-old deck, the old structure often reveals rotted boards that were never flagged in the original scope. Our written decking allowance covers this before it becomes a dispute.
Pricing for Roof Replacement in Sunnyvale, CA
Here’s what you should expect to pay in Sunnyvale’s market. A straight composite shingle replacement on a modest 1,200 square-foot ranch runs $16,000 to $24,000. A larger 1,800 square-foot home with decking replacement and architectural shingles typically lands between $25,000 and $36,000. If you’re tying in an ADU roofline, add $4,000 to $9,000 for the framing and deck rebuild that almost always follows. What moves the number most is decking condition, which we assess before quoting, not after we start. Call (424) 766-4937 for a free estimate with a written price in dollars before any work begins.
We Also Serve Cities Near Sunnyvale
Our crews work the entire west Valley, so if you’re in Mountain View, Santa Clara, Cupertino, or Los Altos, we can help there too. The same written pricing and 365-Day Done Right Promise apply. You can learn more about our Roof Replacement service or see how we handle Roof Replacement in Sunnyvale specifically with local code and permit knowledge.
Serving Sunnyvale, CA - Our Local Coverage Area
We’re based in the Sunnyvale 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 Sunnyvale
Because Sunnyvale’s 1955 to 1975 ranch homes have low-pitch roofs of 2:12 to 4:12, and California code requires double-layer underlayment or modified bitumen on those slopes. Standard single-layer shingle installation is not code-compliant, and a quote from a steeper-roof market won’t include that extra material and labor. Our Sunnyvale quotes always do. Call (424) 766-4937 and we’ll explain the exact line items.
Yes. The City of Sunnyvale requires a re-roofing permit and final inspection for full replacements. We pull the permit, manage the inspection scheduling, and make sure the job passes on the first walk-through. It’s part of our standard process, not an add-on.
Almost certainly. We tore the original shake off a 1962 ranch off Mathilda Avenue and found skip-sheathing so rotted that we had to rebuild about a third of the decking before laying down any new shingle. Because our contract included a written decking allowance and a per-sheet replacement price, the homeowner approved the added framing in writing the same day, and we passed the city inspection on the first try. You’ll have the same written protection.
Look at three things: the underlayment spec for low-pitch decks, the decking allowance, and whether the price is written and fixed before work starts. Our estimates always specify code-compliant double-layer underlayment or modified bitumen, include a per-sheet decking replacement number, and come as a written dollar amount. If another bid omits any of those, the comparison isn’t apples to apples.
Sometimes. On older Sunnyvale ranches, opening the roof can turn up rotted framing that needs replacement before new roofing goes down. Any plumbing or electrical penetrations that are damaged get flagged during inspection, and we bring in licensed trades if needed, with written approval from you first. Nothing gets touched without your sign-off.
If your Sunnyvale roof is at the end of its life, we’ll inspect it, explain exactly what needs to happen, and hand you a written price before any work starts. Call (424) 766-4937 to schedule your free estimate.
Written by Erik Lindgren, Owner at Birchbark Roofing, serving Sunnyvale and the surrounding west Valley.