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CertainTeed Roofing in Sunnyvale, CA | Brennan Roofing Co San Jose
We’re an independent roofing crew out of San Jose that services CertainTeed roofs across Sunnyvale every week. Most of our work here is CertainTeed sales & service on homes built between 1950 and 1980, where original wood shake is hitting end-of-life and needs a fire-rated replacement that passes Santa Clara County inspection. Call (669) 238-2101 for a written estimate before any work starts. You’ll get real numbers on paper, not a ballpark over the phone.
Why Sunnyvale Residents Choose Us for CertainTeed Service
We know CertainTeed’s product lines the way a mechanic knows a specific engine family. Landmark architectural shingles, Presidential Shake, Flintlastic SA membrane, Mountain Ridge slate-profile; we’ve torn off, repaired, and reinstalled all of them on Sunnyvale homes. Travis Oakley, our owner, learned the trade at Los Angeles Trade-Technical College and has worked South Bay roofs for years, from straightforward re-roofs in Willow Glen to full tear-offs on older Craftsman homes near The Alameda. He built this crew on a simple rule: tell you what’s actually wrong, price it in writing, and show up when we say we will.
We’re not a CertainTeed-authorized contractor. We’re independent, which means we recommend what’s right for the roof, not what a manufacturer program tells us to push. That said, we default to CertainTeed OEM parts on every CertainTeed roof we touch because mixing aftermarket ridge caps or underlayment with CertainTeed shingles causes premature granule shedding and peel-and-stick shear. We’d rather do it once, correctly, than save you forty dollars on a bundle of generic shingles that fail in three years.
Styles & brands we work with
Common CertainTeed Roofing Problems We Solve in Sunnyvale
- Granule loss on south-facing Landmark slopes. Sunnyvale’s dry summers mean prolonged UV exposure on south and west roof faces. CertainTeed Landmark shingles hold up well, but by year 12-15 on an unshaded south slope, we routinely see bald spots where granules have worn away and the fiberglass mat is showing. That’s a replacement, not a patch.
- Curling edges on shingles nailed over original wood shake. We see this constantly in Birdland and Serra. Someone in the 1990s nailed CertainTeed shingles directly over 1950s wood shake without addressing the skip sheathing underneath. The shingles curl at the edges, lose granules, and start leaking within a decade. The fix is a full tear-off to the rafters, new CDX plywood, then new CertainTeed underlayment and shingles.
- Flintlastic membrane failures on Eichler flat sections. Eichler homes with flat or low-slope roofs need a self-adhered SBS membrane like CertainTeed Flintlastic SA. When the original tar-and-gravel or torch-down fails, or when a previous contractor used a cheaper aftermarket membrane, we see blisters and seam splits. Flintlastic SA installed over clean, dry decking fixes it properly.
- Leaks around flashing on low-pitch composition roofs. Sunnyvale’s 1950s-1970s housing stock runs heavily to low-pitch roofs, which drain slowly during winter rain. Step flashing and pipe boots that were marginal when installed become leak points. We replace flashing with new metal and reseal with CertainTeed-compatible sealants.
- Underlayment turned to dust under old wood shake. In fog-adjacent neighborhoods like Birdland, moss grows on original wood shake and traps moisture against the underlayment. By the time we’re called, the felt has often disintegrated to powder. You can’t spot-repair that. The deck has to come off and new underlayment goes down before any shingle touches it.
CertainTeed Service in Sunnyvale: What Local Conditions Mean for Your Equipment
Here’s what most roofing pages about Sunnyvale won’t tell you: the city’s Wildland-Urban Interface fire code applies to most hillside-adjacent neighborhoods, including Serra and Birdland. Every re-roof in the WUI zone must use at least Class A fire-rated materials. CertainTeed Landmark shingles meet that rating, but only if the roof system underneath is sound. If your original wood shake underlayment has disintegrated and the plywood deck is heat-rotted, the fire rating on the new shingles is void. The inspector will fail the job. So the “cheap” option of laying new shingles over old shake isn’t just bad practice here; it’s a code violation waiting to happen. That’s why we pull everything down to the rafters on most Sunnyvale re-roofs. New CDX plywood, DiamondDeck underlayment, SwiftStart starter strips, and Landmark Pro shingles. The roof passes inspection, and it stays granule-tight through the summer heat.
CertainTeed Models & Products We Service in Sunnyvale
We work on the full CertainTeed roofing lineup, but in Sunnyvale we see four product families most often:
- Landmark architectural shingles – the workhorse for 1960s-1970s ranchers. We stock common colors locally for fast turnaround.
- Presidential Shake shingles – the premium option on homes where the original wood shake look matters. Thick, heavy, and dramatically different from a standard architectural shingle.
- Flintlastic SA self-adhered SBS membrane – the right system for Eichler flat and low-slope sections. We keep rolls on hand for emergency patches and full flat roof replacements.
- Mountain Ridge slate-profile shingles – an occasional choice for homeowners who want the slate silhouette without the structural load.
For parts, we use CertainTeed OEM across the board: Landmark shingles, Flintlastic rolls, SwiftStart starter strips, DiamondDeck underlayment. We match from current production batches so color and granule consistency hold up over time. Aftermarket parts on a CertainTeed roof are a false economy, and we won’t do it.
See the difference
Before
After
Before
After
Before
AfterCertainTeed Service Pricing in Sunnyvale
What you’ll pay depends on what’s actually under the existing roof. A straightforward Sunnyvale Roof Repair with Landmark replacement on a 1,200-square-foot rancher with sound decking typically runs $12,000 to $18,000. A full tear-off that requires new CDX plywood throughout adds $3,500 to $6,000 depending on deck condition. Flintlastic SA membrane work on an Eichler flat section runs $8 to $12 per square foot installed. Presidential Shake upgrades run 40-60% above Landmark pricing. Every estimate we write is a line-item number on paper before any work starts. That price does not move at the door. Call (669) 238-2101 and we’ll walk the roof with you, explain what you’re looking at, and hand you a written number.
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 – CertainTeed Roofing in Sunnyvale
No. The shingles themselves may be Class A fire-rated, but the fire rating applies to the roof assembly, not just the top layer. If the original wood shake underlayment has disintegrated or the deck underneath is compromised, the assembly doesn’t meet code and the inspector will fail it. The deck and underlayment have to be brought up to standard before the shingles go on. Call (669) 238-2101 and we’ll tell you what your specific roof needs.
We can sometimes replace a single slope if the deck is sound, the underlayment is intact, and the color match is available from current production batches. But at 10 years old in Sunnyvale, granule loss on the south slope is often a sign that the entire roof is aging faster than expected. We’ll give you an honest read on whether a patch makes sense or whether you’re better off waiting and doing the whole roof once. Either way, the estimate is written and free.
Yes. Flintlastic SA is our standard for Eichler flat and low-slope sections. We repair seam splits, blisters, and flashing failures, and we do full membrane replacements when the existing system is beyond patching. We stock Flintlastic rolls locally, so turnaround is fast. Call (669) 238-2101 for a written quote.
If you want the heavy shake look without the fire hazard of real wood, Presidential Shake is the right product. It’s a laminate shingle with a deep, dimensional profile that reads as wood shake from the street. It costs 40-60% more than Landmark, but for a Sunnyvale home in the WUI zone where real wood shake won’t pass inspection anyway, it’s the only way to keep that architectural look. We’ll show you samples and give you a written number for both options.
An authorized contractor is bound by the manufacturer’s program requirements, which can limit how they diagnose and what they replace. We’re independent. If a CertainTeed product has a genuine manufacturing defect, we’ll document it and help you file the claim. But we’ll also tell you plainly if what you’re dealing with is an installation issue or a deck problem that no manufacturer warranty will cover. You get a straight answer either way. Call (669) 238-2101 and tell us what you’re seeing.
Service Areas Near Sunnyvale
We serve Sunnyvale and the surrounding South Bay, including Sunnyvale service area neighborhoods like Serra, Birdland, and Lakewood. We also run crews to CertainTeed service in Redwood City, CertainTeed service in San Jose, Palo Alto, and Union City.
Book Your CertainTeed Service in Sunnyvale Today
Tell me what you’re seeing and I’ll tell you what it actually means. That’s the short version of how we work. Call (669) 238-2101 and we’ll schedule a time to walk your roof, answer your questions, and put a written price in your hand before any work starts.
Written by Travis Oakley, Owner at Brennan Roofing Co San Jose, serving Sunnyvale and the South Bay since 2000.