Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Cupertino
Cupertino homeowners call us when a roof needs to do more than keep rain out. In this city, a roof often carries solar panels, battery conduits, and the architectural lines of a modern rebuild. We’re Brennan Roofing, and our Roofing Company team handles installation, replacement, repair, and inspection across Cupertino with written pricing before any work starts. Every job is backed by the 365-Day Done Right Promise, and a live person answers our phone around the clock. Call (361) 320-9467 for a free estimate.
Cupertino’s housing stock tells a specific story. Mid-century ranch and Eichler homes from the 1950s through 1970s dominate neighborhoods like Monta Vista and Garden Gate, and their original flat or low-slope roofs were built for a gentler rainfall era. When an atmospheric river rolls through the Santa Clara Valley, undersized drains pond water, and that water finds every seam in the old tar-and-gravel. We know these roofs because we work on them weekly, not occasionally.
Why Brennan Roofing Is Cupertino’s Preferred Roofing Company
Cupertino homeowners have been burned by roofers who no-show, shift the price at the door, or leave the job site looking like a construction zone. We built our reputation here on the opposite behavior. Every job gets a written price before any work begins, and that price does not move at the door. The technicians who show up are background-checked and uniformed, so you know exactly who is on your roof.
Our work in Cupertino includes re-roofing Eichlers in Garden Gate, replacing ridge and valley flashing on ranch homes near De Anza Boulevard, and inspecting flat roofs along Stevens Creek before solar installs. Homeowners tell us the same thing after we leave: the crew showed up when they said they would, the price matched the paper, and the site was cleaner than when we arrived.
The Garrison Standard is the operating discipline behind every job. It means a written price, a background-checked crew, and a full-year guarantee in writing. Travis Oakley, who leads Brennan Roofing, holds every Cupertino job to that standard. If a repair fails within the guarantee period, we come back free. That’s the promise, in writing, no fine print.
Roof Maintenance in Cupertino
Roof Maintenance in Cupertino means getting ahead of the flat-roof drainage problems that show up after the first winter storm. On a mid-century Eichler or ranch home, we clear scuppers and drains, inspect flashing around roof penetrations, check the membrane for alligatoring or cracking, and document what we find with photos. A Cupertino homeowner with an older flat roof should have this done before the November rain window opens, not after water is already ponding in Monta Vista.
Drain and Scupper Cleaning
Flat roofs in Cupertino fail at the drains first. Original drains on 1950s and 1960s Eichlers are undersized for today’s rainfall intensity, so leaves and debris turn a small problem into standing water. We clear every drain and scupper, test the flow with water, and flag any undersized drain that needs upsizing before it ruins the membrane underneath.
Flashing and Penetration Inspection
Solar arrays, vent pipes, and skylights all create roof penetrations, and the flashing around each one is where water gets in. During a maintenance visit, we physically lift and inspect each flashing point, reseal where needed, and replace any rusted or cracked flashing. On a solar-ready roof, we also verify that the penetrations are documented for the homeowner’s PV and battery rebate paperwork.
Typical roof maintenance in Cupertino runs $250 to $600 depending on roof size, accessibility, and how much debris has accumulated. The estimate is free, and the price is on paper before we touch the roof.
Roof Coating in Cupertino
Roof Coating in Cupertino is a flat-roof solution that extends the life of an older membrane while improving solar reflectivity. We apply elastomeric coatings to built-up and tar-and-gravel roofs that are structurally sound but aging, sealing hairline cracks and restoring UV resistance. A homeowner with a 1960s ranch flat roof that is not yet ready for a full tear-off can often buy five to eight more years with a proper coating, at a fraction of replacement cost.
Cool-Roof Elastomeric Coating
Cupertino’s dry summers bake flat roofs, and a white or light-gray elastomeric coating reflects heat instead of absorbing it. That lowers the roof surface temperature and reduces cooling load inside the house. We prep the surface, repair any failed seams, and roll on the coating to manufacturer spec. The result is a monolithic membrane with no exposed seams for water to find.
Solar-Ready Coating and Drainage Prep
When a homeowner plans to add PV panels, the coating choice matters. We use coating systems rated for solar-ready blue-roof documentation, and we address drainage before coating begins. In Garden Gate, that often means upsizing original drains and adding overflow scuppers so a coated roof never has to hold standing water against the membrane.
Roof coating in Cupertino typically runs $3,500 to $8,000 for an average flat roof, including surface prep, minor seam repair, and two coats. Larger roofs with ponding issues or extensive prep run higher. Call (361) 320-9467 for a free estimate and a written line-item quote.
Trusted Brands We Service in Cupertino
We install materials from manufacturer lines including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Cupertino’s flat-roof and solar-ready work, we commonly recommend GAF’s TPO and PVC membrane systems for their reflectivity and weld-seam reliability, Atlas shingles for steep-slope residential work, and Tamko underlayment lines where ice and water shield performance through the valleys matters on Eichler roofs. We stock local inventory for Cupertino jobs so replacements and repairs do not wait on a distribution shipment from out of state. We explain the real difference between these brands in plain English, because the right material for a pitched roof is not the right material for a ponding-prone flat roof.
Common Roofing Company Problems We See in Cupertino Homes
- Ponding on flat roofs after atmospheric rivers. Original drains on 1950s and 1960s Eichlers cannot move water fast enough during intense winter storms, and standing water deteriorates the membrane within a couple of seasons. We fix this by upsizing drains and adding overflow scuppers, not by patching the membrane and hoping.
- Rotted decking hidden under old tar-and-gravel. Decades of slow leaks rot the plywood decking before any interior stain appears. During a tear-off, we expose it, replace the rotted sections, and lay down ice and water shield through the valleys so the new roof starts on a sound plane.
- Solar installs with undocumented penetrations. A panel array mounted on a membrane roof without proper flashing and without blue-roof documentation voids the roof warranty and stalls the solar rebate. We prep and document every penetration before panels go up.
- Architectural shingles ordered before the PV layout is locked. When a Cupertino homeowner orders shingles or membrane before the solar panel placement is final, the penetrations get re-cut and the schedule slips. We sequence the order so the roof and the solar plan land together.
Pricing for Roofing Company in Cupertino, CA
A full roof replacement on a standard ranch home in Cupertino runs $14,000 to $28,000, with Eichler flat roofs and architect-designed modern rebuilds typically landing between $22,000 and $45,000 depending on membrane system, drainage upsizing, and solar-ready prep. Roof repair work, such as flashing replacement or a limited membrane patch, runs $500 to $2,500. A Roof Inspection in Cupertino runs $250 to $450, which we credit toward any repair you approve. The single biggest price driver in Cupertino is drainage work: upsizing original drains and adding scuppers costs real money, and skipping it means a new membrane that fails in year two. We write the price down before any work starts, and it does not move. Call (361) 320-9467 for a free estimate.
We Also Serve Cities Near Cupertino
Our crews serve Cupertino and the surrounding communities, including Saratoga, Sunnyvale, Mountain View, and Santa Clara. Scheduling and dispatch are coordinated from our San Francisco Bay Area office, and the same Roofing Company in Cupertino standard applies to every neighboring job. If your home is in one of these cities, call (361) 320-9467 and we will schedule a free estimate.
Serving Cupertino, CA - Our Local Coverage Area
We’re based in the Cupertino 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 Roofing Company in Cupertino
Yes, most Cupertino flat roofs can support solar panels and battery backup, but only if the roof itself is prepared and documented for it. The key is blue-roof certification: a solar-ready roofing system where every penetration is flashed and documented so your PV and battery rebate paperwork does not hit a second inspection cycle. We prep the penetrations, use a membrane rated for solar photovoltaics, and hand you the documentation. Call (361) 320-9467 to talk through your roof and panel layout, and we will give you a free estimate.
Your Eichler roof ponds water because the original drains installed in the 1950s and 1960s were undersized for the rainfall intensity we see during atmospheric river events now. The roof structure was built for a gentler era, and modern storms overwhelm the drainage system. The fix is to upsize the drains and add overflow scuppers, which requires a roofing contractor who understands Eichler flat roofs specifically. Call (361) 320-9467 and we will inspect the drainage and give you a written price for the repair.
The lead time on a custom Cupertino roof with architectural glass and specialty finishes is usually 6 to 10 weeks from signed contract to installation start, and the schedule is driven by material lead times, not labor. Architectural shingles, specialty membrane systems, and custom metalwork all have factory production windows. We order materials only after the price is on paper and the PV layout is locked, because ordering before the penetrations are final means re-cutting and schedule slips. Call (361) 320-9467 to get a realistic timeline for your specific roof.
Yes, we coordinate directly with architects and designers on Cupertino modern rebuilds. The roof detail package on an architect-designed home includes fascia and soffit lines, membrane transitions, and drainage profiles that have to match the drawings exactly. We review the plans, flag any roofing detail that conflicts with the drainage or solar plan, and work through changes before they become change orders. Call (361) 320-9467 to set up a plan review with your design team.
We install GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. The nailing pattern matters more than homeowners expect: a shingle nailed in the wrong part of the nail strip will fail in the wind, and atmospheric river gusts expose that failure fast. We follow the manufacturer’s nailing pattern exactly, on every shingle, every time. Call (361) 320-9467 for a free estimate on any of these brand lines.
Written by Travis Oakley, Owner at Brennan Roofing, serving Cupertino and the surrounding Bay Area.






Before
After
Before
After
Before
After