Architectural shingles
Metal roofing
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Sunnyvale
If your Sunnyvale roof has reached the end of its life, we can help you sort out what comes next without pressure. We work throughout Sunnyvale, from the ranch tracts off Mathilda Avenue to the infill townhomes near Peery Park, and we know how this city’s housing stock ages. Most of what we see here isn’t pitched shingle work. It’s 1950s and 1960s low-slope roofs that were built for a different era of drainage and never expected solar panels on top. Getting a Sunnyvale replacement right starts with understanding that. Call (855) 473-8840 to schedule your free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Why Sunnyvale Homeowners Call Sunstone Roof Repair for Roof Replacement
Homeowners in Sunnyvale tend to be research-minded, and that suits how we work. We inspect first, tell you plainly whether you need a full replacement or a targeted repair, and put the diagnosis in writing before any number gets discussed. That standalone inspection matters because a lot of roofs here get quoted for replacement when the actual failure is drainage. We’d rather find that out with you than sell around it.
Our technicians have up to 12 years of experience, and they’ve worked across the mix of built-up tar, wood shake, and shingle systems common on Sunnyvale’s postwar homes. We’re licensed and insured, and every estimate is a written line-item quote with fixed pricing and no change orders. If permits are involved, we pull them and see the inspections through.
Response to Sunnyvale is straightforward. When you call, we book an inspection at a time that works for you, and crews are dispatched Sunday through Friday, 7am to 7pm. Same-day service is often possible on active leaks. Our familiarity with the corridor between the El Camino Real frontage and the downtown blocks means we’re not learning your street on your dime.
Styles & brands we work with
- Architectural shingles
- Metal roofing
- Tile roofing
- GAF
- Owens Corning
- Flat & low-slope
Asphalt Shingle Roof Replacement in Sunnyvale
Asphalt Shingle Roof Replacement in Sunnyvale is the right call when a pitched roof has lost its granules or started cupping after a long dry season followed by storm-driven rain. On the steeper ranch roofs and the newer townhome sections in 94085, shingle work is a well-defined job: tear-off to the deck, inspect and replace any soft sheathing, then underlayment and a new shingle system. A typical asphalt shingle roof replacement in Sunnyvale runs $14,000 to $26,000 depending on square footage, pitch, and how much decking needs repair. The written estimate sets the final price.
What the Tear-Off Reveals
Old shingle roofs hide their condition until the material comes off. We check decking for rot, soft spots, and old fasteners that no longer hold, and we’ll show you what we find rather than folding it into a surprise line item. On these homes, a few sheets of sheathing are common; a full redeck is not.
Material Choices That Fit the House
Because we work with IKO, Owens Corning, Atlas, and others, we can match a shingle to the roof’s pitch, the budget you have in mind, and how the house reads from the street. You’ll see the options side by side instead of being steered to whatever is on hand.
New Roof Installation in Sunnyvale
New Roof Installation in Sunnyvale usually means the existing roof is beyond repair or the home is being expanded, and the roof system has to be engineered rather than patched. That’s especially true on the flat and near-flat surfaces common to this city. Installation here is a drainage and ventilation project before it’s a roofing project. A typical new roof installation on a Sunnyvale home runs $18,000 to $32,000, with flat-roof assemblies and structural work pushing toward the higher end. The written estimate sets the final price.
Built-Up and Low-Slope Assemblies
On a 2:12 or flatter roof, the layers go down in a specific order: tapered insulation to build slope, then crickets at the drains, then underlayment, then the membrane. Skip the slope correction and the new roof behaves exactly like the old one. This is where most flat-roof bids differ, and it’s worth asking about.
Adding Slope and Drainage First
Sunnyvale’s original scuppers were sized for 1950s lots and gentler storms. Before any membrane goes down, we scope new drains, crickets, and a re-pitched drainage plane. Patching over a low spot just moves the leak to a new seam.
Trusted Brands We Service in Sunnyvale
We install and service materials from seven manufacturer brands, including Owens Corning, IKO, Atlas, and Tamko. That spread matters on a Sunnyvale roof because repairs often have to match existing shingles from a discontinued line, and a home with a partial replacement needs the new section to blend with what’s already there. Working across multiple systems means our crews can integrate materials rather than tear off more than necessary. We don’t claim exclusive status with any manufacturer, and we don’t stock parts locally. What we do is match the product to your roof, your budget, and the assemblies that hold up in this climate, then get the material moving so the job isn’t sitting idle. Fast turnaround starts with the right order.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Sunnyvale Homes
- Ponding at original scuppers. Builders set drains too few and too small for the lots they serve, so winter storms back water up under old tar and gravel. The leak shows up on a ceiling far from the actual drain, which is why tracing matters.
- Heat-cooked sealant on built-up roofs. Sunnyvale’s long dry summer bakes laps and flashing details until the sealant fails. Nothing leaks until the first real storm arrives, so the roof looks fine right up to the moment it doesn’t.
- Solar arrays on shallow-pitch roofs. Panels added without re-flashing the penetrations or re-engineering the drainage plane break the roof’s water-shedding path. Orphaned brackets from a removed array are just as bad.
- Drainage retrofit disguised as a leak call. On the 1950s-60s tract ranches in 94086 and 94087, a “leak repair” is almost always a drainage upgrade once you trace the ponding. It has to be scoped before any new membrane goes down.
Pricing for Roof Replacement in Sunnyvale, CA
Replacement pricing in Sunnyvale tracks the roof type more than anything else. A pitched asphalt shingle replacement typically runs $14,000 to $26,000, while a new roof installation that includes flat-roof assemblies, tapered insulation, and drainage work typically runs $18,000 to $32,000. What moves the number: square footage, how flat the roof is, whether decking or structural sheathing needs replacement, how many drains and crickets get added, and whether solar is going in during the job. Solar integration is cheaper to scope alongside a replacement than to retrofit later. Every estimate we give Sunnyvale homeowners is free, written, line-item, and fixed. If the scope is right, the price doesn’t change once work starts. Call (855) 473-8840 for an exact quote.
We Also Serve Cities Near Sunnyvale
We work with homeowners across the peninsula and South Bay, including Sunnyvale and the surrounding cities of Santa Clara, San Jose, Fremont, and Morgan Hill. If you’re just outside Sunnyvale and wondering whether your flat or low-slope roof has the same drainage issues, it’s worth a call. Our roof replacement team can walk you through what a proper scope looks like. Call (855) 473-8840 and we’ll book your free estimate.
Serving Sunnyvale, CA – Our Local Coverage Area
We serve Sunnyvale and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Roof Replacement in Sunnyvale
Probably not, and here’s why. On a flat or near-flat Sunnyvale ranch, a leak near a scupper is usually ponding water backing up because the original drains and crickets were undersized. A patch over the low spot will hold for a season and then the water finds the next seam. We’ll trace the ponding first and tell you honestly whether a drainage retrofit is the real fix. Call (855) 473-8840 for a free inspection.
Solar on a shallow-pitch roof has to be planned into the replacement, not added after. Panel mounts create penetrations, and each one has to be flashed and tied into a drainage plane that sheds water properly. The array layout has to match the new roof’s attachment points so you don’t end up with orphaned brackets. We coordinate mounting and flashing with the array plan, so the new roof isn’t compromised. Call (855) 473-8840 to talk through a solar-integrated replacement.
Yes. Flat and low-slope roofs use a different assembly than pitched shingle roofs, and that starts with a built-up slope and crickets before any membrane goes down. The underlayment has to shed water that pools rather than drains, so the membrane and the drainage plane work together. On a pitched roof, gravity does more of the work. Call (855) 473-8840 for an exact quote on your roof type.
Ask how the attic or roof cavity vents, and whether the replacement plan addresses it. The low-slope ranch homes here often have limited attic ventilation by design, and adding insulation or solar without solving venting can trap heat and moisture. A roofer should be able to explain the venting strategy, not just the shingles. Call (855) 473-8840 for a free inspection that covers ventilation.
Compare the scope, not the bottom line. On a Sunnyvale flat-roof replacement, ask whether the bid includes tapered insulation, crickets, new drains, and a re-pitched drainage plane, or just a membrane over the old low spots. Ask about decking, flashing at penetrations, and any solar coordination. A lower bid that skips the drainage retrofit isn’t cheaper, it just moves the leak. Call (855) 473-8840 for a written line-item estimate you can compare.
If your Sunnyvale roof is due for a look, call (855) 473-8840 for a free, written estimate. We’ll tell you exactly what your roof needs – repair, replacement, or nothing at all – and you’ll get a fixed price with no pressure. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by the team at Sunstone Roof Repair.