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Therma-Tru Construction in Cupertino, CA | San Bruno Construction
We install, service, and replace Therma-Tru entry and patio door systems throughout Cupertino as an independent door contractor. What makes our Therma-Tru work different here is simple: we understand how Cupertino’s teardown-and-rebuild cycle and the settled flatwork of the older 95014 ranch tracts stress door slabs, sills, and jambs in ways a generic door installer misses. From fogged half-lite glass on a 1960s ranch to a new Fiber-Classic entry on a two-story addition, we handle the full scope. Call (866) 472-1908 for a free estimate.
Why Cupertino Residents Choose Us for Therma-Tru Service
We work on Therma-Tru doors every week, not once a season. Our crews know the Fiber-Classic and Smooth-Star slab, sill, and hinge geometry well enough to diagnose problems the average remodeler misreads. That matters in Cupertino, where so many homes are mid-century ranch tracts whose original framing has shifted over five or six dry decades. Noel Carvalho, our owner, trained in construction technology at Skyline College in San Bruno and has spent two-plus decades reading load paths and understanding how a door interacts with the wall around it. We stock genuine Therma-Tru slabs, sills, hinges, and glass inserts for fast turnaround, and we use aftermarket weatherstripping only where it outperforms the OEM part. For Therma-Tru sales & service across the South Bay, we’re the crew that shows up knowing the brand.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Cupertino
- Fiberglass skin cracking or blistering at the bottom rail. Cupertino’s hard water and sprinkler overspray sit against the door base through every dry summer. Over years, that mineral-laden moisture works into the slab skin and separates it. We assess whether the skin is repairable or the slab needs replacement.
- Door slabs binding and daylight showing at the corners. Hot, dry Cupertino summers swell older ranch-wall framing. Doors that swung clean in May start sticking by August. We re-hang, trim jambs to out-of-square openings, and adjust hinges so the door closes true without forcing it.
- Fogged or failed glass inserts on half-lite and full-lite doors. West-facing doors on Cupertino hillside lots catch brutal afternoon sun. Factory glass seals eventually fail, and the insert clouds over. We swap in a new Therma-Tru glass panel rather than tearing out the whole door when the frame is sound.
- Sill and threshold leaks on patio doors. The original flatwork on many 95014 ranch lots has settled. Winter-driven rain wicks under the threshold and into the subfloor. We re-flash the sill, reset the threshold, and address the slab settlement so the leak stays gone.
- Entry door specification on rebuilds and second-story additions. When a Cupertino teardown or addition is underway, the entry door setback, header, and threshold detail have to be resolved against the city’s grading and two-story massing review. We coordinate that early so the door isn’t the punch-list afterthought.
Therma-Tru Service in Cupertino: What Local Conditions Mean for Your Door
Here’s something a generic Therma-Tru page won’t tell you. In the 95014 flats, Therma-Tru doors are usually the last thing bid on a teardown-and-rebuild or second-story addition. The builder has spent months on grading plans, heritage-tree assessments, and neighbor-notification rules, and by the time the entry door comes up, the framing is already up and the header height is already set. That’s the wrong order. Cupertino’s building department scrutinizes two-story massing and setback details closely, and the entry door threshold, landing, and header have to work within that approved envelope. If the door is specified after framing, you can end up with a threshold that doesn’t clear the exterior grade or a header that can’t take a full-lite slab without rework. On a recent ranch tract off the old orchard blocks near the 95014 flats, our crew handled Therma-Tru in Sunnyvale and replaced a fogged Fiber-Classic full-lite entry door and rebuilt a rotting threshold where the original flatwork had settled. We set a new Therma-Tru slab, re-flashed the sill, and trimmed the jamb to the out-of-square opening so the door swung clean through a dry Cupertino summer instead of binding. The homeowner got a sealed, weather-tight entry without touching the surrounding stucco. We pull the door spec into the project early, because fixing a header after framing is a change order nobody wants to pay for.
Therma-Tru Models & Products We Service in Cupertino
We service the full residential Therma-Tru lineup, including the Fiber-Classic Collection, Smooth-Star Collection, and Therma-Tru patio and French door systems. Whether it’s a half-lite or full-lite slab with factory glass, we know the profiles and hinge geometry. When the frame and door are otherwise sound, we source genuine Therma-Tru slabs, sills, hinges, and glass inserts. When the skin is cracked through or the frame is racked beyond adjustment, we tell you replacement is the honest call over patching. We keep common slab sizes and sill profiles on hand for faster Cupertino turnaround, so you’re not waiting on a freight shipment from the manufacturer.
See the difference
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AfterTherma-Tru Service Pricing in Cupertino
Door work in Cupertino spans a wide range, but here’s what drives the number. A single slab swap on a sound frame costs far less than a full unit replacement with new glass, and that costs less than a full window-and-door package on an addition. The condition of the rough opening, the type of glass insert, and whether the existing flatwork has settled all move the price. Our free estimate includes a site look at the door, the opening, and the surrounding flatwork, and a written line-item quote before any work starts. Call (866) 472-1908 for an exact number.
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
Serving Cupertino, CA — Our Local Coverage Area
We’re based in the Cupertino area and also offer Therma-Tru repair in Los Altos, and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Therma-Tru Construction in Cupertino
Yes, if the frame is sound and not racked beyond adjustment. Many 1950s – 1970s ranch frames in Cupertino are still straight, and a new slab with fresh hinges and weatherstripping brings the door back to like-new function. If the frame has pulled out of square or the sill is rotted, a full unit replacement is the better call. Call (866) 472-1908 and we’ll tell you which applies to your door.
Cupertino’s hot, dry summers swell the wood framing on older ranch walls, and that transfers pressure into the door jamb. The slab binds at the latch corner, and daylight starts showing at the top. We trim the jamb to the out-of-square opening, adjust the hinges, and reset the sweep so the door works year-round, and we can do the same with Therma-Tru repair in Loyola.
Not usually. Cloudy glass on a half-lite or full-lite door is a failed factory seal, not a structural door problem. We can replace the glass insert with a new Therma-Tru panel while leaving the slab and frame in place, which is far less expensive than a full door replacement. Call (866) 472-1908 for a look at the insert.
It does, and it’s one of the most overlooked details on Cupertino rebuilds. The city’s two-story massing and setback review determines the landing height, header clearance, and threshold detail. We bring the Therma-Tru door spec in early, before framing locks in the opening, so you don’t end up reworking a header or settling for a door that doesn’t fit the approved envelope, whether that’s here or with Therma-Tru service in Saratoga.
We can. Eichler-influenced homes in Cupertino have a particular mid-century vocabulary, and Therma-Tru makes slab and glass profiles that work well with that aesthetic. We match the panel profile, lite pattern, and finish as closely as the line allows, and we’ll tell you honestly if the patio door is worth keeping or would look tired next to a fresh entry. Call (866) 472-1908 and we’ll talk through the match.
Service Areas Near Cupertino
Along with our Cupertino work, we serve homeowners across Cupertino service area neighbors, including San Bruno, South San Francisco, Millbrae, Brisbane, Burlingame, and Colma. For Therma-Tru projects a bit north of Cupertino, see our Therma-Tru service in Milpitas and Therma-Tru service in Santa Clara pages. Our crews move throughout the Peninsula and South Bay weekly.
Book Your Therma-Tru Service in Cupertino Today
If your Therma-Tru door is binding, fogging, leaking at the sill, or just needs a spec review before your Cupertino addition goes to permit, call (866) 472-1908. We’ll schedule a free estimate and walk you through the options. Good construction doesn’t announce itself – it just works, year after year.
Written by Noel Carvalho, Owner at San Bruno Construction, serving Cupertino and the South Bay.