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Therma-Tru Construction in Daly City, CA | San Bruno Construction
We provide independent Therma-Tru installation, repair, and replacement across Daly City, CA, from the flatlands near Mission Street and Colma Therma-Tru service areas up into the sloped stucco tracts of Westlake and Serramonte. The one thing that makes our Therma-Tru work different here is that we detail every new door for constant coastal fog drip, not just the occasional winter storm. That understanding comes from years of pulling rotted door bottoms out of pre-1980 Daly City openings that looked dry from the street. Call (866) 472-1908 for a free estimate on any Therma-Tru project.
Why Daly City Residents Choose Us for Therma-Tru Service
We’re a full-scope general contractor, which means we see the whole wall assembly, not just the door slab in isolation. When a Therma-Tru door fails in Daly City, the cause is almost never the door alone. It’s the flashing above it, the sill pan beneath it, the stucco detailing around it, and the way fog drip sits against the bottom rail for months at a stretch. Our Therma-Tru sales & service work starts with that broader view. Noel Carvalho, our owner, trained in construction technology at Skyline College and has spent two-plus decades running residential projects across San Mateo County. He’s the one who taught our crews to probe every pre-1980 stucco opening with a moisture meter before ordering a replacement slab, because in Daly City the rot you can’t see is the rot that returns two seasons after you patch it.
We’re an independent contractor. We’re not affiliated with or authorized by Therma-Tru, and we’ll tell you straight when a door can be saved with a new sill and weatherstripping versus when the slab and frame both need to go. That honesty, plus our familiarity with every Therma-Tru line from Fiber-Classic to Classic-Craft, is why homeowners across the Daly City service area keep our number.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Daly City
- Bottom rail rot from fog drip and shallow eaves. Daly City’s year-round damp means a Therma-Tru door that stays dry in San Jose can wick moisture into its bottom rail here within a few seasons. The street-facing surface looks fine. A moisture meter tells a different story. We replace the slab, rebuild the sill pan, and add a proper sloped flashing so the next door stays dry.
- Steel-edge corrosion on Fiber-Classic and Smooth-Star slabs. Therma-Tru’s steel-edge construction resists warping, but in salt-fog air the exposed steel along the bottom and hinge-side edges rusts slowly. We see it constantly on doors facing west toward the Pacific, especially where a shallow eave lets drip run straight down the face.
- Multi-point lock hardware binding in damp air. The mortise and multi-point locks on Therma-Tru entry systems are well-built, but Daly City humidity corrodes the internal mechanisms over time. The door won’t latch flush, which breaks the weather seal and lets more moisture in. We disassemble, clean, and rebuild the hardware with corrosion-resistant lubricant, or replace it with genuine Therma-Tru parts when the mechanism is beyond saving.
- Fiberglass skin delamination along south-facing bottom edges. Constant wet-dry cycling from fog drip and afternoon sun causes the factory finish on some older Therma-Tru slabs to bubble and peel. It’s cosmetic at first, but once the fiberglass skin separates, moisture gets underneath and the problem accelerates.
- Rotted rough openings behind failed sills. On 1940s and 1950s Daly City tract homes, the original door openings were flashed for a different climate. When the sill fails, water penetrates the subfloor and bottom plate. We rebuild the rough opening with pressure-treated lumber, marine-grade fasteners, and a sloped sill pan before the new Therma-Tru slab goes in.
Therma-Tru Service in Daly City: What Local Conditions Mean for Your Equipment
Daly City sits in a year-round fog belt with cool, damp summers, so a Therma-Tru door that stays dry in San Jose can rot along its bottom rail here within a few seasons unless the sill pan and head flashing are detailed for constant drizzle rather than storm bursts. On the steep streets of the Serramonte and Westlake areas, late-summer fog drip and winter rain combine to rot the bottom plates of exterior walls that look dry from the street. We see this pattern weekly. A homeowner calls about a sticking door, and when we pull the casing, the sill is soft, the bottom rail is saturated, and the rough opening needs full reconstruction. Most pre-1990 Daly City openings weren’t flashed with sloped sill pans, which means water that hits the threshold has nowhere to go but inward. We fix that with a pan that pitches outward, head flashing that extends past the trim, and a Therma-Tru slab set on a rot-resistant composite sill.
Therma-Tru Models & Products We Service in Daly City
We install and service the full Therma-Tru residential lineup. That includes Fiber-Classic and Smooth-Star entry doors, the Classic-Craft premium fiberglass series, Benchmark entry systems with sidelights and Simulated Divided Lites, and Therma-Tru patio and back-door systems with multi-point locking hardware. For parts, we take a practical approach: genuine Therma-Tru slabs, sills, sweeps, and lock hardware where the frame and rough opening are sound, and quality aftermarket weatherstripping and thresholds when an OEM part is discontinued. On most pre-1990 Daly City openings, we recommend replacement over patching a rotted sill and bottom rail, because the wall-and-flashing problem behind it rarely heals on its own. We also handle the adjacent scope that often comes up on these jobs: roof repair where a bad eave is dumping water onto the door, window replacement on the same wall, and full bathroom remodeling in Daly City when the moisture problem extends inside.
See the difference
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AfterTherma-Tru Service Pricing in Daly City
Therma-Tru repair in Broadmoor and Daly City often touches more than the door itself. You might need a new roof flashing detail, a replaced window on the same wall, or a bathroom rebuild tied to the same moisture intrusion. Here’s what those scopes run in this market:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Roof Repair | $400 – $1,800 |
| Roof Replacement | $8,000 – $20,000 |
| Bathroom Remodel | $9,000 – $28,000 |
A free estimate from us includes a site visit, a moisture check on the slab and rough opening, and a written line-item quote. You’ll know exactly what we’re replacing and why. Call (866) 472-1908 to schedule yours.
Serving Daly City, CA — Our Local Coverage Area
We’re based in the Daly City 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 – Therma-Tru Construction in Daly City
Replace the slab. A soft bottom rail means moisture has already penetrated the fiberglass or steel core, and repainting only hides the damage while rot continues underneath. In Daly City’s fog belt, we’ve never seen a bottom rail recover with cosmetic treatment. We’ll pull the door, confirm the extent with a meter, and set a new Therma-Tru slab with upgraded sill flashing. Call (866) 472-1908 for an exact quote.
In Daly City’s salt-fog air, the internal lock mechanism corrodes and the multi-point rods lose alignment, so the deadbolt and top latch don’t engage fully. That leaves the weather seal broken and lets moisture in. We disassemble the hardware, clean and lubricate it, and realign the strike plates. If the mechanism is too far gone, we install a new genuine Therma-Tru lock. Call (866) 472-1908 to have us take a look.
Fog drip is constant here, not episodic like a storm, so we flash every opening with a sloped sill pan, head flashing that extends beyond the trim, and a back dam that directs water outward. Standard storm-detail flashing fails in Daly City because water sits against the sill for months rather than running off in an afternoon. This is our process, refined from hundreds of Westlake and Serramonte doors. Call (866) 472-1908 to schedule a free estimate.
Yes, when the frame and door slab are sound we can replace a failed sidelight panel or Simulated Divided Lite glass insert on its own. The deciding factor is whether the surrounding frame still seals properly. If the first sidelight failed due to a leaking rough opening, the second will too unless we fix the flashing first. We’ll tell you what’s actually needed. Call (866) 472-1908 for a free assessment.
On steep Serramonte lots, settling and drainage issues often distort the rough opening, which warps the door and breaks the seal. We can repair minor alignment issues, but when the opening itself has shifted or the subfloor has water damage, replacement is the right call. We rebuild the opening, shim it level, and set the new Therma-Tru slab square so it closes flush. Call (866) 472-1908 and we’ll come inspect yours.
Service Areas Near Daly City
We run Therma-Tru installation and repair through all four Daly City ZIP codes (94014, 94015, 94016, 94017) and the surrounding peninsula. If you’re in Visitacion Valley, just over the hill, or down in San Mateo, we cover those as well. San Bruno, South San Francisco, Millbrae, Brisbane, Burlingame, and Colma are all regular stops for our crews.
Book Your Therma-Tru Service in Daly City Today
The fog isn’t waiting, and neither is the rot it causes. If your Therma-Tru door sticks, sags, or won’t latch flush, call (866) 472-1908. We’ll schedule a free estimate, put a moisture meter to it, and give you a straight answer on repair versus replacement.
Written by Noel Carvalho, Owner at San Bruno Construction, serving Daly City since 2010.