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Therma-Tru Construction in Lexington Hills, CA | San Mateo Construction
We provide independent Therma-Tru construction service across Lexington Hills, from fiberglass entry systems to door replacements tied into full remodels. The piece most out-of-area contractors miss here: a door replacement isn’t just about the slab. It’s about how that door holds an ember-resistant seal against wildfire smoke while the project still clears Santa Clara County’s defensible-space plan review. Therma-Tru sales & service is something we’ve handled across the Santa Cruz Mountains for years, and we do it as an independent provider, not a manufacturer-authorized dealer. Call (855) 901-7266 for a free estimate.
Why Lexington Hills Residents Choose Us for Therma-Tru Service
Noel Carrington grew up pouring concrete footings with his father near Coyote Point and has spent three decades framing, renovating, and managing jobs across San Mateo County. That background matters when you’re working on a Lexington Hills cabin where the door jamb was built in 1968, the private road barely fits a pickup, and county plan check wants the site map to show a 100-foot clearance zone before anything gets approved. We know Therma-Tru slabs, frames, and multi-point hardware well enough to tell you when a door is worth repairing and when the frame has rotted past the point of saving, including Therma-Tru repair in Scotts Valley. We use genuine Therma-Tru replacement slabs, Tru-Defense frames, sills, sweeps, and multi-point hardware where the opening is sound. We use quality aftermarket weatherseal only where OEM isn’t available. Nobody gets an upsell disguised as a recommendation.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Lexington Hills
- Sun-bleached, chalky fiberglass skins on west-facing Fiber-Classic doors. Lexington Hills sits in a high-fire-severity zone with hot, dry summers. That unshaded mountain sun will fade stain and leave a chalky film on an older fiberglass slab years before the door itself fails structurally. We strip, prep, and refinish where the skin is sound, or replace the slab if it’s gone too far.
- Swollen, sticking slabs and rusted hinges after winter storms. Severe winter storms drive rain onto doors under shallow or missing overhangs all over Lexington Hills. The slab absorbs moisture, the edges swell, and a door that closed fine in September won’t latch in February. We replace hinges, adjust reveals, and in many cases install a Tru-Defense frame that won’t soak up water the way a 40-year-old wood jamb does.
- Cracked or delaminating stiles at the lock rail. The housing stock here is largely mid-century mountain cabins and owner-built wood-sided homes, many on pier-and-beam foundations. Seasonal framing movement throws the deadbolt out of alignment, and repeated forcing of the door cracks the lock rail. On a pier-and-beam house, the fix usually starts with the frame, not the knob.
- Failed weatherstripping, sweeps, and sill gaskets that let embers and smoke past the door. This is the one that matters most in Lexington Hills. A door that doesn’t latch tight isn’t just a comfort problem. In a high-fire-severity zone, a worn sweep or a flattened sill gasket lets embers, smoke, and cold air into the house. We replace those seals and check the entire perimeter for gaps.
- Old steel entry doors with failed factory finish and rust at the bottom rail. Therma-Tru Signet and Profiles steel doors hold up well, but the bottom rail takes a beating when winter runoff pools at the threshold on a sloped Lexington Hills lot. Rust at the bottom rail is a judgment call. Sometimes it’s a patch and repaint. Sometimes the door gets swapped for a fiberglass slab that won’t have the same problem.
Therma-Tru Service in Lexington Hills: What Local Conditions Mean for Your Equipment
A Therma-Tru install in Lexington Hills is judged in part by defensible space and county plan review. The county wants the site plan to show the 100-foot clearance zone, and a new entry door with a noncombustible surround and tight ember-resistant seal is one of the cheapest ways to satisfy that while upgrading an older cabin’s front entry. Off Old Santa Cruz Highway, we replaced a sun-chalked Fiber-Classic entry door on a 1960s redwood-sided cabin whose slab had swollen and stopped latching after a wet winter. The private road was too tight for our full-size truck, so we staged materials in a smaller vehicle, reset the rotted jamb with a Tru-Defense frame, and fitted a new slab with fresh sweeps and multi-point hardware. The door now seals tight against smoke and rain, and the homeowner used the same visit to plan a kitchen remodel. That’s the thing about Lexington Hills: narrow private roads off Old Santa Cruz Highway can block a concrete truck or a delivery van, so you plan access before you plan the work. We’ve been doing that long enough that it’s just part of the estimate, not a surprise at the end of the job.
Therma-Tru Models & Products We Service in Lexington Hills
We service the full Therma-Tru lineup that shows up in Lexington Hills homes: Fiber-Classic and Smooth-Star fiberglass entry doors, Classic-Craft canvas and American Style door collections, Signet and Profiles steel entry doors, and fiberglass patio and French door systems with Tru-Defense frames. Our stance on parts is straightforward: OEM first, aftermarket only where Therma-Tru doesn’t offer a weatherseal or sweep for that specific slab. Repair versus replace is an honest conversation. If the frame is rotted or the slab is warped beyond adjustment, we recommend replacement over repeated repairs, and we tell owners plainly which side of that line they’re on.
See the difference
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AfterTherma-Tru Service Pricing in Lexington Hills
What you’ll pay depends on how much of the existing opening is salvageable. A slab-only swap with existing frame costs less than a full frame-out with new sidelites. Here are the ranges we quote across San Mateo County:
| Therma-Tru Service | Typical Range |
|---|---|
| Window Replacement (entry door glass and sidelites) | $4,500 – $15,000 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
| Full Bathroom Remodeling | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
Every estimate starts with a site visit. We check the jamb, the threshold, the slab, the hardware, and the exposure on your specific lot off 95031. Tell me what you actually need, and we’ll figure out the right way to build it. Then we give you a written line-item quote so you can see exactly what a slab swap costs versus a full frame replacement. Call (855) 901-7266 to schedule a free estimate.
Serving Lexington Hills, CA — Our Local Coverage Area
We’re based in the Lexington Hills area and know this community well, with Los Gatos Therma-Tru service and nearby coverage. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Therma-Tru Construction in Lexington Hills
Yes. A fiberglass entry door with a tight ember-resistant seal, noncombustible surround, and proper sweeps helps demonstrate compliance with Santa Clara County’s defensible-space expectations during plan review. It isn’t a fire-rated door, but it’s a meaningful upgrade over an older wood door with gaps around the frame. Call (855) 901-7266 and we’ll look at your specific entry before you file anything with the county.
In Lexington Hills, winter storms drive rain into door frames that lack deep overhangs, and the moisture swells the slab and shifts the jamb. On pier-and-beam homes, seasonal framing movement adds to it. The door sticks or won’t latch. The fix usually involves drying out or replacing the jamb, adjusting the reveals, and installing fresh sweeps and weatherseal. If it recurs every single winter, the frame may need replacement with a Tru-Defense frame that won’t absorb water. Call (855) 901-7266 for an exact diagnosis.
Yes. We’ve staged materials in smaller vehicles off Old Santa Cruz Highway when the full-size truck couldn’t make the turn, and we offer Therma-Tru service in Monte Sereno with the same access planning. Lexington Hills has roads that a concrete truck or delivery van simply cannot navigate, so access planning is part of every estimate we write. We’ll tell you upfront how we’ll get materials to the door, not surprise you on install day.
Repair the slab if the skin is intact, the frame is square and dry, and the failure is limited to weatherseal, sweeps, or hardware. Replace it if the slab is warped, the lock rail is cracked, or the jamb has rotted to the point where shims won’t hold anymore. We’ll tell you which side of that line your door is on, and we won’t push replacement when a $400 weatherseal job gets the door working again. Call (855) 901-7266 for an honest read.
Yes. A Therma-Tru entry or patio door often goes in as part of a larger whole-home scope. We handle Full Kitchen Remodeling, Full Bathroom Remodeling, and Roof Replacement & Installation under the same contract, so the door crew and the framing crew answer to the same person. If you’re already tearing out the kitchen, adding a Therma-Tru patio door in the same wall makes sense, and we also handle Therma-Tru repair in Cambrian Park. Call (855) 901-7266 and we’ll scope the whole opening.
Service Areas Near Lexington Hills
We work throughout the Santa Cruz Mountains and the Peninsula. If you’re in Therma-Tru service in Brookdale, we cover that stretch regularly. Therma-Tru service in Lompico is also in our normal rotation. We also serve San Mateo, Burlingame, Hillsborough, and Foster City. Our full Lexington Hills service area covers ZIP 95031 and the surrounding mountain roads.
Book Your Therma-Tru Service in Lexington Hills Today
Call (855) 901-7266 to schedule a free estimate. We’ll come out, check the slab, frame, and seals, and give you a written line-item quote for exactly the work your door needs. If it’s an urgent latch failure on an entry door, we’ll get it sealed tight and schedule the full repair right behind it.
Written by Noel Carrington, Owner at San Mateo Construction, serving Lexington Hills and the Santa Cruz Mountains.