Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Therma-Tru Construction in Los Altos, CA | San Bernardino Contractors
We’re San Bernardino Contractors, our General Contractor in Los Altos and an independent Therma-Tru service provider working across the area. We install, repair, and replace Therma-Tru entry and patio doors on the 1940s – 1960s ranch homes that dominate 94022 and 94024. What makes our Therma-Tru work different here: we know Los Altos design review, and we know how this valley’s clay soil moves under a door frame. Call (855) 473-5620 for a free estimate.
Why Los Altos Residents Choose Us for Therma-Tru Service
We’ve been installing and servicing Therma-Tru doors in Los Altos for over a decade, from single-door swaps on ranch homes to full patio-door replacements in down-to-the-studs remodels. We’re not authorized by Therma-Tru, and we’ll tell you that straight. What we are is fluent in their product lines, Classic-Craft, Fiber-Classic, Smooth-Star, Pulse, and we know exactly which failure points show up in this climate. Ruben Castillo, our owner, grew up learning construction the hard way, on job sites where a door that didn’t close right meant a callback. That standard stuck. When a Los Altos homeowner calls us about a Therma-Tru door, we show up knowing the house was probably built in 1958, the rough opening has shifted, and the design review board may want a say in what we install.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Los Altos
- Fiberglass skin cracking and finish chalking on west-facing entries. Los Altos gets hot, dry summer afternoons, and doors with minimal overhang protection take a beating. After 10 – 15 years, we see hairline cracks in the skin and chalking that won’t polish out. We’ll tell you honestly whether a refinish will hold or whether it’s time for a new slab.
- Wood-edge rot on Classic-Craft doors at the bottom rail. Many Los Altos ranch homes have settled thresholds and poor drainage at the entry. When winter rains come, water wicks up into the door edge. The bottom rail stays wet, and rot follows. We repair where the structure’s sound; we replace when it isn’t.
- Weatherstripping compression on patio doors from expansive clay. Los Altos sits on clay that swells in winter and shrinks in summer. That movement works against weather seals season after season. By the third or fourth winter, you’ve got drafts and water infiltration at the sill.
- Hinge and lock misalignment from out-of-square rough openings. The 1950s and 60s houses here weren’t framed to today’s tolerances, and clay movement makes it worse. Doors bind, locks stop lining up, and the security of the entry suffers. We reframe the rough opening when needed, not just shim the hinges.
- Patio door roller and track failure from seasonal frame movement. Sliding Therma-Tru patio doors on older Los Altos homes can develop track wear and roller failure as the frame flexes. We replace OEM rollers and realign the track, or we’ll tell you if the frame itself has moved beyond adjustment.
Therma-Tru Service in Los Altos: What Local Conditions Mean for Your Equipment
Here’s something you won’t read on a generic Therma-Tru page. Los Altos runs a discretionary design review process that can turn a simple door swap into a multi-week approval. Neighbors show up to Planning Commission meetings over second-story additions and tree removals, and even a modest exterior change like replacing a front entry door is expected to match the original ranch-house character. That’s not a San Jose problem or a Therma-Tru repair in Mountain View problem. It’s a Los Altos problem. So when we replace a Therma-Tru entry door on a 94022 ranch home, we’re not just thinking about the rough opening and the sill pan. We’re thinking about whether the door slab’s profile, panel style, and finish will pass review without a stall. We’ve learned to spec doors that read as period-appropriate, and we’ll walk you through what the city’s design review folks tend to flag before you spend money on a door that could get held up.
Therma-Tru Models & Products We Service in Los Altos
We service the full Therma-Tru lineup you’ll find on Los Altos homes. The Classic-Craft American Style Collection for homeowners who want wood-grain realism without the rot. The Fiber-Classic Collection, common on mid-century ranch homes here, with its paintable, stainable surface. The Smooth-Star Collection for clean, low-maintenance entries. And the Pulse Series for contemporary remodels in 94023 and 94024. We use OEM Therma-Tru hinges, locks, and weatherstripping to keep your warranty intact when it matters. When Therma-Tru has discontinued a part, we source quality aftermarket seals and sills that do the job without pretending to be something they’re not. As a Therma-Tru sales & service provider, we keep the common replacement parts that Los Altos homes actually need, so turnaround on an entry door repair doesn’t drag out.
See the difference
Before
After
Before
After
Before
AfterTherma-Tru Service Pricing in Los Altos
Therma-Tru work in Los Altos usually falls within the same ranges we quote for other door and construction projects across the region. Pricing depends on the condition of the rough opening, whether we’re repairing or replacing, and what the design review process requires. Here’s what we typically see:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Roof Replacement | $8,000 – $20,000 |
| Kitchen Remodel | $14,000 – $45,000 |
A free estimate includes an on-site look at the door, the frame, and the surrounding soil conditions. We give you a written, line-item quote before any work starts. Call (855) 473-5620 to schedule yours.
Serving Los Altos, CA — Our Local Coverage Area
We’re based in the Los Altos 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 Los Altos
It depends on the scope. A like-for-like door replacement that matches the existing style typically moves through faster than a full entry redesign. But Los Altos design review can still require staff-level approval, and if your home is in a neighborhood with active architectural oversight, expect a discretionary review. We’ll tell you what your specific project likely triggers before you pull a permit. Call (855) 473-5620 and we’ll walk you through it.
The clay here swells with winter moisture and shrinks through the dry summer, which can shift a door frame by a quarter to a half inch over the years. That movement causes binding, lock misalignment, and weather seal failure. We account for it by checking the rough opening for square, reinforcing the sill, and using weatherstripping that tolerates seasonal movement.
For a west-facing entry with afternoon sun exposure, the Smooth-Star Collection holds up better than models with heavy wood-grain texture that can trap heat and show chalking sooner. If you want the wood look, fiberglass skins on Classic-Craft doors handle UV better than real wood, but expect to maintain the finish more often on that exposure. We’ll spec the right finish and overhang considerations for your lot.
Yes, generally. Los Altos requires permits for exterior door replacements, including patio doors, and the design review process can apply depending on the project scope. We handle the permit application and any required design review submittals. Call (855) 473-5620 for an exact quote, estimates are free.
Every two to three years is a good interval for checking weatherstripping, hinges, and sill drainage on a Los Altos home. The wet winter to dry summer cycle stresses seals and hardware, and catching minor wear before the rains arrive saves you a drafty entry and water damage at the threshold.
Service Areas Near Los Altos
We also provide Therma-Tru service in Therma-Tru service in Los Altos Hills and Therma-Tru service in Palo Alto, plus the surrounding Santa Clara Valley communities. If you’re in the broader Los Altos service area, give us a call and we’ll let you know how soon we can get out to you.
Book Your Therma-Tru Service in Los Altos Today
If your Therma-Tru door is binding, drafty, or showing its age under the Los Altos sun, call (855) 473-5620. We’ll schedule a free estimate, assess the door and the frame, and give you a straight answer on repair versus replacement. If it’s not built right the first time, you’re just paying for it twice.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Los Altos since our first Therma-Tru door install on a 94022 ranch home.