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Therma-Tru Construction in Los Altos, CA | Milpitas Construction
We provide independent Therma-Tru construction and service across Los Altos, CA, from entry-door replacements on 1950s ranches to full door packages on new ADUs and second-story additions, and we also handle Therma-Tru repair in Stanford. The one thing that makes our Therma-Tru work different here is that we plan around Los Altos’ discretionary design-review process, so your door selection, sightlines, and massing hold up at the planning hearing, not just on the wall. We’re Milpitas Construction, led by Ken Stafford, and we’ve installed and serviced Smooth-Star, Classic Craft, and Fiber-Classic entry systems across 94022, 94023, and 94024. Call (877) 752-4194 for a free estimate.
Why Los Altos Residents Choose Us for Therma-Tru Service
We know how Therma-Tru fiberglass and steel entry systems actually behave in Bay Area conditions, because we’ve hung them and serviced them on Los Altos remodels and additions for years, plus Therma-Tru repair in Mountain View. We’re not a parts distributor or a manufacturer call center. We’re the crew that shows up when a Fiber-Classic slab cracks along the panel edge in August or a Smooth-Star door drags on its sill after an addition settles. Ken Stafford grew up near the Milpitas BART station back when that corridor was mostly warehouse lots and family-owned shops, and that practical, no-shortcuts foundation shows in how we approach every Los Altos door job. We spec materials by name, so you know exactly what’s going into your home.
As an independent crew, we are not authorized, sponsored, or endorsed by Therma-Tru. What we bring is hands-on, daily familiarity with their product lines and access to genuine Therma-Tru components. When a door is worth repairing, we repair it correctly. When it needs replacing, we tell you straight and source the right slab, sill, and hardware. That’s the difference between a contractor who installs doors and a contractor who understands them. See our Therma-Tru sales & service page for more on how we work.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Los Altos
Therma-Tru doors are well built, but Los Altos has specific conditions that stress them in predictable ways. Here are the failure modes we see most often, with the local factor behind each one.
- Sun-baked stiles and rails. Los Altos’ dry summers and strong UV exposure chalk and crack the factory finish on Fiber-Classic and Smooth-Star slabs, especially on south- and west-facing entries. Hairline cracks at panel edges and peeling paint film are the typical signs. We strip, prep, and refinish where the slab is sound, or replace the door when the damage has gone too deep.
- Winter wet-season intrusion. When the rains come, water pushes past worn sweep gaskets, sill thresholds, and corner seals on entry systems. Homeowners notice swollen bottom rails and interior water stains after the first storms. We replace sweeps and thresholds with genuine Therma-Tru parts and reset the reveal so the door seals tight.
- Sagging and misaligned slabs on additions. Los Altos has a lot of second-story additions and rebuilt entries, and framing shifts slightly after structural settling. A Therma-Tru slab hung before that settling drags on the sill or refuses to latch smoothly. We re-shim hinges, adjust the multi-point lockset, and if the rough opening has moved too far, we’ll tell you the truth about replacement.
- Hinge and lockset wear on patio entries. Fiber-Classic and Smooth-Star doors opening onto new decks and ADU entries see constant traffic. Hinge screws strip, multi-point locksets drift, and the door starts sticking. We replace hinge hardware with quality components and realign the lockset so the door operates like new.
- Design-review redesigns. This is a Los Altos-specific problem. A door selected before the planning hearing often gets changed once neighbors raise privacy or massing objections. We’ve handled entries that had to be re-specified mid-permit, and we order slabs only after the design review outcome is clear, so you’re not stuck with a $4,000 door that no longer fits the approved plan.
Therma-Tru Service in Los Altos: What Local Conditions Mean for Your Equipment
Los Altos is a low-density, highly-regulated Silicon Valley suburb where nearly every construction project runs through discretionary design review. The city has no standard subdivision tract pattern, so additions, ADUs, and second-story remodels on mature single-family lots dominate the work, and permit and planning approval timelines shape every job. For Therma-Tru owners, that means the entry-door and sightline decisions on a new front entry or ADU get scrutinized at the planning hearing and often get redesigned before a slab is ever ordered. We’ve seen door packages approved, then pulled back when a neighbor raised a massing concern about a wider entry on a second-story addition off a 1960s ranch near downtown Los Altos. The savvy move is to bring a shadow and sightline study, a neighbor-outreach plan, and a door spec that matches the approved drawings before the hearing, not after. We handle that coordination as part of the door package, so the Therma-Tru slab you order is the one that gets installed.
Therma-Tru Models & Products We Service in Los Altos
We service the full range of Therma-Tru entry systems most common in Los Altos remodels and additions: Smooth-Star fiberglass entry doors, Classic Craft fiberglass doors, Fiber-Classic entry systems, and American Style steel entry doors. Our approach is straightforward: source genuine Therma-Tru replacement slabs, sills, sweeps, and hinge hardware where the frame is sound, and use quality aftermarket weatherstripping and finishes only where OEM parts are discontinued or back-ordered. We keep common sweep profiles, thresholds, and hinge hardware on our trucks for faster Los Altos turnaround. Our honest stance: repair the frame and hardware when the structure is straight, and replace the full entry system when a slab is warped or the rough opening has shifted.
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AfterTherma-Tru Service Pricing in Los Altos
What you pay depends on the scope: a door repair is one thing, a full entry package on a new ADU or addition is another. Below are the line-item ranges we work within for Los Altos projects, and they include materials and labor unless we tell you otherwise up front.
| Project | Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| ADU Construction | $90,000 – $220,000 |
| Garage Conversion | $30,000 – $80,000 |
| Window Replacement | $4,500 – $15,000 |
Door-only repairs and slab replacements fall within the project cost when they’re part of a larger scope, and we quote them as separate line items. A free estimate includes a site visit, measurements, and a written quote with no change orders. Call (877) 752-4194 for exact numbers on your Los Altos project.
Serving Los Altos, CA — Our Local Coverage Area
We’re based in the Los Altos area and know this community well, and we also offer Therma-Tru repair in Los Altos Hills. 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
Yes, a new Therma-Tru entry door can be included in a Los Altos ADU or addition permit as long as the door spec is finalized before or during the design-review phase, not after approval. Los Altos runs most additions and ADUs through discretionary design review, and changing an approved door size or orientation after the hearing can trigger a resubmission. We coordinate the door spec with the approved drawings so the permit stays clean. Call (877) 752-4194 for help with your specific project.
That cracking is UV and dry-heat damage to the factory finish, typical on south- and west-facing entries in Los Altos’ dry summer climate. The factory finish chalks and hairline cracks form at panel edges where the material flexes. If caught early, we strip, prep, and refinish; if the fiberglass itself has cracked or the damage is deep, replacement is the honest call. We can inspect it and tell you which path makes sense.
If the frame is straight and the slab isn’t warped, we repair: re-shim the hinges, adjust the multi-point lockset, and replace the sweep. We’ve done exactly that on a second-story addition off a 1960s Los Altos ranch, where a Smooth-Star entry system dragged on the sill after the stucco cured and the framing shifted. If the rough opening has moved significantly or the slab itself is warped, replacement of the full entry system is the better investment. Call (877) 752-4194 and we’ll assess it in person.
Yes, when the sweeps, thresholds, and corner seals are in good shape and the reveal is set correctly. West-facing entries catch the most wind-driven rain in Los Altos, so worn bottom sweeps or tilted sills show up as interior water stains after the first storms. We use genuine Therma-Tru replacement sweeps and thresholds and set the door so water sheds away from the threshold, not under it.
A Therma-Tru door on a garage conversion or ADU will meet local requirements as long as it’s specified into the permit drawings, including any egress, fire-rated, or accessibility requirements Los Altos applies to that unit type. We work with the approved plans so the door you get matches what the city signed off on. For a quote that includes the door and the permit coordination, call (877) 752-4194.
Service Areas Near Los Altos
Beyond Los Altos ZIPs 94022, 94023, and 94024, we run Therma-Tru service to nearby neighborhoods and communities including Loyola and Cambrian Park. If you’re just outside Los Altos, check our Los Altos service area page or see our Therma-Tru service in Loyola and Therma-Tru service in Cambrian Park pages for coverage details.
Book Your Therma-Tru Service in Los Altos Today
If your Therma-Tru entry system needs repair or you’re planning a door package for a Los Altos addition, ADU, or garage conversion, call (877) 752-4194, or learn more about our General Contractor in Los Altos. We’ll schedule a free estimate, walk the site, and give you a written quote. Build it right the first time – the Bay Area doesn’t give you a free pass on shortcuts.
Written by Ken Stafford, Owner at Milpitas Construction, serving Los Altos and the surrounding Bay Area.