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Therma-Tru Construction in Los Altos, CA | Moreno Valley Builders
We provide independent Therma-Tru construction service across Los Altos, CA, from setting new Fiber-Classic and Smooth-Star entry systems to re-flashing and re-hanging doors that have shifted in 60-year-old ranch openings, and we offer Therma-Tru repair in Stanford as well. What makes our Therma-Tru work different here is that we know Los Altos permits and as-built surveys before we ever touch a rough opening. If you’re planning a remodel, addition, or door replacement that involves Therma-Tru products, call (877) 752-3154 for a free estimate.
Why Los Altos Residents Choose Us for Therma-Tru Service
We’ve set, re-hung, and re-flashed Therma-Tru entry, patio, and sidelite systems across hundreds of Los Altos remodels and ranch-house retrofits. We’re not a dealer, and we’re not authorized by Therma-Tru. Our loyalty is to a door that opens, latches, and seals against this town’s hot-afternoon, cool-night swings, not to a sales quota. Noel Trevino, our owner and general contractor, grew up in the Sunnymead Ranch area of Moreno Valley and has spent nearly three decades fixing framing, envelope, and mechanical work that was never quite right the first time. If the details aren’t right on paper, they won’t be right in the wall. That’s the standard we bring to every Therma-Tru sales & service job in Los Altos.
Our Therma-Tru work in Los Altos is part of our General Contractor in Los Altos full-scope operation. We’re the same crew that handles the kitchen remodel, the bathroom, the addition, and the door that ties it all together. One contractor. Every phase. From permits to punch list.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Los Altos
- Racked rough openings on slab and shallow-pier foundations. Original 1950s and 1960s Los Altos ranch homes on 8,000 – 10,000 sq ft lots are rarely plumb or square after 60-plus years of settlement. A prehung Therma-Tru slab goes in twisted and the hinge-side gap never closes cleanly. The fix is re-squaring the rough opening, not swapping another slab.
- Chalking and failing finish film on west- and south-facing entries. Fiberglass skins bake under Los Altos’s hot inland afternoons, then take cool-night condensation. The finish film fails and the bottom rail and sweep dry-rot or harden. Threshold and sweep work comes due on a much shorter cycle here than in coastal towns.
- Ponding sills under deep eaves and shade trees. Los Altos homes were built to preserve single-story massing with deep eaves and mature shade trees. Entries sit in deep recesses where debris and leaf litter collect at the sill. Weep holes clog, sill pans pond, and the bottom rail wicks water during the rare winter rains.
- Sidelite and door-glass seal failure on original single-pane homes. Where the surrounding walls are uninsulated and the windows are still single-pane, the door becomes the thermal bridge. Frame and threshold sweat and frost the interior jamb trim on cool nights. We replace the glass seals and weatherseal with components matched to the specific Therma-Tru line.
- Doors ordered for the wrong rough opening. This happens more than it should. A Therma-Tru slab sized for a clean modern opening will not drop into a Los Altos ranch frame that has drifted half an inch out of square. We measure the actual opening, check the jamb depth against the wall section, and order the slab that fits, not the one the catalog assumes.
Therma-Tru Service in Los Altos: What Local Conditions Mean for Your Equipment
Here’s the part most door companies don’t understand about Los Altos. The older streets west and north of downtown carry shallow setbacks and non-conforming lot coverage that only surface when a homeowner pulls a permit for an addition. What does that have to do with a Therma-Tru door? Plenty. A room addition or kitchen remodel that adds or moves an exterior Therma-Tru door often gets caught in as-built survey and variance work before framing can begin. If we set the rough opening and door swing before the survey comes back, we risk framing a door that has to move two feet after the variance review. So we lock the rough opening and door swing after the survey, not before. That sequencing is the difference between a door that fits on the first try and a re-frame that eats two weeks of schedule. In Los Altos, the survey drives the door location. Not the other way around.
On a mid-century ranch teardown-rebuild just west of downtown, our crew was cutting a new rear Therma-Tru patio entry into the preserved one-story massing when the as-built survey flagged non-conforming coverage. The door location pushed two feet. We re-framed the rough opening in the original uninsulated wall, set a flashed raised sill pan and re-squared frame, hung the Smooth-Star unit, and re-sealed the bottom rail so the deep-eave recess drains instead of ponding during the winter rains. That’s Therma-Tru work done for Los Altos, not just done in Los Altos.
Therma-Tru Models & Products We Service in Los Altos
We work on the full Therma-Tru residential lineup: Fiber-Classic entry doors with fiberglass skins and woodgrain or smooth finishes, Smooth-Star fiberglass entry and patio doors, Classic-Craft American Style collection units, and door glass and sidelite systems including AccuGrain and decorative glass lines. On parts, we buy OEM Therma-Tru replacement slabs, hinges, sweeps, and sill components where they exist for the door line, and step to quality aftermarket sill pans and weatherseal only when the OEM detail won’t fix the real problem. On a sound frame and hardware set we repair. When the rough opening is racked or the slab is delaminated or warped, we’ll tell you to replace rather than re-hang a door that will bind again by next summer.
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AfterTherma-Tru Service Pricing in Los Altos
Therma-Tru door work in Los Altos is typically part of a larger scope, so the honest answer on price is that it depends on what’s around the door. Here are the ranges we work within, based on what we’ve quoted across Los Altos, 94022, 94023, and 94024:
| Scope | Typical Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
| Full Bathroom Remodeling | $9,000 – $28,000 |
| Window Replacement | $4,500 – $15,000 |
What drives the cost on a Therma-Tru project in Los Altos is the condition of the rough opening, whether the survey triggers a variance, and which door line you choose. A free estimate includes a look at the actual opening, the jamb depth, the sill condition, and the wall section, so you get a line-item price, not a guess. Call (877) 752-3154 to schedule one.
Serving Los Altos, CA — Our Local Coverage Area
We’re based in the Los Altos area and know this community well, and we also handle Therma-Tru repair in Mountain View. 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
Sometimes, yes. If the rough opening is square within tolerance and the jamb depth matches the wall section, we can set a new Therma-Tru slab and prehung unit into the existing frame. If the opening has drifted from slab settlement or the original framing was never square, re-framing is the only way to keep the hinge-side gap from binding. We’ll tell you which one you’re dealing with before we order the door. Call (877) 752-3154 for an inspection and a straight answer.
Yes, it can. Any exterior door added or moved during an addition is part of the permit set, and on the older streets west and north of downtown, non-conforming lot coverage often surfaces at that point. We sequence the Therma-Tru rough opening and door swing after the as-built survey and variance work, not before, so the door lands where the city says it can.
Los Altos sits in a dry-summer Mediterranean climate with hot inland afternoons, often 10 to 15 degrees warmer than nearby coastal towns, and cool nights. West- and south-facing Therma-Tru entries take direct afternoon sun, then cool-night condensation. The finish film fails, and the bottom rail and sweep dry-rot or harden on a shorter cycle than in coastal climates. We replace the sweep, refinish the slab, and check the threshold while we’re at it.
No. We’re an independent Los Altos service area contractor. We buy OEM Therma-Tru parts where they exist and recommend factory-direct warranty claims on manufacturing defects. What we handle is the construction side: framing, flashing, setting, sealing, and re-hanging. That independence means our recommendation is based on what the door needs, not on what we’re obligated to sell.
It can. Deep eaves and shade trees are great for sun control, but they funnel debris and leaf litter to the entry. Weep holes clog, sill pans pond, and the bottom rail wicks water during the October to April rain window. The fix is a flashed raised sill pan, clean weep paths, and a re-sealed bottom rail so the recess drains instead of holding water. Call (877) 752-3154 for a free estimate on sill and threshold work.
Service Areas Near Los Altos
Our Therma-Tru work extends to neighboring communities including Therma-Tru service in Los Altos Hills and Therma-Tru service in Palo Alto. We also serve Mountain View, Sunnyvale, and Cupertino, applying the same permit-aware, survey-first approach to every Therma-Tru door we set.
Book Your Therma-Tru Service in Los Altos Today
If you’re planning a Therma-Tru door replacement or an addition that moves an entry, or need Therma-Tru in Loyola, call (877) 752-3154. We’ll set up a free estimate, check the rough opening, and get your door on the schedule. In Los Altos, the survey comes first. So does the phone call.
Written by Noel Trevino, Owner & General Contractor at Moreno Valley Builders, serving Los Altos and the surrounding Silicon Valley communities.