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Therma-Tru Construction in Los Altos Hills, CA | Iron Beam Contractors
We provide independent Therma-Tru entry door construction and Los Altos Hills General Contractor service across Los Altos Hills, from slab replacement to full frame rebuilds on steep hillside lots. The one thing that makes our Therma-Tru work here different is simple: most door companies don’t think about saturated clay soil, wildland-interface ember risk, or whether a delivery truck can even reach your front door. We do, because every Therma-Tru install in Los Altos Hills has to account for all three. Call (833) 756-5936 for a free estimate.
Why Los Altos Hills Residents Choose Us for Therma-Tru Service
Nolan Driscoll, our owner, frames it this way: if the structure makes sense on paper, it’ll hold in the field. If it doesn’t make sense on paper, we fix it before we touch a beam. That same logic applies to every Therma-Tru door we set in Los Altos Hills. We measure the rough opening, check the sill pan slope, and read the drainage path before we order a slab. That’s why we’re the contractor homeowners call after a door company has already failed them once.
We’re an independent contractor, not authorized or endorsed by Therma-Tru. That independence means we give you an honest repair-versus-replace call every time. If your frame is sound, we’ll tell you. If your sill pan is rotting out from winter runoff wicking under a hardscape that slopes toward the door, we’ll tell you that too. We carry Therma-Tru OEM sills, sweeps, weatherstrip, and glass lites where they’re available, and we stock enough locally to keep Los Altos Hills turnarounds tight. Explore our full Therma-Tru capability through our Therma-Tru sales & service page.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Los Altos Hills
- Sill and threshold rot from hillside drainage. On a lot that slopes toward the house, winter runoff saturates the door base. The door slab outlasts its sill pan, and water wicks into the rough opening from the wet side. We see this on custom homes throughout Los Altos Hills where original drainage got paved over or buried during a later remodel.
- Fiberglass slab finish breakdown on exposed ridgetop entries. West- and south-facing doors on exposed ridgetop lots take hard, unshaded afternoon sun for years. The finish fades, then the fiberglass starts to chalk. A refinish can buy time, but we’ll tell you honestly when a new Therma-Tru Smooth-Star or Fiber-Classic slab is the better spend.
- Weatherstrip and sweep failure that lets in ember-laden air. In Los Altos Hills we’re in the wildland-urban interface. A worn sweep isn’t just a draft, it’s an ember entry point during fire season and a leak during winter storm winds. We re-set OEM weatherstrip and sweep, then check the full perimeter for gaps.
- Racked and out-of-square frames on older custom homes. Homes built from the 1960s through 1990s in Los Altos Hills often carry non-standard structural details. We regularly find frames that drifted out of square over decades, causing sticking and latching problems that no hardware swap fixes. The fix is a frame rebuild, not a new lockset.
- Undersized sill pans on non-standard rough openings. Custom framing means custom rough openings, and an off-the-shelf sill pan rarely fits well. We cut and slope pans to match the actual opening, then re-flash the base so water doesn’t sit against the door bottom.
Therma-Tru Service in Los Altos Hills: What Local Conditions Mean for Your Equipment
Los Altos Hills is a semi-rural town where nearly every sizable project navigates steep, wooded hillside lots, private roads, and a town code enforcing large minimum lot sizes and strict hillside/slope limits. That’s true for new construction and it’s true for a Therma-Tru entry door replacement. The driveways here often double as private access roads with steep grades and tight turnarounds, so concrete trucks and material deliveries frequently need special arrangements. The information gain for any Therma-Tru owner in Los Altos Hills is this: many entry-door replacements can’t be a same-day swap, because crews must stage door slabs and glass lites at the bottom of the grade and haul them up by pickup when a delivery truck can’t make the turn or the slope. That logistics reality, combined with saturated hillside clay, means we inspect every slab for hidden freight damage before it goes near the rough opening. If you’re planning work anywhere in the 94022, this is the part generic door pages miss. Learn more about our broader coverage on our Los Altos Hills service area page.
Therma-Tru Models & Products We Service in Los Altos Hills
We install and service the Therma-Tru Fiber-Classic entry door series, Smooth-Star fiberglass entry and patio doors, Classic-Craft door series, and Therma-Tru door and sidelite systems with factory finish and glass lites. On every job we use Therma-Tru OEM replacement sills, sweeps, weatherstrip, and glass lites where they’re available so fit and finish hold. Where OEM isn’t practical, we turn to quality aftermarket multipoint and threshold hardware and tell you we’re doing it. If the frame and rough opening are sound, we repair and re-flash. If the slab or sill pan is failing at the base, we’ll say plainly that replacement is the smarter spend.
We’re also a full-scope general contractor, which matters when a door project turns into a window replacement, impact window installation, or home addition in the same envelope. One contractor, every phase.
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AfterTherma-Tru Service Pricing in Los Altos Hills
Pricing on Therma-Tru work in Los Altos Hills depends on what’s adjacent to the door. A simple slab replacement on a level entry is one cost. A hillside entry that needs a rebuilt rough opening, a re-sloped sill pan, drainage correction, and a slab hauled up from the street is another. Here are the related envelope and addition ranges we work within in the Los Altos Hills market:
| Service | Price Range |
|---|---|
| Window Replacement | $4500 – $15000 |
| Impact Window Installation | $8000 – $25000 |
| Home Addition | $45000 – $130000 |
Your free estimate includes a full inspection of the rough opening, sill pan, drainage path, and frame square before we quote a number. Call (833) 756-5936 to schedule yours.
Serving Los Altos Hills, CA — Our Local Coverage Area
We’re based in the Los Altos Hills area and know this community well, including nearby Therma-Tru repair in Los Altos. 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 Hills
It depends on the scope. A straight slab swap in the same rough opening usually doesn’t require a permit, but if we’re rebuilding the frame, changing the opening size, or moving the door location on a hillside lot, the town code’s slope and setback limits can trigger plan review. We handle the permit paperwork when it’s needed and tell you before work starts whether your door job crosses into that territory. Call (833) 756-5936 and we’ll assess your specific situation.
Usually it’s the lot, not the slab. Saturated clay soil expands against the foundation, and on a hillside the movement isn’t even. The frame racks slightly, the door binds, and hardware stops latching. We measure the frame square and check the sill for moisture wicking before recommending anything. Sometimes it’s weatherstrip; more often on Los Altos Hills hillsides it’s structural movement that needs a frame correction, not a new door. A free inspection will tell you which. Call (833) 756-5936.
Often no, and that’s normal in Los Altos Hills. Many private drives here have grades and turnarounds that won’t take a full delivery truck. Our practice is to stage slabs and glass lites at the bottom of the grade and haul them up by pickup, similar to how we handle Mountain View Therma-Tru service logistics, inspecting for freight damage along the way. We plan the logistics during the estimate so the install day doesn’t stall.
Los Altos Hills sits in the wildland-urban interface, which makes ember intrusion a real concern. Your entry door itself typically doesn’t need a fire rating under standard residential code, but the weatherstrip, sweep, and perimeter seal absolutely need to be tight to keep embers out. We inspect and re-set the full perimeter on every Therma-Tru service call in Los Altos Hills. If you want a door specified for best wildfire performance, we’ll walk you through the options. Call (833) 756-5936 for details.
Usually yes, but rarely without some rough-opening work. Los Altos Hills homes from that era often have non-standard framing that has drifted over decades. We measure the actual opening, not the nominal size, and order the slab to fit. If the frame has racked enough, we rebuild it square before the door goes in. The door gets specified to the opening, not the other way around. Call (833) 756-5936 for an exact quote, estimates are free.
Service Areas Near Los Altos Hills
We serve Los Altos Hills and the surrounding hillside communities, including Therma-Tru service in Palo Alto and Therma-Tru service in Stanford. If your driveway is steep, your lot is wooded, or your 1970s custom frame won’t stop sticking, we’ll come look.
Book Your Therma-Tru Service in Los Altos Hills Today
Call (833) 756-5936 to schedule your free Therma-Tru inspection and estimate. We’ll check the slab, sill pan, frame, weatherstrip, and drainage path, then tell you exactly what needs to happen and what it costs.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Los Altos Hills.