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Therma-Tru Construction in Palo Alto, CA | Iron Beam Contractors
We provide independent Therma-Tru door installation and retrofit service across Palo Alto, including full rough-opening rebuilds on Eichler homes. The one thing that sets our work apart here: we treat a Therma-Tru door swap in Palo Alto as a structural and permitting job, not a cosmetic replacement, because so many of these homes have exposed post-and-beam walls and no wall cavity to hide mistakes. If you own a Palo Alto home built in the 1950s or 60s, you already know what we mean. Call (833) 756-5936 for a free estimate.
Why Palo Alto Residents Choose Us for Therma-Tru Service
Therma-Tru is an independent manufacturer, and so are we. Iron Beam Contractors is not authorized by Therma-Tru and we don’t claim to be. What we bring instead is years of hands-on experience installing and retrofitting Therma-Tru Smooth-Star, Classic-Craft, and Fiber-Classic entry systems into the exact kind of openings that make Palo Alto door work unusual. Thin-slab walls. Out-of-square rough openings. Radiant heat running right to the threshold. Our team, led by Nolan Driscoll, has rebuilt more Eichler door openings than we can count, and we’ve learned that the door slab is rarely the hard part. The hard part is what’s behind it.
We choose Therma-Tru because the modular sidelite and glass-lite options fit the flush, flat-roof elevations common in south Palo Alto without looking bolted-on. And because we’re a Palo Alto General Contractor, we can handle the structural header work, the flashing, the stucco patch, and the city documentation under one contract. One contractor, every phase. That matters when the door is tied to a post-and-beam wall that was never designed for a modern pre-hung unit.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Palo Alto
- Sun-bleached, chalky facing on west-facing Fiber-Classic doors. Palo Alto’s low-eave ranchers don’t always shade the entry the way a two-story colonial would. Unshaded afternoon sun hits the Fiber-Classic surface for hours, and over a decade the factory finish chalks and dulls. We strip, re-profile, and refinish when the slab is sound, or swap in a matching Smooth-Star slab when the facing has gone too far.
- Delaminated bottom rails and rotted sills where the threshold sat flush to a concrete slab. This is the Eichler signature failure. The original Therma-Tru threshold often sits directly on the slab with no real pan flashing, and during the winter rainy season water wicks under the door and sits there. We see this constantly in the Eichler tracts south of Oregon Expressway. The fix is a rough-opening rebuild, not a door swap.
- Failed weatherstripping and sagging hinge jambs on post-and-beam entries. An Eichler’s non-structural jamb flexes seasonally as the exterior stucco and interior post-and-beam frame expand and contract at different rates. The door starts dragging, the weatherstripping tears, and the reveal goes out of square. We re-hang, re-shim, and often replace the jamb legs entirely.
- Glass-lite seal failure in late-90s to 2000s Therma-Tru installations. Those units are now hitting the 20-year mark, and fogged sidelites and door glass are showing up all over Palo Alto. When the fiberglass slab is still sound, we replace the glass lite and reseal rather than pulling the whole door. The caming and Simulated Divided Lite patterns on Classic-Craft and Fiber-Classic doors can be matched.
- Radiant-slab interference at the threshold. Palo Alto’s thin-slab radiant heat runs right to the perimeter in many Eichler and rancher homes. Cutting into the threshold area to install a new pre-hung Therma-Tru unit without knowing where those hydronic lines run is a risk we see homeowners take with handymen. We locate the lines before we cut, every time.
Therma-Tru Service in Palo Alto: What Local Conditions Mean for Your Equipment
Here’s the thing about Palo Alto that most door installers from outside the area don’t understand until it’s too late. In the Eichler tracts, exterior walls have little to no cavity. The original thin-slab radiant heat runs right to the perimeter of the house. So replacing a Therma-Tru entry door and its rough opening is not a like-for-like swap. It’s exposed-structure surgery. You’re opening a post-and-beam wall that doesn’t hide anything, and what you do there is visible to the city’s individual design review process and, often, to a neighbor-facing public notice. We’ve documented rough-opening rebuilds on Eichler homes near Greer Park where the city wanted the framing detail and flashing detail on record before we closed anything up. A door swap in Palo Alto is a permitting exercise with a door attached to it. That’s not true in most of California, and it’s absolutely true here.
Therma-Tru Models & Products We Service in Palo Alto
We service and install Therma-Tru Smooth-Star fiberglass entry doors, Classic-Craft fiberglass entry doors, Fiber-Classic entry doors, and the full range of Therma-Tru door glass lite collections including Simulated Divided Lite patterns and caming options. If you’re buying a new slab, we use OEM Therma-Tru doors, frames, and glass lites so the warranty and fit hold. Where OEM profiles don’t suit an out-of-square Eichler opening, we’ll use quality aftermarket sills and weatherseal rather than forcing a part that doesn’t belong. We don’t stock every Therma-Tru SKU in a Palo Alto warehouse, but we know what fits the common openings here and can usually turn a door replacement around without weeks of waiting. Our Therma-Tru sales & service page has more on the lines we carry.
See the difference
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AfterTherma-Tru Service Pricing in Palo Alto
Door work in Palo Alto prices differently depending on whether you’re repairing the existing slab or replacing the rough opening. A straight slab replacement runs lower. A full rough-opening rebuild on an Eichler with city documentation, new pan flashing, and a rebuilt sill runs higher, because it’s structural work. Here’s our standard line-item pricing for related services. A free estimate from us includes the door, the opening, the finish work, and the paperwork. Call (833) 756-5936 to schedule one.
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Metal Roof Installation | $15,000 – $40,000 |
Serving Palo Alto, CA — Our Local Coverage Area
We’re based in the Palo Alto area and know this community well, including Therma-Tru service in West Menlo Park. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Therma-Tru Construction in Palo Alto
Yes, in many cases it does, especially on Eichler homes in the designated south Palo Alto tracts. Palo Alto’s individualized review of single-family projects means any exposed-structure work on a post-and-beam wall can trigger design review and a neighbor-facing public notice. We handle the documentation and detail drawings as part of the job. Call (833) 756-5936 for an exact answer on your specific property.
The original thresholds were often set flush to the concrete slab with inadequate pan flashing, and during the winter rainy season water wicks under the door and saturates the sill and bottom rail. Add the seasonal flex of a non-structural post-and-beam jamb, and you get delamination, rot, and sagging all at once. The door slab is usually fine. The opening needs to be rebuilt. That’s the honest fix.
Yes, when the fiberglass slab is sound. Fogged or failed glass lites in late-1990s to 2000s Therma-Tru doors can usually be replaced and resealed without pulling the slab. We match the original Simulated Divided Lite or caming pattern so the door looks right. Call (833) 756-5936 and we’ll tell you within a site visit whether the slab is worth saving.
No. We are an independent general contractor with deep Therma-Tru installation and retrofit experience, but we are not manufacturer-authorized or affiliated. We use OEM Therma-Tru slabs, frames, and glass lites because they fit, hold warranty, and perform. Being independent means we can tell you when a repair is the right call instead of pushing a replacement we don’t need to sell.
We handle the whole thing: rough-opening rebuild, new pan flashing, OEM sill, structural header work if needed, stucco patch, and city documentation. That’s the only way to fix an Eichler door correctly. We don’t swap slabs into a bad opening and walk away. Call (833) 756-5936 to schedule a free estimate and we’ll scope the full job.
Service Areas Near Palo Alto
We serve Palo Alto and the surrounding South Bay and Peninsula communities, including Stanford, Ladera, and nearby neighborhoods across 94303, 94304, 94306, and 94309. If you’re in one of these areas and need Therma-Tru work, call us. We also maintain service coverage through our Palo Alto service area page, and we run dedicated Therma-Tru pages for Therma-Tru service in Stanford and Therma-Tru service in Ladera for homeowners researching their specific neighborhood.
Book Your Therma-Tru Service in Palo Alto Today
If your Therma-Tru door is chalky, swollen, sagging, or holding water at the sill, call (833) 756-5936. Estimates are free, and we’ll tell you honestly whether you need a repair, a replacement, or a full rough-opening rebuild. We serve all of Palo Alto, and we can usually get to your property quickly.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Palo Alto and the surrounding Peninsula communities.