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Therma-Tru Construction in Tiburon, CA | Milpitas Construction
We install and service Therma-Tru door systems across Tiburon, and the short answer is this: we’re an independent contractor, not authorized or sponsored by Therma-Tru, and the reason we specify their fiberglass and steel lines is simple. They hold up to the marine layer off Richardson Bay when they’re flashed and sealed correctly, and on Tiburon’s steep hillside lots, that installation detail is everything. Call (877) 752-4194 for a free estimate from Ken Stafford and the Milpitas Construction team.
Why Tiburon Residents Choose Us for Therma-Tru Service
We’ve handled enough Therma-Tru doors on the Tiburon Peninsula to know exactly where they fail and why. Salt air, seasonal slope movement, and fog-belt moisture create a specific set of problems that flat inland jobs never see. We stock Therma-Tru sales & service knowledge and OEM parts to address them quickly. Ken Stafford built his trade on Bay Area residential work that has to stand up to soil shifts and seismic quirks, and he applies that same no-shortcuts standard to every prehung unit we set in Tiburon. Our approach is straightforward: measure the access route before ordering, specify marine-grade fasteners where factory galvanized screws won’t survive, and rebuild frames rather than sell doors people don’t need.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Tiburon
- Salt-corroded hinges, strike plates, and threshold screws on bay-facing entries. Wind off Richardson Bay carries salt that eats through factory galvanized hardware long before the fiberglass slab shows wear. We replace with stainless or marine-grade fasteners and OEM hinges rated for coastal exposure.
- Rotted wood bottom rails and jamb legs on older Classic-Craft doors. The fog-belt moisture in Tiburon sits on sills and wicks into any break in the factory finish. Once the bottom rail has taken on water through failed finish, the honest fix is usually replacement.
- Racked prehung frames from seasonal clay-soil settlement. Many Tiburon hillside homes sit on pier-and-grade foundations that shift with winter rain. Door frames go out of square, slabs drag on the strike side, and latches stop catching. We re-square the rough opening and reset frames with adjustable shims tied to the structure.
- Dinged slabs and frames from craned-over-the-house deliveries. Tight hillside staging on Belvedere and Tiburon streets means doors get craned or hand-carried up slopes. If the factory finish gets compromised during the move, moisture wicks into the fiberglass edge and rail, and that door won’t last.
- Multi-point hardware that binds after small frame shifts. Therma-Tru patio and exterior door systems with multi-point locks are unforgiving when a frame moves even slightly. We diagnose whether the issue is hardware alignment or actual structural settlement before recommending a fix.
Therma-Tru Service in Tiburon: What Local Conditions Mean for Your Equipment
On Belvedere and Tiburon hillside streets, lots are often so steep that a full prehung Therma-Tru unit can’t reach the entry by truck and has to be craned over the house or hand-carried up the slope. In Old Tiburon and the hillside streets above Main Street, we measure the access route before ordering, because a returned door here costs a second crane. That access reality, combined with neighbors’ protected views that make even a second-story addition a design-review fight, means door and window changes on the Peninsula get planned around sightlines and staging, not just the opening. We’ve walked away from door orders when we realized the crane couldn’t reach, and we’ve re-spec’d the swing direction because the view corridor mattered to a neighbor. For Therma-Tru owners in the 94920 ZIP, this means the install plan matters as much as the door slab.
Therma-Tru Models & Products We Service in Tiburon
We work on the full Therma-Tru residential lineup that shows up in Tiburon homes: Classic-Craft entry doors in both the American Style and Canvas collections, Smooth-Star fiberglass entry doors, Fiber-Classic entry doors, and Therma-Tru patio and exterior door systems with multi-point hardware. For parts, we use Therma-Tru OEM hinges, sills, sweeps, and weatherstrip wherever the frame is sound. When the frame is rotted or racked but the slab is intact, we rebuild the frame rather than sell a whole new door. We keep common OEM weatherseal, hinge, and sweep parts staged for Tiburon jobs so turnaround doesn’t stall while parts ship.
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AfterTherma-Tru Service Pricing in Tiburon
Door work in Tiburon prices differently than flatland Marin jobs because of access and coastal conditions. Here’s what our pricing looks like for door-related scope on the Peninsula:
| Scope | Typical Range |
|---|---|
| Entry or exterior door replacement (part of window/door scope) | $4,500 – $15,000 |
| Impact-rated exterior opening installation | $8,000 – $25,000 |
| Home addition including new exterior door assemblies | $45,000 – $130,000 |
What drives cost in Tiburon specifically: crane or staging logistics on no-driveway lots, marine-grade hardware upgrades, and any design-review or coastal-adjacent approvals that slow the permit path. A free estimate from us includes a written line-item quote and a straight answer on whether repair or replacement is the honest call. Call (877) 752-4194 to schedule one.
Serving Tiburon, CA — Our Local Coverage Area
We’re based in the Tiburon 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 Tiburon
On Tiburon hillside homes with pier-and-grade foundations, seasonal clay-soil movement typically racks the prehung frame out of square, which makes the slab drag and the latch misalign. We check the frame with a level and plumb bob before touching hardware, because tightening hinges on a racked frame just masks the problem. Call (877) 752-4194 and we’ll diagnose it on-site with a free estimate.
Yes, and we do it regularly on Belvedere and Tiburon hillside streets. We measure the access path before ordering; if the crane can’t reach, we hand-carry the unit up the slope and plan staging around the neighbor’s view corridor. The access plan is part of every door quote we write for the 94920 ZIP.
The fiberglass slab itself holds up well, but the factory galvanized hinges, strike plates, and threshold screws will corrode faster on bay-facing entries. We spec stainless or marine-grade fasteners on those jobs, and we check the sill flashing because wind-driven saltwater gets into gaps that inland homes never see. The fix is in the hardware and flashing, not the slab.
It can, especially if the opening faces a protected view corridor or the home is in Belvedere’s hillside or waterfront overlay. A like-for-like replacement usually moves faster, but any change to swing direction, size, or glazing area can pull the project into Town of Tiburon design review. We flag that risk during the estimate so you’re not surprised by a condition on the permit.
Once a bottom rail has taken on water through failed finish, the rot usually extends into the jamb leg, and repair won’t buy you more than a year on a bay-facing Tiburon entry. We recommend replacement when the moisture has wicked that far, and we’ll spec a new unit with marine-grade hardware and a stainless sill pan. Call (877) 752-4194 and we’ll give you an honest on-site read.
Service Areas Near Tiburon
We serve the full Tiburon service area including Old Tiburon and the hillside streets above the waterfront. We also run jobs in Therma-Tru service in Belvedere and Therma-Tru service in Sausalito. Marin City is a short drive, and we take jobs across the Peninsula for the same reasons homeowners here call us: coastal conditions, hillside access, and door assemblies that need to stay square.
Book Your Therma-Tru Service in Tiburon Today
If your Therma-Tru door is sticking, corroding, or letting fog-belt moisture into the jamb, call (877) 752-4194 for a free estimate. Ken Stafford and the Milpitas Construction team know these hills and these doors. 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 Tiburon and the broader Marin County Peninsula.