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Therma-Tru Construction in San Francisco, CA | Bradford Remodeling
We provide independent Therma-Tru entry and patio door installation, repair, and replacement across San Francisco. The one thing that makes our work different here: we know which Therma-Tru lines fail in this city’s fog belt and salt air, and we plan the repair around that reality instead of guessing. If you need a Fiber-Classic door re-hung, a Smooth-Star bottom rail addressed, or a full replacement that clears historic facade review, call (903) 568-7222 for a free estimate.
Why San Francisco Residents Choose Us for Therma-Tru Service

Curtis Lane, owner of Bradford Remodeling, trained in construction technology at Los Angeles Trade-Technical College and spent two decades working foundation-to-finish before running this operation. That background matters when a Therma-Tru door in a Marina Victorian has a frame issue that traces back to how the rough opening was framed in 1923. Our crew has installed and serviced Therma-Tru systems across San Francisco for over a decade, from Marina Victorians to Noe Valley flips. We know the Fiber-Classic and Smooth-Star lines down to the sill and hinge adjustments, so we can tell you whether a door needs a new frame, a new slab, or just a hardware overhaul. And because we’re an independent Therma-Tru service provider – not a manufacturer-authorized shop – we answer to you, not a brand rep.
Every job gets a written price before work starts. Every completed job gets the 365-Day Done Right Promise: if the work fails within a year, we come back and fix it at no charge. That’s The Garrison Standard, and it’s how we’ve operated since 2004 as part of the Garrison Partners family.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in San Francisco
- Delaminating Fiber-Classic and Classic-Craft door skins. Interior humidity from kitchens and baths, combined with prevailing damp westerly winds, causes fiberglass skins on west-side doors to blister and separate. We see it most often in the Sunset and Richmond districts. The fix is either a skin repair where the panel is intact, or a full slab replacement when the substrate has soaked through.
- Rusted Smooth-Star bottom rails. Older San Francisco buildings have notoriously shallow roof overhangs. Rain splashes off stair landings and keeps the sill wet for hours after a storm. On Smooth-Star steel doors, rust creeps under the factory finish at the bottom rail until the door is compromised. We address the rail and correct the water-shedding issue at the sill so the replacement doesn’t fail the same way.
- Corroded multi-point lock and hinge hardware on Therma-Tru patio doors. Salt-laden fog is a fact of life in San Francisco. After enough seasons, patio door hardware corrodes and misaligns. Doors start sticking, sagging, or drafting, and no amount of weatherstripping fixes it. We replace with OEM multi-point locks and hinges for exact fit.
- Swollen or rotted door frames in the fog belt. North-facing entries, particularly in neighborhoods like Glen Park and the Haight, never fully dry between fog cycles. Wood and composite jambs soak through and rot. By the time a homeowner notices the door sticking, the frame is usually shot. We replace the frame and often the slab, then add a sill pan to shed water properly.
- Doors that won’t close after years of settling. San Francisco sits on landfill, sand, and serpentine rock. Houses settle at different rates block by block. A Therma-Tru door that closed fine in 2010 might bind at the top corner by 2024. We re-shim, re-hang, and adjust the hinges so the door swings true without dragging.
Therma-Tru Service in San Francisco: What Local Conditions Mean for Your Equipment

Here’s the thing most Therma-Tru pages won’t tell you: San Francisco’s residential building code and historic preservation rules for Victorian and Edwardian facades often restrict changing the exterior profile of an entry door. In landmark districts, a Therma-Tru replacement must match the original door’s panel configuration, or the project goes through a historic resource review. That means the cheapest off-the-shelf slab from a big-box store can get a homeowner flagged by the planning department. We’ve worked through enough of these reviews on Belvedere Street in the Haight-Ashbury and around Alamo Square to know what gets approved and what stalls. If you’re in a historic district, we match panel profiles to the original, document the swap, and keep the paperwork straight so your door upgrade doesn’t become a code enforcement headache.
One call stuck with us: a homeowner on Belvedere Street called because their Therma-Tru Fiber-Classic entry door had swollen shut after years of fog and rain, and the bottom rail was soft. We removed the slab, found the frame had soaked through, and replaced both the frame and the door with a new Fiber-Classic unit. We reused the existing hardware and added a sill pan to shed water. That door now closes with one finger and has stayed true through two wet seasons.
Therma-Tru Models & Products We Service in San Francisco
We service the full Therma-Tru range, including the Fiber-Classic Collection (fiberglass entry doors), Smooth-Star Collection (steel entry doors), Classic-Craft Collection (premium fiberglass doors), and hinged patio and French door systems. For parts, we use OEM Therma-Tru replacement components – sills, hinges, multi-point locks, and weatherstripping – for exact fit and finish. High-quality aftermarket hardware only goes in when OEM is discontinued and a direct-match alternative exists. We keep common sill pans, weatherstripping profiles, and hinge sets stocked locally so San Francisco turnaround is measured in days, not weeks.
When a door’s frame or slab is structurally compromised, we’ll tell you straight and recommend full replacement rather than a patch that won’t last through a San Francisco winter. A cheap repair on a soaked frame is a second failure waiting to happen.
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AfterTherma-Tru Service Pricing in San Francisco

Here are the numbers, in writing. Therma-Tru entry door replacement in San Francisco typically runs between $5,310 and $17,700 depending on the model, frame condition, and historic review requirements. That’s the door, frame where needed, labor, and hardware. Our broader General Contractor in San Francisco service ranges, drawn from the same pricing model we use for remodel work across the city:
| Service | San Francisco Price Range |
|---|---|
| Full Kitchen Remodeling | $16,520 – $53,100 |
| Full Bathroom Remodeling | $10,620 – $33,040 |
| Roof Repair | $470 – $2,125 |
| Window Replacement | $5,310 – $17,700 |
What drives cost on a Therma-Tru job: whether the frame is salvageable, whether historic review is required, which model line you’re replacing, and what’s happening at the sill. Your free estimate for our Kitchen Remodeling in San Francisco or door work includes a written line-item price before any work starts. Call (903) 568-7222 to schedule yours.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco 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 San Francisco
My Therma-Tru Fiber-Classic door has a crack in the fiberglass skin – can it be repaired or do I need a new door? It depends on how deep the crack goes and whether moisture has reached the substrate inside the slab. A surface crack in the gel coat or a small skin split can often be repaired with a fiberglass patch and refinish. If the crack goes through to the core and the door feels soft or spongy in that spot, the slab is done and we’ll recommend replacement. Call (903) 568-7222 and we’ll assess it in person.
Does San Francisco’s fog and salt air affect Therma-Tru door hardware? Yes, and it happens faster in San Francisco than almost anywhere else in California. Salt-laden fog corrodes multi-point locks, hinges, and strike plates on Therma-Tru patio doors and entry systems, especially in the Sunset, Richmond, and areas near the bay. We replace with OEM hardware and adjust alignment so the door seals properly again. If your door is sticking or a lock is hard to turn, no amount of lubricant fixes the underlying corrosion. Call (903) 568-7222 for a straight diagnosis.
Can I replace just the Therma-Tru door slab and keep my existing frame? Sometimes, but only when the frame is dry, square, and structurally sound. In San Francisco’s fog belt, many frames we open up are soaked through even when the homeowner assumes only the door failed. We check the frame with a moisture meter before recommending slab-only replacement. If the frame is good, we’ll absolutely reuse it and just swap the slab. If it’s not, a slab-only job would waste your money.
Will a Therma-Tru door meet San Francisco’s historic preservation requirements? Yes, provided the panel configuration matches the original door’s profile or the replacement goes through a historic resource review first. San Francisco’s building code is strict about changing the exterior profile of entry doors in landmark and historic districts. We match Therma-Tru models with period-appropriate panel layouts, document the work, and handle the review process. This is one area where working with a crew that knows the local code saves you weeks of delay.
What’s the typical cost to replace a Therma-Tru entry door in San Francisco? Most Therma-Tru entry door replacements in San Francisco run from $5,310 to $17,700, with the final number depending on model line, frame condition, hardware, and whether historic review applies. Your free estimate is a written line-item quote, so the number on paper is the number you pay. Call (903) 568-7222 for an exact figure on your door.
Service Areas Near San Francisco
Bradford Remodeling serves San Francisco and the surrounding Bay Area cities. For Therma-Tru work deeper into California, see our Therma-Tru sales & service coverage. We also provide Therma-Tru service in Fresno and Therma-Tru service in Sacramento through our network. Check our broader San Francisco service area page for neighborhood-by-neighborhood coverage.
Book Your Therma-Tru Service in San Francisco Today
Straight number, real scope, no surprises at the punch list. If your Therma-Tru door is sticking, rusting, leaking air, or just looks tired, call (903) 568-7222 for a free estimate. A live person answers, and you’ll get a written price before any tool comes off the truck.
Written by Curtis Lane, Owner at Bradford Remodeling, serving San Francisco since 2004.











