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Therma-Tru Construction in Broadmoor, CA | Toolbox Contractors
We provide independent Therma-Tru door and window construction service across Broadmoor, and the thing that sets our work apart here is simple: we know how county permitting and golf-course setback review shape every opening we cut or re-flash in this enclave. If you’re planning a Therma-Tru entry door replacement, a patio slider, or a full addition with new exterior doors in the 94015, we handle the framing, flashing, and finish work as one accountable contractor. Call (855) 382-3257 to talk through what you’ve got.
Why Broadmoor Residents Choose Us for Therma-Tru Service
Therma-Tru fiberglass and steel door systems have a reputation for durability, but they only perform as well as the rough opening they’re set into. We’ve spent years hanging, re-squaring, and re-flashing Smooth-Star, Classic-Craft, and Fiber-Classic entries across the fog-belt peninsula, so we know how these doors behave when marine fog sits on a shaded threshold for months at a time. Norm Castellano runs our crew, and his take on door work comes from untangling plenty of previous installations that looked fine in August and bound up by February. As an independent contractor, we’re not tied to any manufacturer’s install checklist. We work from what the opening actually needs. For Broadmoor homeowners that means honest guidance on repairs versus replacement, county-compliant flashing details, and no manufacturer-speak when a sill has been wicking water for years. Therma-Tru sales & service is a core part of our door-and-window scope, and we carry the OEM sills, sweeps, and weatherstripping these systems were designed to use.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Broadmoor
- Bottom-rail and sill rot on fiberglass entries. Broadmoor’s fog belt means thresholds stay shaded and damp long after a rain stops, and if the original flashing never shed water away from the jamb, the bottom rail soaks it up. The door skin itself won’t rot, but the composite rail under it will. We cut out the bad frame, re-flash the opening, and set a new pre-hung unit with positive drainage.
- Factory finish blistering along the lower stiles. On windward, fog-facing elevations, moisture gets trapped under the factory coating before it cures. We see it most on west-facing entry doors in Broadmoor where the onshore wind drives damp air against the slab for hours. The fix is usually refinishing after the moisture source is addressed, not just repainting.
- Racked or binding slabs after framing shifts. These are 1940s and 1950s tract-home frames on sandy lots. Add a county-era addition and the loads shift. A door that closed clean in dry weather drags at the top latch corner in the wet season. We re-square the opening and re-hang the slab before the reveal gaps get worse.
- Weatherstripping compressed flat by steady onshore wind. Exposed Broadmoor entries take driven fog and rain straight at the perimeter. When the sweep and Q-Lon weatherstrip flatten out, water gets past. We replace with OEM profiles and adjust the nailing flanges so the door sits tight against the frame.
- Patio slider drainage on golf-course-backing lots. Homes backing the Broadmoor Golf Course often have rear sliders that open to patios graded toward the foundation. Without a proper sill pan and sub-sill drainage, water migrates under the track. We re-flash and set the track on a sloped substrate so it drains away from the opening.
Therma-Tru Service in Broadmoor: What Local Conditions Mean for Your Equipment
Here’s the part most contractors won’t tell you: Broadmoor is an unincorporated San Mateo County enclave entirely surrounded by Daly City. So a door-and-opening change here goes through county building review, not city permitting, even though the house next door in Daly City permits through the city. That quirk changes how we sequence Therma-Tru work. When you’re adding a second-story or rear addition anywhere in Broadmoor, we plan door rough openings, header sizing, and flashing details around county review timelines. And if your home backs the Broadmoor Golf Course, the county applies extra setback and view-corridor scrutiny to any new exterior door on the rear elevation. We’ve coordinated inspections on fairway-backing homes where the door and the addition had to clear in one pass. None of that applies in Daly City proper for Therma-Tru repair, and it’s exactly the kind of thing that stalls a project if you don’t know it’s coming.
Therma-Tru Models & Products We Service in Broadmoor
We work on the full Therma-Tru lineup that shows up in Broadmoor homes: Smooth-Star fiberglass entry doors, Classic-Craft collection entries, Fiber-Classic doors, and Therma-Tru patio and sliding glass door systems. Our parts approach is straightforward. Where the existing door system is structurally sound, we use Therma-Tru OEM replacement sills, sweeps, hinges, and weatherstripping. When an OEM part is discontinued, we spec quality aftermarket hardware, not whatever’s on the shelf at the big-box store. We stock common OEM profiles locally so Broadmoor service calls don’t wait on parts shipped from the manufacturer. For window and door openings on additions, we set Therma-Tru systems alongside impact-rated and low-E glazing where the county plan review calls for it.
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AfterTherma-Tru Service Pricing in Broadmoor
Door and window work in Broadmoor falls into the same ballpark as the rest of the peninsula, but the condition of the existing rough opening drives the final number. A clean slab replacement costs less than a rotted jamb that needs the stucco cut back and the opening rebuilt. Here are typical ranges for the Therma-Tru-related work we handle here:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition (with new exterior doors) | $45,000 – $130,000 |
Every estimate includes a written line-item quote, not a lump sum. We walk the opening with you, check the frame, the flashing, the drainage, and the county requirements, and then we tell you exactly what it needs. Call (855) 382-3257 to schedule your free estimate.
Serving Broadmoor, CA — Our Local Coverage Area
We’re based in the Broadmoor area and know this community well, and we also provide Therma-Tru repair in Colma. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Therma-Tru Construction in Broadmoor
The fiberglass skin doesn’t rot, but the composite bottom rail behind it will. What you’re seeing is water wicking up from a threshold that stays damp because Broadmoor’s fog keeps it shaded and wet for months, and the original flashing never shed water away from the jamb. The fix is re-flashing the opening and setting the door with positive drainage, not just replacing the sweep. Call (855) 382-3257 and we’ll tell you whether the slab is salvageable or the whole unit needs to come out.
Yes, but the county applies setback and view-corridor review to fairway-backing homes in Broadmoor, so any new rear exterior door needs to be shown on the plans and cleared through county review. We coordinate the door rough opening and flashing details with that review so the door and the addition clear in one pass. Call (855) 382-3257 before you finalize the design.
Probably not. Broadmoor homes are 1940s and 1950s post-war frames on sandy lots, and they shift with seasonal moisture. What you’re feeling is the opening racking slightly. The door usually needs the frame re-squared and the hinges re-set, not a whole new slab. In the wet season the change is more pronounced. Get a free estimate at (855) 382-3257 and we’ll check the reveal gaps before recommending anything.
Yes, we set fire-rated Therma-Tru assemblies where the county building review calls for them, and impact-rated units on windward elevations or where plan check requires storm-rated openings. The county plan review for Broadmoor additions and ADUs often specifies both, and we handle the submittal coordination as part of the door package. Call (855) 382-3257 to review what your plans require.
Entry door replacement typically runs $1,500 – $4,000 for a pre-hung fiberglass unit with OEM thresholds and sweeps, depending on whether the rough opening needs rebuilding. When the door is part of a larger scope like a home addition, the door work folds into that budget range of $45,000 – $130,000. Call (855) 382-3257 for an exact quote – estimates are free.
Service Areas Near Broadmoor
We serve Broadmoor and the wider peninsula, including Daly City, Colma, South San Francisco, Pacifica, and San Bruno. If you’re in a neighboring ZIP and want independent Therma-Tru door or window service, Broadmoor service area coverage extends to you. We also handle Therma-Tru work in nearby San Francisco neighborhoods like Therma-Tru service in Mission District and Therma-Tru service in Noe Valley.
Book Your Therma-Tru Service in Broadmoor Today
If you’re in Broadmoor and your Therma-Tru door is binding, wicking water, or needs a new opening as part of an addition, call us at (855) 382-3257 for a free estimate. We also offer South San Francisco Therma-Tru service. Tell me what you’ve got and I’ll tell you what it actually needs.
Written by Norm Castellano, Owner at Toolbox Contractors, serving Broadmoor, Pacifica Therma-Tru service, and the San Mateo County peninsula.