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Therma-Tru Construction in Colma, CA | Daly City Construction
We provide independent Therma-Tru door installation and repair across Colma’s 94015 ZIP, and the thing that makes our work here different is simple: most of the Therma-Tru doors we hang in this town go into mortuary, chapel, and cemetery utility buildings, not houses. So we spec and service them for constant traffic and fog-side moisture, not curb appeal. Call (866) 505-5254 to schedule a free estimate.
Why Colma Residents Choose Us for Therma-Tru Service
We handle Therma-Tru entry and patio systems every week across the 94015 corridor, from Fiber-Classic slabs to Smooth-Star prehung units. Noel Cabrera, owner of Daly City Construction, grew up in the Westlake district of Daly City and trained in construction technology at City College of San Francisco before running residential and commercial jobs across San Mateo and San Francisco counties. That flood of fog-weather experience matters here, because Therma-Tru doors in Colma don’t fail the way they do inland. We know what a delaminating fiberglass bottom rail looks like after five years of Colma damp, and we know when to replace a jamb versus a whole prehung unit. As an independent contractor, we’re not authorized, sponsored, or warranty-backed by Therma-Tru. What we are is a local general contractor that installs and services more Therma-Tru sales & service work in this fog belt than most shops see in a year.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Colma
Here’s what we’re actually called out to fix, and why it shows up the way it does here:
- Fog-belt delamination at the bottom rail. Fiberglass slabs in Colma take on moisture where the sweep meets the threshold. The skin starts to swell and separate. We see this constantly on cemetery and chapel doors that face the ocean-side weather without much overhang. Slope and drainage matter as much as the door itself.
- Rotted jamb legs and sub-sills on prehung units. Fiber-Classic and Smooth-Star prehung doors set under a shallow or missing overhang collect water at the base. The wood jamb legs go soft. The sub-sill rots. We pull the unit, replace the frame, and keep the sound slab whenever possible.
- Finish failure on Tru-Definition steel doors. The wet-dry cycle in Colma, plus salt-laden fog off the Pacific, peels factory paint and blisters the topcoat. Once rust gets a foothold, it spreads fast. We strip, treat, and refinish only when the steel is still structurally sound.
- Failed weatherstripping and multipoint hardware. The frame racks over time, the weatherstripping quits sealing, and damp air drives condensation and mold on the interior face. We source genuine Therma-Tru replacement sweeps, weatherstripping, and hinge kits to keep original tolerances.
- Off-spec threshold transitions on uneven ground. Colma’s saturated soils settle differently than Daly City’s hillsides or Brisbane’s slopes. Thresholds shift, sweeps drag, and doors bind. We reset the threshold and re-shim the frame before a small gap becomes a full door replacement.
Therma-Tru Service in Colma: What Local Conditions Mean for Your Equipment
Here’s something a generic Therma-Tru page won’t tell you: with roughly 1,500 living residents against more than a million burials across about 17 cemeteries, almost every Therma-Tru door we hang in Colma goes into a mortuary, chapel, columbarium, or cemetery utility building. Not a house. So entry doors here are specified for constant traffic and heavy fog-side weathering, and they fail in predictable ways. The bottom rails swell first. The jamb legs on the weather side go soft. The factory finish on steel starts bubbling after enough fog cycles. We build our Colma service approach around those facts. When a chapel office off the cemetery rows in the 94015 ZIP called us about a pair of Smooth-Star entry doors that wouldn’t close, our crew pulled the units and found swollen bottom rails and soft jamb legs from years of fog-side moisture. We replaced the rotted sub-sill and jamb legs, reset new OEM sills and sweeps, and rehung the sound slabs with fresh weatherstripping and hardware. The doors now seal tight against the coastal damp, and the building owner isn’t chasing ongoing water intrusion. “Tell me what the house needs, not what you think it needs, then we’ll figure out the right fix.” That’s how we approach every Colma job.
Therma-Tru Models & Products We Service in Colma
We work on the Fiber-Classic Collection, Smooth-Star fiberglass doors, Tru-Definition steel doors, and Therma-Tru patio and French door systems with rot-resistant frames. When we repair, we source genuine Therma-Tru replacement sills, sweeps, weatherstripping, and hinge and hardware kits so the slab and frame keep their original tolerances. We use quality aftermarket glass and finish products only where OEM is unavailable. If the slab is sound but the jamb and sill are rotten, we replace the frame and keep the door. If the fiberglass skin is delaminating or the steel is rusted through, replacement is the honest call. For Colma turnaround, we keep common sweeps, threshold caps, and weatherstripping profiles stocked locally so chapel and mortuary doors aren’t down while parts cross the country.
See the difference
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AfterTherma-Tru Service Pricing in Colma
What you’ll pay depends on whether we’re replacing a threshold and sweep, reframing a weather-side jamb, or doing a full prehung swap. The larger door work often pairs with other scopes we handle, since Colma property owners tend to fix the whole opening, not just the slab. Here are the relevant ranges:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Roof Repair | $400 – $1,800 |
| Home Addition | $45,000 – $130,000 |
Every estimate is a written line-item quote. We walk the opening, check for water intrusion, and tell you exactly what the door needs before we ever pick up a tool. Call (866) 505-5254 to schedule a free estimate.
Serving Colma, CA — Our Local Coverage Area
We’re based in the Colma area and know this community well. Use the map below to see our service coverage — if you’re nearby, including areas where we provide Therma-Tru repair in South San Francisco, we can almost certainly help.
FAQs – Therma-Tru Construction in Colma
No, and we are upfront about that. Daly City Construction is an independent contractor. We install and service Therma-Tru doors regularly across Colma service area, and we source genuine Therma-Tru replacement parts wherever they’re available, but we are not authorized, sponsored, or warranty-backed by the manufacturer. If you need a factory warranty claim processed, we’ll point you to the right channel. If you want the door fixed correctly without the runaround, call (866) 505-5254.
Yes, and in Colma that is usually the right way to scope the job. A door that fails from fog-side moisture is often getting water from a failed drip edge or a window above it. We handle window replacement, roof repair, and home additions under the same general contracting license, so the door, flashing, roof edge, and surrounding openings get one point of accountability instead of three separate subs pointing fingers.
Most slab rehangs, threshold resets, and weatherstripping replacements are one-day jobs. If we’re pulling a prehung unit to replace rotted jamb legs and a sub-sill, expect two to three days. Full door replacement with finish work runs about a week. Colma’s cemetery and chapel doors are frequently on tight schedules, and we know how to sequence a replacement so the building stays operational while we work. We apply that same efficiency to our Pacifica Therma-Tru service.
Fiber-Classic Collection, Smooth-Star fiberglass, Tru-Definition steel, and Therma-Tru patio and French door systems with rot-resistant frames. We service all standard sizes and most custom orders, and we are familiar with the OEM sills, sweeps, and hardware profiles that keep these units sealing properly in Colma’s damp air.
If we’re replacing a sweep, threshold cap, and weatherstripping on a sound slab, it lands in the lower hundreds. Full frame replacement on a prehung unit runs higher, and a complete door swap typically falls into the $2,000 to $5,000 range depending on size, glass, and finish. The honest answer is that until we inspect the jamb, sill, and slab, any number is a guess. Call (866) 505-5254 for an exact quote, estimates are free.
Service Areas Near Colma
We serve Therma-Tru service in Visitacion Valley across the border, plus Therma-Tru service in Noe Valley, Daly City, Broadmoor, and Brisbane. If you are in the 94015 ZIP or within a few blocks of it, we are close by and familiar with your weather.
Book Your Therma-Tru Service in Colma Today
If a Therma-Tru door in your Colma building is swelling, rotting, or no longer sealing, let us look before it gets worse. Call (866) 505-5254 to schedule your free estimate. We’ll walk the opening, explain exactly what the door needs, and give you a written quote that makes sense.
Written by Noel Cabrera, Owner at Daly City Construction, serving Colma and the surrounding fog belt, with Therma-Tru repair in Broadmoor also available.