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Therma-Tru Construction in Pacifica, CA | Ashford Contractors
Ashford Contractors provides independent Therma-Tru door installation, repair, and replacement across Pacifica. We’re not a manufacturer-authorized dealer, and that matters: we call out the components that struggle in this climate and upgrade them before they fail. If you need a Therma-Tru entry door, patio slider, or full door system that actually holds up to Pacifica’s salt fog and wind-driven rain, call (877) 752-3868 and we’ll walk the site with you.
Why Pacifica Residents Choose Us for Therma-Tru Service
We’ve installed and serviced hundreds of Therma-Tru door systems along the Pacifica coast, from Fiber-Classic entry doors to Smooth-Star patio sliders. Glen Mossier, our owner, grew up in Foster City’s Marlin Cove and trained in construction technology at Skyline College, so he understands what moisture does to a door assembly before the homeowner ever sees the damage. We also provide Therma-Tru repair in San Bruno and surrounding areas. We know which Therma-Tru components corrode first in marine air, which seals give out under wind-driven rain, and when a repair makes sense versus when the whole system needs to go. Our crew answers the phone, shows up when we say we will, and quotes the work honestly.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Pacifica
Therma-Tru builds solid fiberglass door systems, but Pacifica tests them harder than most climates. Here are the failures we see most often on local homes:
- Salt-air corrosion on aluminum thresholds and hinges. On Fiber-Classic entry doors near the water, the aluminum threshold pits and the hinges develop white corrosion within a few years. The door starts to stick, then the sweep stops sealing, then water gets in.
- Fog-driven moisture rotting the frame behind brickmold. Smooth-Star patio doors on west-facing homes take wind-driven fog that creeps behind the brickmold. The wood subframe wicks moisture and rots, even though the fiberglass slab itself looks fine.
- UV and salt fading on Classic-Craft finishes. Pacifica gets enough sun breaks between fog banks that Classic-Craft Mahogany doors can chalk and shift color unevenly. The factory finish dulls on the ocean side while the interior stays rich.
- Wind-driven rain blowing past worn sweeps on Pulse sliders. During winter storms, horizontal rain pushes past the bottom sweep on Pulse factory-finished sliders. Rugs get wet, engineered flooring swells, and the homeowner finds water pooled at the track.
- Bottom sweep and threshold failure years ahead of schedule. The persistent damp here means door sweeps compress, crack, or harden faster than they would inland. We replace sweeps and thresholds routinely on Pacifica homes that are only five to seven years old.
Therma-Tru Service in Pacifica: What Local Conditions Mean for Your Equipment
Pacifica’s coastal fog belt keeps exterior door surfaces damp for much of the year. Unlike Redwood Shores or San Mateo, where a door gets wet during a storm and then dries out, many Pacifica neighborhoods sit in a marine layer that leaves moisture on the slab, the sweep, and the threshold for weeks at a time. We also offer Therma-Tru service in South San Francisco for homes facing similar coastal conditions. That changes how Therma-Tru doors behave here. The bottom sweep and threshold become routine replacement items rather than lifetime parts. On a Fiber-Classic door in the Pedro Point neighborhood, we replaced a wood-framed entry that had wicked moisture through a failed threshold for years. We set a new Therma-Tru Fiber-Classic door on a composite sill with stainless hinges, then added a rain cap and backer-rod sealant so wind-driven fog drip sheds away from the opening instead of pooling behind the trim. The homeowner went through the following winter storms with no water intrusion. That’s the difference between installing a door for Pacifica and installing a door that happens to be in Pacifica.
Therma-Tru Models & Products We Service in Pacifica
We work on the full Therma-Tru lineup: Fiber-Classic entry doors, Smooth-Star fiberglass doors, Classic-Craft Mahogany collection doors, and Pulse factory-finished door systems. Our parts approach is specific to this climate. We source genuine Therma-Tru replacement parts, like sills, sweeps, hinges, and glass units, when they’re available. Where OEM parts are vulnerable to salt corrosion, we specify marine-grade stainless or composite aftermarket components instead. If the slab and frame are structurally sound, we repair. If rot or delamination has compromised the system, we recommend full replacement and tell you why before we quote the work. For more on our broader Therma-Tru capabilities, see our Therma-Tru sales & service page.
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AfterTherma-Tru Service Pricing in Pacifica
What you’ll pay depends on whether we’re repairing hardware, replacing a slab, or swapping the entire door assembly including the frame. The table below shows current pricing for adjacent scopes that often come up when a door has been leaking long enough to damage surrounding materials.
| Service | Price Range |
|---|---|
| Window Replacement (adjacent to door work) | $4500 – $15000 |
| Roof Repair (above-door flashing and leak work) | $400 – $1800 |
Every estimate is free and site-specific. We’ll check the slab, the frame, the sweep, the threshold, and the flashing above the door before we put a number on anything. Call (877) 752-3868 to schedule a walkthrough.
Serving Pacifica, CA — Our Local Coverage Area
We’re based in the Pacifica 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 Pacifica
Will a Therma-Tru fiberglass door hold up to Pacifica’s salt fog better than wood?
Yes. Fiberglass doesn’t absorb moisture the way wood does, so the slab itself won’t rot. The weak points are the metal components (hinges, thresholds) and the wood subframe around the opening. We address those with marine-grade stainless and composite parts. Call (877) 752-3868 if you want us to inspect what’s failing on your current door.
How often should I replace the bottom sweep on my Therma-Tru door in Pacifica?
On fog-exposed sides of the house, plan on checking the sweep every year and replacing it every two to three years. It’s a low-cost part that prevents expensive floor and subfloor damage. We keep common Therma-Tru sweeps in stock for Pacifica homes.
Can you repair a Therma-Tru door with a rotting bottom rail or do I need a full replacement?
If the fiberglass skin is delaminated or the bottom rail has soft wood behind it, repair usually doesn’t buy you much time. We recommend replacing the slab or the full system. If the slab is solid and only the frame or threshold has rot, repair is often viable and we’ll quote it that way.
What causes my Therma-Tru patio door to stick and drag after rain?
Swelling in the wood subframe, corrosion on the aluminum track, or a failed sweep that lets water pool under the rollers. On west-facing Pacifica homes, wind-driven rain behind the brickmold is the most common culprit. We’ll pull the trim, find the moisture path, and correct it rather than just greasing the track.
Do Therma-Tru doors meet Pacifica’s coastal building requirements for wind-driven rain?
Therma-Tru products are engineered for air and water infiltration resistance, but installation determines whether they perform here. The flashing, the sill pan, and the sealant details matter as much as the door itself. We install to exceed what Pacifica’s coastal exposure demands. For an exact assessment of your opening, call (877) 752-3868, and we’ll inspect it. Estimates are free.
Service Areas Near Pacifica
Our crew covers the coastal corridor and inland communities, including Foster City, Redwood Shores, Belmont, San Mateo, and San Carlos. If you’re in the Visitacion Valley and need Therma-Tru work, see our Therma-Tru service in Visitacion Valley page. We also serve Colma, close to the Daly City line, through our Therma-Tru service in Colma coverage.
For broader coverage in the area, visit our Pacifica service area page.
Book Your Therma-Tru Service in Pacifica Today
If your door is sticking, leaking, or showing rust on the hinges, don’t wait for the next big storm. Call Ashford Contractors at (877) 752-3868 and schedule your free Therma-Tru estimate. We also offer Therma-Tru service in Broadmoor and nearby communities. Build it right the first time, and you won’t be rebuilding it in ten years.
Written by Glen Mossier, Owner at Ashford Contractors, serving Pacifica and the greater San Mateo County area.