Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Therma-Tru Construction in San Antonio Heights, CA | Sycamore Contractors
We provide independent Therma-Tru door installation, repair, and retrofit service across San Antonio Heights, from single entry-door swaps to full window-and-door packages on hillside remodels. The thing that sets our Therma-Tru work apart here is simple: we’ve installed and repaired these door systems on enough terraced foothill lots to know how San Antonio Heights’ settlement, wind, and sun actually age a door. We quote repair versus replacement on the real condition of the slab and frame, not on any manufacturer quota. Call (877) 265-6284 to schedule a free estimate.
Why San Antonio Heights Residents Choose Us for Therma-Tru Service
We’ve hung, retrofitted, and repaired Therma-Tru door systems across the foothill and valley-floor markets long enough to know how the Fiber-Classic and Smooth-Star slabs, rot-resistant frames, and multipoint hardware actually hold up in inland heat and sun. Because we’re an independent contractor, we can tell you plainly when a door is worth saving and when replacement costs less over the long run. Nate Calloway, who owns Sycamore Contractors, grew up in the Redhawk neighborhood of Temecula and spent the better part of two decades running crews across Southwest Riverside County before expanding into the San Gabriel Valley foothills. That background means our crews show up knowing what slope, drainage, and wildland-urban-interface rules do to a door system. When a San Antonio Heights homeowner calls us about a Therma-Tru door that won’t latch or a threshold that’s pulling water, we diagnose the whole assembly, not just the symptom.
We also know these doors well enough to stock what matters locally: genuine Therma-Tru OEM hinges, sills, sweeps, weatherstrip, and multipoint hardware. Aftermarket pieces fit poorly and fail early in this heat. On a hillside home off the foothill streets of 91784, our crew pulled a sun-chalked Fiber-Classic entry door whose jamb had gone out of square as the hillside settled; the multipoint lock would no longer throw. We reset and shimmed the frame, replaced the rotted sill plus the OEM sweep and weatherstrip, then refinished the slab. The homeowner kept the original door instead of buying a new one. That’s the kind of repair judgment you only get from crews who’ve worked this terrain.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in San Antonio Heights
- Sun-baked fiberglass slabs on south- and west-facing entries. San Antonio Heights sits at the upper edge of the San Gabriel Valley, where summer sun is direct and relentless. Fiber-Classic and Smooth-Star doors on west-facing entries chalk and fade faster here than on the valley floor, and the factory stain finish breaks down sooner. We refinish slabs that are structurally sound and recommend replacement when the surface has degraded past reconditioning.
- Santa Ana wind damage to weatherstripping and sweeps. Wind events drive grit and heat past worn weatherstripping and door bottoms, letting dust and water into the threshold and rotting the wood subframe underneath. We see this constantly on older ranch homes. Replacing the sweep and weatherstrip early costs a fraction of reframing a rotted jamb later.
- Doors out of square on terraced hillside lots. San Antonio Heights lots are large and often cut into the hillside. As retaining walls move and grade settles, swinging doors shift, and latches plus multipoint locks stop engaging. We reset and shim jambs, replace sills, and rehang doors so the multipoint hardware throws cleanly again.
- WUI-driven degradation of vinyl sweeps and gaskets. Wildland-urban-interface exposure from surrounding chaparral means ember and radiant heat exposure degrades vinyl sweeps, gaskets, and door-bottom seals faster than in flat-lot subdivisions. Fire-resistant exterior detailing matters here in a way it doesn’t in Upland or Rancho Cucamonga below.
- Threshold rot from hillside drainage. Water moves downhill fast on these lots. When drainage isn’t directed properly, thresholds and wood subframes rot from the bottom up. We replace rotted sills with OEM components and reseal the base so the door assembly sheds water the way it was designed to.
Therma-Tru Service in San Antonio Heights: What Local Conditions Mean for Your Equipment
Here’s something a generic Therma-Tru page or a valley-floor contractor won’t tell you: because San Antonio Heights is unincorporated, construction permits and inspections run through San Bernardino County rather than a city building department. A Therma-Tru door swap on a hillside rebuild goes through county WUI review, which means the door assembly and adjacent glazing may need fire-rated or ember-resistant detailing that a door install in Upland or Rancho Cucamonga never triggers. On one rebuild in this neighborhood, we swapped in a fire-rated assembly specifically to satisfy county WUI review. That’s not optional paperwork; it’s a code-driven design constraint, and a contractor who has only ever pulled permits in incorporated cities below the foothills can miss it entirely. When you combine county WUI review with pier-and-beam or slab-on-grade foundations on sloped terrain, the margin for error on rough openings, jamb alignment, and weather sealing gets thin. We build to the standard the county and the brand both require.
Therma-Tru Models & Products We Service in San Antonio Heights
We service the full range of Therma-Tru product lines homeowners actually have here: Fiber-Classic Collection entry doors, Smooth-Star Collection doors, Pulse and ReliaBilt-style flush-glazed entry systems common on mid-century ranch remodels, and Therma-Tru sliders and patio door units in older custom homes. Our parts approach is straightforward: genuine Therma-Tru OEM hinges, sills, sweeps, weatherstrip, and multipoint hardware. We stock the common OEM wear parts locally for fast turnaround across San Antonio Heights. When a Fiber-Classic slab is sound but the frame and sill are shot from hillside moisture, we reseal and rehang on OEM parts. When the slab is chalked, cracked, or out of square beyond resetting, we recommend full replacement and tell you why. You can learn more about our broader Therma-Tru sales & service capabilities, or read how we apply the same OEM-parts discipline to every door we touch.
See the difference
Before
After
Before
After
Before
AfterTherma-Tru Service Pricing in San Antonio Heights
Therma-Tru door work rarely happens in isolation here. Homeowners in San Antonio Heights are often doing a broader exterior or interior renovation at the same time, so here are the ranges we work within most often:
| Service | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
The door-specific portion of a project depends on whether we’re repairing an existing Therma-Tru assembly or doing a full replacement, and whether the work triggers county WUI review. A free estimate includes a written line-item quote covering materials, labor, and any permit-driven detailing, so you know exactly what you’re paying for before you sign. Call (877) 265-6284 for an exact quote.
Serving San Antonio Heights, CA — Our Local Coverage Area
We’re based in the San Antonio Heights 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 Antonio Heights
No, and that’s deliberate. Sycamore Contractors is an independent Therma-Tru service provider, not manufacturer-affiliated or authorized. We quote repair versus replacement on the door’s real condition, not on a dealership quota. When a slab is sound, we say so and rehang it. When it’s shot, we say that too.
We use genuine Therma-Tru OEM hinges, sills, sweeps, weatherstrip, and multipoint hardware. Aftermarket pieces fit poorly and fail early in the inland heat and Santa Ana winds that hit San Antonio Heights. We stock the common wear parts locally so we’re not waiting on a shipment from back East while your door leaks.
A typical repair like a sweep, weatherstrip, or multipoint lock replacement is done in one visit. A full door replacement on a flat-lot home usually takes one to two days. On a terraced hillside lot in San Antonio Heights, plan for additional time if the work requires county WUI review, fire-rated detailing, or jamb re-squaring after hillside settling. Call (877) 265-6284 and we’ll give you a straight answer for your specific property.
We service Fiber-Classic Collection entry doors, Smooth-Star Collection doors, Pulse and ReliaBilt-style flush-glazed entry systems common on mid-century ranch remodels, and Therma-Tru sliders and patio door units in older custom homes. If you have a Therma-Tru product that isn’t on this list, call us and we’ll tell you whether it’s a door we can service or a door that’s reached the end of its serviceable life.
In San Antonio Heights, window replacement typically runs $4,500 – $15,000, impact window installation $8,000 – $25,000, and a full kitchen remodel $14,000 – $45,000. Door work adds to those totals depending on the condition of the existing slab and frame, whether the hillside has shifted the opening, and whether county WUI review adds fire-rated detailing. Call (877) 265-6284 for a free estimate that breaks out every line item.
Service Areas Near San Antonio Heights
We serve San Antonio Heights and the surrounding foothill and valley communities. You’ll find us working regularly in San Antonio Heights service area, as well as nearby Temecula, Murrieta Hot Springs, Murrieta, Rainbow, Fallbrook, and Wildomar. If you’re in a neighboring town, our Therma-Tru service in La Habra and Therma-Tru service in La Verne pages cover those areas in more detail.
Book Your Therma-Tru Service in San Antonio Heights Today
Do it right the first time, or you’ll do it twice in the July heat. If your Therma-Tru door isn’t latching, sealing, or holding up the way it should, call (877) 265-6284 to schedule your free estimate. We’ll tell you what’s wrong, what it costs, and whether repair or replacement makes sense.
Written by Nate Calloway, Owner at Sycamore Contractors, serving San Antonio Heights with independent Therma-Tru construction service.