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Therma-Tru Construction in San Antonio Heights, CA | Moreno Valley Builders
Moreno Valley Builders provides independent Therma-Tru entry door, sidelite, and patio door service across San Antonio Heights, CA. We’re not a Therma-Tru authorized dealer or factory rep. What we are is a general contractor that has re-framed, re-flashed, and re-hung enough Therma-Tru units on sloped foothill lots to know exactly how these door systems fail when the ground under them moves. If your Therma-Tru door binds, leaks, or won’t latch in San Antonio Heights, call (877) 752-3154 for a free estimate.
Why San Antonio Heights Residents Choose Us for Therma-Tru Service
Door work in San Antonio Heights isn’t a slab swap. The lots slope, the soil is expansive clay, and the homes run from 1920s foothill cottages to later custom builds tied into hillside grade. That means the rough opening is rarely square, the sill is rarely level, and the flashing detail that worked fine on a flat tract home in Upland won’t hold up here. We’ve spent years correcting those exact problems. Noel Trevino grew up in Sunnymead Ranch and has been building and renovating across the Inland Empire for the better part of three decades. When we open up a Therma-Tru entry on a hillside, we know what we’re going to find before the trim comes off. If the details aren’t right on paper, they won’t be right in the wall.
We stock Therma-Tru OEM replacement slabs, sills, sweeps, and weatherseal kits, and we use aftermarket hardware only when the OEM part is discontinued or the cost doesn’t make sense. You get a straight answer on whether the door is worth saving or whether the opening needs re-framing first. That’s the conversation most door companies in this area won’t have.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in San Antonio Heights
- Racked frames from expansive clay movement. The 1920s – 1950s foothill foundations in San Antonio Heights heave and settle with every wet-dry cycle. Frames rack out of square, hinges bind, and deadbolts stop lining up. We re-square the rough opening, re-shim the jamb, and reset the unit so the door actually closes.
- Santa Ana wind working the seals loose. Uphill-facing entries in San Antonio Heights take the full force of Santa Ana gusts. Weatherstripping pulls away from the jamb, the bottom sweep grinds grit into the threshold, and the seal fails within a season. We install fresh OEM weatherseal and adjust the sweep for the windward face.
- Downslope rain finding the sill pan. Winter rain runs fast down these graded lots. A threshold set without a raised, back-dammed flashing detail will show rot and water staining at the bottom rail and jamb legs within a few wet seasons. We pull the unit and build the sill detail the slope demands.
- Rough openings framed to the slope, not to tolerance. On hillside homes where the entry wall steps down with the grade, builders framed to the hill. A stock Therma-Tru prehung unit has to be custom-shimmed and jamb-extended to hang plumb. We do that work in-house instead of forcing the door and walking away.
- Full door system replacement where the frame is gone. Sometimes the slab is fine but the frame is shot. When the jamb legs are rotted or the header has settled, a new slab in a failing opening is money thrown away. We re-frame, re-flash, and then set the new Therma-Tru unit.
Therma-Tru Service in San Antonio Heights: What Local Conditions Mean for Your Equipment
Here’s the part that matters and the part most contractors miss. San Antonio Heights gets permitted through San Bernardino County rather than a city building department. County inspectors want to see the flashing and header detail on any entry door set into an aging foothill wall. That means a Therma-Tru swap that resizes or reframes an opening here runs a county review path that identical work in flatland Upland or Claremont never touches. We pull the permit, we schedule the inspection, and we build the rough opening to the county’s standard, not to what passed on a different lot in a different jurisdiction. If you’re on a hillside street off the Mountain base above Upland and your Therma-Tru door has been binding for years, the issue is rarely the door itself. It’s the frame movement and the flashing detail behind it. That’s what we correct first.
Noel Trevino has pulled enough permits through San Bernardino County to know what the inspectors flag and what they let pass. That local knowledge means your Therma-Tru entry doesn’t sit in limbo waiting on a re-inspection because the rough opening didn’t match the plan set.
Therma-Tru Models & Products We Service in San Antonio Heights
We service the full Therma-Tru residential line: Fiber-Classic entry doors, Smooth-Star fiberglass entries, Classic-Craft door series, and patio and sidelite door systems. On a hillside home, we typically recommend Fiber-Classic or Smooth-Star for the entry because the fiberglass skin holds its shape better than wood when the underlying frame shifts with clay expansion. Classic-Craft gives you the wood look with the same dimensional stability. For patio doors set into a sloped wall, we pay close attention to the sill pan and the head flashing because that’s where downslope runoff finds its way in. We carry OEM replacement slabs, sills, sweeps, and weatherseal kits for faster turnaround in San Antonio Heights. When the OEM part is discontinued or priced out of range, we use aftermarket hardware that matches the spec and tell you we’re doing it.
See the difference
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AfterTherma-Tru Service Pricing in San Antonio Heights
Therma-Tru entry door service in San Antonio Heights typically starts with a site visit to measure the rough opening, check the frame for rack, and assess the sill flashing. From there, pricing depends on whether we’re repairing the existing unit or replacing the door and re-framing the opening. Here’s what full replacement work looks like:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Home Addition | $45,000 – $130,000 |
The final number depends on the size of the opening, whether we’re re-framing, and what the county inspection requires. We give you a written line-item estimate before any work starts. Call (877) 752-3154 to schedule a free estimate in San Antonio Heights.
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
Because the expansive clay under your foundation moves with the wet-dry cycle, and the rough opening racks out of square. The hinges bind, the lock stops lining up, and the door sticks at the top or bottom corner. The fix is re-shimming and re-squaring the frame, not planing the slab. Call (877) 752-3154 and we’ll take a look.
Yes. San Antonio Heights is unincorporated, so entry door work that resizes or reframes an opening runs through San Bernardino County, not a city building department. County inspectors review the flashing and header detail on any exterior door set into an existing foothill wall. We pull the permit and handle the inspection.
We build a raised, back-dammed sill pan with proper flashing up the jamb legs. On a graded San Antonio Heights lot, water runs fast and finds any low seam. A flat threshold set without that detail will rot the bottom rail and the jambs within a few seasons. Call (877) 752-3154 for a free inspection if you’re seeing water staining at the door base.
Yes, if the weatherstripping is set for the windward face and the bottom sweep is installed with the right compression. Uphill-facing entries take the worst of the Santa Ana winds. We use OEM weatherseal kits and set the sweep so it holds its seal through the gusts instead of peeling away. Call (877) 752-3154 and we’ll check yours.
Usually yes, but it takes custom shimming and jamb extension to hang plumb. The original rough opening was likely framed to the slope, not to a modern tolerance. We re-square and re-shim the opening, extend the jamb where the wall steps down, and set the unit so it closes clean. That’s standard work on San Antonio Heights hillside homes.
Service Areas Near San Antonio Heights
We provide Therma-Tru sales & service throughout San Antonio Heights and the surrounding foothill communities. Our crews also cover Moreno Valley, March Air Force Base, Loma Linda, Highgrove, Mead Valley, and Grand Terrace. If you’re on the hillside or the flatland below, we handle the full project from permit to punch list. See our San Antonio Heights service area page for coverage details. For neighbors just over the ridge, we also provide Therma-Tru service in Portola Hills and Therma-Tru service in Rancho Santa Margarita.
Book Your Therma-Tru Service in San Antonio Heights Today
A binding Therma-Tru door on a hillside only gets worse. Call (877) 752-3154 to schedule your free estimate. We’ll measure the rough opening, check the frame, and give you a straight answer on what needs to happen.
Written by Noel Trevino, Owner & General Contractor at Moreno Valley Builders, serving San Antonio Heights and the Inland Empire foothills.