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Therma-Tru Construction in Bloomington, CA | Polaris Contractors
We provide independent Therma-Tru door installation, repair, and replacement across Bloomington, CA. The thing that makes our Therma-Tru work different here is simple: we sequence every door rough opening, header, and egress spec through San Bernardino County Land Use Services before we ever order the slab, because Bloomington has no city building department. If you’re planning a Therma-Tru entry, patio, or interior door as part of an addition, ADU, or legalized garage conversion, call (855) 473-6535 and we’ll walk the opening with you.
Why Bloomington Residents Choose Us for Therma-Tru Service
We’ve set Therma-Tru entry and patio doors into Bloomington’s 1950s-70s ranch homes and legalized garage conversions for years, and we bring the same expertise to Therma-Tru service in Glen Avon. Smooth-Star, Fiber-Classic, Classic-Craft, and the patio sliders – we know which ones hold up to an Inland Empire summer and which ones start dragging at the threshold after a few Santa Ana cycles. Rick Sondermann, our owner, has nearly three decades of building and renovating homes, and his father was a finish carpenter who believed in doing things once. That’s the standard we bring to every Therma-Tru opening in Bloomington: square the rough opening, set the sill pan right, flash against stucco that’s been baking in the sun since before most of the neighbors were born. We’re an independent contractor, not affiliated with or authorized by Therma-Tru, and we repair or replace based on what’s actually happening with your opening, not a brand script.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Bloomington
- Threshold and sweep decay on Fiber-Classic and Smooth-Star entries. Bloomington’s dry-summer heat shrinks the stucco around door frames, then a Santa Ana wind-driven rain arrives and water finds those dried-out gaps. We replace OEM sweeps and sills where the slab and frame are sound, then re-flash the perimeter so the door stops leaking at the ground line.
- Out-of-square rough openings in self-built ranch homes and unpermitted conversions. A lot of Bloomington’s original doors were hung into framing that was never squared, and when a new Therma-Tru slab goes into that opening it drags or won’t latch. We re-square and re-header before we hang, which is the difference between a door that works and a door that fights you every time.
- UV and heat degradation on west- and south-facing doors. Intense summer sun chalking factory finishes, fading stain, and fogging the insulated glass. If the fiberglass skin and frame are still intact, we restore and reseal. If the glazing seal is shot, we’ll tell you straight whether a replacement door makes more sense than patching.
- Hinge-side sag and loose strike plates on older wood-edge Therma-Tru slabs. The jamb absorbs seasonal movement and the latching geometry goes out of whack. Often this is a header or sill pan issue, not just hardware, and we address the structure before we start adjusting hardware.
- Wind-driven rain leaks around legalized garage conversions. We’ve opened up county-permitted conversions in the 92316 core and found rotted sills and sagging jambs hidden behind drywall. The door gets blamed, but the flashing and sill pan were the real failure. We fix the root cause and set the door so it passes county inspection.
Therma-Tru Service in Bloomington: What Local Conditions Mean for Your Equipment
Because Bloomington has no city building department, every door we set into a new addition, ADU, or legalized garage conversion gets permitted and inspected through San Bernardino County Land Use Services. That changes the order of operations. A contractor who’s used to city-hall permitting might hang the door, then realize the egress or header spec doesn’t match county plan-check. We sequence the Therma-Tru rough opening, header, and egress specs to county plan-check before the door is ordered. On a multi-generational remodel off a half-acre lot in the 92316 core, we opened up a legalized garage conversion for a County Land Use Services permit and found the existing Fiber-Classic entry hung into an un-squared, never-permitted rough opening with a rotted sill and sagging hinge jamb. We re-squared and re-headered the opening, set a new sill pan with proper flashing against the stucco, and hung a Smooth-Star entry with OEM sweep and multipoint hardware so it latched clean and passed county inspection. The family got an egress-compliant exterior door that also stopped the wind-driven rain leak they’d fought for years. That’s information gain most Therma-Tru pages don’t have: the door, the rough opening, and the legalization are one county-scoped job here.
Therma-Tru Models & Products We Service in Bloomington
We work on the full Therma-Tru residential lineup: Therma-Tru sales & service covering Smooth-Star fiberglass entries, Fiber-Classic series, Classic-Craft premium entry doors, and Therma-Tru patio and sliding-glass door systems. Our parts approach is honest: where the slab and frame are sound, we use OEM Therma-Tru replacement sweeps, sills, hinges, and multipoint hardware. We only move to a quality aftermarket part when OEM is discontinued or when the pricing makes a full door replacement the smarter value. If the fiberglass skin, glazing seal, and frame are intact, a hardware-and-flashing repair usually outlasts a new door. If the rough opening or sill pan is compromised, patching it just kicks the leak down the road, and we’ll tell you that before we quote anything.
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AfterTherma-Tru Service Pricing in Bloomington
Therma-Tru door work in Bloomington almost always folds into a larger project: the door is the last thing set on a kitchen, bathroom, or home addition, and pricing depends on scope. Here are the project ranges we work within:
| Project Type | Price Range |
|---|---|
| Home Addition | $45,000 – $130,000 |
| Garage Conversion | $30,000 – $80,000 |
| ADU Construction | $90,000 – $220,000 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
| Full Bathroom Remodeling | $9,000 – $28,000 |
Door-specific labor and parts sit inside those numbers, and a free estimate breaks out the Therma-Tru opening separately so you see exactly what the door, flashing, and hardware cost. Call (855) 473-6535 and we’ll come measure the opening and give you a written line-item number.
Serving Bloomington, CA — Our Local Coverage Area
We’re based in the Bloomington area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help, and we also offer Therma-Tru service in Fontana.
FAQs – Therma-Tru Construction in Bloomington
Yes, and that’s most of our Therma-Tru work in Bloomington. We set the door into the new addition, ADU, or legalized garage conversion as part of the same county-scoped job, so the rough opening, header, and egress specs are sequenced through San Bernardino County Land Use Services before we order the slab. Call (855) 473-6535 to talk through your addition and where the doors fit.
We use OEM Therma-Tru replacement sweeps, sills, hinges, and multipoint hardware wherever the slab and frame are sound, including for Therma-Tru repair in Pedley. We step to quality aftermarket only when OEM is discontinued or when a full door replacement is the better value for the opening. We’ll tell you which one applies to your door before we quote.
For a straightforward entry or patio door replacement on an existing square opening, it’s typically a one-day install. Additions and legalized conversions run longer because the rough opening, header, and egress specs have to clear county plan-check first. We sequence that before ordering so the door isn’t sitting in a warehouse while the permit languishes.
We service Smooth-Star fiberglass entries, Fiber-Classic series, Classic-Craft premium entry doors, and Therma-Tru patio and sliding-glass door systems, and we provide Therma-Tru repair in Rialto as well. If you have an older Therma-Tru slab with a faded factory finish or fogged insulated glass, we can usually restore it or tell you if replacement makes more sense for the opening.
A door-only replacement on an existing square opening usually falls between $2,000 and $6,500 depending on the series and hardware, but in Bloomington most Therma-Tru work is part of a larger addition or conversion, which runs $45,000 and up depending on scope. Call (855) 473-6535 for an exact quote – estimates are free.
Service Areas Near Bloomington
We serve Bloomington and the surrounding Inland Empire communities. For Therma-Tru work just up the road, see our Therma-Tru service in Highgrove. Farther south in Riverside County, we cover Therma-Tru service in Romoland. Our full Bloomington service area page shows the complete coverage map.
Book Your Therma-Tru Service in Bloomington Today
If your Therma-Tru door is dragging, leaking, or going into a county-permitted addition, call (855) 473-6535 and we’ll come measure the opening. Do it right the first time – the second time always costs more.
Written by Rick Sondermann, Owner at Polaris Contractors, serving Bloomington and the Inland Empire for nearly three decades.