Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterTherma-Tru Construction in San Bernardino, CA | Penhallow Remodeling
We provide independent Therma-Tru entry door and patio door construction, repair, and replacement across San Bernardino, CA. Most calls run us $450 – $2,100 depending on whether it’s a glass insert, a warped slab, or a full frame with seismic anchoring. What makes our Therma-Tru work different here is that we treat the door as part of the wall assembly, not a box you screw into an old rough opening. Call (936) 259-2607 for a free estimate.
We’re an independent remodeling contractor serving San Bernardino homeowners. We are not affiliated with, authorized by, or sponsored by Therma-Tru. That independence means we quote repair-vs-replace honestly, using OEM-equivalent parts where they matter and telling you straight when a slab should be replaced instead of patched. From Therma-Tru sales & service on mid-century tract homes to seismic re-detailing on older commercial corridors, we back our workmanship directly in writing.
Why San Bernardino Residents Choose Us for Therma-Tru Service
Most door companies in San Bernardino will sell you a new slab and walk away. We don’t. Trevor Nash started Penhallow Remodeling after nearly two decades of watching homeowners get handed vague estimates that changed after demo day, and the rule here is simple: say the price before the work, show up in the window we give, and stand behind the door after the crew leaves. That’s The Kingswell Way, in effect since 2004.
We know Therma-Tru product lines by name, not by brochure. Fiber-Classic slabs that bow at the hinge stile after a San Bernardino summer. Smooth-Star steel skins that rust at the bottom corner because the original rough opening was never back-flashed. We also know the houses these doors sit in. The post-WWII tract stock in central and west-side San Bernardino has framing that shifts, sills that rot, and rough openings that haven’t been square since the Eisenhower administration. You can’t set a new door properly in a frame like that unless you fix the frame first.
Every technician on our crew is background-checked and arrives in uniform. A live person answers our phone 24/7 at (936) 259-2607, not a voicemail maze. And every job gets a written price before we touch the jamb, plus the 365-Day Done Right Promise in writing. If the work fails inside the guarantee period, we come back and fix it at no charge. That’s not marketing copy. That’s the contract.
Common Therma-Tru Construction Problems We Solve in San Bernardino
- Warped and bowing Fiber-Classic door slabs. San Bernardino sits in an inland basin at roughly 1,050 feet where summer afternoons regularly run past 110°F with single-digit humidity. That cycle of extreme heat and rapid nighttime cooling is far harsher than anything coastal Southern California dishes out. Therma-Tru Fiber-Classic and Smooth-Star slabs that performed fine in Riverside will bow at the hinge stile here. We have pulled doors warped 3/8 inch out of plane. The fix is usually a new slab, not a new frame.
- Steel skin rust and delamination. When monsoon-season wind-driven rain gets behind a poorly flashed rough opening on a 1940s-era tract home, water reaches the steel core. Patch and paint will not recover a delaminated steel door. We replace the slab and correct the flashing so it does not return.
- Frame rot at the sill and jamb bottom. This is the one we see most in the central San Bernardino and Muscoy-area neighborhoods. Original T1-11 or stucco cladding was never back-flashed, water wicked into the bottom of the frame for twenty years, and now the sill crumbles when you step on it. We cut out the rot, rebuild the sill and jamb bottom with treated stock, and set the new door into a dry, square opening.
- Fogged decorative glass inserts and sagging sidelites. Therma-Tru glass lite and sidelite units fail from seal breakdown, usually after a decade of San Bernardino heat cycling. A fogged lite can often be replaced without buying a whole new door. Sagging sidelites and transoms usually trace back to a rough opening that was never re-squared during a prior remodel.
- Sticking and dragging doors on seismic-shifted frames. San Bernardino sits directly adjacent to the San Andreas Fault, which cuts through Cajon Pass just north of the city. Portions of the metro fall inside Alquist-Priolo Earthquake Fault Zones. Ground movement shifts door frames out of square, and suddenly a Therma-Tru door that closed fine for years drags across the threshold every June. The door is rarely the only problem.
Therma-Tru Service in San Bernardino: What Local Conditions Mean for Your Equipment
Here’s the part most door installers miss, and it’s the reason we start every San Bernardino job by looking at the rough opening, not the door. Because San Bernardino’s post-WWII tract stock and lightly reinforced masonry homes predate modern seismic standards, door rough openings in the central and west-side neighborhoods frequently need seismic anchoring and re-squared framing before a new Therma-Tru door or glass insert can be set. The 2012 – 2017 municipal bankruptcy froze code enforcement and capital projects for years, so a lot of these homes have had decades of deferred maintenance and unpermitted additions layered on top of original framing that was never that square to begin with. Contractors pulling permits along E Street and Baseline routinely encounter substandard rough openings, compromised foundations, and framing that shifted years ago and was never corrected. The door itself is the last 10% of the job. Skip the framing and anchoring work, and the new door will bind, leak air, and fail long before its service life is up. We fix the opening first, then set the door.
Therma-Tru Models & Products We Service in San Bernardino
We service the Therma-Tru lines most common in San Bernardino’s older housing stock: Fiber-Classic and the Fiber-Classic Oak Collection entry doors, Smooth-Star and Traditions steel entry doors, Classic-Craft Canvas and American Style collections, plus Therma-Tru patio door systems and sidelite/transom units. For hinges, weatherstripping, sill pans, and glass inserts, we use Therma-Tru OEM or equivalent-quality aftermarket parts. For structural or code concerns, we do not source aftermarket shortcuts. When a Fiber-Classic or Smooth-Star door has core rot, delamination, or a warped slab, the honest repair-vs-replace call usually lands on replacing the slab, not the whole frame. We will tell you that directly rather than sell a full frame job you don’t need.
We keep common Therma-Tru weatherstripping profiles, sill pans, and slab sizes moving through our San Bernardino jobs regularly, which means shorter turnaround on the everyday failures. Custom slab orders for Classic-Craft and American Style typically run two to three weeks. For San Bernardino service area homeowners, we coordinate the order and the install so you are never left with a plywood panel over your front entry.
Therma-Tru Service Pricing in San Bernardino
You should know what a Therma-Tru job costs here before you decide anything. Here are the common ranges we quote in San Bernardino:
| Service | Price Range |
|---|---|
| Window Replacement (per opening) | $4,500 – $15,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
What drives a door-specific price up or down: whether the rough opening needs seismic anchoring, how much sill and jamb rot has to be cut out, which slab model you choose, and whether glass inserts or sidelites are involved. A basic slab swap runs lower. A full frame replacement with re-squared framing and new flashing runs higher. Your free estimate includes a written line-item breakdown before any work starts. Call (936) 259-2607 for an exact number, and keep in mind that San Bernardino’s Therma-Tru service in Fontana and Moreno Valley coverage means we can usually route a crew to you quickly.
Serving San Bernardino, CA - Our Local Coverage Area
We’re based in the San Bernardino 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 Bernardino
Normal for San Bernardino, yes. Acceptable, no. The inland basin’s 110°F+ summer days with single-digit humidity cause Fiber-Classic and Smooth-Star slabs to expand and bow at the hinge stile. Over time, the slab takes a permanent set. If your door drags every summer and loosens in winter, you are looking at thermal warping, not a hinge problem. Call (936) 259-2607 and we will tell you after looking whether it is the slab, the frame, or both.
Yes, in most cases. If the frame is square, dry, and structurally sound, replacing just the slab costs substantially less than a full frame tear-out. We tell you straight when the frame is too far gone, and we do not push a full frame job when a slab replacement is the honest call.
Yes. Rough-opening re-squaring, sill and jamb rebuilds, and seismic anchoring are part of our standard door work here. Given the Alquist-Priolo Earthquake Fault Zones running through parts of the metro, this is not optional detailing. We pull permits when the scope requires them and get inspections passed.
Usually yes. Failed seals on decorative glass lites and sidelites can often be replaced as a unit without buying a whole new door slab. We will check the condition of the surrounding frame first, since a fogged insert on a sagging sidelite usually means a bigger frame problem behind it. Call (936) 259-2607 for a free estimate and we will quote you the insert-only route if that is what your door actually needs.
A properly installed Therma-Tru Fiber-Classic or Smooth-Star door on a dry, square, well-flashed rough opening should give you 20 to 30 years in San Bernardino. The failure we see most often, frame rot at the sill, is almost always an installation or flashing problem from an earlier era, not a manufacturing fault. If the door was set square into a protected opening from day one, it ages well. If it was set into an unflashed 1960s rough opening, no door survives that forever.
Service Areas Near San Bernardino
We serve San Bernardino and the surrounding municipalities with the same written price and written guarantee. That includes Fontana, Moreno Valley, Colton, Rialto, and Highland. If you are in the broader Inland Empire, Therma-Tru service in Moreno Valley and Fontana are covered by the same crew standard.
Book Your Therma-Tru Service in San Bernardino Today
We were out at a 1950s Muscoy-area home where a Fiber-Classic entry door had been bowing and dragging for two summers, and the homeowner had already replaced the hinges twice. We pulled the door, found sill rot and an out-of-square rough opening from the original tract framing, repaired the framing and sill, and set a new Fiber-Classic slab with fresh OEM weatherstripping and a Therma-Tru glass insert. The door seals and latches through 115°F afternoons without sticking. Give me the whole picture first, then we pick up the tools. Call (936) 259-2607 to schedule your free estimate.
Written by Trevor Nash, Owner at Penhallow Remodeling, serving San Bernardino with written prices and written guarantees on every Therma-Tru job.