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Therma-Tru Construction in Los Angeles, CA | Penhallow Remodeling Los Angeles
We provide independent Therma-Tru door and window service across Los Angeles, handling everything from warped slab replacement to full frame re-hangs on hillside homes. What makes our work different here is simple: we account for the seismic retrofit realities, foundation settlement, and intense UV exposure that flatland contractors never see. If you need Therma-Tru sales & service from a crew that understands Los Angeles construction, call (213) 277-6578 for a free estimate.
Why Los Angeles Residents Choose Us for Therma-Tru Service
Trevor Nash, our owner, grew up in the Crenshaw district watching his uncle re-frame doorways in the old bungalows nearby. That’s where the habit started: give you a number first, then pick up the tools. He studied construction technology at Los Angeles Trade-Technical College and has spent the better part of two decades working residential and light commercial jobs across the Basin. Our crews carry that same standard into every Therma-Tru service call. We’re on time, we’re uniformed, and we put a written price in your hand before any work begins. That’s the Kingswell Way, and it’s been the operating standard since 2004. Every job also comes with our 365-Day Done Right Promise in writing: if something fails inside the guarantee period, we come back and fix it at no charge.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Los Angeles
- Warped or sagging fiberglass slabs from direct sun. West-facing entries in Sherman Oaks and Woodland Hills take brutal afternoon UV. After enough years, the slab bows and the latch binds. We replace with a new Therma-Tru slab, re-hung square, and often add an extended drip cap to reduce future exposure.
- Failed perimeter weatherstripping and worn door sweeps. When Santa Ana winds push through, dust and grit blow straight past compressed seals. We install aftermarket weatherstripping that often exceeds factory specs at a lower cost, then adjust the sweep so the threshold stops whistling.
- Deteriorated bottom rails from irrigation overspray. Landscaped front entries in Los Angeles mean sprinkler heads aimed at the door. Water wicks up into the bottom rail and rots it from the inside. We replace with Therma-Tru’s rot-resistant composite bottom rail and re-set the weatherseal.
- Loose or stripped hinge screws in stucco or wood-framed jambs. Older Los Angeles homes have jambs that have been re-screwed too many times. The door sags, the deadbolt misses the strike plate, and security suffers. We bore out the stripped holes, epoxy in hardwood dowels, and re-hang with longer screws that bite into the rough opening framing.
- Out-of-square installations from hillside settlement. Echo Park and Silver Lake homes shift. That means Therma-Tru doors installed years ago are no longer square. We shim the jamb, adjust hinge placement, and sometimes use longer hinges to compensate for the movement without tearing out the frame.
Therma-Tru Service in Los Angeles: What Local Conditions Mean for Your Equipment
Many pre-1980 Los Angeles homes were built with single-width door frames and no door overhangs at all. That’s why Therma-Tru’s Fiber-Classic series is the most common replacement we install: its composite edge design handles direct sun and rain without the swelling that plagues wood doors. Up in hillside areas like Echo Park, we regularly find Therma-Tru doors installed out of square because the foundation has settled over the decades. That requires custom jamb shimming and, in some cases, longer hinges you would never need on a flatland tract home in the Valley. The house moves; the door has to move with it. Spend enough time working on Los Angeles hillsides and you learn to check for settlement before you ever measure the slab.
Therma-Tru Models & Products We Service in Los Angeles
We work on the full Therma-Tru lineup: Fiber-Classic entry doors, Smooth-Star doors, Pulse series doors, and Benchmark by Therma-Tru doors. Our approach on parts is straightforward. For structural components like slabs, frames, and hardware, we use genuine Therma-Tru OEM parts when a like-for-like replacement preserves the door’s engineered performance. For weatherstripping, sweeps, and non-structural trim, we often recommend aftermarket parts that beat factory specs for less money. We stock common sill caps, sweeps, and hinge kits on the truck, which means most Los Angeles service calls don’t require a second trip or a week waiting on a shipment.
See the difference
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AfterTherma-Tru Service Pricing in Los Angeles
Door slab replacement with re-hang and weatherseal on a Therma-Tru opening typically runs $2,950 to $5,900. Window replacement using Therma-Tru compatible flanges runs $5,310 to $17,700 per opening, depending on size, glass package, and whether the existing frame can be salvaged. What drives the number: access (hillside homes with retaining walls cost more to stage), the condition of the rough opening, and whether we’re reusing your existing frame or replacing it. Every estimate is free and written in full before work begins. Call (213) 277-6578 and we’ll put a number in your hand.
| Service | Price Range |
|---|---|
| Door slab replacement with re-hang and weatherseal | $2,950 – $5,900 |
| Window replacement (per opening, Therma-Tru compatible flange) | $5,310 – $17,700 |
Serving Los Angeles, CA - Our Local Coverage Area
We’re based in the Los Angeles 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 Los Angeles
They hold up better than wood, but not perfectly. Years of west-facing sun in neighborhoods like Sherman Oaks will fade any factory finish and can eventually bow a slab left unshaded. What we see most is finish degradation first, then weatherstripping compression. We recommend an extended drip cap or an awning on exposed entries, and we re-seal the slab edges when they show hairline wear. For a price to replace a sun-damaged slab, call (213) 277-6578.
Yes, in most cases. If the frame is structurally sound and not rotted or racked, we replace the slab only and re-hang it with new hinges and weatherseal. This keeps costs down and preserves the original look. If the frame has rot at the bottom or is out of square beyond what shimming can correct, we’ll tell you honestly before any work starts. Estimates are free and written.
It’s rarely humidity. In Los Angeles, binding usually comes from foundation settlement or heat expansion on a sun-exposed slab. Hillside homes in Echo Park shift a fraction of an inch over years, and that’s enough to throw a door out of square. We check the reveal gaps, the strike plate alignment, and the slab edge for signs of movement before recommending shimming or replacement. A quick call to (213) 277-6578 gets you a straight answer.
Replacing a door or window in the same opening with no structural changes typically doesn’t require a permit in Los Angeles. If we’re enlarging the opening, moving a window, or making structural frame changes, we pull the permit ourselves and schedule the inspection. We’ll tell you up front whether your job needs one. No surprises, no work that skips the building department when it shouldn’t.
Yes. Leaking thresholds on second-story doors are often a flashing or drip cap failure above the opening, not the door itself. Our Los Angeles service area crews evaluate the path of water from the roof edge down and address the source, then re-seal the threshold and test it. Someone answers the phone 24/7 at (213) 277-6578 if you want to talk through what you’re seeing.
Service Areas Near Los Angeles
We serve the full Los Angeles service area plus the surrounding cities. If you’re in Burbank, we handle Therma-Tru service in Burbank the same way: written prices, real arrival windows, and the 365-Day Done Right Promise. Santa Monica homeowners can reach us for Therma-Tru service in Santa Monica with the same coverage. We also work regularly in North Hollywood, Studio City, and West Los Angeles.
Book Your Therma-Tru Service in Los Angeles Today
Tell us what your door or window is doing and we’ll put a written number in your hand before any work starts. Live phone coverage, background-checked techs, and a guarantee that lasts 365 days after the job. Call (213) 277-6578 to schedule your free estimate.
Written by Trevor Nash, Owner at Penhallow Remodeling Los Angeles, serving Los Angeles since 2004.












