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AfterTherma-Tru Door Installation: The Royal Palm Beach Owner’s Guide
We stock and install Therma-Tru door components across Royal Palm Beach, with most fully installed jobs running between $240 and $780 depending on whether we’re rebuilding a threshold, replacing weatherstripping, or setting a full slab. Our trucks carry the common Therma-Tru parts that fail in South Florida, so a single visit usually gets your door closing square again. The way most Royal Palm Beach homeowners find us is by feel: a door that suddenly drags against the jamb in August, daylight visible along the sweep, or a deadbolt that no longer lines up with the strike plate.
Key Takeaways:
- Therma-Tru uses proprietary frame and weatherstripping profiles on most models made after 2005; generic box-store parts rarely seat correctly.
- We register both warranty layers in writing before leaving the driveway per The Keystone Standard.
- Our Done Right Promise covers the workmanship on every Therma-Tru install we perform in Royal Palm Beach.
Which Therma-Tru Models This Applies To
Therma-Tru builds its entry and patio door lines around a handful of frame systems, and each one takes a different weatherstripping profile, bottom sweep, and threshold cap. The fiberglass slab lines you’ll see most often in Royal Palm Beach are the Classic-Craft, Fiber-Classic, and Smooth-Star series. The compatibility gotcha: a bottom sweep made for a Smooth-Star door will not seat into the Classic-Craft’s kerf channel, even when both doors are 36 inches wide. We’ve pulled more than one box-store sweep out of its packaging only to find the owner bought by door width, not by series. Before you order anything, check the hinge-side label or the top edge of the door slab for the series name, then measure the kerf channel with a ruler, not a guess. On the aftermarket question specifically for Therma-Tru: OEM sweeps and weatherseals are the one place we rarely recommend an aftermarket equivalent, because the geometry is too tight to fudge. Hinges, strike plates, and threshold screws are a different story, and a good aftermarket part there is often as strong as the factory piece.
We’re an independent service provider, not a Therma-Tru dealer or franchise. That means we stock what actually fails in Florida and quote the work honestly, without a manufacturer script. We keep Therma-Tru compatible parts on the truck alongside components for PGT, CGI, and CWS door lines our Royal Palm Beach customers ask about.
Signs Your Therma-Tru Door Installation Is Failing
- Visible daylight or a breeze at the threshold: The bottom sweep on Therma-Tru doors is a vinyl or silicone fin that compresses over time. Once it hardens, which Florida heat accelerates, it stops sealing. The fix is a new sweep matched to your series, not caulk.
- The door binds on the latch side in humid months: Royal Palm Beach humidity swells wood subframes and shifts slabs. If the reveal gap between the slab edge and jamb is no longer even, the hinges or frame have moved, and the door will only get harder to close.
- Your deadbolt no longer throws smoothly: When a slab sags even an eighth of an inch, the bolt hits the bottom edge of the strike opening instead of clearing it. A longer screw in the top hinge will fix some of these, but only if the frame itself is still square.
- Water staining on the interior floor near the door: This usually traces to a failed threshold cap or missing corner seal pad. In extreme rain, water wicks under the threshold and onto the slab floor. Once water gets in that seam regularly, the threshold needs a rebuild, not a recaulk.
- Condensation or fog between the glass panes: On Therma-Tru doors with decorative glass, a failed insulated glass unit (IGU) shows up as haze that will not wipe off the inside face. That is a glass replacement, not a door problem, but it is part of the same door system and follows the same Keystone Standard warranty registration.
Replacement Cost & What’s Included
A straightforward Therma-Tru weatherstrip and sweep replacement in Royal Palm Beach runs $240 to $390 installed depending on the door series and whether the technician is replacing one or both gaskets. A full threshold rebuild with new oak or maple substrate, aluminum cap, and corner seal pads runs $430 to $620. If the slab has sagged and we are re-hanging or shimming the frame, expect $520 to $780 once the hinges and strike are dialed in. The parts are the smaller share of every bill; the labor is where we spend the time that prevents the problem from returning. You get a written line-item quote before any work begins, both warranty layers registered in writing, and the Done Right Promise behind the whole job. No change order games.
DIY or Call Us?
You can safely check the hinge screws yourself. A broad-shouldered screwdriver and ten minutes will tell you if the top hinge has pulled loose. What you should not do is shim the frame, plane the slab edge, or route a new kerf channel into a fiberglass door. A fiberglass slab is hollow and end-grain routed edges are the one cut that cannot be hidden. We have seen more than one homeowner open a door with a utility knife trying to seat a sweep, then have to replace the entire slab because the cut wandered. That is why we frame it plainly: if the screws are tight and the door still binds, the frame has moved, and moving it back square is a job for a technician who has set hundreds of these doors. And if the seal is not right, the next storm will tell you. Call (386) 251-6745 and we’ll put a uniformed technician in front of your door with the right parts on the truck.
FAQs
In South Florida sun and humidity, a Therma-Tru bottom sweep and weatherstrip typically lasts 5 to 8 years before the vinyl hardens and stops sealing. West-facing doors age faster because the afternoon sun cooks the gasket. Call (386) 251-6745 if your sweep is hard to the touch or shows cracking at the fins.
Weatherstripping and bottom sweeps are replacement items; once the vinyl has compressed or cracked, no adhesive will restore it. A sagging slab can often be fixed with hinge adjustment and longer screws rather than new parts, so the first question is whether the failure is wear or movement.
Most sweep, weatherstrip, and threshold replacements on Therma-Tru doors are finished in 60 to 90 minutes on site. If the slab needs re-hanging or the frame requires shimming, budget up to two hours.
We stock the most common Therma-Tru sweeps, weatherseals, threshold caps, and hinge components for Classic-Craft, Fiber-Classic, and Smooth-Star lines on the truck. Less common profiles and decorative glass IGUs are ordered by series and size, usually with a one to two week lead time.
If your Therma-Tru door is dragging, leaking, or letting in the morning heat, call us at (386) 251-6745 for a free estimate. A live person answers the phone, and we will tell you honestly whether the job is a simple sweep replacement or something more. Dale Kessler grew up off Crestwood Boulevard and has spent three decades setting and sealing doors across Palm Beach County; we plan on being here another thirty years, which is exactly the kind of company you want standing behind a door install.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Royal Palm Beach and nearby areas.
Six Reasons Homeowners Choose TruePane Windows & Doors
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A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.