Therma-Tru Sliding Glass & Patio Doors Nationwide | Winslow Windows & Doors

Therma-Tru Sliding Glass & Patio Doors in Westgate: What to Know First

We provide independent Therma-Tru sliding glass and patio door repair, hardware replacement, and full door installation across Westgate. Most repair jobs take one visit, and we keep a running stock of Therma-Tru-compatible rollers, handles, and weatherseals in our trucks so we don’t have to schedule a second trip for parts. Pricing is upfront with a written line-item estimate before any work begins, and every job carries our Done Right Promise.

Call (561) 468-6136

This page is for Westgate homeowners who own a Therma-Tru sliding door and want a technician who actually knows the product, not someone reading a manual in the driveway. If your door drags, sticks, leaks, or won’t lock, call (561) 468-6136 and you’ll get a live person, day or night.

How Therma-Tru Products Fail - and How We Fix Them

Therma-Tru builds a solid door, but every product line has recurring weak points. Here’s what we see most often on sliding glass and patio doors in Westgate:

• Sticking or dragging panels on Therma-Tru sliding patio doors. In Westgate’s humidity, the original steel rollers on older Therma-Tru frames corrode and flatten over time, which makes the panel grind against the track. We replace the worn rollers with stainless-steel equivalents sized to the original housing, then clean and re-lubricate the track so the door moves with two fingers.
• Failed interlock weatherstripping on Therma-Tru sliding doors. The interlock, where the two panels meet at the center, is where air and water sneak through once the factory weatherseal loses its memory. This is especially common on doors facing the lake side of Westgate, where wind-driven rain tests them every summer. We replace the interlock seal with a profile-matched material, not a generic peel-and-stick strip that falls off in June.
• Loose or wobbly handles on Therma-Tru patio doors with mortise-style locks. The mounting screws on some Therma-Tru handle sets work themselves loose through years of daily use, which eventually strips the screw holes and leaves the handle rattling. We repair or rebuild the mounting points and re-secure the hardware so the lock engages cleanly without forcing it.
• Condensation fogging on Therma-Tru insulated glass units. When the seal on a dual-pane unit fails, South Florida humidity gets trapped between the panes, and no amount of wiping clears it. We order a new insulated glass unit cut to the door’s exact dimensions, and on Therma-Tru doors we match the existing Low-E coating and gas fill so the new pane doesn’t look different from the rest of your glass.
• Track damage from debris buildup on Westgate patios. Sand, leaves, and construction grit accumulate in the bottom track and grind away the surface every time the door opens. If caught early, we can clean the track and replace the rollers. If the track itself is gouged, we replace the track assembly rather than let the door continue eating new rollers every year.

Our Therma-Tru Sliding Glass & Patio Doors Process

When you call about a Therma-Tru sliding door in Westgate, here’s what actually happens:

1. 1
   We answer the phone. A live person, 24/7, not a voicemail tree. We’ll ask what the door is doing, what side of Westgate you’re on, and when works for us to come out.
2. 2
   We diagnose before we quote. Our technician inspects the door, the track, the hardware, and the glass. On a Therma-Tru door, that means checking the interlock, the roller housings, and the seal system, not just glancing at the panel and guessing.
3. 3
   We give you a written number. Line-item pricing with parts and labor separated. You’ll know the exact cost before we turn a screwdriver. If the problem turns out to be smaller than expected, the price goes down, never up.
4. 4
   We do the job with the right parts. Where factory Therma-Tru parts are available and cost-effective, we use them. Where a quality aftermarket part matches or exceeds the original spec, we’ll tell you and price accordingly. You get the decision, not a surprise.
5. 5
   We test the door until it’s right. The panel has to glide, the lock has to catch, the seal has to hold. If it doesn’t, we fix it before we leave.
6. 6
   The Done Right Promise kicks in. If anything we touched isn’t right, Ed Winslow makes it right. That’s not a marketing line. My name’s on the truck. If it’s not right, I’ll make it right.

What Therma-Tru Sliding Glass & Patio Doors Cost in Westgate

Here are real numbers for the Therma-Tru work we handle most in Westgate, as of 2026:

• Roller replacement (both panels): $180-$340 with parts and track cleaning included.
• Weatherseal and interlock replacement: $140-$280 depending on how many runs need replacing.
• Handle and lock replacement with mortise hardware: $120-$260 including re-tapping the mounting points.
• Insulated glass unit replacement (dual-pane, standard Low-E): $350-$750 depending on glass size and coating spec.
• Full Therma-Tru sliding patio door installation (new door, trim, and hardware): $2,800-$6,200, with impact-rated glass and custom sizes at the upper end.

What moves the price: glass package, frame size, whether the track needs full replacement, and how much custom work the opening requires. We don’t pad numbers and we don’t add change orders midway through the job. Call (561) 468-6136 for a free, written estimate on your Therma-Tru door.

Why Westgate Homeowners Call Winslow Windows & Doors for Therma-Tru Work

We’ve been in business since 2011, and Ed Winslow grew up just off Hialeah Drive, so when we say we know Westgate, we mean we’ve been driving these streets for decades. We’re an independent Therma-Tru service provider, not a manufacturer affiliate, which means we answer to you, not a corporate warranty department. Our techs arrive background-checked and in uniform, and behind every job stands the Done Right Promise: if it’s not done right, we make it right. No fine print, no warranty expiring next year, no ticket number. Ed’s name is on the door, and on every job we do.

When a Therma-Tru door is beyond repair or replacement makes more sense than patching, we also install PGT, CGI, CWS, and ES Windows products as authorized installers. That means you get an honest comparison, not a hard sell. The one down the road.

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