Therma-Tru Impact Garage Doors Nationwide | Winslow Windows & Doors

Therma-Tru Impact Garage Doors: The Fort Lauderdale Owner’s Guide

We install Therma-Tru impact-rated garage doors throughout Fort Lauderdale, and a complete door with installation typically runs $1,800 to $4,200 depending on size, series, and hardware. Most homeowners find out they need us when the door won’t seal flush against the track, a panel cracked after storm debris hit it, or the impact rating sticker has faded to the point their insurer flagged it during a wind-mitigation re-inspection. If you’re staring at a Therma-Tru door that’s underperforming or failed outright, here’s exactly what to know before you spend a dollar. Winslow Windows & Doors is an independent service provider, not affiliated with Therma-Tru, but we’ve installed and repaired their impact doors across South Florida for over a decade.

Call (904) 747-8989

Key Takeaways:

• Therma-Tru impact garage doors in Fort Lauderdale run $1,800-$4,200 installed depending on size and series.
• OEM hardware is worth the extra cost on Therma-Tru doors. Aftermarket rollers and hinges wear faster in salt air.
• If the door won’t seal or the panel cracked, don’t force it. A misaligned impact door loses its wind rating.
• We stock common Therma-Tru parts on the truck. Most swaps happen same day.
• Call (904) 747-8989 for a free estimate. Ed Winslow stands behind every install.

Which Therma-Tru Models This Applies To

Therma-Tru builds impact garage doors under a few series names, and the parts aren’t always interchangeable across them. The Classic-Craft line, the Fiber-Classic collection, and the Pulse series each use slightly different panel thicknesses and hardware spacing. The quickest way to identify yours is the sticker on the interior face of the door near the top panel. It’ll list the series, the impact rating (Windstorm or Miami-Dade), and the production date. If that sticker’s gone, measure the panel thickness. Therma-Tru impact doors are either 1-3/8″ or 2″ thick. That measurement alone narrows down which hardware kit fits. A 2″ panel with 1-3/8″ rollers will wobble in the track and eat the hinges within a year. We see that mismatch regularly in older Fort Lauderdale homes near Las Olas where doors have been worked on by multiple crews over the decades.

On the OEM-versus-aftermarket question for Therma-Tru specifically: their impact doors rely on a tight marriage between panel density and hardware tolerances. Aftermarket rollers and hinges for non-impact doors will physically bolt on, but they don’t absorb the same wind load. In South Florida salt air, cheap aftermarket rollers also corrode at the bearing and start squealing within two years. We recommend OEM Therma-Tru hardware for anything that carries wind load. For non-structural items like weatherstripping and bottom seals, good aftermarket equivalents perform fine and cost less.

Signs Your Therma-Tru Impact Garage Doors Is Failing

• The door no longer seals flush against the ground or side jambs. Bottom seals compress over time in Fort Lauderdale heat and can leave a visible gap at the corners. That gap lets water in during afternoon thunderstorms and means the door is no longer doing its wind-rated job.
• You hear grinding or popping when the door travels. This usually means a roller bearing has corroded or a hinge pin has worn oval. On impact doors, worn hinges let the panels flex independently, which defeats the whole point of a rigid wind-rated assembly.
• A panel is visibly cracked, dented, or the exterior skin is peeling from the foam core. Therma-Tru impact panels are engineered as a single unit. Once the skin separates, the panel loses its structural integrity and needs replacement. Patching won’t restore the wind rating.
• The door is heavier than it used to be, or the springs look stretched and separated. High-tension springs carry the entire weight of an impact door, which is heavier than a standard door because of the reinforced panels. When springs fade, the opener works overtime and burn out follows.
• Your insurer flagged the door during a wind-mitigation inspection. This is increasingly common in Fort Lauderdale. If the impact-rating sticker is missing or the door shows signs of prior damage, the inspector can fail it, which changes your premium. A proper replacement with documentation clears it.

Replacement Cost & What’s Included

For Fort Lauderdale specifically, here’s what we’re quoting homeowners right now:

• Single-car impact garage door (8’x7′ or 9’x7′): $1,800-$2,600 fully installed
• Double-car impact garage door (16’x7′ or 18’x7′): $2,800-$4,200 fully installed
• Hardware-only replacement (rollers, hinges, springs, cables) on existing Therma-Tru panels: $240-$680 depending on what’s worn
• Bottom seal and weatherstripping replacement: $95-$220

The range is driven by door size, series, and whether we’re reusing the existing tracks or setting fresh ones. Coastal homes within a mile of the beach pay slightly more because we use upgraded stainless hardware that resists salt corrosion better than the standard galvanized parts. Every quote is line-itemed before we start. You’ll see exactly what the door costs, what the labor costs, and what the hardware costs. No change orders mid-job. The workmanship is covered under our 36500-Day Done Right Promise. If it’s not done right, we come back and make it right. Ed’s name is on the door, and on every job we do.

DIY or Call Us?

An honest split here, because we’re not going to tell you every repair needs a pro. You can safely check your bottom seal for gaps and stiffness, clean the tracks with a dry rag, and visually inspect the panels for cracks. Those are homeowner tasks. What you should not touch are the springs and cables. The springs on a Therma-Tru impact door are under enough tension to take a finger off or worse. They fail without warning, and when they go, they go violently. Even seeing a frayed cable means the door is a hazard until the spring tension is released properly. We answer the phone 24/7, and a real person picks up, not a call center. If your door is making sounds it didn’t make last month, call (904) 747-8989 before it becomes a bigger repair. Free estimates, no trip charge in our home county.

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