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Therma-Tru Impact Garage Doors: The Coral Gables Owner’s Guide
Therma-Tru impact-rated garage doors in Coral Gables typically run $3,800 to $9,400 installed, depending on door size, wind-load rating, and whether the track and opener system needs retrofitting. We stock Therma-Tru-compatible impact doors and hardware, and most single-door replacements are completed in one visit. You usually find out the door has failed when a summer squall pushes water under the bottom seal, or the door binds halfway up and you notice the reinforcement stile has pulled loose from the panel face.
If you’re reading this, you’re likely staring at a door that no longer clears the tracks or carries its wind-load sticker legibly, and you want to know whether you’re replacing one panel or the whole system. That is the right question to ask first in Coral Gables, where the difference between a door rated for 140 mph and one that just looks like it matters when August rolls around.
Which Therma-Tru Models This Applies To
Therma-Tru’s impact garage door program is narrower than their entry door line, and that is worth knowing before you order parts. The most common lines we see in Coral Gables garages are the Therma-Tru Smooth-Star and Fiber-Classic impact-rated carriage doors, along with their flush panel models in the 16-by-7 and 18-by-8 footprint. These doors carry a Miami-Dade NOA (Notice of Acceptance) sticker on the interior panel near the hinge line. That sticker is your compatibility key. If it’s faded or missing, we match by measuring the panel thickness, stile width, and the spacing of the hinge attachment points, because a door stamped for Dade County wind loads uses a different reinforcement core than a standard Florida product.
We are an independent service provider, not a Therma-Tru company operation, which means we can be blunt with you about the OEM-versus-aftermarket decision. For bottom seals, weatherstripping, rollers, brackets, and struts, quality aftermarket parts hold up well and cost 30 to 45 percent less than Therma-Tru’s branded hardware. For the panel itself, we recommend genuine Therma-Tru replacement panels when matching an existing door face profile, because the embossed carriage texture rarely matches across manufacturers. We quote both on paper, side by side, so you see exactly what you are buying before you spend a dollar.
Signs Your Therma-Tru Impact Garage Door Is Failing
- The door drags or binds on one side partway up. In most Therma-Tru impact doors we see in Coral Gables, this is a worn roller or a hinge bracket that has loosened under repeated wind cycling. The reinforcement core itself is usually still sound, but the hardware attaching it has not been checked in years.
- Water puddles inside under the door after a heavy rain. The bottom astragal on a Therma-Tru impact door compresses over time in heat and humidity. Once it develops a flat spot or a tear, water intrusion starts, and the door is no longer performing to its wind and water rating.
- You see daylight or feel air moving at the jamb corners. This is almost always a compressed or cracked jamb seal. On impact-rated doors, that seal is part of the pressure-rating system, not just a comfort detail. If air moves, water will too.
- The panel face shows a hairline crack running from the hinge mortise. This is the one sign you should not wait on. A crack at the hinge line means the door has been racking, and the panel is losing its structural bond where it matters most.
- The wind-load sticker is gone, unreadable, or predates current South Florida code. No sticker means no proof of compliance. If you ever sell the house or make an insurance claim, that missing label becomes a problem no repair can fix.
Replacement Cost & What’s Included
A Therma-Tru impact garage door replacement in Coral Gables typically lands between $3,800 and $9,400 installed. The range is driven by door size, panel design, wind-load rating (180 mph products cost more than 140 mph products), and whether the existing track, springs, and opener can be reused. Here is how the pricing generally splits:
| Component | Typical Coral Gables Range |
|---|---|
| Therma-Tru impact door, 16’x7′, single | $2,900 – $4,800 |
| Therma-Tru impact door, 16’x7′, double-carriage | $4,200 – $6,900 |
| Track, hardware, and reinforcement struts | $400 – $1,000 |
| Labor, single-door replacement | $500 – $1,500 |
| Opener retrofit or replacement | $350 – $850 |
Our quote is a fixed price with no change orders. We register both warranty layers in writing before our truck leaves your driveway, per The Keystone Standard, and every job carries our Done Right Promise. If it is not done right, we make it right. No paperwork fights, no arguing.
DIY or Call Us?
There are things a homeowner can safely check on a Therma-Tru impact door, and things no homeowner should touch. You can and should inspect the bottom seal for flat spots, retighten loose hinge bolts with a hand socket, and clear debris from the tracks. You should not attempt to remove a damaged impact panel or replace the extension springs or torsion assembly yourself. These doors are heavy in ways standard garage doors are not, and the stored tension in the spring system will injure you if handled wrong.
What we often find in Coral Gables is a door that was installed level but later settled out of square, leaving the weatherstripping loaded unevenly. That is not a panel problem, and sometimes the fix is a track correction and new seals for well under $800. Other times the panel face is genuinely compromised and nothing short of replacement restores it. We can tell you which one you have by looking at it, and the estimate is free. Call (954) 507-3613 and we will come measure it twice, the way Dale Kessler insists every opening gets measured.
FAQs
With proper hardware maintenance, a Therma-Tru impact garage door in Coral Gables typically lasts 15 to 20 years, though the salt air and summer humidity mean the bottom seal and jamb weatherstripping will need replacement every 3 to 5 years regardless of the door itself. The panels hold up well; the rubber and nylon parts do not. Call (954) 507-3613 and we can tell you within an hour of looking at it whether the door has another decade in it or needs retirement.
Hairline cracks at the hinge line can sometimes be stabilized with a reinforcement plate and new hinges on a flush-panel Therma-Tru door, but a cracked carriage-profile panel usually means full door replacement because the embossed face is not repairable to a level consistent with its wind rating. If it is not in writing, it is not a guarantee - it is just a conversation. We will show you exactly what is fixable and quote you both options on paper.
A single-door Therma-Tru impact replacement in Coral Gables takes 4 to 7 hours on site, with most jobs completed in one visit. If the existing track and opener can be reused, plan on the shorter end. Call (954) 507-3613 for a schedule window, and we will be there when we say.
We stock common Therma-Tru-compatible hardware on our trucks, including bottom seals, rollers, hinge brackets, struts, and astragals for the most popular door sizes in Coral Gables, and we can source full replacement doors within 5 to 10 business days for most configurations. If you need it measured and matched, call (954) 507-3613 and the estimate is free.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Coral Gables and nearby areas.
Six Reasons Homeowners Choose TruePane Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.



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