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Therma-Tru Roof Repair in Westchester: What to Know First
Therma-Tru roof repair in Westchester typically runs between $350 and $1,800 depending on whether we’re replacing a rotted door frame, reseating flashing, or addressing water intrusion that’s traveled into the roofline. Most repairs take one visit, usually 2 to 4 hours, and we carry common Therma-Tru components on our trucks so you’re not waiting on a parts order from the distributor. As an independent Therma-Tru service provider, we don’t answer to the manufacturer’s warranty department, which means we fix the problem without forcing a full replacement when a targeted repair is the honest call. This page is for Westchester homeowners dealing with Therma-Tru entry doors, sliding glass doors, or door frames that have started letting water in around the roof line, flashing, or header. Call (863) 251-5864 and a live person answers, any hour.
How Therma-Tru Products Fail - and How We Fix Them
- Therma-Tru Benchmark fiberglass doors with delaminating frames. The Benchmark line is durable, but the wood-composite door frames used in many Westchester homes absorb moisture when roof flashing above the entry fails. Water wicks down behind the brick lintel, soaks the frame, and the frame swells until the door won’t latch in August humidity. The symptom people describe is “the door sticks in summer,” but the cause is the roofline flashing, not the door itself. We replace the flashing, dry out and seal the frame, and when needed, install a new PPG-painted frame rather than stripping the old one.
- Sliding patio doors with failed threshold pans under eve runoff. Therma-Tru sliding doors use an aluminum sub-sill with weep holes. Flat roof areas common in older Westchester ranch homes dump water directly onto these pans, and once the weep holes clog with dirt and roof grit, water pools and migrates under the door. You’ll see dark staining at the door’s lower corners and a musty smell after rain. We pull the door, replace the pan with corrosion-resistant flashing, add a secondary drain path, and re-set the Thermalite threshold.
- Smooth-Star and Pulse series with roof-debris impact pitting at the header. Westchester gets real wind, and palm fronds and small branches from overhanging roof edges batter the door surface where it meets the roofing system. The composite skins on these series resist impact better than steel, but repeated strikes at the top rail create hairline cracks that go unnoticed until a big storm forces water between the door skin and the polyurethane core. From the street it looks fine; inside the frame, the core is wicking water upward into the header. We replace the door slab when the core is compromised and install a drip cap that actually extends past the top rail.
- Storm door top frames loosened by roof-mounted equipment vibration. Rooftop HVAC units transfer constant micro-vibration down the wall assembly, and over a few Florida summers, the screws holding a Therma-Tru storm door’s top expander to the door frame work loose. The door rattles in its frame and eventually sags. Before reattaching anything, we check the roofline penetration above the door, because the same vibration often cracks sealant around roof vents in the same wall plane. Fix the sealant, then re-secure the expander with longer fasteners into the structural header.
- Rot at the door sill-to-roof trim junction in older Coral Terrace homes. Homes built in the 1950s and 60s often have a roof overhang that ends directly above the front door, connected by fascia trim. When that trim rots, rain follows the grain straight down behind the Therma-Tru frame. The door itself can be completely sound and still leak at the top corner. We replace the rotted trim, install proper kickout flashing where the roof edge meets the door wall, and treat the existing frame with a borate wood hardener before re-sealing. Two trades, one visit, and the leak stops.
Our Therma-Tru Roof Repair Process
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You call, a person answers. No phone tree. You describe what you’re seeing: where the water shows up, when it started, what the door or frame is doing.
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We schedule and show up. A background-checked, uniformed technician arrives with a service truck stocked for Therma-Tru work. Ed’s name is on the business, so the person at your door is accountable to Ed directly.
- 3
Diagnostics first. We trace the leak from the interior evidence back to the source. On a Therma-Tru job, that means checking the roofline above the door, the flashing laps, the door’s top rail, and the sub-sill drainage path. We find where the water is actually getting in, not just where it’s showing up.
- 4
Parts decision, explained in plain English. Where OEM Therma-Tru components matter for the repair, we use them. Where a quality aftermarket flashing or sealant will outlast the original, we tell you that too and why. No mystery line items.
- 5
The repair. We pull what needs pulling, replace what’s compromised, re-flash, re-seal, and re-set. The work area gets cleaned before we leave, not after.
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Test and guarantee. We water-test the repair where possible and walk you through what we fixed. Every job carries the 36500-Day Done Right Promise: if it’s not done right, we come back and make it right.
What Therma-Tru Roof Repair Costs in Westchester
Most Westchester Therma-Tru repairs land in these ranges:
- Flashing repair and reseal at door-to-roof junction: $350-$650
- Rotted frame repair with borate treatment: $500-$900
- Threshold pan replacement on a sliding door: $600-$1,100
- Full door slab replacement due to core water damage: $1,200-$1,800
What moves the price: how far the water traveled, whether framing lumber behind the door needs replacement, and whether we’re working on a first-floor or second-floor entry. You get a written line-item quote before any work begins, and that number doesn’t change unless you approve a change order. Call (863) 251-5864 for your free estimate, and as a Westchester homeowner, remember there’s no trip charge to come out and take a look.
Why Westchester Homeowners Call Winslow Windows & Doors for Therma-Tru Work
We’ve been in business since 2011, locally owned and owner-operated by Ed Winslow, with a published address and license number. Ed was born and raised in Miami and spent years in the field before putting his own name on the truck, so when we tell you a Therma-Tru door can be saved or needs to go, that’s the word of someone who’s actually done the work, not a sales target. Every job is backed by the 36500-Day Done Right Promise, which no national chain will put in writing. And because we’re authorized installers for PGT, CGI, CWS, and ES Windows alongside Therma-Tru, when a repair exposes a bigger problem with the roof or surrounding structure, we can handle it without handing you off to a stranger. Calls are answered by a live person 24/7, and our techs arrive background-checked and in uniform so you know who’s at your door before it opens. Upfront pricing, no surprises, and a second opinion on any written estimate at no cost. My name’s on the business. That means the job doesn’t end when we pull out of your driveway.
FAQs
An independent repair does not automatically void a Therma-Tru warranty, but using non-OEM components on a covered defect can complicate a claim. We flag warranty applicability before we start and use OEM parts where the warranty language requires it. Call (863) 251-5864 and we’ll review your situation.
Yes. Therma-Tru finishes come from a PPG paint system, and we can match the exact factory color code, including wood-grain finishes on the Pulse and Smooth-Star lines, so a repaired frame doesn’t look like a patch job. Call us for a free assessment.
Most repairs take 2 to 4 hours on site, with flashing and reseating jobs landing on the shorter end and frame or slab replacements taking longer. You’ll get a time window before we come out, and the estimate is free. Call (863) 251-5864.
If the door’s core is dry and the leak is at the flashing or trim, a repair usually solves it for a third or less of replacement cost. If the polyurethane core has wicked water, replacement is usually the honest call, and we’ll show you why. We’ll tell you straight either way.
No. If you’re inside our home county in Westchester, there is no trip charge to come out and assess the problem, and our second opinion on any written estimate is free. Call (863) 251-5864.
Get Your Free Therma-Tru Roof Repair Estimate in Westchester
If your Therma-Tru door is leaking around the roofline, sticking in the frame, or showing water stains at the corners, don’t wait until the rainy season makes it worse. Call (863) 251-5864 and talk to a real person who knows Therma-Tru construction, Westchester roof conditions, and how to fix the problem without overselling you. We’re the one down the road.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Westchester and nearby areas.
Six Reasons Homeowners Choose Winslow 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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