New windows and doors improve comfort, cut energy bills and add long-term value to your home. Meridian Windows and Doors Houston pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Therma-Tru Door Installation: The Houston Owner’s Guide
Therma-Tru door installation in Houston typically runs $450 – $1,200 installed for a single entry door replacement, depending on slab size, frame condition, and whether we’re matching an existing threshold or pulling the whole unit. Most single-door swaps are completed in one visit, and we stock common Therma-Tru replacement sills, sweeps, and weatherstripping on our trucks. Here’s the usual way owners find this page: the door still looks fine from the street, but air is sneaking in around the bottom, the latch won’t catch cleanly, or someone’s shoulder is doing more work than it should. That’s a door installation problem, not a door problem.
Which Therma-Tru Models This Applies To
We install and service the full Therma-Tru entry door range: the Classic-Craft and Fiber-Classic fiberglass lines, Smooth-Star steel, and the Pulse and Benchmark door systems. Each series takes different sill profiles and jamb depths, and that’s where the compatibility problems hide. A Classic-Craft slab is 1¾ inches thick; a Smooth-Star slab is thinner. The sills are not interchangeable between the two. If you’re unsure what you have, look for a label on the hinge edge of the slab near the bottom, or call us and we’ll walk you through checking the slab thickness and hinge pattern before we ever schedule the truck.
On parts, we use OEM Therma-Tru components when the series demands it, particularly on their compression sill systems and corner seal pads. For common wear parts like sweeps and bottom seals, there are quality aftermarket equivalents that match factory specs for less money, and we’ll tell you when that’s a sensible option. We also stock compatible parts for PGT, CGI, and CWS doors, so if a neighbor recommended us and you’ve got a different brand, we can likely still help.
One Houston-specific compatibility gotcha: high humidity and frequent rain mean the bottom sweep and sill cap take more abuse here than in drier climates. A Therma-Tru door in Houston that was installed ten years ago without replacing the sill cap will usually show wear at the threshold corners, because that’s where runoff sits after a storm blows rain at the entry. We check the sill cap on every estimate, not just the slab.
Signs Your Therma-Tru Door Installation Is Failing
- Daylight under the door or a visible gap at the sweep. The bottom seal has compressed or the sill cap has settled. You’re losing conditioned air every hour that gap exists, and in a Houston August, that shows up on the electric bill fast.
- The latch doesn’t line up with the strike plate. The slab has sagged on the hinges, usually because hinge screws stripped out or the jamb has shifted. Tightening the screws is a short-term fix; replacing them with longer screws into the framing is the permanent one.
- The door sticks at the top corner on the latch side. This is a classic sign the frame has moved or the slab has swelled from humidity absorption. Houston’s humidity will find any unsealed edge and work on it.
- You can feel air moving around the perimeter, even with the door closed. The weatherstripping has failed or was never seated correctly. A door that leaks air is a door that’s working against your AC.
- The threshold rocks when you step on it. The sill wasn’t bedded properly, or water has rotted what it sits on. That’s a structural problem waiting to get more expensive.
Replacement Cost & What’s Included
Here’s what we quote in Houston, written down before any work starts:
| Scope | Typical Installed Range |
|---|---|
| Bottom sweep replacement | $95 – $180 |
| Weatherstripping replacement (full perimeter) | $140 – $260 |
| Sill and threshold replacement | $300 – $550 |
| Full slab replacement (same frame) | $650 – $1,100 |
| Full unit replacement (slab, frame, sill) | $900 – $1,800+ depending on size and glass |
The number moves based on slab width, whether the existing frame is square and salvageable, and whether the sill has let water into the subfloor. We don’t charge a “Houston humidity surcharge” or any other made-up line item. You get one written price with parts and labor separated, and that price does not move at the door. Every installation is covered by our 365-Day Done Right Promise: if the work fails within a year, we come back at no charge. The second visit is free too, so there’s no “we’ll see if it’s still under warranty” runaround.
DIY or Call Us?
What you can safely check yourself: confirm the slab is 1¾ inches thick, look for the series label on the hinge edge, and note whether the gap is at the bottom, top, or latch side. That information helps us quote accurately over the phone. What goes wrong with DIY on Therma-Tru units specifically: their compression sills have internal seals that are easy to misalign, and forcing a slab that’s out of square can crack the fiberglass skin, at which point you’re replacing the door instead of adjusting it. Door slabs are also heavy enough to injure you; a fiberglass entry slab is 60 to 90 pounds, and it fights back when a hinge pin binds. We’re glad to walk you through diagnostics on the phone before you decide. If it’s beyond a sweep and weatherstripping, calling a pro is the cheaper path, because a botched attempt usually costs more to undo than the original repair would have cost. Call (432) 278-2282 and we’ll talk you through what you’re seeing.
FAQs
A correctly installed Therma-Tru entry door will last 20 to 30 years in Houston, but the wear parts, the sweep, the weatherstripping, and the sill cap, need attention every 5 to 8 years given our rain and humidity. The slab itself is fiberglass or steel over a foam core; it doesn’t rot like wood. The frame and sill are where water does its damage, which is why we inspect them on every install. Call (432) 278-2282 for an exact assessment of your door’s condition.
Yes, if the slab is sound and the frame hasn’t shifted, most failures are repairs: a new sweep, new weatherstripping, a sill cap, or re-shimming the jamb. In Houston, we repair more Therma-Tru doors than we replace, because the fiberglass and steel slabs hold up, it’s the seals and sills that give out first. If the slab has cracks in the skin or the frame has rot, replacement is the honest answer. We’ll tell you which one applies before any money changes hands.
A sweep or weatherstripping replacement takes 30 to 60 minutes. A full slab replacement in the same frame runs 2 to 3 hours. A complete unit replacement with new frame and sill takes 4 to 6 hours, including removing the old unit and cleaning up. We don’t leave a job half-done; the door is hung, sealed, and operating before we leave the driveway.
We stock common Therma-Tru sweeps, weatherstripping, sill caps, and corner seals on our trucks, so most repairs happen on the first visit. Unusual sizes or series-specific parts may take a few days to source, and we’ll tell you that upfront with a firm date, not a “we’ll call you.” Our Houston location carries parts for the Classic-Craft, Fiber-Classic, Smooth-Star, and Benchmark lines, plus compatible components for PGT, CGI, and CWS doors.
Written by Elliot Vance, Owner & Lead Installer, Meridian Windows and Doors Houston at Meridian Windows and Doors Houston, serving Houston and nearby areas.
If your Therma-Tru door isn’t sealing, latching, or sitting square, call (432) 278-2282. We’ll talk through what you’re seeing, give you a realistic number, and put the price in writing before any work starts. That’s how every job runs at Meridian Windows and Doors Houston.
Six Reasons Homeowners Choose Meridian Windows and Doors Houston
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
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.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.