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 homeowners arrive naming - the most impact certifications in the industry$$$
- More impact certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe value pick$$
- Vinyl systems built to strict wind codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Factory-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Therma-Tru Window Installation: The Houston Owner’s Guide
Therma-Tru window installation in Houston typically runs $420 – $680 per window installed, and most Therma-Tru window units are in stock or sourced within two to three business days. Owners usually discover a problem the same way: the window suddenly takes real effort to open, or the lower sash drops a half inch when you unlock it. We install and replace Therma-Tru window units as an independent service provider, not as a Therma-Tru dealer, and we handle the whole job from removing the old sash to sealing the new one against Houston humidity. If the frame is still square and the rough opening is sound, a sash or balance replacement usually fixes it. If the frame itself has shifted, we’ll tell you straight that a full replacement is the only honest fix.
Which Therma-Tru Models This Applies To
Therma-Tru builds windows as part of its broader door and window lineup, and the naming system matters when you need parts. Most Therma-Tru vinyl windows fall under the Simulated Divided Lite or the smooth-profile series, and the critical identifier is the manufacturing label on the top or side of the sash. Take a photo of that label before you call anyone. It lists the unit size, the glass package (low-E or clear), and the series code, and the series code is what determines whether a replacement sash or balance will actually fit.
We have seen a lot of Houston homes with Therma-Tru windows installed between 2008 and 2016, and the compatibility gotcha on those units is the balance shoe. Therma-Tru used different balance shoe profiles depending on the year and the plant the window came out of. Order the wrong shoe and the window will not stay up, no matter how many times you adjust it. When we quote a Therma-Tru job, we inspect the shoe in person before ordering anything. On OEM versus aftermarket: for glass packages and weatherstripping, quality aftermarket parts are fine and often less expensive. For balances and pivot bars, we spec OEM or a direct-match equivalent because a fraction of an inch in the shoe profile is the difference between a window that works and one that drops on your fingers.
Signs Your Therma-Tru Window Installation Is Failing
- The sash drops when unlocked. That is the balance system telling you the spring or block-and-tackle has worn out. In Houston, heat accelerates the plastic parts inside the balance, and we replace more of these than anything else.
- The window is hard to open, especially after rain. Vinyl expands in heat, but resistance that comes and goes with weather usually means the frame has shifted or the sash was never square. We check plumb and level before anything else.
- You can feel air moving around the sash on a windy day. That is failed weatherstripping or a gap in the frame seal. It is also the fastest way to watch your August electric bill climb. Houston summer air pushes right through a worn seal.
- Condensation between the glass panes. The insulated glass unit has lost its seal. There is no repair for this; the glass unit gets replaced, and we do that frequently on Therma-Tru units that are ten years or older.
- The lock no longer lines up. If the sash has dropped or the frame has twisted, the lock keeper will sit off-center. Forcing it will crack the lock or the sash. That is a sign the frame has movement, and it needs a real look.
Replacement Cost & What’s Included
For the Houston market, a Therma-Tru window installation or sash replacement typically lands between $420 and $680 per window when the existing frame is reused. Full-frame replacement, where we pull the old frame and set a new one, runs higher, usually $700 to $1,100 per opening depending on stucco or brick exterior work. The driver on cost is the condition of the rough opening, not the window itself. An opening that is still square and flashed correctly is a straightforward swap. An opening with rotted wood or a shifted header gets more labor, and we will always tell you that before the work starts, not after.
Every quote is a written line-item price. You will see the sash or window cost, the labor, the sealant and fasteners, and the disposal fee. What you will not see is a number that changes at the door. And the installation is covered by our 365-Day Done Right Promise. If it fails within a year, we come back and fix it at no charge, in writing, on every job.
DIY or Call Us?
A homeowner can safely check a few things before calling us. Look at the manufacturing label. Note whether the window is hard to open on both sides or just one. Check if the sash sits level in the frame. But when it comes to pulling the sash, replacing a balance, or swapping the insulated glass unit, this is where DIY goes wrong. Balances are under tension, and a slipping spring can cause a real hand injury from a falling sash. The glass unit is heavy and awkward to set without scratching the frame or cracking the new unit in the process. We stock the common Therma-Tru balance shoes and sash parts on the trucks we run around Houston, and Elliot Vance personally reviews every estimate before it goes out. If you want to know what you are dealing with, call (432) 278-2282 and we will talk you through what we would check first.
A meridian is a fixed line you measure everything against; that is what the name means and how we run every install. Measure twice, seal it right, and the window does the rest of the talking.
FAQs
Most single-window Therma-Tru installations take 2 to 3 hours from removal to cleanup. A full-frame replacement on a stucco or brick Houston home runs half a day to a full day because of the exterior trim and seal work. We give you a written time estimate on the quote, and we stick to it.
Call (432) 278-2282 for a free estimate on your specific window.
Yes, in most cases a failing balance, weatherstripping, or lock can be replaced without pulling the whole window. The condition that cannot be repaired is a failed glass seal, which requires a new insulated glass unit. We will always tell you which camp you are in before quoting anything. Call (432) 278-2282 for a straight answer on your window.
We carry the most common Therma-Tru balance shoes, pivot bars, weatherstripping, and sash locks on our trucks, and we can source glass units and full sashes within two to three business days. We also stock compatible parts for PGT, CGI, and CWS windows. Call (432) 278-2282 with your window label handy and we can tell you what is available before the visit.
A properly installed Therma-Tru vinyl window will last 20 to 30 years in Houston, but the parts inside it, the balances and weatherstripping, typically need replacement around the 8 to 12-year mark. Houston heat and humidity shorten the life of the plastic components more than anything else. A window that is hard to open at the 10-year mark is normal wear, not a defect. Call (432) 278-2282 and we will tell you if your window is at that stage.
When you are ready for a real answer on your Therma-Tru window installation in Houston, call (432) 278-2282. We will put the price in writing before any work starts, and we will stand behind the work for a full year.
Written by Elliot Vance, Owner & Lead Installer, Meridian Windows and Doors Houston at Meridian Windows and Doors Houston, serving Houston and nearby areas.
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.