New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows Orlando 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 Window Replacement: The Orlando Owner’s Guide
We stock and install Therma-Tru-compatible window replacements across Orlando, with most single-window jobs running between $450 and $1,100 installed depending on size, glass package, and frame condition. Most replacements are completed in one visit, and we carry common Therma-Tru sashes, balances, and weatherstripping on the truck. Owners usually find us after noticing a window that suddenly won’t stay up, a sash that’s fogged between the panes, or a lock that no longer lines up. If that sounds familiar, here’s what you need to know before you spend a dollar.
Which Therma-Tru Models This Applies To
Therma-Tru built its name on entry doors, but many Orlando homes have Therma-Tru windows and patio doors installed alongside them, particularly in tract-built neighborhoods from the late 1990s through the mid-2010s. The compatibility gotcha: Therma-Tru window sashes are not universal across their product lines. A sash from a 2006 Therma-Tru double-hung will not necessarily drop into a 2012 frame, even if both measure 36 inches wide. The frame’s balance system – the hidden mechanism that counterweights the sash – changed designs between manufacturing runs, and the wrong balance means the window either won’t stay up or fights you when you try to open it.
Before you order anything, look for the manufacturer label etched into the glass corner or on the top edge of the sash. It will list the model series and sometimes the glass spec. If the label is gone, we measure the visible glass, the sash thickness, and the balance shoe profile on site. For Therma-Tru specifically, we order OEM sashes when the window is under ten years old or still matches current production. For older models where OEM stock is discontinued, quality aftermarket sashes from the same regional glass fabricators we trust for our PGT and CWS work usually perform just as well – and honestly, sometimes better than the originals did after a decade of Florida humidity.
Signs Your Therma-Tru Window Replacement Is Failing
- The sash won’t stay up (or won’t stay closed). The balance system is worn out. In Orlando’s humidity, the nylon balance shoes inside Therma-Tru frames get brittle faster than you’d expect, and once the shoe cracks, the sash has nothing holding it.
- Fog or condensation between the glass panes. The insulated glass unit’s seal has failed. We see this constantly in Orlando, where daytime heat and afternoon thunderstorms put sealant through extreme expansion cycles. Once the seal goes, the argon fill is gone and the window’s insulating value drops with it.
- The lock no longer lines up or binds. The sash has settled or warped slightly. This isn’t always a full replacement – sometimes it’s a lock realignment or a new sweep – but if the frame itself has shifted, replacing the sash is the honest fix.
- You feel air moving through a closed window. Weatherstripping has compressed or the sash has developed a slight twist. In summer, that air movement is your air conditioning budget walking out the window.
- The window is difficult to raise or lower. Dirt and oxidation have fouled the balance channel, or the shoe is cracked and dragging. Forcing it tends to make things worse and can pop the sash out of the track entirely.
Replacement Cost & What’s Included
In Orlando, expect a Therma-Tru sash replacement to run $450 to $900 for a standard double-hung window with clear or low-e glass. Larger windows, impact-rated glass, or jobs where the frame needs repair push toward $1,100 or slightly beyond. A full frame-and-sash replacement runs $850 to $1,600 for a typical opening. The spread comes down to glass package (low-e adds roughly 15 to 20 percent), whether your model matches current OEM production or needs a custom-ordered aftermarket sash, and whether the frame is still square and sound.
Every quote is a written price before any work starts. The line items – sash, glass, weatherstripping, labor, disposal – are spelled out in advance. If the work fails within the guarantee period, we come back and correct it at no charge. That’s the Kingswell Way, and it applies to every Therma-Tru job we do in Orlando.
DIY or Call Us?
You can safely check a few things yourself: confirm the brand label, measure the visible glass, and note whether the failure is in the glass, the balance, or the frame. That information saves time when you call. Where DIY goes wrong on Therma-Tru replacements is the balance system. Those springs and shoes are under real tension, and a balance that lets go while you’re working on it can cause a serious hand injury. The same goes for removing an old sash on a second-story Orlando home without the right support. If the failure is in the glass or the balance, call us at (850) 493-7894. If it’s just weathered weatherstripping that’s visibly peeling and accessible, that’s a reasonable homeowner fix – but we’re happy to look at it anyway while we’re out.
FAQs
In Orlando’s climate, Therma-Tru window sashes realistically last 10 to 18 years before the seal or balance system gives out, which is less than the brand’s national marketing suggests but consistent with what we see across PGT, CGI, and every other line we install. Humidity and thermal cycling are harder on windows here than almost anywhere else in the country. Call (850) 493-7894 for an assessment of your specific windows.
Sometimes yes – a binding lock, compressed weatherstripping, or a loose balance shoe can often be repaired without a full sash replacement. When the insulated glass seal has failed, the glass unit is the repair, and it’s usually more cost-effective to replace the sash as a complete assembly. We’ll tell you which applies to your window before any money changes hands.
A straightforward sash swap on a Therma-Tru window takes 45 minutes to two hours per window, depending on access and frame condition. A full frame replacement runs a half day. We’ll give you a committed arrival window when you schedule, and we show up in it.
We stock common Therma-Tru sashes, glass units, balances, and weatherstripping for the model years most common in Orlando neighborhoods, including Dr. Phillips, Baldwin Park, and College Park. For less common sizes or older series, we order directly from OEM or our approved aftermarket fabricators, typically arriving within five to seven business days. Call (850) 493-7894 with your measurements and we’ll check stock while you’re on the phone.
Owen Satterfield has been helping Orlando homeowners sort through window and door decisions for years, and he’ll tell you straight whether a Therma-Tru sash is worth replacing or whether you’d be better served by a full upgrade to a modern low-e unit. A window should work so well you forget it’s there. If yours isn’t, call (850) 493-7894 for a free estimate. We answer with a real person, any time, any day.
Written by Owen Satterfield, Owner, Westlight Windows Orlando at Westlight Windows Orlando, serving Orlando and nearby areas.
Six Reasons Homeowners Choose Westlight Windows Orlando
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.