New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows Austin pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
1. 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.
2. 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.
3. 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 Sliding & Patio Doors: The Austin Owner’s Guide
We stock and install Therma-Tru-compatible sliding and patio door rollers, handles, locks, weatherstripping, and track assemblies, with most complete replacement parts and labor in Austin running between $180 and $640 depending on what’s actually failed. If your door drags, sticks, or sounds like it’s rolling over gravel, the problem is almost always the bottom rollers or a clogged lower track, not the door panel itself. Austin’s dry heat and fine limestone dust work their way into roller bearings slowly, and most homeowners don’t notice until the door gets hard enough to move that the handle starts to flex.
We’re an independent service provider and not affiliated with Therma-Tru, but our technicians work on their sliding and patio door hardware every week because it’s one of the most common door brands in Austin homes built from the 1990s forward.
Which Therma-Tru Models This Applies To
Therma-Tru’s sliding patio door lines include the Smooth-Star, Classic-Craft, and the newer Pulse series, and the hardware changes across generations, which is where we see a lot of mismatched parts. The first thing we do on site is pull the door panel and read the sticker on the edge or inside the stile, because a 2004 Classic-Craft roller will not seat correctly in a 2018 Pulse track, even though both doors are Therma-Tru. The track profiles changed when Therma-Tru moved some manufacturing to fiberglass-reinforced frames, and the roller housings got taller by roughly an eighth of an inch.
On the parts side, we’ve found that OEM Therma-Tru rollers and handlesets are worth the cost for anything load-bearing or security-related, especially the multi-point lock hardware on Pulse patio doors. Aftermarket rollers can work fine on interior slider doors, but for a patio door in Austin that gets opened two hundred times a year in dry, gritty conditions, we recommend OEM or a quality stainless-bearing equivalent, not the plastic-wheel hardware store version that lasts a season. Owen Satterfield has made it a rule on our trucks: if the part keeps the door moving or keeps the door locked, we use the good version.
Signs Your Therma-Tru Sliding & Patio Doors Is Failing
- The door drags or takes real effort to open. This is almost always worn bottom rollers that have flattened from years of Austin dust grinding the nylon wheels down. If you have to brace your foot and pull with both hands, the rollers are shot and the door is now wearing down the track itself.
- A grinding or crunching sound when the panel moves. The roller bearings have failed and the wheel is either seized or disintegrated, which means the metal or plastic housing is now scraping the aluminum track. Left alone, this scores the track and turns a $40 roller job into a full track replacement.
- The handle feels loose or won’t lift to lock. Therma-Tru’s mortise-style handlesets wear at the internal gear, especially on doors that get locked and unlocked daily. If you have to wiggle the handle to get the latch to seat, the gear teeth are stripping.
- Visible daylight or dust at the bottom corners. Failed weatherstripping or a roller that’s dropped out of alignment lets Austin’s fine dust pour in and undermines your AC efficiency. You’ll usually see the gap widen on one corner first.
- Water staining on the interior floor near the track. The weep holes in the bottom track are clogged with debris and water is backing up under the frame. This is a drainage problem, not a seal problem, and it’s common on older Austin slabs that have settled half an inch.
Replacement Cost & What’s Included
Here’s what Therma-Tru sliding door repair and parts replacement actually costs in Austin, installed by us, with the price put in writing before any work begins.
| Repair Type | Typical Austin Price Range | What’s Included |
|---|---|---|
| Bottom roller replacement (both rollers) | $180 – $260 | OEM or stainless-bearing rollers, track cleaning, lubricant, alignment check |
| Track repair or replacement | $300 – $520 | Straightening or new aluminum track section, bedded and sealed to existing frame |
| Handleset and latch replacement | $220 – $380 | Therma-Tru mortise handleset, key rekey or cylinder swap, strike alignment |
| Weatherstripping and weep cleaning | $140 – $210 | New bottom and side seals, weep channel clearing, track detail |
| Full hardware overhaul | $480 – $640 | Rollers, handleset, weatherstripping, track service, door re-aligned |
These ranges hold for most Therma-Tru sliding and patio doors in Austin to the extent we can see the door before we quote it. What moves the number up is the frame condition: if a Central Austin bungalow has settled and the original track is no longer level, the fix is more than a parts swap. That’s why we give you a written price after we look at the door, not over the phone, and why that price stays the same when the work is done. Every repair carries our workmanship warranty, and if something we fixed fails inside the guarantee period, we come back and correct it at no charge, no negotiating required.
DIY or Call Us?
You can safely check three things before calling us: pull the bottom track clear of debris with a shop vac, look at the track for visible scoring or bends, and confirm the door is out of level by checking the gap at the top corners from inside. Those checks help you describe the problem and they cost you nothing.
Where DIY goes wrong on a Therma-Tru patio door is pulling the panel to access the rollers. These door panels are heavy, typically 80 to 140 pounds, and without the right lift technique and a second set of hands, you can drop the panel and shatter the glass or damage the frame. If the door has a multi-point lock system, the hardware is under spring tension inside the mortise pocket and can fly apart if opened wrong. We’ve fixed doors after a well-intentioned homeowner made a $60 roller job into a $900 frame repair. If you’d rather skip that risk, call (254) 322-3468 and we’ll come take a look, free estimate included.
FAQs
In Austin, you can expect eight to twelve years from quality Therma-Tru rollers before the bearings wear or the wheels flatten, though doors on the west-facing side of the home or near open lots with blown dust tend to wear faster. If your door is older than that and getting hard to move, the rollers have likely already failed.
In most cases we can straighten and clean an aluminum track rather than replace it, as long as it’s not deeply scored or corroded at the weld points. If the track is too far gone, we’ll tell you that in the written estimate and show you the problem before any paid work starts.
A standard roller replacement takes about an hour and a half from start to finish, including pulling the panel, swapping the rollers, cleaning the track, and re-aligning the door. A full hardware overhaul with handleset and weatherstripping is usually done inside three hours.
We carry common Therma-Tru roller sizes, handleset variations, and weatherstripping profiles on our service vehicles, along with parts for PGT, CGI, and CWS patio doors, since those are the other major brands we see across Austin. If we don’t have your exact part on hand, we order it and come back when it lands, usually within a few business days.
If your Therma-Tru sliding door is fighting you, dragging, grinding, or letting Austin’s dust and heat under the frame, call (254) 322-3468 and we’ll schedule a time that works. You’ll get a written price before any work begins, a technician who introduces himself at the door, and a guarantee on the work that we hand you in writing when the job is done. Measure it right the first time and the rest of the job takes care of itself.
Written by Owen Satterfield, Owner, Westlight Windows Austin at Westlight Windows Austin, serving Austin and nearby areas.
Six Reasons Homeowners Choose Westlight Windows Austin
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.