New windows and doors improve comfort, cut energy bills and add long-term value to your home. Juniper Windows Pasadena 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 Sliding & Patio Doors: The Pasadena Owner’s Guide
We stock and install Therma-Tru-compatible sliding and patio door parts across Pasadena, with complete replacement doors typically running $850 to $2,400 installed depending on panel size, glass package, and hardware. Most roller, track, and handle-set swaps run $145 to $380 in parts and labor. You usually find out a part has failed when the door suddenly drags, won’t latch, or a roller bearing crumbles into the track – and then the door weighs 180 pounds and you’re fighting it every morning.
Key Takeaways
- Therma-Tru sliding doors in Pasadena homes commonly fail first at the rollers and the latch strike, not the glass or frame
- Our written quote covers parts and labor together – no surprise line items after work starts
- We’re an independent service provider, not affiliated with Therma-Tru – which means we source OEM and quality aftermarket parts without markup games
- Sean Mackey and our Pasadena crew stock the most common Therma-Tru roller assemblies on the truck
Which Therma-Tru Models This Applies To
Therma-Tru has manufactured sliding patio doors under several series names over the years, including the Slimline, Classic-Craft, and the more recent Pulse and Benchmark lines. The critical compatibility gotcha with Therma-Tru sliding doors is the roller assembly: older Slimline units from the early 2000s use a 1-1/4 inch diameter tandem roller, while Benchmark and Pulse series doors built after roughly 2012 switched to a 1-1/2 inch stainless roller with a different axle height. Ordering the wrong roller means the door sits too low or too high in the frame and chews up the track within weeks. We match parts by pulling the existing roller and measuring the wheel diameter, axle width, and housing bracket spacing – not by model name alone, because the label is often faded or painted over after ten years of Pasadena sun.
For handle sets and lock hardware, Therma-Tru uses a mortise-style latch on most sliding doors, which is different from the surface-mount latches on cheaper builder-grade units. Aftermarket options exist, but we’ve seen too many generic latch kits that don’t align with the existing strike plate holes. For handles and rolls we default to OEM parts when the door is still under warranty, and quality aftermarket equivalents – WRS or Prime-Line usually – when it isn’t. Both get you back to working order; the difference is whether the manufacturer pays or you do.
Signs Your Therma-Tru Sliding & Patio Doors Is Failing
- The door drags or you have to lift it to move it. This is almost always a flattened roller bearing or a worn roller wheel. Once a roller stops rolling and starts sliding, it grinds the track and the repair cost climbs fast.
- The handle moves but the latch doesn’t catch. The mortise latch spring inside the handle mechanism breaks, or the strike plate in the jamb drifts out of alignment. Pasadena’s temperature swings mean wood jambs expand and contract enough to shift that strike plate a fraction of an inch.
- The door sounds like gravel when it moves. That’s a roller bearing that has disintegrated and is now dragging metal fragments across the aluminum track. Every pass gouges the track deeper.
- You can see daylight or feel air through the meeting stile. The interlocking weatherstripping between the two panels has compressed or torn. In Pasadena’s summer heat, that’s cool air escaping and dust coming in – and in winter, the draft gets old fast.
- The door locks but a firm push opens it. The keeper or lock pawl has worn down, or the door panel has settled out of square. This is also a security issue – a sliding door that doesn’t positively lock is a door that invites the wrong kind of attention.
Replacement Cost & What’s Included
Here’s what Therma-Tru sliding and patio door work typically costs in Pasadena based on the jobs we’ve done across the city:
| Service | Parts & Labor Range | Typical Time |
|---|---|---|
| Roller replacement (both panels) | $145 – $260 | 45-60 minutes |
| Handle set & latch replacement | $120 – $240 | 30-45 minutes |
| Track repair or replacement | $200 – $450 | 1-2 hours |
| Weatherstripping replacement (full perimeter) | $85 – $180 | 30-60 minutes |
| Full sliding door replacement (installed) | $850 – $2,400 | Half day to full day |
Every quote we give is a written line-item price before any work starts. The range varies because some Pasadena homes have standard 6-foot sliders, others have 8-foot or multi-panel units, and glass packages swing the cost. When we quote a roller swap, the number on the page is the number you pay – parts, labor, and the trip to your door. The work itself is covered by our 365-Day Done Right Promise: if the repair fails within a year, parts and labor are on us, in writing.
DIY or Call Us?
You can safely diagnose most Therma-Tru sliding door issues without tools: check for visible roller debris in the track, try the handle and watch whether the latch actually engages, and run your hand along the weatherstripping to feel for tears. Where DIY goes sideways is the fix itself. Sliding door panels are heavy – a 6-foot dual-pane Therma-Tru panel weighs 140 to 190 pounds. Getting a roller out requires lifting the panel, tilting it, and pulling the bottom assembly without bending the frame or dropping glass on concrete. We’ve rebuilt doors for Pasadena homeowners who tried, dropped a panel, and cracked a $400 dual-pane unit in the process. Sean Mackey will say it plainly: if the frame isn’t right, nothing else matters – let’s start there. Call (626) 657-5977 and describe what the door is doing. We’ll tell you over the phone whether it sounds like a $140 roller swap or something bigger.
FAQs
Therma-Tru rollers typically last 8 to 15 years in Pasadena, where dry heat accelerates plastic and rubber component wear faster than coastal climates. If your door is over 12 years old and dragging, the rollers are the first thing to check. Call (626) 657-5977 and we’ll inspect them on site.
Most Therma-Tru sliding door problems – rollers, handles, weatherstripping, track alignment – are repairable for under $400. Full replacement only makes sense when the glass is fogged, the frame is warped, or the door predates current energy codes. We’ll give you a straight answer after looking at it.
A typical roller replacement on a Therma-Tru sliding door takes 45 to 60 minutes, and a handle and latch swap takes 30 to 45 minutes. We stock common Therma-Tru roller sizes on the truck, so most Pasadena jobs are done in a single visit.
We keep the most common Therma-Tru roller assemblies, handle sets, and weatherstripping profiles in stock, including parts for older Slimline and Classic-Craft doors that are harder to find. For less common sizes we source OEM or quality aftermarket parts – options include PGT, CGI, and CWS among the lines we carry – usually within one to two business days.
Written by Sean Mackey, Owner, Juniper Windows Pasadena at Juniper Windows Pasadena, serving Pasadena and nearby areas.
Six Reasons Homeowners Choose Juniper Windows Pasadena
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.