New windows and doors improve comfort, cut energy bills and add long-term value to your home. Meridian Windows and Doors San Jose 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 Replacement: The San Jose Owner’s Guide
If your Therma-Tru window has a cracked sash, a failed seal, or hardware that no longer locks, we stock and install replacement components for most Therma-Tru lines, and the typical installed price in San Jose runs $220 to $480 per window when the frame is sound. That includes the replacement sash, balance, or hardware, the labor, and haul-away of the old part. Most owners don’t replace the whole window unit; they replace the failed part, and that’s where this page will save you real money.
What brings people to this page is usually the same story. A window that won’t stay open. A sash that cracked along the corner. Condensation between the glass panes. Or a lock that turns but doesn’t catch. These are part failures, not whole-window failures, and they’re fixable without tearing out the frame or the exterior trim.
Which Therma-Tru Models This Applies To
We work on Therma-Tru casement, double-hung, sliding, and awning windows across the series lines sold in California, including the Classic-Craft, Slim-Line, and the builder-grade series that shipped into a lot of San Jose developments in the 2000s and 2010s. The compatibility gotcha with Therma-Tru is this: the balance system on double-hungs changed between the 2005 and 2012 production runs, so a sash from a 2008 unit won’t fit a 2015 frame even if the visible dimensions match. We match by the manufacturing code on the spacer bar, not by measuring the glass alone.
On the OEM versus aftermarket question, we’re direct about it. For glass and sash assemblies, OEM is the right call because Therma-Tru runs tighter dimensional tolerances than most aftermarket shops. For balances, tilt latches, and weatherstripping, quality aftermarket equivalents from Caldwell and Truth hardware hold up equal to or better than original spec, and they cost 15 to 30 percent less. We stock both, and we’ll show you the price difference on the written quote before any work starts.
Signs Your Therma-Tru Window Replacement Is Failing
- Sash won’t stay up (double-hung). This is almost always a worn spiral balance or a broken tension spring inside the balance tube. The window isn’t broken; the lifting mechanism is.
- Fog or condensation between the panes. The seal on the insulated glass unit has failed. In San Jose’s warm-dry summers and cool damp winters, seals fail faster than the factory rating, which is usually 10 to 15 years on paper.
- Lock won’t engage or the sash droops. The corner gussets or the lock keeper have worn. This is also a security issue, and it’s the one sign we say don’t wait on.
- Crack through the pane or a cracked sash corner. Therma-Tru sash frames are vinyl with internal reinforcements. A sharp impact or a binding track can crack the corner weld, which spreads under thermal expansion.
- Drafts at the sill or meeting rail. The weatherstripping is compressed, or the sash has settled out of square. Either way, the fix is a part swap, not a full window.
Replacement Cost & What’s Included
Let’s get the money question out of the way. In San Jose, replacing a failed Therma-Tru part runs $220 to $480 per window installed when the frame is intact. Here’s the breakdown:
- $90 to $180 – replacement balance, tilt latch, or lock set, including the part and labor.
- $180 to $320 – replacement sash assembly for a double-hung or slider.
- $280 to $480 – sealed glass unit replacement for a casement or awning.
- $600 and up – full window unit replacement, only when the frame itself has rot or extrusion damage.
Every quote is written, line-itemed, and delivered before work starts. The price does not move at the door. And the work is covered by our 365-Day Done Right Promise: if the repair fails within a year, we come back and fix it at no charge.
DIY or Call Us?
Here’s the honest split. You can check the manufacturing code on the spacer bar, confirm whether the sash droops or the balance is shot, and decide if it’s a part problem or a frame problem. That’s diagnosis, and it’s safe to do. The installation is where DIY goes wrong. Therma-Tru balances are under spring tension, and a slipped screwdriver on a loaded balance can take a finger. Corner-weld cracks can’t be glued; the sash has to be replaced. And if a sash is installed slightly out of plane, the lock never seats and the window never seals.
If you’re not sure what failed, call us. We’ll identify the part, quote the fix, and do it right the first time. Call (669) 201-3739 and ask for a window part inspection.
FAQs
Factory-rated service life is usually 10 to 15 years, but in San Jose’s climate cycle, realistic life is 8 to 12 years before the seal fails and condensation shows between the panes.
Weatherstripping, tilt latches, and balance tubes are repair-in-place items. A cracked sash, failed IGU, or broken lock keeper needs replacement, not repair. Call (669) 201-3739 and we’ll tell you which one you have.
A balance, latch, or weatherstripping swap runs 30 to 60 minutes per window. A sash or IGU replacement runs 60 to 90 minutes. Full unit replacement, including trim and flashing, runs half a day.
Our San Jose trucks carry the most common Therma-Tru balances, tilt latches, and lock sets for same-visit replacement. Sash assemblies, IGUs, and frame-specific hardware are ordered to the manufacturing code. We’ll tell you which on the first call.
We’re an independent service provider and not affiliated with Therma-Tru. We replace Therma-Tru parts and full units alongside PGT, CGI, CWS, and other manufacturer lines we stock, so the right fix gets spec’d for the job.
San Jose window part failing? Call Meridian Windows and Doors San Jose at (669) 201-3739 for a free estimate. Written price first, 365-Day Done Right Promise on every job, and phones answered by a live person 24/7. Measure twice, install once – the warranty covers the window, not the gap around it.
Written by Elliot Vance, Owner & Lead Installer, Meridian Windows and Doors San Jose at Meridian Windows and Doors San Jose, serving San Jose and nearby areas.
Six Reasons Homeowners Choose Meridian Windows and Doors San Jose
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.