New windows and doors improve comfort, cut energy bills and add long-term value to your home. Meridian Windows and Doors Fresno 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 in Fresno: What Owners Need to Know
If your Therma-Tru window unit is failing, warped, or no longer sealing against Central Valley heat, we can replace it. Meridian Windows and Doors Fresno installs Therma-Tru-compatible windows throughout Fresno, with most single-unit replacements running $850 – $1,600 installed depending on size, frame condition, and glass package. We stock common Therma-Tru sizes on our trucks, and we’re an independent service provider, not affiliated with Therma-Tru. Most Fresno owners call us after they notice the window won’t latch cleanly or the seal between the panes has fogged over, which is almost always a failed insulated glass unit, not a problem with the frame itself.
Which Therma-Tru Models This Applies To
Therma-Tru builds window systems across a few distinct lines, and the installation requirements differ by series. The Classic-Craft and Fiber-Classic series carry a thicker frame profile with a deeper jamb depth, usually 4-9/16 inches, which matters when an older Fresno home has 2×4 wall framing. The Slim-Line series uses a narrower profile and is often the better match for stucco openings where you don’t want to disturb the exterior finish. Here’s the compatibility check we run every time: look for the Therma-Tru AAMA sticker on the frame itself. It lists the series, the glass package, and the manufacturing date. If the sticker is faded or painted over, measure the visible glass width and height, then add 2-1/4 inches to each dimension, that gives us the rough frame size. On the OEM-versus-aftermarket question: for the glass unit itself, we use OEM-spec Therma-Tru glass packs when the window is under 10 years old. For older units where the OEM glass has been discontinued, a quality aftermarket insulated glass unit from Mr-Glass or another of our stocked lines gets you the same low-E rating and argon fill at a better price than chasing obsolete stock.
Signs Your Therma-Tru Window Installation Is Failing
- Fogging between the panes. The insulated glass seal has failed, meaning the argon or krypton fill has escaped. This is the most common failure we see in Fresno, where 100-degree summers put constant expansion pressure on the seal.
- The sash won’t lock or latch. Usually a balance issue or a warped frame from years of direct sun on the west side of the house. If the lock mechanism itself is stripped, that’s a small parts fix.
- You feel air moving around the frame even when closed. The weatherstripping has compressed or the caulking between the frame and rough opening has dried out. In Fresno’s summer, this shows up as warm air along the interior casing.
- Condensation inside the room on cold mornings. This points to a failed low-E coating or a lost gas fill, so the inner pane temperature drops below dew point. It’s not just moisture, it’s a sign the glass unit is no longer doing its thermal job.
- Visible frame rot or soft spots on the sill. More common on older Classic-Craft units where water pooled at the sill corners. The frame may still be square, but the sill needs replacement before it spreads to the rough opening.
Replacement Cost & What’s Included
Most Therma-Tru window replacements in Fresno run $850 – $1,600 installed. The spread comes from three things: glass package, frame condition, and access. A standard double-hung with a basic low-E insulated glass unit on the ground floor lands near the low end. Add argon fill, a noise-reduction laminate, or a second-story install with ladder work, and the price climbs. Here’s what’s included in every quote we write:
| Line Item | What It Covers | Typical Range |
|---|---|---|
| Insulated glass unit | Therma-Tru OEM-spec or aftermarket equivalent, low-E coating, gas fill | $300 – $650 |
| Frame labor | Removal, leveling, reseating, new caulk and weatherstripping | $250 – $450 |
| Hardware | Locks, balances, sash clips, screens if needed | $50 – $150 |
| Access & disposal | Second-story work, haul-away of old unit | $50 – $200 |
We write the price down before any work starts, and that number does not move at the door. If it fails within 365 days, we come back at no charge. That’s the Done Right Promise, in writing, on every job.
DIY or Call Us?
There are two things an owner can safely check on their own. First, look at the caulk line around the exterior frame, if it’s cracked or peeling away from the stucco, that’s a sign water has been getting into the rough opening. Second, check the weep holes at the bottom of the frame to make sure they’re not plugged with dirt or paint, those exist to drain water that gets past the glass. Beyond that, Therma-Tru window replacement is not a weekend project. The glass unit is heavy, the balance springs are under tension, and a dropped sash will take out the frame corner and the drywall below it. We have the right lifting tools and replacement hardware on the truck. Call (559) 272-4716 and we’ll come measure, price it on paper, and get you on the schedule without the guesswork.
FAQs
A properly installed Therma-Tru window should hold its seal for 20 to 25 years in Central Valley conditions, though the glass unit itself may need replacing at the 15-year mark if it faces unshaded west or south exposure. Call (559) 272-4716 for an exact quote on your unit, estimates are free.
Yes, in most cases the insulated glass unit and hardware can be swapped without removing the existing frame, which keeps the cost lower than a full tear-out. We only recommend full replacement when the frame itself has rot or the opening has shifted out of square. Give us a call at (559) 272-4716 and we’ll tell you which route your window needs after one look at it.
Most single-unit replacements take two to four hours from arrival to cleanup, including removal of the old unit, resquaring the sash, installing the new glass, and re-caulking the exterior. Multi-unit jobs are scheduled over consecutive days, and we’ll tell you the timeline on the written estimate before you commit.
We carry the most common Therma-Tru insulated glass sizes and hardware on our service vehicles, along with replacement parts for PGT, CGI, and CWS units. If your unit needs a special-order size, we place it the day you approve the quote and install it as soon as it arrives in Fresno.
If you’re in Fresno, Clovis, or a surrounding town and you’ve got a Therma-Tru window that’s fogged, warped, or just not sealing anymore, call (559) 272-4716 to schedule your free estimate. We’ll measure, write the price down, and install it right. Measure twice, install once, write it down.
Written by Elliot Vance, Owner, Meridian Windows and Doors Fresno at Meridian Windows and Doors Fresno, serving Fresno and nearby areas.
Six Reasons Homeowners Choose Meridian Windows and Doors Fresno
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.