New windows and doors improve comfort, cut energy bills and add long-term value to your home. Meridian Windows and Doors Jacksonville 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 Jacksonville Owner’s Guide
Therma-Tru window replacement in Jacksonville typically costs $480 – $1,160 installed per window, depending on glass package, frame material, and whether the sash or the full unit needs swapping. We stock Therma-Tru compatible sashes, sealed glass units, and hardware on our trucks and can usually complete a single-window replacement the same visit we diagnose it. Most Jacksonville homeowners notice something’s off first: a sash that won’t stay up, condensation fog between the panes, or a lock that no longer catches. The glass seal fails long before the frame does, and Florida humidity speeds that timeline up considerably.
Which Therma-Tru Models This Applies To
Therma-Tru builds entry doors primarily, but their window line runs through the SlimLine and Classic-Craft series for door sidelites and transoms, plus vinyl and fiberglass window sashes spec’d for Florida’s wind-load codes. The compatibility gotcha most owners run into: Therma-Tru sidelite and transom glass is ordered by the door’s specific model code, not by rough opening. That code is printed on a label on the door edge or hinge-side jamb. If the label’s gone, we measure the glass size to the sixteenth of an inch and match the frame profile. For fiberglass window sashes, we compare the balance shoe and pivot bar style, because Therma-Tru changed that hardware across model years. OEM glass costs more and carries the brand stamp, but quality aftermarket equivalents from our stocked lines often match spec for spec at 25 – 35% less. We’ll quote both and let you decide. Meridian Windows and Doors Jacksonville is an independent service provider, not affiliated with Therma-Tru. We also handle replacement parts for PGT, CGI, and CWS systems around Jacksonville.
Signs Your Therma-Tru Window Replacement Is Failing
- Fog or haze between the panes. The insulated glass unit’s seal has failed, and Jacksonville’s humidity has worked its way inside the air gap. The glass itself isn’t broken; the sealed unit is done.
- Sash drops or won’t stay open. The balance system, a coil or block-and-tackle spring inside the jamb, has lost tension or snapped a shoe. On Therma-Tru fiberglass sashes, we replace the balance set rather than patch a single side.
- Lock won’t latch or the keeper plate is stripped. Years of slight frame settling in Jacksonville’s sandy soil means the strike plate and sash have drifted out of alignment. Sometimes it’s an adjustment; often the hardware’s worn past that.
- Visible rot or soft spots at the sill or lower rail. On wood-interior Therma-Tru sashes near salt air, we see moisture wicking at the sill corners. By the time the finish looks bad, the substrate usually needs a full sash replacement.
- Drafts you can feel on a humid day, not just a cold one. Weatherstripping compresses and frame gaskets dry out. In Florida, a draft matters in August too, because it’s pulling conditioned air out.
Replacement Cost & What’s Included
For Jacksonville homeowners, a single Therma-Tru sash replacement runs $480 – $760 installed. A full window unit replacement, frame and all, lands between $780 and $1,160. Glass-only sealed unit swaps for sidelites and transoms fall in the $320 – $540 range. The spread comes down to three things: whether it’s fiberglass or vinyl, whether the glass is standard clear or low-E with argon, and whether the existing frame is square enough to accept a new sash without shimming. Every quote we write includes the part, all labor, disposal of the old unit, and caulking and flashing touched up to finish. The price goes on paper before any work starts, and it does not change at the door. The installation carries our 365-Day Done Right Promise in writing: if it fails within the first year, we return at no charge.
DIY or Call Us?
You can safely check the label, take photos of the failing part, and measure the visible glass to the nearest eighth of an inch. That helps the phone conversation go faster. What usually goes wrong on DIY removals is the flange and interior trim: Therma-Tru fiberglass sashes seat into a channel with specific clearance, and prying the wrong way scores the frame beyond repair. The balance springs inside Therma-Tru window jambs are under constant tension. A hand-slip while releasing one can send steel parts into the glass or your fingers. We’ve repaired those mistakes for Jacksonville homeowners more than once, and the second job always costs more than the first call would have. If you want the part number confirmed and the job done under a written warranty, call (904) 513-9670. Measure twice, quote once, everything after that is just showing up.
FAQs
Expect 10 – 15 years from the sealed glass unit and 20 – 25 from a well-maintained frame in Jacksonville’s heat and humidity. Coastal homes a few blocks from salt air tend toward the shorter end of that range.
Hardware like balances and locks we often repair on the spot. A failed glass seal cannot be repaired, only replaced, because the insulating gas has already escaped and the panes are permanently compromised.
A sash or glass-unit swap typically takes 60 – 90 minutes on site. A full-frame replacement runs three to four hours. We’ll tell you the honest timeline when we quote it; if it takes two days, we say two days.
We stock common sash balances, locking hardware, weatherstripping, and standard glass sizes on our trucks. Custom glass packages or specific sidelite configurations usually take five to seven business days to arrive. Call (904) 513-9670 with your model code and we’ll check the shelf before we schedule.
Written by Elliot Vance, Owner, Meridian Windows and Doors Jacksonville at Meridian Windows and Doors Jacksonville, serving Jacksonville and nearby areas.
Six Reasons Homeowners Choose Meridian Windows and Doors Jacksonville
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.