Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
Before
After
Before
After
Before
AfterTherma-Tru Window Installation: The Wellington Owner’s Guide
Therma-Tru window installation in Wellington typically runs $85 to $220 per window for labor when a homeowner already has the window unit, and $340 to $780 per opening when the frame, flashing, and interior trim need to be reset. We stock the common Therma-Tru mounting clips, sash balances, and sealing systems on our trucks, so most Wellington jobs finish same-visit. The usual discovery is a window that’s started to bind in the frame after a storm season, or a sash that drops a half-inch the second you unlock it, and the owner realizes the install was never done square from the start.
Therma-Tru builds a solid window, but it’s a window that punishes sloppy installation. We see it in Wellington often: a builder-grade crew sets the unit level but not square, the frame torques, and within two or three years the sash earns a permanent lean against the weatherstripping. The product isn’t the problem. The set was the problem. That’s what we correct.
Which Therma-Tru Models This Applies To
We work on the full Therma-Tru residential window line, but the units we see most in Wellington are the casement and double-hung models from the 2000s and 2010s, along with a growing number of the newer sliding and picture windows in the Paddock Park and Olympia tracts. Therma-Tru’s window division doesn’t use a single universal mounting system, and that’s the first gotcha: the screw boss spacing on a 2008 double-hung frame is not the same as on a 2018 unit, even when both are nominally a 36-by-60. A handyman who drills new holes and calls it good will leave you with a frame that flexes and a warranty that’s already dead.
Here’s the compatibility reality. Therma-Tru sources window hardware and balances from a rotating set of suppliers, and the original parts are often discontinued within a decade. On the installation side, that means the replacement brackets and clips we use are not always Therma-Tru boxed parts; they’re frequently the same OEM supplier part under a different label, or a purpose-built aftermarket match with identical load ratings. We’ll tell you which is which before we put it in, because you deserve to know what you’re paying for. Dale Kessler’s rule on this is simple: if it’s not right on the paperwork, it won’t be right on the wall.
Signs Your Therma-Tru Window Installation Is Failing
- The sash leans when you unlock it. That lean means the frame was set out of square, usually because someone shimmed the hinge side but not the lock side. The weatherstripping takes the abuse, and eventually so does the lock mechanism.
- You can see daylight at one corner with the sash closed. That’s a frame that has shifted after install, common in Wellington’s sandy soil where a slab settles a quarter-inch over a decade. The unit needs to be pulled, re-shimmed, and re-sealed.
- Condensation between the panes that never clears. A failed seal is a manufacturer issue, but a seal that fails in year three on a Wellington window usually traces back to a frame that was racked during install. Pressure on the glass edge shortens the seal’s life.
- The window won’t stay open without a prop. Balances and springs fail. When they fail early, it’s often because the original installer set the window with the balances under tension from day one, a mistake that wears them out years ahead of schedule.
- Water staining on the drywall below the window. In Wellington, that staining shows up after a hard east wind drives rain against the west side of the house. The leak is almost never the window itself. It’s the flashing job behind the nailing fin.
Replacement Cost & What’s Included
For a Therma-Tru window that needs to be re-set and resealed in Wellington, plan on a range from $340 to $780 per opening. The variables are the window’s height off the ground, the condition of the existing rough opening, and whether the interior trim can be reused or needs replacement. A ground-floor casement with good trim sits at the low end. A second-story double-hung over a tile roof sits at the high end, because access matters.
| Job Type | Price Range | What’s Included |
|---|---|---|
| Re-set existing window, ground floor | $340 - $520 | Pull, re-shim, re-level, re-flash, re-seal, interior trim reset |
| Re-set existing window, upper floor | $480 - $780 | Same as above, plus lift and access time |
| Balance replacement (per set) | $45 - $110 | Parts and labor, any sash weight class |
| Mounting clip / bracket correction (per window) | $60 - $150 | New brackets, re-bedded in the frame, sash re-hung |
Every quote we write is a fixed number on paper, parts and labor separated, with both warranty layers registered in writing before the truck leaves the driveway. The Done Right Promise covers the workmanship. If the window sags, binds, or leaks within 90 days of our repair, we come back and fix it. No arguing, no fine print.
DIY or Call Us?
There’s a narrow band of work you can safely check on your own. Confirm the sash is fully closed when you think it’s closed. Check for visible gaps in the weatherstripping. Look for gaps in the caulk line on the exterior. These are diagnostic checks, not repairs, and they’ll help you describe the problem when you call.
What you should not do is pull a Therma-Tru sash out of its frame to investigate further. Double-hung and casement sashes carry tension. A balance spring that lets go while you’re mid-removal takes fingers. The frame set at the rough opening is also a job with real consequences: done wrong, you’ll get a leak you can’t see until the drywall stains, and by then the repair is triple the cost. We’ve been the ones called after that happens more times than we can count. We’d rather you call us at (561) 349-4826 first and let us tell you over the phone whether this is a look-today job or a scheduled one.
FAQs
A properly set Therma-Tru window in Wellington’s heat and humidity should give you 15 to 25 years before the frame, flashing, or seals need real attention. The window frame itself can outlast that, but Hurricane season storms and full sun on a west-facing wall, which we see constantly along the 441 corridor, age sealant and weatherstripping faster than any brochure number. Call (561) 349-4826 and we’ll inspect the windows and tell you honestly what shape they’re in.
Most failed installations we see in Wellington are repairable: a re-shim, a new balance set, fresh flashing, and a re-seal puts the window back in service without buying a new unit. The exception is a window that has racked so long that the glass edge has started to wear or the frame corners have cracked. We’ll tell you which situation you’re in after we look at it; we won’t sell you a replacement if a repair is the right call. Call (561) 349-4826 and we’ll come take a look.
A standard re-set on a ground-floor Therma-Tru window takes about two to three hours from arrival to clean-up. An upper-floor window adds an hour for access. Balance swaps and bracket corrections usually run under an hour. We schedule a fixed arrival window, our field crew wears uniforms and is background-checked, and the work area is clean when we leave. Call (561) 349-4826 to schedule a time that works for you.
We carry the common mounting clips, sash balances, and weatherstripping profiles for Therma-Tru windows on our Wellington service trucks, along with quality aftermarket equivalents with identical load ratings when Therma-Tru has discontinued the original part. For less common sizes we bring the part to the first visit, so you’re not waiting on a second appointment. We also stock parts for PGT, CWS, and CGI windows for Wellington homeowners with a mix of brands across the house. Call (561) 349-4826 and we’ll confirm the part before we roll out.
Call TruePane Windows & Doors for Your Therma-Tru Repair
We’ve been serving Wellington homeowners since 2008 through the Kessler family’s craft tradition, and Therma-Tru window installation repair is exactly the kind of job we’d rather do right the first time than undo from the last contractor’s attempt. We’ll quote you a fixed price, put it in writing, and stand behind the work for 90 days. If the window is not set true, the job is not done. A live person answers the phone 24 hours a day, 7 days a week. Call (561) 349-4826 for a free estimate.
Written by Dale Kessler, Owner, TruePane Windows & Doors at TruePane Windows & Doors, serving Wellington and nearby areas.
Six Reasons Homeowners Choose TruePane Windows & Doors
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.