Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Southlake
Window replacement in Southlake is not a one-size-fits-all job. The homes here, mostly 3,000 to 7,000-plus square feet of brick and stone built between roughly 1993 and 2015, carry wide two-story foyer assemblies, transoms, sidelights, and oversized picture windows that demand more than a standard pull-and-set. TruePane Windows & Doors handles full-frame and insert replacement across the 76092 zip, and we know the architectural review process in Timarron, Monticello, and the other HOA-governed communities well enough to file the paperwork before the opening is ever cut. If you are looking at failing seals, water staining at the head flashing, or windows that turn west-facing rooms into ovens by July, call (888) 635-0804 for a free estimate. We measure twice, quote on paper, and stand behind the install.
Why TruePane Windows & Doors Is Southlake’s Preferred Window Replacement Company
We have been doing this long enough to know that Southlake homeowners do not want a sales pitch. They want straight answers about grid patterns, frame color, SHGC ratings, and whether the HOA is going to kick the submittal back. Our team is led by Dale Kessler, a second-generation glazier who founded TruePane in 2008 on a rule that still hangs on the whiteboard: if the pane is not true, the job is not done. That is not marketing. It is the standard every background-checked, uniformed technician carries into a Southlake home.
Southlake customers tend to ask harder questions than most, and they should. A lot of these houses are wearing their original builder-grade aluminum-clad frames, and by year 15 or 20, the seal failures and water intrusion at wide-mulled openings are not subtle. We have replaced enough of them in Timarron alone to keep oversized flashing stock on the truck specifically for those two-story foyer banks. Scheduling is coordinated from our Dallas-Fort Worth office, but the crews working in Southlake live and work in the metro, not flown in from a franchise playbook. When you call, a live person answers, 24 hours a day, seven days a week. Not a voicemail tree. Not a callback form.
Our Window Replacement Services in Southlake
Full Frame Replacement
Full frame replacement in Southlake means the entire window comes out down to the rough opening, including the frame, trim, and flashing. That is the right call when original aluminum-clad frames in a Timarron or Monticello two-story foyer are showing water staining at the head flashing, or when the sill has rotted from years of North Texas storm exposure. We replace the opening correctly, flash it correctly, and set the new window so it drains the way it should. No caulk-and-pray work.

Insert Window Replacement
An insert, sometimes called a pocket replacement, fits a new window into the existing frame. For Southlake homes where the original frame is still square and dry, an insert is a faster and less invasive option that preserves interior trim. We measure every opening twice before ordering, because a quarter-inch error on a 6-foot-wide mulled picture window is not something you correct with shims and hope. Insert replacement works well on west-facing rear windows that need new spectrally selective Low-E glass without a full tear-out.

Storm Window Replacement
Southlake sits in North Texas’s severe-hail corridor. Storms producing golf-ball to baseball-sized hail have hit this city’s large window exposures hard enough that insurance-driven replacement is common. We work with homeowners and adjusters on storm window replacement, and we quote impact-rated lines from PGT and CGI side by side on paper so you see exactly what the policy covers and what it does not. When the next hailstorm rolls through, the glass should be the last thing you worry about.

Energy-Efficient Upgrade
Prolonged summer heat above 100°F and intense west-facing solar exposure make SHGC ratings a primary talking point in Southlake. Original builder glass without spectrally selective Low-E coating turns a great-room into a greenhouse by 4 p.m. We quote energy-efficient upgrades with the actual U-factor and SHGC numbers printed, not vague promises about “efficiency.” A homeowner in Southlake who replaces west-facing glass with the right coating will feel the difference in the first August electric bill.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Southlake
TruePane is an authorized installer for more than a dozen manufacturer lines, including, PGT, CGI, and ES Windows. For Southlake’s luxury custom market, we routinely quote Marvin Ultimate and Andersen A-Series because the architectural review boards in Timarron and similar communities expect those lines. We also service Ply Gem and CWS for homeowners who want a quality window at a more moderate price point. The point is choice on paper, side by side, with durations and warranty layers stated in writing before the truck leaves the driveway.
Common Window Replacement Problems We See in Southlake Homes
After years of working in Southlake, we know the failure patterns by heart. They are not the same as what you find in a 1980s tract neighborhood in a neighboring city.
- Seal failure on original two-story foyer assemblies. The wide-mulled window banks over the front door in Timarron and Monticello homes are notorious for fogged glass and failed seals by year 15. The original aluminum-clad frames simply were not built for the thermal cycling this climate delivers.
- Water intrusion at the head flashing. When a wide mulled assembly leaks, the water usually shows up as staining above the window, not below it. That indicates the original flashing detail was never corrected for a two-story exposure, and it will keep leaking until the frame is pulled and the flashing redone.
- HOA architectural review rejection. A homeowner orders a window with the wrong grid pattern or frame color, and the review board kicks it back, restarting the calendar and adding weeks. We file the submittal packet correctly the first time because we know what Timarron and other Southlake boards have approved before.
- Solar heat gain on west-facing rear windows. Original builder glass without spectrally selective Low-E causes comfort complaints and high cooling bills in Southlake’s large rear window exposures. The fix is not always more air conditioning; sometimes it is the right SHGC on the glass.
Pricing for Window Replacement in Southlake, TX
A typical full-frame window replacement in Southlake runs $900 to $2,400 per opening, depending on size, material, and whether the window is part of a wide-mulled two-story assembly that needs specialty flashing. Insert window replacement typically runs $600 to $1,500 per opening. Energy-efficient upgrades with spectrally selective Low-E and a solid SHGC rating add roughly 10 to 18 percent to the glass cost. Impact-rated PGT or CGI windows for storm hardening run $1,200 to $3,000 or more per opening. These are real ranges for this market, not national averages. Southlake’s larger custom openings and architectural-grade material expectations push the average job ticket higher than in Colleyville or Grapevine. The written quote you get from us is the price you pay. No change orders, no surprise line items, no second appointment left hanging. Call (888) 635-0804 for a free estimate.
We Also Serve Cities Near Southlake
If you live just outside Southlake, we also handle Window Replacement in Colleyville, Grapevine, Roanoke, and Flower Mound. The same crew, the same Done Right Promise, and the same habit of showing up when we say we will. Visit our Window Replacement in Southlake page if you want to see how we approach this specific market, or call (888) 635-0804 and we will talk you through it.
Serving Southlake, TX - Our Local Coverage Area
We’re based in the Southlake area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Window Replacement in Southlake
Architectural review in Southlake’s master-planned communities, especially Timarron, typically adds 2 to 6 weeks to the calendar. The board needs a submittal packet specifying grid pattern, frame color, material, and often a photo or sample of the proposed window. We file that packet before we order materials and before we cut any opening. The review time is not a delay we control, but it is a delay we plan for so the work does not sit half-finished waiting on a committee. Call (888) 635-0804 and we will walk you through the exact submittal requirements for your community.
Southlake does not mandate impact-rated glass across the board, but many homeowners choose it because the city sits in the severe-hail corridor and insurers frequently require or incentivize impact-rated PGT or CGI lines after a claim. If your policy specifies impact glazing elsewhere on the structure, replacing a broken window with non-impact glass can create a mismatch in the coverage. We quote both options side by side on paper so the decision is yours, with real numbers in front of you.
For west-facing rear windows in a Southlake home, target a SHGC of 0.25 or lower and a U-factor of 0.30 or lower. That combination, paired with spectrally selective Low-E coating, cuts solar heat gain during the 4 to 7 p.m. summer window when west exposures get pounded. A lower SHGC matters more than an incremental U-factor improvement on that elevation. We will run the numbers on your specific opening and orientation and put them on the quote.
Seal failure shows up as fogging or haze between the panes that you cannot wipe off, or a milky film that comes and goes with temperature and humidity changes. In Southlake’s two-story foyer assemblies, the fogging often appears at the top corners of wide mulled sections first. Water staining at the head flashing is a separate but related failure mode that usually means the original flashing detail has failed, not just the glass seal. If you are seeing either, call (888) 635-0804 and we will take a look.
If your original frames are square, dry, and free of rot, insert replacement is a sound option and costs less than full-frame. If you have water staining at the head flashing, sill rot, or frames that have moved out of square over 20 years of North Texas clay soil, full-frame replacement is the only way to actually fix the problem rather than hide it. We will tell you which one your house needs, and why, before we quote a dollar amount. Call (888) 635-0804 for a free estimate and a straight answer.
Call TruePane Windows & Doors for Window Replacement in Southlake
If you live in Southlake and your original builder windows are telling you it is time, call (888) 635-0804. We will answer. We will ask the right questions about your home, your HOA, and what is actually failing. Then we will schedule a time to measure, quote manufacturer lines side by side on paper, and register both warranty layers before the truck leaves the driveway. The Done Right Promise is on every job, in writing. Dale Kessler started this company on a simple rule: if the pane is not true, the job is not done. That is the standard we bring to every opening in Southlake, from the two-story foyers in Timarron to the west-facing great rooms off Byron Nelson Parkway.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Southlake since 2008.



Before
After
Before
After
Before
After