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 Round Rock
Window replacement in Round Rock usually costs between $550 and $1,150 per window for an insert and $900 to $2,100 per window for a full-frame job, depending on the unit and what we find when we open the wall. Most homes we work on in Round Rock were built between 1993 and 2012, which means thousands of them are hitting the end of their original windows’ service life at the same time. If you’re in 78664, 78665, or 78681 and your windows fog between the panes, stick when you try to open them, or let the August heat pour through the glass, call (888) 635-0804 and we’ll schedule a free estimate. Dale Kessler built TruePane Windows & Doors on a simple rule: if the pane is not true, the job is not done.
Why TruePane Windows & Doors Is Round Rock’s Preferred Window Replacement Company
We’ve been replacing windows in Round Rock long enough to know what the houses here actually need. The neighborhoods off Old Settlers Boulevard, the streets winding through Forest Creek, the older frames near Mays Street in Old Town – each part of Round Rock has its own housing stock, its own failure patterns, and its own fix. Our crews are local, background-checked, and uniformed. They show up when we say they will and they measure every opening twice before a single unit gets ordered.
What Round Rock homeowners tell us they value most is that we put both manufacturer warranty layers in writing before the truck leaves the driveway. That’s The Keystone Standard. No fine print that covers neither. No arguing over who pays when a seal fails. The workmanship is guaranteed for 90 days through our Done Right Promise. If it isn’t done right, we make it right. A live person answers our phone 24 hours a day, seven days a week – not a voicemail tree. When you call about Window Replacement, you talk to a person who can actually schedule your estimate.
Dale started this company in 2008 after years of watching out-of-true installs and voided warranties become someone else’s expensive problem. The standard has not moved since. We hire local people, train apprentices into journeymen, and sponsor county fairs and church roof funds because we plan to be in Round Rock thirty years from now answering the phone when you need us.
Our Window Replacement Services in Round Rock
Full Frame Replacement
When the frame itself is rotted, torqued out of square from clay soil movement, or simply undersized for a modern insulated unit, a full-frame replacement is the honest fix. In Round Rock’s slab-on-grade tract homes from the 1990s and 2000s, we regularly find jambs that have shifted enough that a new sash will bind within a year unless we re-square the opening first. That means pulling the trim, inspecting the rough opening, flashing it correctly, and setting the new frame plumb and level before the window goes in. We quote the full job on paper, including any re-squaring work, so the number you approve is the number on the final bill.

Insert Window Replacement
If your existing frames are still square and structurally sound, an insert replacement – also called a pocket replacement – leaves the original frame and trim in place and sets a new window inside it. This is often the right call for Round Rock homes where the slab has moved but the frame held. We measure every opening twice and order the new unit to fit the actual dimensions, not the nominal ones. That’s why our inserts don’t come back with half-inch gaps around the edges that get stuffed with caulk.

Storm Window Replacement
Older homes near Old Town Round Rock, especially the pre-1960s wood-frame houses around Mays Street and Sheppard Street, often still have original storm windows or early replacement units that were never fitted properly. The February 2021 hard freeze exposed exactly how much air moves through those gaps. We replace worn storm units with properly weather-stripped frames and modern glazing. For homes where the original window is worth preserving, storm replacement buys comfort without tearing into historic fabric.

Energy-Efficient Upgrade
A Round Rock summer puts sustained 100°F+ heat and intense UV on your glass for months. Builder-grade double-pane units from the Dell-era construction wave lose their argon gas and break down seals within 15 to 20 years – well short of what the manufacturer’s label promised. Upgrading to low-E, argon-filled units with fusion-welded frames cuts the heat bleed measurably. We quote manufacturer lines side by side on paper, including Andersen, Pella, Marvin, and Milgard, so you see exactly what you’re buying and what each line costs before you decide.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Round Rock
We’re an authorized installer for more than a dozen manufacturer lines, including, PGT, and CGI. That authorization matters in Round Rock because it means we can register both warranty layers directly with the manufacturer before we leave your driveway. If you have existing CWS or ES Windows units that need repair or replacement, we stock the common parts locally and can typically source the rest within days, not weeks. ECO Window Systems units are also something we service regularly in the 78665 and 78681 subdivisions. A square deal means we show you the line-item quote for each manufacturer option, and you pick what fits your budget and your house.
Common Window Replacement Problems We See in Round Rock Homes
- Fogged or hazy glass in 20-year-old double-panes. The original builder-grade insulated glass units in Round Rock’s Dell-era tract homes start losing their seal and argon gas around year 15. The sustained summer UV and 100°F+ heat accelerate it. You’ll see condensation between the panes that never completely clears, even on dry days.
- Sashes that bind, stick, or won’t stay up. Williamson County’s shrink-swell clay soils expand and contract with rain and drought, and that movement transfers into the window openings on slab-on-grade homes. What looks like a failed window is often a frame that’s been pulled out of square by the slab. We re-square the jamb before setting the new unit, or the problem comes back.
- Air leaks around old single-pane and early replacement units in Old Town. The pre-1960s wood-frame homes in 78664 were built for a different climate. The February 2021 freeze found every gap in those frames. We seal, re-flash, and set new glass so the next hard freeze doesn’t test the same weak points.
- Summer heat bleed through builder-grade glass. Cheap double-panes from the 1990s and early 2000s were not built for Round Rock’s August. Homeowners notice their upstairs bedrooms never cool below 80 degrees even with a new AC unit. The fix is low-E, argon-filled glass sized and set correctly, not another layer of window film.
Pricing for Window Replacement in Round Rock, TX
A typical insert window replacement in Round Rock runs $550 to $1,150 per window. Full-frame replacement runs $900 to $2,100 per opening, depending on what we find when we pull the trim – damaged sheathing, shifted rough openings, and outdated flashing all affect the final number. Energy-efficient low-E upgrades with argon typically add $75 to $150 per window over standard dual-pane. Historic window restoration in Old Town 78664 starts around $350 per unit for reglazing and weather-stripping but can run higher if the sash needs rebuilding. We give you a written, line-item quote before any work starts. No change orders, no surprise line items. Call (888) 635-0804 to schedule your free estimate.
We Also Serve Cities Near Round Rock
TruePane’s Round Rock crews also cover Pflugerville, Hutto, Cedar Park, and the State Board Of Insurance area. If you’re just outside the Round Rock city limits, give us a call and we’ll confirm coverage. The same Keystone Standard applies on every job, no matter which side of the county line you’re on.
Serving Round Rock, TX - Our Local Coverage Area
We’re based in the Round Rock 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 Round Rock
Round Rock’s Dell-fueled construction boom in the 1990s and 2000s produced thousands of brick-veneer slab homes in 78665 and 78681, almost all fitted with builder-grade double-pane vinyl windows designed for a 15-to-20-year lifespan. Those lifespans are expiring now, all at once, which is why entire Round Rock subdivisions are cycling through replacement. Add in the local climate – sustained 100°F+ summers and intense UV – and the seals on those units failed years earlier than in milder markets. Call (888) 635-0804 and we’ll tell you exactly what’s failing in your windows and what it costs to fix.
It depends on the condition of your frames. If the frame is still square and the wood or vinyl is intact, an insert replacement costs less and takes less time. If the slab has moved – common in 78681 because of Williamson County’s clay soils – and the frame is torqued, cracked, or rotted, you need a full-frame replacement so we can re-square the rough opening and flash it correctly. We inspect first and show you the difference on paper before you spend a dollar.
Williamson County’s shrink-swell clay means your slab moves seasonally, and that movement transfers into window and door frames. A door that won’t latch in August is usually a moving slab, not a bad install. When we quote a window replacement in Round Rock, we include any needed re-squaring of the jambs in the line-item estimate up front. Ignoring the soil movement is how you end up with new windows that bind within a year. Call (888) 635-0804 for a quote that accounts for what your foundation is actually doing.
When we pull the trim and remove an old window, the rough opening has to meet current code for flashing, water-resistive barrier, and air sealing before we set the new unit. In many Round Rock homes built in the 1990s, the original flashing tape is degraded or was never installed to modern standards. We may also need to add insulation in the rough opening gap if the home was built before code required it. These upgrades are written into our quote as allowances, and if we find something unexpected, we price it and get your written approval before we touch it. No surprises on the final bill. Call (888) 635-0804 to schedule an inspection.
Fog between the panes means the insulated glass unit’s seal has failed and the argon or krypton gas between the panes has leaked out. It happens faster in 78665 because Round Rock’s sustained summer heat and intense UV break down the butyl seal and edge spacer. The unit is allowing moisture into the airspace, which is why you see the haze. The glass does not need to crack for the window to be dead. Replacement is the only real fix. Call (888) 635-0804 and we’ll measure and quote the replacement unit.
Call TruePane Windows & Doors for Your Free Round Rock Estimate
We recently replaced a full set of original builder-grade double-hungs in a 1998 brick-veneer tract home off Old Settlers Boulevard in 78665. The homeowner called because the living-room sash wouldn’t stay up after years of torque from the clay soil shifting the slab. Our tech re-squared the jamb before setting the new fusion-welded frames with fresh flashing tape, then installed low-E argon-filled units that stopped the summer heat bleed for good.
That’s the kind of fix we do in Round Rock every week. If your windows are fogged, sticking, leaking, or just too hot to stand near in August, call (888) 635-0804 for a free estimate. We’ll measure twice, quote on paper, register both warranty layers in writing, and stand behind the work for 90 days – no paperwork fights, no arguing. Done right, the first time.
Written by Dale Kessler, Founder and Owner at TruePane Windows & Doors, serving Round Rock, TX and surrounding communities.



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