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Get your free estimateMr-Glass Windows & Doors in Schertz, TX | Lightwell Windows San Antonio
We’re an independent Mr-Glass service provider offering our Mr Glass services in Schertz, TX, and the surrounding communities. We repair and replace Mr-Glass single-hung, sliding, casement, and impact-rated windows across the city, from the original ranch homes near Cibolo Creek Drive to newer subdivisions off Borgfeld Road. What makes our Mr-Glass work different here is that we understand how Schertz’s specific conditions, brutal summer sun, caliche dust, and hail, actually age these units. Call (325) 420-4173 for a free estimate on any Mr-Glass window or door.
Because we’re not tied to Mr-Glass corporate, we recommend repair over replacement when that’s what serves your home. Keith Yamada, our owner, brought nearly two decades of window and door experience from the Southwest to San Antonio, and he still keeps a notebook on every job to track which windows face west. In Schertz, that afternoon sun is not something you guess about.
Why Schertz Residents Choose Us for Mr-Glass Service
We know Mr-Glass product lines the way a mechanic knows a specific engine. Our team has worked on the 100 Series single-hung, 200 Series sliding, 500 Series casement and awning, and the impact-rated MB70 horizontal roller. We know which parts fail, when they fail, and what the repair actually involves. That hands-on familiarity means we don’t guess at a diagnosis, and we don’t sell you a replacement when a $40 glide would solve the problem.
Keith grew up in Los Angeles and picked up the fundamentals of the trade at Los Angeles Trade-Technical College before spending years working windows and doors across the Southwest. He and our crew have served San Antonio for years, replacing frames on everything from bungalows near Alamo Heights to older homes along the King William Historic District. Keith is known for measuring twice, explaining once, and leaving a jobsite exactly the way he found it, minus the drafty old units.
We’re also part of the Cedarwell network, operating under the Cedarwell Care Promise since 2010. That means shoe covers and drop cloths on every visit, a photo of the clean-up before the crew leaves, and a written price before any work starts. Our technicians follow the C.A.R.E. values: Clean up like it’s our own home, Ask before we move or touch anything, Respect your time and quiet hours, and Explain the price before the work. A live person answers our phone 24/7, because when a new install has a problem, you shouldn’t have to navigate a voicemail maze.
Styles & brands we work with







Common Mr-Glass Windows & Doors Problems We Solve in Schertz
Here are the failure patterns we see most often on Mr-Glass units in Schertz. Each one is tied to something specific about our local conditions.
- Sun-baked nylon glides on 100 Series single-hung sashes. Schertz summers routinely hit 100°F, and that heat does a number on nylon glides. After five to seven years, they crack, and the sash starts to bind or drops off balance entirely. We replace them with OEM-equivalent parts that match the original tolerances, and the window operates smoothly again.
- Sliding window rollers seized from caliche dust and heat. The fine caliche dust that kicks up around Schertz works its way into Mr-Glass 200 Series slider tracks. Combined with 100°F heat, the rollers seize, and panels grind or lock up. We clean the track, replace the rollers, and often add a track cover to slow future dust buildup.
- Warped aluminum bottom tracks on west-facing MB70 horizontal rollers. Schertz homes with west-facing walls get hammered by afternoon sun. Aluminum frames on older Mr-Glass horizontal rollers warp along the bottom track, breaking the seal and letting conditioned air escape. We’ll tell you honestly whether a track replacement or a full-frame replacement makes more sense for your situation.
- Clogged weep holes on Mr-Glass picture windows. Oak pollen and dried mud from flash floods clog the weep holes, trapping water inside the frame and corroding the sill. We clear the holes and check the sill for damage before recommending further work.
- Failed double-pane seals causing fogged glass. Intense UV exposure and temperature swings in Schertz shorten seal life on insulated glass units. When the seal goes, the glass fogs and the insulating value drops. We replace the sash or the glass unit depending on the frame condition.
Mr-Glass Service in Schertz: What Local Conditions Mean for Your Equipment
Many Mr-Glass windows in Schertz’s original 1950s to 1970s ranch homes on streets like Cibolo Creek Drive still sit in wood-framed openings with no perimeter flashing. That was standard practice for the era, and it’s a detail most window companies never mention. It matters because when we do an insert window replacement in these older homes, the existing opening often has no flashing at all. So every Window Replacement in Schertz requires replacing the interior stool and exterior brickmold to keep hail-driven rain out.
Schertz’s long hot summers with frequent 100°F days and intense UV exposure mean windows and doors must withstand high heat and solar gain. Add in periodic severe thunderstorms and hail, and the case for impact-resistant options becomes clear. A west-facing Mr-Glass window in Schertz takes more weather abuse in one summer than a north-facing unit in a milder climate takes in five years. That’s not a guess; it’s what we see on job sites every season. For homeowners, the practical takeaway is simple: when you’re deciding between repairing and replacing a Mr-Glass unit, the direction it faces matters as much as its age.
Mr-Glass Models & Products We Service in Schertz
We service the Mr-Glass 100 Series single-hung, 200 Series sliding, 500 Series casement and awning, and the impact-rated MB70 horizontal roller. Our parts approach is OEM-equivalent aftermarket parts that match original tolerances. That means you get a repair that fits and functions like the original without paying manufacturer markup on every component. For fast turnaround in Schertz, we keep common glide sizes, roller assemblies, and balance springs stocked locally, so we’re not waiting on a parts shipment from out of state for most repairs.
When it comes to replacement, we carry eight manufacturer brands including Mr-Glass, PGT, CGI, CWS, ES Windows, ECO Window Systems, Therma-Tru, and ViewLux. The recommendation fits the home, not our preferred vendor. Lightwell Windows San Antonio remains an independent Mr-Glass service provider, not manufacturer-affiliated or authorized, which is exactly why we can tell you the truth about whether a repair is worth it or a replacement makes more sense.
See the difference
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AfterMr-Glass Service Pricing in Schertz
Most Mr-Glass window repairs in Schertz run between $125 and $495 depending on what’s wrong. Replacing cracked nylon glides on a single-hung sash typically falls on the lower end, while rebuilding a slider with new rollers, track work, and weatherstripping lands higher. Full insert window replacement on a Mr-Glass unit generally runs between $600 and $1,800 per opening, depending on size, glass package, and whether the existing frame is square and dry or needs additional work.
What drives the cost is the scope: a simple glide replacement is parts and an hour of labor; a full-frame Window Installation - Schertz means removing the old unit, addressing any flashing or rot in the opening, and installing the new window properly. Every estimate we give includes a written line-item breakdown before any work starts. You’ll never see a bigger number at the end than the one you agreed to at the start. Call (325) 420-4173 for an exact quote, estimates are free.
Serving Schertz, TX - Our Local Coverage Area
We’re based in the Schertz 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 – Mr-Glass Windows & Doors in Schertz
How much does it cost to replace a fogged Mr-Glass double-pane sash in Schertz? Replacing a fogged Mr-Glass double-pane sash in Schertz typically costs between $250 and $650 per sash, depending on the glass size and whether the frame needs any additional work. The fog means the seal between the panes has failed, and the insulating gas has escaped. In Schertz’s heat, a fogged window is also an energy leak that drives up your cooling bill. Call (325) 420-4173 for a firm quote, and we’ll come out to measure and price it in writing before any work begins.
My Mr-Glass 200 Series slider is hard to open in summer – is that a roller problem or heat warp? In Schertz, it’s usually both, but the roller problem comes first. Caliche dust works into the track, the 100°F heat accelerates roller wear, and the combination makes the panel grind or stick. If the frame itself is warped from years of west-facing sun, that’s a separate issue we’ll identify during the inspection. We can tell you within one visit which condition you’re dealing with and what the fix will cost.
Will impact-resistant Mr-Glass windows make a real difference during Schertz hail storms? Yes. Impact-rated Mr-Glass MB70 horizontal rollers and other impact-resistant units are designed and tested to withstand flying debris without the glass failing. Schertz sees periodic severe thunderstorms with hail, and an impact-rated window holds up where a standard single-pane or even double-pane unit may not. The difference is not just about protecting glass; it’s about keeping the building envelope intact during a storm so rain doesn’t get inside.
Do you recommend repairing or replacing a Mr-Glass window with a cracked vinyl corner weld in Schertz? A cracked corner weld usually means replacement, not repair. The corner weld is structural; once it cracks, the frame loses its integrity and can’t be glued back to full strength. In Schertz’s heat, a cracked weld will only worsen as the vinyl expands and contracts. We’ll give you an honest answer on-site, and if the rest of the frame is still square and dry, we can sometimes replace just the sash rather than the full unit.
Can you convert my existing Mr-Glass single-hung to a casement for better airflow in a Schertz ranch house? Yes, in some cases. Converting a single-hung to a casement requires a cast-iron opening, and we can do it if the rough opening size works with a casement unit. Casement windows seal tighter and can improve airflow when open, which helps in Schertz’s hot months. We’ll assess your specific opening and tell you what’s possible before you spend a dollar. Call (325) 420-4173 to schedule a free estimate.
Service Areas Near Schertz
In addition to Schertz, we provide Mr-Glass service throughout the surrounding area, including San Antonio, Selma, New Braunfels, Helotes, and Kirby. If you’re in a neighboring community and need Mr-Glass windows or doors serviced, call us at (325) 420-4173 and we’ll let you know if we can help. We also offer Mr-Glass service in San Antonio and Mr-Glass service in Selma. For a broader look at our service territory, see our Schertz service area page.
Book Your Mr-Glass Service in Schertz Today
A well-fitted window does its work quietly – you only notice it when the room finally feels right. If your Mr-Glass windows are binding, fogging, or leaking air in Schertz, call us at (325) 420-4173 to schedule your free estimate. We’ll give you a written price before any work starts, and we’ll leave your home the way we found it, minus the drafty old units.
Written by Keith Yamada, Owner at Lightwell Windows San Antonio, serving Schertz since 2010.
Six Reasons Homeowners Choose Lightwell Windows San Antonio
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.