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Mr-Glass Construction in San Antonio, TX | Sawyer Remodel San Antonio
Mr-Glass window and door service in San Antonio comes down to one thing most out-of-town contractors miss: our expansive clay soils don’t just settle, they move, and they move again every dry year. Sawyer Remodel San Antonio is an independent Mr-Glass service provider, not factory-authorized, but we’ve rebuilt and replaced more Mr-Glass units in slab-on-grade San Antonio homes than most crews see in a decade. We work on the 4700, 5000, 6000, and 8000 series, and we fix the frame before we touch the glass. Call (432) 547-6806 for a free estimate, and we’ll bring the quote in writing.

Why San Antonio Residents Choose Us for Mr-Glass Service
Mr-Glass makes a solid unit. The problem in San Antonio isn’t usually the window itself, it’s what the ground does to the frame around it. Our crews know which Mr-Glass models fail in which neighborhoods, and that cuts the time and cost of every repair. Luca Romano owns Sawyer Remodel San Antonio, and after decades of framing and finish work on projects from Bathroom Remodeling - San Antonio to full home updates, he still walks every job himself before we hand it back to you. His rule is simple: if the rough opening isn’t square and the wall isn’t moving, the new unit will outlast the warranty. We stock genuine Mr-Glass parts for warranty work, and upgraded aftermarket hardware for out-of-warranty repairs where clay movement keeps chewing through factory components. Background-checked techs, a written price before any tool comes off the truck, and a 365-Day Done Right Promise on every job. That’s how we run service in San Antonio.
Styles & brands we work with







Common Mr-Glass Construction Problems We Solve in San Antonio
These are the failures we see every week across the city, and each one ties back to how San Antonio homes are built and how the weather here works.
- Frame racking on 4700 Series single-hungs: Expansive clay heave pushes slabs up unevenly, and the frame twists with it. Jamb screws pull loose, the sash starts binding on one side, and corner welds crack. We re-square the opening, shim the frame, and replace the welds with reinforced corner keys that survive the next dry spell.
- Seal failure in 8000 Series casements: West-facing units in San Antonio take direct afternoon sun at 100°F plus, year after year. The glass edge gets cooked, the desiccant inside the IGU saturates, and you get fog between the panes. No amount of cleaning fixes that. We replace the insulated glass unit and upgrade the glazing tape so the seal doesn’t die the same way twice.
- Deflection in 6000 Series sliding door tracks: When a slab settles unevenly, the aluminum track flexes, rollers bind, and the door drags or sticks on one side. Shimming the track helps for a while. If the slab is still moving, we’ll tell you honestly before we install a new door, because sliding doors need a dead-flat rough opening.
- Screen frame warpage on west and south exposures: In Alamo Ranch and Helotes, afternoon sun hits dark bronze aluminum screens and bows them like an old record left in the car. We replace warped frames with reinforced screen stock and tell you which side of the house is going to need it again first.
- Cracked corner welds as a foundation warning sign: A Mr-Glass window with a hairline crack at the frame corner is often the first visible symptom of slab movement. The window didn’t fail. The house moved. We’ll flag it, and we’ll hand you a foundation referral before we put the new unit in, because replacing glass over a moving slab is wasted money.
Mr-Glass Service in San Antonio: What Local Conditions Mean for Your Equipment

San Antonio’s north and west sides, Alamo Ranch, Helotes, and the surrounding suburban grid, are notorious among local foundation crews for what they call ‘roller coaster’ slabs. The limestone-rich clay under these neighborhoods swells after rain, shrinks hard during drought, and the slab doesn’t settle, it heaves into long, rolling undulations. A Mr-Glass window with a cracked corner weld is often the first place that heave shows up, not in the drywall, not in the tile, but right there at the frame corner where the aluminum gave way under racking stress. We are the only local Mr-Glass service that routinely ties window replacement to root-barrier and pier recommendations before the new units go in. That means when we replace a 4700 Series window on a heaving slab, we’re not just swapping glass. We’re checking the frame for square, noting which direction the wall moved, and telling you whether pier work on the foundation is the real fix. In San Antonio, a window job is sometimes a foundation diagnosis that happens to come with new glass.
Here’s a job that shows what we mean. In Alamo Ranch we pulled a 4700 Series single-hung from a 2006 brick veneer ranch where the slab had heaved two inches under the master bedroom. The frame was racked 3/16 inch, the lower sash binding on the left jamb, and the corner weld had a hairline crack. Our tech replaced the frame with an aftermarket reinforced corner key, re-squared the rough opening with shims, and reset the unit with a flexible perimeter seal, then handed the homeowner a foundation referral list because the clay was still moving. That’s a San Antonio Mr-Glass repair done the right way.
Mr-Glass Models & Products We Service in San Antonio
We work on the full residential Mr-Glass line that’s common in San Antonio homes, including 4700 Series single-hungs, 5000 Series picture windows, 6000 Series sliding patio doors, and 8000 Series casements. For units still under warranty or when a homeowner wants factory-original hardware, we use genuine Mr-Glass replacement parts. For most out-of-warranty San Antonio repairs, we source upgraded aftermarket balances, rollers, and glazing beads that handle clay-soil movement better than the originals did. If the frame is racked beyond 1/8 inch out of square or the insulated glass unit has failed, we recommend full replacement over patching, because two repairs cost more than one good replacement. This is what we mean when we say we know the difference between Mr-Glass sales & service done fast and done right.
See the difference
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AfterMr-Glass Service Pricing in San Antonio

Here’s what Mr-Glass construction and glass work costs in San Antonio, in real ranges rather than a phone call mystery.
| Service | San Antonio Price Range |
|---|---|
| Window Replacement (per opening, mid-range Mr-Glass) | $4,500 – $15,000 |
| Impact Window Installation (Mr-Glass rated) | $8,000 – $25,000 |
| Frameless Glass Shower Enclosure (custom) | $4,500 – $12,000 |
What drives the price in San Antonio is the same thing everywhere the clay moves: how square the rough opening is, whether the slab is still shifting, and how many units have failed seals versus failed frames. A free estimate from us means a written line-item quote before any work starts, so the number you approve is the number on the invoice. Call (432) 547-6806 for a free estimate, and we’ll come out, measure, and tell you what your Mr-Glass units actually need.
Serving San Antonio, TX - Our Local Coverage Area
We’re our General Contractor in San Antonio 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 Construction in San Antonio
Why do my Mr-Glass 4700 Series windows jam shut every summer in San Antonio?
Your windows are jamming because the expansive clay under your slab shrinks during dry summer heat, and the slab settles unevenly enough to rack the window frames. The frame twists, the sash binds, and the window jams. Re-aligning the frame and replacing the corner keys usually fixes it, but if the slab is still moving, the problem will come back. Call (432) 547-6806 for a free estimate and we’ll tell you what’s actually moving.
My Mr-Glass patio door drags on one side only, is the roller bad?
Maybe, but in San Antonio one-sided dragging usually means the track is deflecting because the slab settled under the door opening. The roller may be fine and the frame is just twisted. We check track level and frame square before we touch the rollers, because replacing rollers on a deflected track wastes your money. Call (432) 547-6806 for a free estimate and a straight answer.
Do you reuse my existing Mr-Glass frame when the glass seal fails?
If the frame is square and undamaged, we can replace the insulated glass unit and re-glaze it in place. If the frame is racked or corroded, reusing it just means the new glass fails the same way. We’ll tell you which one you have before we price the job, not after we open the wall.
Why does my Mr-Glass casement window fog up only on the west side of the house?
West-facing units in San Antonio take the worst afternoon heat, and that kills edge seals faster than any other exposure. The fog between the panes is the seal gone, not dirt, and the glass unit itself needs replacing. We upgrade the glazing on west-facing replacements so the next seal survives longer.
My foundation was just leveled, should I replace my Mr-Glass windows before or after the repair?
After. Never before. The foundation crew has to lift and shim the slab, and that movement will rack any window you installed first. Wait until the foundation work is done and the house settles, then have us come check the frames. Call (432) 547-6806 for a free estimate and we’ll schedule it around your foundation timeline.
Service Areas Near San Antonio
Sawyer Remodel San Antonio serves the whole metro, from Alamo Heights and New Braunfels up to Timberwood Park, Universal City, and Kirby. For neighbors outside the San Antonio loop, we also offer San Antonio service area coverage, along with Mr-Glass service in New Braunfels and Mr-Glass service in Alamo Heights.
Book Your Mr-Glass Service in San Antonio Today
If your Mr-Glass windows or doors are jammed, fogged, dragging, or cracked at the corners, call (432) 547-6806. We’ll schedule a free estimate, put the price in writing, and tell you whether the glass failed or the house moved. Same-day appointments are available when crews are already in your area.
Written by Luca Romano, Owner at Sawyer Remodel San Antonio, serving San Antonio since 2005.











