







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why San Antonio Homeowners Choose ES Windows Construction
We provide independent ES Windows construction, repair, and replacement service across San Antonio, from Alamo Heights to Alamo Ranch. Our crews work on these windows every week, so we know the aluminum frames, thermal breaks, and roller systems inside and out. We’re not an authorized ES Windows dealer or factory service center, and we won’t pretend to be. What we are is a San Antonio remodeling company that has been tearing out, installing, and servicing ES Windows products for years, with the written pricing and straight answers homeowners actually want. Call (432) 547-6806 for a free estimate.

San Antonio’s climate does specific things to ES Windows. The humidity in spring and fall drives corrosion on aluminum frames. The west-facing sun bakes glazing gaskets until they shrink. And the expansive clay soils under half the city keep houses moving enough to rack window frames out of square. A generic brand page won’t tell you any of that. We will, because we’re out here seeing it pile up on a weekly basis.
Why Trust Sawyer Remodel San Antonio for Your ES Windows Construction?

Luca Romano leads our San Antonio operation. He learned the trade at Los Angeles Trade-Technical College and spent decades running jobs across the Southwest before putting down roots here. When an ES Windows T-Series unit needs a thermal break assessment or an E-Series slider has a roller that’s finally given up, Luca’s the one walking the job and calling the shots. He still does a final walkthrough on every project we close out, because handing over work that’s actually done right is the part he never got tired of.
Our technicians have spent enough hours inside ES Windows frames to know what fails, why it fails, and whether it’s worth fixing. We use genuine ES Windows replacement parts when the manufacturer still makes them and they make financial sense. When hardware is discontinued or backordered, we source aftermarket parts that match the original profile and fit properly. We never throw mystery parts into your window because they were cheap. And everything we do is backed by our 365-Day Done Right Promise: if it’s not done right, we make it right, in writing, on every job. That’s the whole point of hiring us instead of a trunk-slammer.
Styles & brands we work with







Common ES Windows Construction Problems We Fix in San Antonio
- Aluminum frame pitting and corrosion on E-Series units. Homes with sprinkler systems aimed at the windows get the worst of it. San Antonio’s spring humidity and fall dampness sit in the bottom corners of the frame, and the aluminum starts pitting. We clean the affected area, treat the corrosion, and reseal the frame. If the pitting has eaten through the structural channel, we’ll tell you honestly that a replacement makes more sense than a patch job.
- Thermal break failure on older T-Series Thermal units. The T-Series uses a polymer thermal break to separate the interior and exterior aluminum. After 15 to 20 years of San Antonio heat cycling, that break can degrade. You’ll see condensation on the inside of the frame, or feel a cold strip along the metal in winter. A failed thermal break usually means the window’s insulating performance is permanently compromised. We inspect it and give you the straight answer: repair if the break is intact and the seal is the culprit, replace if the break itself is gone.
- Roller and track wear on large E-Series sliding sashes. Heavy aluminum sliders ride on small rollers that eventually flatten or seize. You’ll feel the sash stick mid-travel, or it’ll grind when you open it. Alamo Ranch and Helotes homes with big patio sliders see this constantly. We replace the rollers, clean and realign the track, and the sash glides like new. It’s a half-day job most of the time.
- Glazing gasket shrinkage from west-facing sun exposure. West-facing ES Windows take the full afternoon Texas sun, and after enough years the rubber gaskets shrink and pull back from the corners. That leaves a gap where air and water get through. We pull the old gasket, install a new profile that matches the original, and re-bed the glass. It’s a straightforward fix that stops air leaks and keeps water where it belongs.
- Slab movement racking window frames out of square. San Antonio’s expansive clay soils move. When the slab under a house shifts, window openings shift with it. An ES Windows frame that was square at install can slowly rack until the sash binds or the corner joints crack. We see this most in 1970s-to-2000s brick veneer homes on slab foundations across the northwest side. We reset or replace the unit, and if the underlying slab movement is significant, we’ll connect you with a foundation contractor before the new window goes in. Installing a new window into a moving opening just repeats the cycle.
ES Windows Parts & Our Repair-vs-Replace Approach

We use genuine ES Windows parts when they’re available and make sense. Rollers, track sets, locking hardware, and weatherstripping from the original manufacturer are the first choice. When a part is discontinued, which happens with older E-Series and early T-Series units, we source premium aftermarket equivalents that match the original profile and fit the channel without modification. That’s the difference between a window that still works and one that makes noise every time you touch it.
The repair-versus-replace decision comes down to the frame and the glass. If the frame is sound, the glass is intact, and the hardware is the only problem, we repair. Most roller failures, gasket replacements, and lock repairs are under $500 in parts and labor. If the sash is racked, the glass is fogged from a failed seal on an old thermal unit, or the aluminum has corroded through, replacement is the honest call. We’ll show you the numbers and let you decide. Call (432) 547-6806 to schedule a diagnostic visit and get a written price.
Our ES Windows Service Process – Step by Step
- 1
Diagnosis. We inspect the window in place, checking the frame, sash, hardware, glazing, and the opening itself. On E-Series sliders, we look for roller wear and track deformation. On T-Series units, we check the thermal break and the glass seal. You get a written diagnosis and a fixed price before any work starts.
- 2
Repair or install. Our crew handles the removal, frame prep, install, and trim work. For replacements, we reset the opening, shim it square, flash it properly, and install the new ES Windows unit to manufacturer span and drainage specs. For repairs, we use the correct OEM or profile-matched aftermarket parts.
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Testing. We cycle every operable sash, check the locks, run a water test on sealed joints, and verify the thermal performance on replacement units. If anything doesn’t move like it should, it gets adjusted before we pack up.
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Warranty and walkthrough. Luca walks the job personally. You get our written 365-Day Done Right Promise on every repair and installation. If something fails within a year, we come back and make it right. No argument, no fine print runaround.
See the difference
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AfterES Windows Products We Service & Install in San Antonio
We work across the full ES Windows lineup: the E-Series Aluminum, T-Series Thermal, S-Series Commercial, and Custom Architectural lines. Most of our local service work is on E-Series sliders and fixed units in mid-century and 80s-90s San Antonio homes, plus T-Series thermals in higher-end custom builds. We stock common rollers, track sets, gaskets, and locking hardware for faster turnaround, and we order full replacement units from our local supply channels when a swap is the right move.
We Also Service These Brands
Sawyer Remodel San Antonio is a full-scope General Contractor services company, not a single-brand shop. Alongside ES Windows, we install and work with KraftMaid cabinetry, Cambria and Silestone countertops, and Kohler fixtures. That matters when a window repair turns into a bigger conversation about the room around it. We can handle that too.
FAQs – ES Windows Construction Service in San Antonio

Can you repair a fogged ES Windows T-Series thermal unit without replacing the whole sash? Yes, if the frame and thermal break are still sound. We can replace the insulated glass unit (IGU) with a new sealed assembly that matches the T-Series profile, restoring clear glass and thermal performance without pulling the entire sash. Call (432) 547-6806 for a free estimate on IGU replacement.
Do you handle ES Windows E-Series sliding screen door roller replacement on original San Antonio homes? Yes, we do them regularly. E-Series screen doors on homes from the 1970s through the 1990s share a roller design that wears out from decades of San Antonio grit and heat. We replace the rollers, clean the track, and get the door gliding again. It’s a quick job we quote in writing before we start.
Can you convert a fixed ES Windows architectural picture window into an operable awning without damaging the opening? In most cases, yes. We remove the fixed sash, reframe the opening for the operable unit, and install an ES Windows Custom Architectural awning window sized to the existing rough opening. The surrounding stucco, trim, and drywall stay intact. It’s more involved than a replacement, but we do it cleanly. Call (432) 547-6806 to discuss your specific wall.
Why is my ES Windows aluminum frame pitting near the bottom corners – and is it repairable? That pitting is caused by water sitting against the aluminum, usually from sprinkler overspray or rain splash in San Antonio’s humid spring and fall seasons. If the pitting is surface-level, we clean, treat, and reseal it. If it has eaten through the frame channel, the unit should be replaced. We’ll tell you which one you’re dealing with during the diagnostic visit.
Do you install ES Windows in load-bearing wall openings when adding a room or converting a garage? Yes. We handle structural openings as part of our home addition and garage conversion work. That means proper headers, temporary support, and engineered sizing for the new ES Windows units. It’s part of permitted work we pull for the project, with inspections passed before we close it out. Call (432) 547-6806 to schedule a structural consult.
How much does ES Windows construction cost in San Antonio? ES Windows work in San Antonio spans a wide range. A routine roller replacement or gasket job can run a few hundred dollars. Full window replacement typically lands between $4,500 and $15,000. Impact-rated ES Windows installs run $8,000 to $25,000. And if the window work is part of a home addition, that project lands between $45,000 and $130,000. Every price is written and fixed before work starts. Call (432) 547-6806 for a line-item quote.
Book Your ES Windows Service in San Antonio, TX
If you’ve got an ES Windows unit that’s sticking, leaking, fogged, or corroded in New Braunfels or San Antonio, call us at (432) 547-6806. You’ll get a live person, a diagnostic visit, and a written price before any work starts. That’s how we run every job in San Antonio.
Written by Luca Romano, Owner at Sawyer Remodel San Antonio, serving San Antonio since 2005.


