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CWS Construction in San Antonio, TX | Sawyer Remodel San Antonio
We provide independent CWS window and door service across San Antonio, from Alamo Ranch to King William. Most CWS issues we see here trace back to one thing: expansive clay soil shifting slabs and twisting rough openings, which makes frames bind, seals fail, and rollers jump track. We’re Sawyer Remodel San Antonio, led by Luca Romano, and we’ve been fixing CWS products in this soil for years. Call (432) 547-6806 for a free estimate.

We’re not a dealer installer. We don’t answer to a manufacturer’s sales quota. We answer to what your house is actually doing, and in San Antonio, that means foundation movement is part of every CWS service conversation. Whether you need a sash rebalanced, a seal repaired, or full impact window replacement before hurricane season, we tell you straight what’s worth fixing and what’s not.
Why San Antonio Residents Choose Us for CWS Service

Luca Romano learned the trade at Los Angeles Trade-Technical College, then spent decades swinging hammers across the Southwest before bringing his crew to San Antonio. He still walks every job himself before we call it done as your General Contractor in San Antonio. That matters when you’re dealing with CWS windows that have been fighting a shifting slab for twenty years.
Here’s what we bring to CWS work in San Antonio specifically:
- We know which failures are foundation-driven and which are just age. That changes the fix. A sticking CWS 4500 Series sash in Alamo Heights might need a balance replacement. The same symptom in Helotes might need rough opening stabilization first.
- We stock OEM CWS parts locally. Sash balances, rollers, weatherstripping, corner keys. We keep the common ones in our San Antonio trucks so we’re not ordering from a warehouse and making you wait a week.
- We quote a written price before work starts. Not an estimate that drifts. A number. You approve it, that’s the number on the invoice.
- We tell you when repair is throwing good money after bad. Some CWS frames on badly heaved slabs are beyond saving. We’ll say so instead of billing you for a repair that fails in eighteen months.
Every job runs under The Relay Visibility Guarantee: live arrival time tracking, photo updates before and after, and a written price in your hands before a single tool comes out. No phone tag. No ghosting. Our crews are background-checked and uniformed, and a live person answers our phone 24/7.
Styles & brands we work with







Common CWS Construction Problems We Solve in San Antonio
Here’s what CWS windows and doors actually do in this climate, and what we do about it.
- Sash misalignment and sticking in CWS 4500 Series windows. San Antonio’s expansive clay shrinks and swells with drought and rain cycles. When the soil under a slab-on-grade home heaves, the rough opening shifts, and the vinyl frame flexes. The sash binds. We realign, rebalance, and stabilize so the window operates without fighting the frame.
- Corner seal failures and fogging in CWS 8000 Series impact windows. In neighborhoods like Alamo Ranch and Helotes, repeated thermal cycling, blazing sun, then humid air, stresses the corner seals. Once drought-driven frame movement flexes the glass package, moisture gets between the panes. We replace failed insulated glass units and address the movement that caused the flex.
- CWS 9500 Series sliding doors jumping the track. Older central neighborhoods like King William and Monte Vista sit on original limestone foundations. Differential settlement twists door frames. Rollers wear unevenly, then the door climbs the track. We replace rollers, square the frame where possible, and adjust track height so the door rides clean.
- Micro-fractures in CWS 4500 welded corners after hailstorms. Hail pounds San Antonio roofs and windows during spring storms. A hairline crack at a welded corner isn’t cosmetic. Moisture gets into the frame channel, and the window gets stiff. We assess whether a corner key reinforcement works or full sash replacement is the honest call.
- Weatherstripping degradation from intense UV exposure. San Antonio sun cooks window seals. We replace degraded weatherstripping with OEM CWS material that actually fits the profile, not generic foam that gaps in six months.
CWS Service in San Antonio: What Local Conditions Mean for Your Equipment

San Antonio is the only major Texas city where the Edwards Aquifer recharge zone directly underlies much of the growing northwest side. What that means for CWS window and door work: exterior construction in those neighborhoods, including window and door flashing, must follow the city’s Aquifer Protection Ordinance for drainage and runoff. Water that hits a bad flashing job doesn’t just leak into your wall. It carries whatever it picks up into the recharge zone. We account for that on every CWS installation we do in Alamo Ranch, Helotes, and the surrounding northwest communities. Flashing details matter here in a way they don’t in, say, Schertz or Universal City. If you’re getting CWS windows installed on the recharge zone and your contractor can’t talk about the aquifer ordinance, that’s a red flag.
Luca grew up in East Los Angeles, learned the trade at LA Trade-Tech, and spent decades on real jobs before landing in San Antonio. The craft comes first. Everything else follows. That’s why he still does the final walkthrough on every job himself.
CWS Models & Products We Service in San Antonio
We work on the CWS lines most common in San Antonio homes:
- CWS 4500 Series Vinyl Windows: The workhorse of San Antonio subdivision homes. We handle sash balances, welded corner repairs, weatherstripping, and full replacements.
- CWS 8000 Series Impact Windows: Common in newer construction and storm-conscious neighborhoods. We address seal failures, hardware issues, and full impact-rated replacements that meet current code.
- CWS 9500 Series Sliding Glass Doors: Found everywhere from King William bungalows to Alamo Ranch two-stories. Roller replacement, track adjustment, frame realignment, and full door replacement.
- CWS 3000 Series Single-Hung Windows: The budget-conscious original equipment on many 1990s and 2000s homes. We service balances, latches, and glass packages.
We use OEM CWS parts when they’re available because the tolerances on these frames are tight. When a seal fails or hardware is beyond warranty, we quote repair with quality aftermarket components only if the frame is still square. If it’s not, we say so. Full replacement on a shifting San Antonio foundation is sometimes the cheaper long-term path, and we’d rather you spend your money once. Our CWS sales & service team can talk you through what’s in stock locally for fast turnaround.
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AfterCWS Service Pricing in San Antonio

What does CWS window or door work cost here? These ranges reflect what we see across San Antonio, from Timberwood Park to Kirby:
| Service | Typical Range in San Antonio |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Emergency & Storm Damage Repairs | Quoted after inspection |
What drives the number: how many units, whether we’re dealing with foundation-driven frame distortion, glass package type, and whether the existing rough opening can be salvaged or needs stabilization. Your free estimate includes a full inspection of the window or door, an honest assessment of whether repair or replacement makes sense, and a written line-item quote. No change orders later. Call (432) 547-6806 to schedule yours.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio 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 – CWS Construction in San Antonio
Why do CWS windows in northwest San Antonio like Alamo Ranch fail at the corners more than in other parts of the city?
The northwest side sits on some of the most expansive clay in Bexar County. Homes in Alamo Ranch and Helotes are notorious for what local contractors call “roller coaster” slabs. The clay heaves and drops with drought and rain cycles. CWS 8000 Series impact windows have welded corners engineered to tight tolerances, and repeated frame flex from slab movement stresses those welds until the seal fails. It’s not a CWS defect. It’s the soil. We address it by stabilizing the rough opening before we touch the window. If you’re seeing fogging or corner failure on the northwest side, call (432) 547-6806 for an inspection. Estimates are free.
Do you still install CWS impact windows if my home has existing foundation movement?
Yes, with an extra step. We won’t install a new CWS 8000 Series window into a rough opening that’s moving. We stabilize the opening first using shims and non-shrink grout, which we’ve done on dozens of San Antonio homes. Then we install with reinforced corner keys. Foundation movement doesn’t disqualify you from new windows. It just means the install has to account for it. Our San Antonio service area covers the whole metro.
Why does my CWS 9500 sliding glass door jump the track every summer in King William?
King William and Monte Vista homes often sit on original limestone foundations that have settled differentially over a century. When the frame twists, the rollers wear unevenly, and the door climbs the track. Summer heat worsens it because materials expand. We replace the rollers with OEM CWS parts, adjust the track height, and square the frame where possible. Call (432) 547-6806 for an exact quote. The estimate is free, and we’ll tell you if the door needs repair or replacement.
Can you repair a cracked CWS vinyl window corner instead of replacing the whole window?
Sometimes. A micro-fracture from hail impact can often be reinforced with a corner key and sealed, as long as the frame is still square and the glass package is intact. But if the crack runs deep into the frame channel or the window is already binding, a full sash replacement is the honest fix. We’ll show you the crack, explain what’s salvageable, and quote both options. No pressure either way.
Do CWS windows need any special flashing details on the Edwards Aquifer recharge zone?
Yes. The city’s Aquifer Protection Ordinance requires specific drainage and runoff management for exterior work in the recharge zone, which covers much of the northwest side including parts of Alamo Ranch and Helotes. Flashing has to direct water correctly, and not just for your wall’s sake. We follow those requirements on every CWS install in those neighborhoods. If you’re in the recharge zone and want a quote, call (432) 547-6806. Free estimates, no obligation.
Service Areas Near San Antonio
We service CWS windows and doors throughout the San Antonio metro. That includes CWS service in New Braunfels, CWS service in Alamo Heights, plus Universal City, Timberwood Park, and Kirby. If you’re within 45 minutes of downtown San Antonio, we can likely get to you.
Book Your CWS Service in San Antonio Today
Our crew replaced three CWS 4500 Series windows on a 1980s brick veneer home in Helotes last spring. The slab had heaved over two inches at the back corner. The original windows were so out of square that the sashes wouldn’t lock, and one vinyl corner weld had cracked from the stress. We stabilized the rough openings with shims and non-shrink grout, installed new CWS windows with reinforced corner keys, and added a root barrier along the exterior to slow future clay movement. That’s the kind of San Antonio Bathroom Remodeling and window work we do every week.
Call (432) 547-6806 to schedule your free CWS estimate. A live person answers, and we’ll get you a written price before any work starts.
Written by Luca Romano, Owner at Sawyer Remodel San Antonio, serving San Antonio since 2005.











