Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
PGT Construction in San Antonio, CA | Rowan Construction Group
We provide independent PGT service across San Antonio, from Stone Oak to the near westside, and also offer PGT repair in Austin. What makes our PGT work different here is the split geology: southside clay swells and northside limestone fights every anchor we set. That means we plan for soil movement before we quote a single window. We’re not factory-authorized and we say so plainly. For a written price on PGT impact windows, replacement, or roof repair, call (470) 298-9650.
Why San Antonio Residents Choose Us for PGT Service
Grant Rowan trained in construction technology at Los Angeles Trade-Technical College, where framing, concrete, and project estimating came before any paying job. That estimating discipline is why every quote we hand a San Antonio homeowner has a flat written price and a written scope before work begins. We arrived at PGT work through structural remodels and window installations on homes that had already moved, shifted, or leaked for years. When a PGT WinGuard frame binds or a fixed window leaks at the sill, we read the soil first, then the flashing, then the sash. The result is a repair that addresses what caused the failure, not just the visible symptom. Since 2007, we’ve delivered over 4,000 projects, each with a documented photo record when the crew left.
Common PGT Construction Problems We Solve in San Antonio

- Racked PGT WinGuard frames on post-tension slabs. San Antonio’s north and east neighborhoods carry thousands of 1970s through 1990s brick-veneer homes on post-tension slabs. The expansive Vertisol clay beneath them shrinks in drought and swells after rain, and the slab moves unevenly. We see WinGuard Vinyl sashes that bind at the meeting rail or fail to seat fully because the buck opening itself is no longer square.
- Water intrusion at PGT fixed windows in Stone Oak. Limestone-slab homes in Stone Oak sit on shallow bedrock that sheds surface water fast. When flash-flood rain sheets across a yard and hits a PGT fixed window with standard weeps, the water overwhelms the system and finds the interior. The fix is re-flashing, not caulk.
- Galvanic corrosion on aluminum WinGuard frames. South of the Escarpment, the soil is humid and alkaline. Steel fasteners in aluminum frames develop galvanic corrosion over time, which loosens the frame-to-buck connection and compromises the wind-load rating. We replace fasteners with compatible materials and re-anchor where needed.
- Edge clouding in PGT laminated glass doors. West-facing PGT doors in San Antonio take relentless afternoon sun plus weeks of 100°F heat. The laminated interlayer at the glass edge breaks down under prolonged UV, leaving a milky fog around the perimeter. This is a glass unit replacement, not a cleaning issue.
- Roof repair around PGT skylights and flashing. Intense heat cycles and flash-flood rain stress roof penetrations. We repair roof flashing and membrane around PGT skylights before water finds the window frame below.
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AfterPGT Service in San Antonio: What Local Conditions Mean for Your Equipment
Only in San Antonio do we have to core anchor PGT window bucks into solid Edwards limestone 2 to 3 feet below grade on the north side while simultaneously designing for 6-plus inches of vertical clay swell on the south side. No other Texas city presents that dichotomy. Out-of-town crews routinely underbid trenching on the north side because they quote standard soil, then hit that continuous limestone shelf and turn a one-day utility run into a three-day rock-cutting job. The same mistake happens with window installations: quote assumes standard anchor points, the drill hits limestone at 2 feet, and the crew either stops or cheats the embedment depth. We core and set anchors in the limestone properly the first time. On the south and east sides, we plan for slab movement. That means leveling buck openings before a PGT frame goes in, because a square window in a racked opening will bind within a season. The two sides of town are not the same job.
PGT Models & Products We Service in San Antonio

We service PGT WinGuard Vinyl and WinGuard Aluminum impact lines, PGT PremierVue multi-slide and hinged door systems, and PGT SpectraGuard. For PGT work, we install only genuine PGT weatherstripping, balancers, and hinges where structural integrity or wind-load ratings are in play. Never aftermarket seals or corners. We are also direct with San Antonio homeowners when replacement beats repair: a PGT window over 20 years old with frame distortion from slab movement is often better replaced as a full opening than fought with shims and hope. We stock common PGT components for fast turnaround on San Antonio jobs, and anything we do not carry we order with a written lead time on the quote.
PGT Service Pricing in San Antonio
| Service | Price Range |
|---|---|
| Impact Window Installation | $8,000 - $25,000 |
| Window Replacement | $4,500 - $15,000 |
| Roof Repair | $400 - $1,800 |
What drives cost in San Antonio is soil work and anchoring, not just glass. A northside limestone anchor job costs more in labor than a southside clay job because coring bedrock takes time. A free estimate includes a site walk, an assessment of your slab or foundation condition at the openings, and a written line-item price before any work starts. That is Clause 1 of the Haven Standard. Call (470) 298-9650 for a written quote on your PGT project.
Serving San Antonio, TX - Our Local Coverage Area

We’re based in the San Antonio area and know this community well, and we also handle Fence Installation - San Antonio projects. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - PGT Construction in San Antonio
Only if the slab is stable or has been stabilized. WinGuard frames are engineered square; the problem in San Antonio is the clay under the slab moves, and that movement racks the buck opening. We check for differential movement before installation and level openings that need it. If your slab has ongoing movement, we tell you that before selling a window. Call (470) 298-9650 for an assessment.
We do not recommend it. Coring anchors into Edwards limestone requires a hammer drill with proper bits, correct embedment depth, and epoxy that bonds to limestone. A shallow anchor in limestone will not hold a wind-load-rated PGT frame through a storm. This is not a drill-and-screw job. If you want a second opinion on a written estimate from another contractor, bring it to us and we will review it line by line at no charge.
Aluminum WinGuard frames hold up well on their own, but steel fasteners in alkaline soil create galvanic corrosion at the connection points. South of the Escarpment, we see this within 15 to 20 years. The correct fix is replacing fasteners with compatible materials and re-anchoring the frame, not caulking over corrosion.
For westside bungalows on pier-and-beam foundations, PGT WinGuard Vinyl is the most common choice because it is lighter than aluminum and performs well in wood-framed openings that may flex slightly. The key is that the existing wood framing must be checked for rot and level before installation. PGT PremierVue works in these homes too, particularly for patio and entry doors where a wider sightline matters.
The laminated interlayer in PGT impact glass breaks down under prolonged UV exposure and sustained heat, and San Antonio’s west-facing elevations get both. Edge clouding is a sign the interlayer is failing, which compromises the impact rating over time. The fix is glass unit replacement, and the cost depends on the door size and model. Call (470) 298-9650 for a written quote on the replacement unit.
Service Areas Near San Antonio

We serve San Antonio and the surrounding area, including work further out where our documented pricing and written-scope approach matters. If you’re comparing contractors in San Diego or Dallas, the same discipline applies: written price before work starts, every time. Our full San Antonio service area coverage is available for review, and for the full picture of what we do with the brand, see PGT sales & service.
Book Your PGT Service in San Antonio Today
Measure twice, say it once, show your work. That is how we run PGT jobs in San Antonio, and it is why the price is in writing before anyone picks up a tool. Call (470) 298-9650 to schedule your free estimate, and we will walk the openings, read the soil or limestone, and hand you a number you can compare.
Written by Grant Rowan, Owner at Rowan Construction Group, serving San Antonio since 2007.







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