Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterCGI Construction in San Antonio, CA | Rowan Construction Group
CGI construction service in San Antonio means working with the split geology that defines this city: deep Vertisol clay on the south and east, solid Edwards limestone two to four feet down on the north and northwest. We’re an independent CGI service provider, not manufacturer-affiliated or authorized, and we’ve rebuilt and retrofitted CGI exterior profiles across both soil types for over a decade. That means we know which failure modes show up where, and we detail the repair so it doesn’t come back. Call (470) 298-9650 for a free estimate on any CGI stone, siding, or trim work in San Antonio, or ask about Fence Installation in San Antonio.
Why San Antonio Residents Choose Us for CGI Service
Grant Rowan founded Rowan Construction Group in 2007, and the crews he’s built since then work the way he learned at Los Angeles Trade-Technical College: framing, concrete, and estimating before anything gets touched. That background matters when you’re dealing with CGI stone veneer on a San Antonio slab that’s been cycling through drought shrink and rain swell for forty years. We know the difference between a cosmetic crack and a structural one, and we’ll tell you which you’re looking at before we quote anything.
Every San Antonio job starts with a written price, a written scope, and a documented photo record of what we found. Under Clause 1 of our Haven Standard, the number is on the page before anyone picks up a tool. We stock manufacturer-spec lath, weep screeds, and drainage mats locally so we’re not waiting on a distributor in Houston when your east elevation is open to the weather.
Common CGI Construction Problems We Solve in San Antonio
- Step-cracking along panel joints on southside slabs. San Antonio’s south and east neighborhoods sit on Vertisol clay that heaves when it rains and shrinks when it doesn’t. CGI mortar-bed stone veneer on post-tension slabs develops step-cracking along panel joints as the slab moves, even when the slab itself hasn’t failed. We open the cracked sections, document the movement, and reinstall with compressive joints every four feet so future movement doesn’t telegraph through the new veneer.
- Efflorescence and spalling on northside limestone ledge. On the north side, CGI rigid foam-backed stone profiles installed over limestone with inadequate weep screeds trap rising moisture after flash-flood events saturate the backside. You’ll see white mineral deposits and flaking stone faces within a few years. We pull the affected sections, install a proper drainage plane, and re-set the stone with a vented weep detail.
- Delamination at addition transition lines. CGI metal lath and scratch coats on 1970s-90s brick-veneer additions often delaminate where new piers meet older expansive-clay slabs. The two foundations move differently, and the junction opens a gap that lets water track down the sheathing. We rebuild that transition with a flexible tie-in and inspect what’s behind the lath before it’s hidden again.
- Flash-set hairline cracks on west elevations. San Antonio summers run over 100°F for weeks. When CGI cementitious stone mix is applied to sun-exposed west walls during a poorly timed pour, it flash-sets and leaves hairline surface cracks. Those channels later direct rain into the substrate. We repair the cracked profile and recommend early-morning pours with aggressive curing compound application for any rework.
- Stormwater compliance issues in the Recharge Zone. A large portion of north and northwest San Antonio sits inside the Edwards Aquifer Recharge Zone, where SAWS enforces impervious-cover caps and drainage requirements that don’t apply elsewhere in the region. If your CGI stone project adds square footage or changes site drainage, out-of-town crews routinely miss the stormwater requirements. We pull the permits and design the drainage so it passes inspection the first time.
BeforeAfterCGI Service in San Antonio: What Local Conditions Mean for Your Equipment
Here’s the checkable fact that shapes CGI work in San Antonio more than any other single factor: the city straddles the Balcones Escarpment. South and east of that line, you’re on deep Vertisol clay that destroys post-tension slabs during drought cycles. North and northwest of it - Stone Oak, Helotes, the northwest IH-10 corridor - you hit solid Edwards limestone two to four feet below grade. That split geology means the same CGI stone profile behaves completely differently depending on which side of town you’re building on. On a 1980s brick-veneer and CGI Stone veneer house off Huebner Road near Shavano Park, we were called after a summer drought followed by a 6-inch rain event opened a horizontal crack in the east elevation stone. We pulled the cracked CGI estate stone veneer, found the post-tension slab had moved 3/8 inch, and before reinstalling we added a flexible drainage mat and trimmed the stone with a compressive joint every four feet so future slab movement wouldn’t telegraph through the new veneer. That’s the difference between a patch job and a repair that stays repaired in San Antonio.
CGI Models & Products We Service in San Antonio
We work on the full CGI lineup, including Sentinel Stone, Estate Clad, StackStone RS, and ProBrick. For structural components - lath, weep screeds, drainage mats - we use only manufacturer-spec equivalents or better, like Benjamin Obdyke or Mortairvent products, because the original detail is what protects the system. For cosmetic stone and trim, we often recommend a color-matched manufactured stone from a local supplier like Coronado or Canyon Stone when the exact CGI profile has been discontinued. And we’ll tell you straight when a deteriorated section is too far gone to patch and should be replaced instead. If you’re looking for broader CGI sales & service, we cover the full scope of residential construction trades.
CGI Service Pricing in San Antonio
CGI stone and siding work in San Antonio is priced by the condition we find, not by a generic square-foot multiplier. Here’s what you can expect for the common scopes that involve CGI profiles:
| Service | Typical San Antonio Range |
|---|---|
| Full Kitchen Remodeling (with CGI stone or siding integration) | $14,000-$45,000 |
| Roof Replacement | $8,000-$20,000 |
| Specialty Roofing (CGI-compatible trim and detail) | $15,000-$40,000 |
Your free estimate includes a written price, a written scope, and a photo record of what we found. No number changes without a signed change order. Call (470) 298-9650 for an exact quote.
Serving San Antonio, TX - Our Local Coverage Area
We’re based in the San Antonio area and know this community well, and we also offer CGI repair in Austin. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - CGI Construction in San Antonio
Will CGI stone veneer on my Stone Oak house still perform if the Edwards limestone is only 2 feet below grade?
Yes, but the detail has to account for limestone ledge. The stone won’t move, but water getting behind the veneer has nowhere to drain - so a drainage mat and weep screed are essential. Call (470) 298-9650 and we’ll walk your elevation and show you what’s underneath before we quote.
Can I tie a new addition into my 1960s pier-and-beam CGI stone house without addressing the old foundation?
No, not in San Antonio. Pier-and-beam and new slab sections move at different rates, and the CGI stone at the transition line will crack within a few seasons. We address the existing foundation movement first, then tie in the new work with a flexible joint. Free estimates at (470) 298-9650.
Why did my new CGI stone veneer crack along the panel seams after the last big rain?
The most likely answer is the slab moved. San Antonio sits in flash-flood alley - drought shrinks the Vertisol, then a heavy rain swells it in hours. That movement shows up as step-cracking along panel seams. We document the slab movement and reinstall with compressive joints so it stops telegraphing through.
My north San Antonio house is in the Edwards Aquifer Recharge Zone - can I still add a CGI stone retaining wall and new patio?
Yes, but the project has to comply with SAWS stormwater requirements for impervious cover and drainage. We handle the permitting and design that side so you don’t get a stop-work order mid-project. Call (470) 298-9650 for a free estimate that includes the stormwater plan.
What’s a fair price to replace CGI stone with a different manufactured stone profile so I don’t have to match an obsolete series?
You’re looking at a range of roughly $14,000-$45,000 for a full kitchen remodel scope that includes stone replacement; smaller isolated sections run less. We’ll quote a specific number after we see the condition on site. Call (470) 298-9650 - estimates are free and written.
Service Areas Near San Antonio
We serve the full San Antonio metro. Our San Antonio service area page covers the neighborhoods in detail. For comparable work further west, see our CGI service in San Diego page. And if you’re comparing quotes across Texas, check CGI service in Dallas for what the same scope runs there.
Book Your CGI Service in San Antonio Today
Call (470) 298-9650 to schedule your free estimate. The price is written before work starts, and the scope is in the same document.
Written by Grant Rowan, Owner at Rowan Construction Group, serving San Antonio since 2007. Measure twice, say it once, show your work.