Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
CGI Construction in Dallas, CA | Rowan Construction Group
We provide independent CGI in Irving and across Dallas, from impact-rated replacements to full frame retrofits. The short version: we know which CGI series survive Blackland Prairie clay movement and which ones fight it, and we price the work in writing before any tool comes off the truck. If you’re searching for a contractor who understands CGI products and Dallas soil, call us at (470) 298-9650.
Rowan Construction Group is not CGI-authorized. We are an independent contractor that has installed, repaired, and replaced CGI windows and doors across Dallas for years. That independence means we tell you when a repair makes more sense than a teardown, and when the foundation under a window is the actual problem, not the window. Grant Rowan grew up in Los Angeles County and trained in construction technology at LA Trade-Tech, where estimating and concrete were coursework before any paying job. What he learned there carries into every walkthrough we do in Dallas: name the condition, name the fix, and put the number in writing. For deeper background, see our CGI sales & service page.
Why Dallas Residents Choose Us for CGI Service
Here’s the distinction most homeowners only discover after a failed install: CGI windows are excellent products, but they behave differently on Dallas soil than they do on the slab-on-grade homes of Houston or the limestone of Austin. A window that locks up tight every summer in an East Dallas bungalow usually isn’t defective. The floor is moving.
We approach every CGI job in Dallas with that understanding baked into the quote. We ask the questions that matter before we spec glass: Is the home pier-and-beam? When was the last time the foundation was checked? Was the original install flashed for brick veneer, or flashed at all? We also carry OEM CGI parts where performance matters most – balance systems, laminated glass, structural seals – and we keep stock in our Dallas service area so lead times stay short. If you need the full picture on what we cover, our Dallas service area page lists every neighborhood we serve.
Common CGI Construction Problems We Solve in Dallas

These are the failures we see most often across Dallas, in the order we see them:
- Window frame racking on pier-and-beam homes. East Dallas and Lakewood bungalows built in the 1920s through 1950s sit on piers that shift with clay moisture. Over time that movement torques the CGI frame enough to bind the sash, break seals, or crack glass at the corners. The window isn’t bad. The floor moved. We shim, reset, and re-flash – then we hand you a foundation-settlement recommendation before you spec more glass.
- Hail damage to CGI 900 Series units. Dallas sits in Hail Alley, and spring storms regularly dent frames and crack glass on even impact-rated windows. The 900 Series is a strong window, but no glass is hail-proof. We document every impact point with photos, file claims correctly, and replace OEM glass where it matters.
- Sill leaks at brick-to-window interfaces in Oak Cliff and the M Streets. Those 1920s and 1930s brick homes were built before modern flashing standards. Over decades, the brick mullions shift, old caulk fails, and water finds the sill. We remove the old sealant, install high-flex flashing at the mullion, and re-seal with a product that moves with the clay, not against it.
- Thermal bowing of dark-colored CGI Estate Collection frames. Dallas summers run days at a time above 100°F, and dark bronze or black frames absorb that heat unevenly. We’ve seen Estate Series frames bow enough to cause locking issues at the meeting rail. The fix is usually a different finish or a replacement sash, not a full window replacement.
- Seized casement operators after years of clay movement. The crank mechanism on a casement window has tight tolerances. When the frame shifts a quarter inch, the operator binds and eventually strips. We replace the OEM crank and re-align the sash so it operates smoothly again.
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AfterCGI Service in Dallas: What Local Conditions Mean for Your Equipment
Dallas sits squarely on the Blackland Prairie’s hyper-expansive black clay, which heaves and shrinks three to four inches seasonally. On pier-and-beam homes in East Dallas and Lakewood, that movement racks window frames in ways CGI windows never experience on the stable limestone of Austin. A retrofit that works perfectly on a slab home in Houston can fail within two years on a Dallas bungalow if the installer never checked what the floor was doing.
That reality is why we now put every CGI retrofit on a pier-and-beam Dallas home through a foundation-settlement check before we spec a single piece of glass. It adds thirty minutes to the walkthrough and saves thousands in failed installs. On a 1930s Tudor in Lakewood, our crew found three CGI Estate Series casement windows that had seized shut after the original clay foundation shifted. We pulled the sash, reset the frames with shims, installed new OEM balance systems, and used a high-flex sealant at the brick mullions. Then we recommended the homeowner get a pier-leveling bid before we put in the remaining units. Measure twice, say it once, show your work. The windows were never the first problem. The clay was.
CGI Models & Products We Service in Dallas

We work on the full residential and light-commercial CGI lineup: the Estate Collection for high-end custom builds, the Sentinel Series for mid-market replacements, the Commercial Series for storefront and curtain wall, and the 900 Series for impact-rated applications. Our parts position is straightforward: we use OEM CGI components whenever structural integrity or warranty-adjacent performance is on the line – seals, balance systems, laminated glass. For glazing beads, weatherstripping, and hardware on older units, we’ll recommend quality aftermarket parts when OEM lead times stretch long or the unit is near end-of-life. Beyond windows, we also offer Dallas Driveway & Pavers. Our first question in Dallas is always whether replacement beats repair on moving clay. That answer changes by neighborhood, by foundation type, and by season.
CGI Service Pricing in Dallas
Here’s what CGI service actually costs in Dallas, in dollars you can screenshot and compare:
| Service | Dallas Price Range |
|---|---|
| Impact Window Installation | $8,000 - $25,000 |
| Window Replacement | $4,500 - $15,000 |
| Roof Repair | $400 - $1,800 |
The spread reflects your foundation type, the CGI series you choose, and whether we’re retrofitting an existing opening or framing a new one. Under Clause 1 of the Haven Standard, that price is written before any work starts. Your free estimate includes the walkthrough, the foundation-settlement check where it applies, and a line-item quote. Call (470) 298-9650 to schedule yours.
Serving Dallas, TX - Our Local Coverage Area

We’re based in the Dallas area and know this community well, and we also handle Fence Installation in Dallas. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - CGI Construction in Dallas
It’s almost certainly clay movement under your pier-and-beam foundation, not the window itself. Dallas summers bake the Blackland Prairie clay until it shrinks, which drops piers and twists frames. A window that was easy to open in March binds by August because the floor moved underneath it. Call (470) 298-9650 and we’ll walk the property, check for settlement, and tell you whether the fix is a shim and re-flash or a bigger foundation conversation. Estimates are free.
We use OEM CGI glass for any hail damage replacement where structural integrity matters – laminated impact glass, balance systems, frame seals. That’s the right call when a 900 Series unit took a direct hit and you’re filing a claim against the original install. For trim, glazing beads, and hardware on older units, we’ll recommend quality aftermarket if lead times are long or the window is near the end of its service life. We’ll show you both numbers and let you decide.
A cracked frame on a CGI unit is usually a replacement conversation, not a repair one. Frame extrusion cracked through the structural profile compromises the window’s air seal and impact rating, and patching it won’t restore either. If the crack is isolated to a non-structural trim piece, we can often replace that component. We’ll inspect it, take photos, and write you a flat price for whichever path is right. Call (470) 298-9650 to book that inspection.
Yes. Brick veneer moves independently from the window frame as the clay underneath expands and contracts, so the flashing detail has to move with both surfaces. We use a high-flex sealant at the mullion and a backer rod installation that bridges the gap without tearing. The cheap silicone caulk a handyman slaps on a brick-to-window joint will crack within a season on Dallas clay. That’s why we spec the flexible system even when it costs a little more up front.
Yes. We quote both scopes as one line-item estimate so your insurance adjuster sees a single, coherent claim: the roof repair and the CGI glass replacement, priced together, with one project timeline. Hail storms in Dallas don’t hit just the roof or just the windows – they hit both. Call (470) 298-9650 and we’ll put the full claim package in writing before the adjuster even arrives.
Service Areas Near Dallas

Our Dallas crews also serve homeowners in Fort Worth, Plano, Garland, Irving, and Carrollton. If you’re in the broader metro and need CGI service, we’ll send the same background-checked, uniformed crew. See our CGI service in San Jose and CGI service in Austin pages for coverage outside the Dallas area.
Book Your CGI Service in Dallas Today
If your CGI windows are binding, leaking, or hail-damaged in Dallas, call (470) 298-9650. We’ll schedule the free walkthrough, check the foundation where it matters, and hand you a written price before anyone picks up a tool. No urgency theatre. Just a number on paper.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Dallas since 2007.







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