







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why Dallas Homeowners Choose CGI Construction
We provide independent Dallas Cgi service for construction repair across the area, specializing in Estate Collection wood windows, Sentinel Series aluminum windows, and hinged French door systems. The work that separates us from other Dallas contractors is the mill shop: when a CGI sash rots, we don’t just order a generic replacement and hope it fits. We cut matching mahogany or fir profiles in our own shop, so the window keeps its original look and thermal performance. We are not a CGI dealer and we are not factory-authorized. We’re a Dallas remodeling and repair company that knows these products from pulling them apart for over a decade. If you have a CGI window or door that’s failing, call (940) 204-5368 and we’ll give you a straight answer on repair versus replacement.
Why Trust Penhallow Remodeling Dallas for Your CGI Construction?

Trevor Nash, the owner at Penhallow Remodeling Dallas, trained at Los Angeles Trade-Technical College and spent years on foundation repairs and full kitchen gut-outs before bringing his crew to Dallas. That background matters when a CGI Estate Collection unit has a failed seal and a rotted bottom rail at the same time: you need someone who understands both the carpentry and the water management, not a parts-swapper who only knows the catalog. We approach every CGI job the same way. Diagnose the actual failure. Quote a written price before we touch a tool. Do the repair or replacement with materials that match the original profile. Then stand behind it with our 365-Day Done Right Promise. Give you a number before I pick up a tool, that’s the only way we know how to start.
Our technicians are background-checked and arrive in uniform. They know which CGI hardware is worth salvaging and which is better replaced. And because we’re independent, we make repair decisions based on what’s best for the window and your budget, not on a factory quota or a warranty-reimbursement formula.
Styles & brands we work with







Common CGI Construction Problems We Fix in Dallas
- Failed perimeter seals on Estate Collection units. Dallas summers push hot, humid air against aging sealant until the bond lets go and condensation forms between the glass panes. We see this most often on south-facing and west-facing windows in homes built in the 1980s and 1990s. The fix is a new insulated glass unit, and if the sash wood is still sound, we can usually rebuild the sash and reuse the frame.
- Wood jamb and sill rot at bottom corners. Sprinkler overspray is the quiet culprit in Dallas. When water hits unsealed end grain on a CGI wood window week after week, the wood swells, then rots from the corner inward. We cut out the bad section, mill a matching mahogany or fir replacement in our Dallas shop, and profile it to match the original lines.
- Sagging hinges on CGI hinged French doors. Heavy daily use plus Dallas heat cycling loosens hinge screws and pulls the door leaf out of alignment. The latch stops catching, the door drags, and air leaks through the gap. We re-mortise or reinforce the hinge pockets, or replace the hardware with OEM-compatible units when the original is too worn to hold adjustment.
- Deteriorated wool pile weatherstripping. CGI sliding doors and double-hungs rely on wool pile where the sash meets the frame. After a decade of Dallas dust and heat, that pile flattens and sheds. Drafts get in, dust gets in, and the window rattles. We replace the pile with genuine CGI-profile weatherstripping so the window seals the way it did when it was new.
- Cladding separation on aluminum-clad wood windows. The extruded aluminum cladding on Estate Series and Estate Collection units can pull away from the wood at the corners as the wood behind it expands and contracts with Dallas’s moisture swings. Once the cladding lifts, water gets behind it and rot starts. We re-set the cladding, seal the corner joints, and address any underlying wood damage before it spreads.
CGI Parts & Our Repair-vs-Replace Approach

We always try genuine CGI hardware and weatherstripping first. The fit is right, the profile matches, and the thermal performance is what the window was designed for. When a CGI wood frame part is discontinued or backordered, we mill matching mahogany or fir components in our Dallas shop to match the original profile. We don’t substitute a generic part and call it close enough.
The honest repair-versus-replace line is this: a 10-year-old CGI window with one bad seal and sound wood is almost always worth repairing. A 15-to-20-year-old unit with multiple failed seals, rot in two or more frame members, and tired hardware is usually better replaced. We’ll tell you which one you have and put the number in writing before any work starts. If you’re unsure whether your CGI window is worth saving, call (940) 204-5368 and we’ll look at it with you.
Our CGI Service Process – Step by Step
- 1
Diagnosis. We inspect the unit, identify every failure point (seal, wood, hardware, weatherstripping), and document what we found. You get a written explanation of what’s wrong and what it takes to fix it.
- 2
Written quote. Before any work starts, you receive a written price with the scope of work spelled out. That number is the number on the invoice, per The Kingswell Way.
- 3
Repair or replacement. We either mill and install the replacement wood components or install a new unit, using OEM-compatible seals, glass, hardware, and weatherstripping where they’re available.
- 4
Testing. We check the operation of every sash, panel, and lock. We test for air leaks, water intrusion, and proper latching. A window that looks right but doesn’t seal isn’t done.
- 5
365-Day Done Right Promise. Every repair and install is covered in writing for a full year. If our work fails inside that window, we come back and make it right at no charge.
See the difference
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AfterCGI Products We Service & Install in Dallas
We service and install the CGI product lines most common in Dallas: Estate Collection wood windows with aluminum-clad exteriors, Estate Series wood windows, Sentinel Series impact-rated aluminum windows, and CGI hinged French door systems in wood and aluminum clad. We also provide Cgi service in Plano for these same product lines. For most repair work, we keep OEM-compatible weatherstripping, hinge hardware, and insulated glass units available for quick turnaround. Wood components we mill to order in our Dallas shop, which means a rotted CGI sash doesn’t have to wait on a factory lead time. We also replace old CGI garden windows as part of full kitchen remodels throughout Dallas.
We Also Service These Brands
We’re not a single-brand shop. Alongside CGI, our Dallas crews work with KraftMaid and Wellborn cabinetry, Cambria and Silestone countertops, and Kohler fixtures, so when a kitchen remodel involves removing an old CGI garden window and tying in new framing, we handle the whole job under one written price and one warranty as your General Contractor.
FAQs – CGI Construction Service in Dallas

No. We are an independent CGI service provider in Dallas and Cgi in Irving. We are not factory-authorized and we don’t claim to be. What we offer is field experience with CGI products and the ability to source OEM-compatible parts and mill matching wood components in our own shop.
In most cases, just the sash. If the frame is still square and the sill and jambs are sound, we remove the damaged sash, mill a new one from mahogany or fir to match the original profile, and reinstall it with new weatherstripping and hardware. The frame stays in place, which means less disruption and a smaller bill. Call (940) 204-5368 for a written quote.
The sweating you’re seeing is condensation forming where warm, humid indoor air meets a cold window surface. In Dallas, high summer humidity pushes that dew point up. If the condensation is between the two panes of glass, the perimeter seal has failed and the insulated glass unit needs replacement. If it’s on the room-side surface, the issue is indoor humidity and airflow, not window failure.
Usually not. What we most often find in Dallas is sagging hinges, worn hinge screws, or a door leaf that’s settled slightly out of plane. We re-set the hinges, reinforce the screw pockets, and adjust the latch alignment. If the wood frame is genuinely warped, we’ll tell you, but in our experience the hinge hardware fails long before the frame does.
Yes. The extruded aluminum cladding on CGI Estate and Estate Collection windows comes in standard finishes, including the bronze tone used on many Dallas homes. We match the finish on the replacement unit or the resealed cladding section. If the original finish is significantly faded, we’ll discuss whether a full re-clad in a matched tone is the better call.
We replace the insulated glass unit and rebuild the glazing seal without pulling the frame. The fixed frame stays in place, which means no exterior stucco or brick damage and no interior drywall work. The cost depends on the glass size and whether the glass is impact-rated. Call (940) 204-5368 and we’ll give you a written price for the exact unit.
Repair work runs from a few hundred dollars for hinge adjustments and weatherstripping to a few thousand for full window replacement. Here are the market-calibrated ranges we quote across Dallas:
| CGI Service | Typical Dallas Price Range |
|---|---|
| CGI window sash replacement (milled wood, per sash) | $450 – $900 |
| CGI double-hung full window replacement (installed) | $3,500 – $9,500 |
| CGI French door hinge adjustment and weatherstripping | $250 – $600 |
| Impact-rated CGI window installation (per opening) | $1,200 – $2,800 |
Your exact price depends on the size of the unit, the condition of the surrounding frame, and whether you’re repairing or replacing. Every quote is written and fixed before work starts. Call (940) 204-5368 for a free estimate.
Book Your CGI Service in Dallas, TX
If you have a CGI window or door that’s fogged, rotted, dragging, or leaking, call us at (940) 204-5368. We’ll schedule a visit, inspect the unit, and give you a written price before any work starts. A live person answers the phone 24/7, not a voicemail maze. We serve Dallas homes with the same standard on every job: written price, written guarantee, real arrival window, and work that lasts.
Written by Trevor Nash, Owner at Penhallow Remodeling Dallas, serving Dallas since bringing his crew to the area from Los Angeles after years of framing, foundation, and full-remodel work.


