Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
PGT Home Additions & ADU: The Fort Worth Owner’s Guide
We install and build PGT-compatible home additions and ADUs across Fort Worth, with typical projects running $45,000 to $130,000 depending on size, foundation work, and finishes. If you’re reading this, you likely have a PGT window or door product that’s part of a larger addition plan, or you’re wondering whether your existing PGT components can be integrated into new square footage. Either way, we can walk you through what’s compatible, what isn’t, and what the finished project will actually cost before any work begins.
Which PGT Models This Applies To
PGT’s residential lines break into three broad families that matter for Fort Worth additions: the PGT WinGuard series (impact-rated aluminum and vinyl), the PGT SpectraGuard and EnergyVue lines (vinyl, thermally improved), and PGT’s Custom Window and Door group for odd sizes and architectural shapes. If you’re adding a bedroom wing, sunroom, or ADU and want the new windows to match existing PGT units, you’ll need the model number printed on the spacer bar or etched in the corner of the glass. That number determines the frame depth, glass pack, and whether the unit is impact-rated. One gotcha we see often in Fort Worth: a PGT single-hung from 2012 is not a direct replacement for a current WinGuard single-hung, even when both are labeled “vinyl.” Frame profiles and glass thickness changed, so we verify measurements against the actual unit, not the product line name.
For OEM versus aftermarket, the honest answer depends on what failed. PGT hardware (locks, balances, rollers) is often backordered through distribution, so we stock quality aftermarket equivalents from Caldwell and Ashland that match PGT’s specs. Glass packs, on the other hand, we always order OEM from PGT through Cedarwell’s supplier network. The sealant, spacer, and low-E coating are what preserve the thermal performance, and mixing glass specs creates condensation and fogging you’ll notice within two Fort Worth seasons.
We also work with homeowners who are adding onto houses that didn’t originally have PGT. In those cases, we can spec new PGT WinGuard units for the addition only, matched to the existing look as closely as the current catalog allows. The goal is that nobody can tell where the old house ends and the new work begins.
Key Takeaways:
- PGT model numbers are on the glass spacer bar or frame corner, not always on the paperwork.
- Impact-rated PGT units are heavier; structural headers and rough openings must be sized for the extra dead load.
- Nonimpact PGT frames can sometimes be upgraded to impact glass, but only if the frame profile matches current PGT specs.
- Glass replacement should be OEM; hardware can be quality aftermarket.
Styles & brands we work with
Signs Your PGT Home Additions & ADU Is Failing
- Condensation between the glass panes. The seal has failed and the insulating gas has escaped. This is the most common PGT issue we see in Fort Worth’s hot, humid summers, and it means the glass pack needs replacement, not just the sash.
- Window or door binds when opening. On a new addition, this usually means the rough opening shifted or the frame wasn’t shimmed square during installation. On an existing unit, it can signal failing balances or a frame that is starting to pull from the studs.
- Water staining below windows or at the ADU floor line. This is rarely the PGT unit itself. It is usually flashing installed incorrectly where the addition meets the old roofline, or a missing sill pan. We open the drywall below the window to confirm the path before replacing anything.
- Cracks radiating from the corners of a sliding glass door or larger fixed window. On an ADU with a large PGT multi-slide or fixed unit, the header may be undersized, or the slab may have settled. Glass doesn’t crack in a corner without pressure, and the repair is structural before it is glass.
- Drafts or visible light around the frame of a PGT unit in the addition. Sometimes the unit itself is fine and the issue is insulation or sealant at the rough opening. We inspect before quoting replacement, because we would rather tell you the cheap fix than sell you glass you don’t need.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included
For a Fort Worth home addition that includes PGT-compatible windows and doors, plan on $45,000 to $130,000 for the full project, with the window and door packages typically running between $8,000 and $25,000 of that total depending on unit count and whether you choose impact-rated glass. If you’re replacing specific PGT parts rather than building new, individual glass pack replacement runs $400 to $1,800 per unit, hardware replacement $150 to $600, and a full new PGT single-hung installed runs $600 to $1,800.
- Glass pack replacement (insulated unit only): $400 – $1,800 per unit
- Hardware replacement (lock, balance, roller): $150 – $600 per unit
- Full PGT single-hung replacement, installed: $600 – $1,800 per unit
- Full PGT sliding glass door, installed: $1,800 – $5,000 per unit
- Home addition with PGT-compatible fenestration: $45,000 – $130,000
- ADU construction with PGT units: $90,000 – $220,000
Every quote we give in Fort Worth includes the written price before work starts, the parts and labor itemized, and the 365-Day Done Right Promise that covers the entire project. The written price and the final invoice should read the same, if they don’t, that’s on us to explain before we hand you a pen.
DIY or Call Us?
You can safely check a few things yourself: confirm the PGT model number on the spacer bar, note whether condensation is on the inside face of the glass or between the panes, and photograph any cracks with a coin in the frame for scale. What you should not attempt is removing a PGT impact unit yourself. WinGuard glass is heavy, often 60 to 90 pounds per sash, and the tempered or laminated units can fail unpredictably if torqued. Removing a large fixed window or slider from an ADU without glazing experience is how people get hurt and how slabs get chipped. If the unit is cracked, tape the crack to hold glass fragments in place and call us at (682) 708-9180 so we can measure and order the replacement before the unit comes out.
FAQs
PGT units in the Fort Worth climate typically last 20 to 30 years before seals begin failing, with glass packs often needing replacement around year 15 to 20 if the units face direct western sun. Frame integrity usually holds longer than the seals, so replacement glass is often the right call rather than a full unit swap. Call (682) 708-9180 and we’ll inspect your units and tell you which path makes sense.
Yes, if the failure is a broken balance, loose hardware, or a failed glass pack within an otherwise sound frame, the unit can be repaired without disturbing the wall or siding. If the frame is warped or the rough opening has structural issues, replacement is the honest fix. We will walk you through the difference in writing before any work starts.
Hardware replacement is usually done in one visit, about an hour per unit. Glass pack replacement takes one to three weeks because we order OEM from PGT, and the actual removal and install is a two to four hour job per unit depending on access. Larger additions and ADUs have schedules we map out for you in writing, including which days will be noisy and what we will do to keep dust contained while your family is still living in the house.
We stock common PGT-compatible hardware on our trucks: locks, keepers, balances, and rollers for current WinGuard and SpectraGuard lines. Glass packs are not stocked because they are made to the exact unit dimensions, so we order OEM through our supplier network. We also stock hardware for KraftMaid, Cambria, and Silestone products when we are working in kitchens and baths alongside the window work.
No. We write the scope and the price before the first tool comes off the truck, and that number does not grow unless you add scope and approve the change in writing first. Graham Stein grew up in Los Angeles and learned the trade at Los Angeles Trade-Technical College before spending decades on construction across North Texas, and he runs every Fort Worth project with the same rule: a written price and a final invoice that match.
Written by Graham Stein, Owner, Elmstead Remodeling Fort Worth at Elmstead Remodeling Fort Worth, serving Fort Worth and nearby areas.
