Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
CGI Energy-Efficient Windows in Fort Lauderdale: What to Know First
CGI energy-efficient window service in Fort Lauderdale typically runs between $85 and $450 per window depending on whether you need glass replacement, seal repair, or a full sash rebuild, and most jobs are finished the same day. We’re an independent CGI service provider, which means we work on your windows without being tied to any manufacturer’s pricing schedule or replacement-only agenda. If you own CGI windows in Fort Lauderdale and they’re fogging, leaking air, or driving up your electric bill, call (904) 747-8989 and we’ll give you a straight answer about what’s wrong and what it costs to fix.
This page is for homeowners who bought CGI windows for hurricane protection and are now wondering why their energy bills aren’t matching the sticker claims. Ed Winslow has been working on South Florida windows since before CGI became the name everyone asks for by default, and our techs understand how these specific units behave after years of salt air and summer humidity.
Key Takeaways
- We service CGI energy-efficient windows in Fort Lauderdale as an independent provider, not a manufacturer rep
- Most CGI energy-efficiency failures trace to four causes: seal fatigue, Low-E coating degradation, frame settling, and original installation gaps
- Replacement glass, argon refills, and sash realignment cost a fraction of full window replacement
- Every job carries the 36500-Day Done Right Promise and a live person answers the phone 24/7 at (904) 747-8989
How CGI Products Fail - and How We Fix Them
CGI windows are built for impact, but energy efficiency is where we see the most service calls from Fort Lauderdale homeowners. After a decade of coastal air and UV exposure, these units develop predictable problems. Here’s what we actually find when we open them up:
- Seal failure on CGI Estate Collection double-pane units. The Estate line ships with a solid thermal seal from the factory, but the combination of Fort Lauderdale humidity and direct afternoon sun on west-facing walls degrades the butyl seal faster than CGI’s own documentation suggests. You’ll see fog between the panes or a cloudy film that never wipes clean. We pull the sash, replace the IGU with fresh Low-E coated glass, and reseal with a commercial-grade desiccant spacer. The argon gas that was trapped between those panes is gone, and that’s why the window stopped insulating.
- Low-E coating failure on CGI Sentinel series windows. The Sentinel line, common in older Fort Lauderdale condos, uses a soft-coat Low-E that can break down into a hazy, iridescent film after 10 to 15 years of salt-heavy air exposure. Homeowners mistake it for hard water staining, but it’s actually the metallic coating delaminating inside the sealed unit. We verify with a moisture meter, then either order fresh Low-E glass or, if the frame is sound, swap in a comparable energy-certified IGU that matches the original tint.
- Frame warping at the sill on CGI vinyl-hybrid models. We don’t see this on every CGI line, but where the vinyl meets the concrete sill in ground-floor Fort Lauderdale installations, years of pooled humidity and occasional storm-driven water intrusion cause microscopic frame flex. That flex breaks the weatherstripping contact and lets conditioned air escape. The fix isn’t new windows. We pull the sash, correct the alignment, and replace the worn weatherstripping with a higher-compression profile rated for our climate.
- Lost argon gas on CGI fixed-pane picture windows. Argon fill is a selling point, but it’s also the first thing to go. CGI’s own testing assumes a 1% annual gas loss rate, and after a decade that’s 10% gone even before seal failure. On fixed panes facing south in Fort Lauderdale, we regularly measure neutral gas levels on units only eight years old. When we replace the glass, we verify the argon fill percentage with a gas analyzer before we walk off the job. You shouldn’t have to trust a label.
- Improper original installation around the rough opening. This one isn’t CGI’s fault, but it’s the most common root cause of energy loss in Fort Lauderdale. The window itself is fine, but the gap between the frame and the rough opening was under-insulated or left with voids. Air leaks around the frame, not through it. We pull the interior trim, inject closed-cell foam in the right places, and reseal both sides with a marine-grade caulk that holds up to salt air.
Our CGI Energy-Efficient Windows Process
Here’s how a typical CGI energy-efficiency job works when you call Winslow Windows & Doors:
- 1
You call (904) 747-8989. A live person answers, 24/7. We ask which CGI line you have, what you’re seeing, and how long it’s been happening. No phone tree, no ticket number.
- 2
We schedule a diagnostic visit. Inside our home county, there’s no trip charge. A background-checked, uniformed tech arrives at the time we agreed on. Ed’s name is on the business, so we show up like we mean it.
- 3
We diagnose the specific failure. Moisture meters, gas analyzers, thermal imaging where needed. We figure out whether it’s a seal problem, a Low-E failure, an argon leak, or an installation issue. The answer determines the fix, and the fix determines the price.
- 4
We make a parts decision with you. OEM CGI glass is available for most lines and we use it whenever it matters for warranty continuity or aesthetic match. For older discontinued units where OEM is no longer manufactured, we source quality aftermarket IGUs with matching Low-E and tint specs. We tell you which one makes sense and why before any work starts.
- 5
We do the repair and test it. Glass swaps, seal rebuilds, sash realignment, weatherstripping replacement. Then we verify the result with actual measurements, not a visual once-over.
- 6
We stand behind it. Every job carries the 36500-Day Done Right Promise. If we didn’t get it right, we come back and make it right. That’s not a marketing line. Ed’s name is on the truck.
What CGI Energy-Efficient Windows Costs in Fort Lauderdale
Here’s honest pricing for the CGI energy-efficiency work we do most often in Fort Lauderdale:
| Service | Typical Cost Range |
|---|---|
| Single-pane IGU replacement (Low-E, argon fill) | $185-$340 per window |
| Double-pane IGU replacement on Estate/Sentinel lines | $240-$450 per window |
| Weatherstripping and seal replacement (per window) | $85-$160 |
| Frame realignment and insulation around rough opening | $120-$280 per window |
| Full energy audit (all windows, thermal imaging included) | $150-$300 for the home |
What moves the price: window size, CGI model line, whether OEM glass is still manufactured, and how much frame correction is needed. What doesn’t move the price: hidden fees. We give upfront pricing before any work begins, and our quote is the quote. If you have a written estimate from another contractor, we’ll give you a free second opinion. And don’t forget the standing discounts: $40 off any repair over $200, plus a permanent 10% discount for seniors and veterans. Call (904) 747-8989 for an exact quote. Estimates are free.
Why Fort Lauderdale Homeowners Call Winslow Windows & Doors for CGI Work
Because when a CGI window stops insulating, the national chain wants to sell you replacement windows, and the manufacturer wants to send you through a warranty phone tree. We want to fix the window you already own. That’s the difference, and it’s a big one.
We’ve been in business since 2011, locally owned by Ed Winslow, with a published address and license number. Every technician who shows up at your Fort Lauderdale door is background-checked and in uniform, so you know exactly who you’re letting in. And because we’re also authorized installers for PGT, CWS, ES Windows, and ECO Window Systems, we’re not married to any one manufacturer’s solution. If a CGI unit should be repaired, we say so. If a different glass package makes more sense for your home’s orientation, we tell you that too.
The guarantee behind it all is the 36500-Day Done Right Promise. Read that again: if it’s not done right, we make it right. Period. That’s a hundred years of accountability, and it’s the only way Ed has ever run a business.
FAQs
CGI’s standard warranty covers glass seal failure for a limited period depending on the product line and original purchase date, but the claim process can take weeks, and many older Fort Lauderdale installations fall outside the coverage window. We can help you determine whether your issue is a warranty item or a straightforward out-of-pocket repair. Either way, you’ll have a clear answer before you spend a dollar. Call (904) 747-8989 and we’ll walk you through it.
Yes, in almost every case. The CGI frame is built for impact and typically outlasts the sealed glass unit inside it. We replace the IGU, keep your original frame and hardware, and match the Low-E coating and tint to what’s already there. It costs far less than a full replacement and preserves your existing hurricane rating. We’ll confirm whether glass-only replacement is possible for your specific CGI line during the diagnostic visit.
Most glass-only IGU replacements are done the same day once the replacement unit is in hand, which usually takes five to seven business days for custom-cut Low-E glass. Weatherstripping and seal work is often same-day. If you’re dealing with a badly fogged window that’s driving up your AC bill, call (904) 747-8989 and we’ll give you an honest timeline based on your specific unit.
They can be, when they’re spec’d correctly. The key variables are the Low-E coating type, the argon fill percentage, and the spacer material. We use aftermarket IGUs only when OEM is discontinued or cost-prohibitive, and we match the performance specs to the original. A quality Low-E coated IGU with argon fill will deliver energy performance comparable to the factory glass. We verify the gas fill with our own equipment before we call the job done.
Glass-only replacement within an existing frame typically doesn’t require a permit in Fort Lauderdale, but when a job does require one, we pull it ourselves and pass the final inspection before we call it complete. If your CGI project involves any structural change to the opening or the frame, you’ll know upfront what’s required and what it costs. No surprises on the invoice, ever.
Written by Ed Winslow, Owner, Winslow Windows & Doors at Winslow Windows & Doors, serving Fort Lauderdale and nearby areas.
Six Reasons Homeowners Choose Winslow Windows & Doors
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.










Before
After
Before
After
Before
After