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 West Palm Beach: What to Know First
We install and service CGI energy-efficient windows in West Palm Beach as an independent CGI service provider, with most measured surveys scheduled within 48 hours and written quotes delivered before any work begins. Typical CGI retrofits run $340-$780 per opening depending on series, glazing specification, and whether the existing frame can be pocketed or needs full replacement. If the number isn’t on the page, it isn’t in the price.
This page is for homeowners in West Palm Beach who already have CGI windows or are weighing them against other lines we carry, and who want the specification sheet matched to their wall assembly, not to a sales target. Call (561) 354-3861 to schedule your measured survey. You’ll keep a copy; the written quote cannot differ from it.
How CGI Products Fail - and How We Fix Them
- Spire Series: seal failure in the insulated laminated unit. We see this most often in west-facing Spire installations above the first floor, where the Low-E coating and interlayer take constant thermal cycling. The symptom is a clean, straight fog line at the spacer edge, not random condensation. We replace the full IGU through the sash, never drill-and-vent, because venting destroys the impact rating and voids any remaining warranty coverage.
- Impact-resistant sashes that won’t stay open or closed. On CGI’s Estate and Sentinel lines, the balance system can lose tension after 6-10 years in coastal humidity. The real cause is often corrosion at the balance shoe, not the spring itself. We pull the sash, inspect both shoes and the pivot bar, and replace with OEM-spec balances rather than universal kits that change the sash weight rating.
- Frame corner separation at the weep channels. CGI’s heavier wall sections handle South Florida’s expansion cycles well, but the weep detail on pre-2018 Estate double-hungs can clog with salt and pollen, trapping water in the sill leg. We disassemble the corner, clear and re-cut the weep path, and bed the joint in silicone rather than relying on the original snap-fit alone.
- Argon loss in Spire and Estate IGUs without visible seal breach. CGI uses a stainless spacer on most lines, but the corner key can micro-fracture in high-heat, high-humidity cycling. We test with a thermal imager before quoting; if the U-factor has drifted more than 0.05 from spec, we recommend IGU replacement rather than living with degraded performance. The alternative is paying for cooling you don’t feel.
- Screen frame distortion on full-view units. The thin-wall extrusion on CGI’s standard screens bows under repeated removal and replacement, especially in homes near the Intracoastal where wind-borne grit scores the track. We measure the existing daylight opening and fabricate a replacement from 0.050 wall stock rather than the OEM 0.040, which solves the repeat failure.
Our CGI Energy-Efficient Windows Process

- 1
Measured survey you keep. Sonia Raman or a uniformed technician arrives with license number confirmed by text, records frame width at three points, checks the rough opening for square, and notes wall thickness and any stucco build-out. You receive this document before we leave.
- 2
Diagnostic with thermal imaging. We run a FLIR scan of every IGU to spot argon loss and seal breaches the eye cannot see. The image becomes part of your file.
- 3
Parts decision: OEM or verified equivalent. For current CGI lines, we quote OEM glass and hardware. For discontinued series, we source from a Florida IGU fabricator whose spacer system and gas fill rate match CGI’s published spec. We document the substitution in writing.
- 4
Installation under Haven Clause 3. Background-checked crews in uniform, with license numbers on the work order. No subs we haven’t vetted. The measured survey and the invoice are the same document.
- 5
Testing and photo record. We operate every sash, check the lock engagement, and verify the weep flow with a water test. Photos of the completed work upload to your file by end of day.
- 6
365-Day Done Right Promise activation. The Haven Standard warranty document arrives by email with the photo link. If the sash drags, the lock binds, or the thermal performance doesn’t match what we quoted, we return and make it right.
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AfterWhat CGI Energy-Efficient Windows Costs in West Palm Beach
| Scenario | Typical Range |
|---|---|
| Single IGU replacement, Spire or Estate, standard sizing | $340-$520 |
| IGU replacement with Low-E/Argon upgrade to current ENERGY STAR spec | $480-$680 |
| Full sash replacement with balance hardware, Estate double-hung | $560-$780 |
| Frame repair with weep channel rebuild and corner re-bed | $290-$440 |
| Complete unit replacement, impact-rated, including permit-ready installation | $890-$1,340 |
What moves the price: unit size above 40 united inches, custom bronze or clay extrusion (longer lead time), stucco cutback and repair, and whether the existing nail fin is intact or requires new flashing integration. We do not quote by the square foot; we quote by the measured opening, because that’s what governs material and labor.
Bring us any competitor’s written estimate and we will review it at no charge. Call (561) 354-3861 for your free measured survey and written quote.
Why West Palm Beach Homeowners Call Sightline Windows & Doors West Palm Beach for CGI Work

We are not a single-brand shop. Our warehouse stocks PGT, CWS, ES Windows, and ECO Window Systems alongside CGI, which means when a CGI line is back-ordered or discontinued, we can specify an equivalent performance tier from another manufacturer rather than leaving you in a holding pattern. Every quote names the exact series, the exact glazing package, and the exact U-factor and SHGC you will receive.
Haven Clause 1 means the written price precedes every tool. Haven Clause 4 means the photo record exists before we invoice. The 365-Day Done Right Promise is not a courtesy; it is stamped on every job. And when you call (561) 354-3861, a live person answers, 24/7, because a window that won’t lock at 10 PM is not a voicemail situation.
FAQs
Independent service does not automatically void a CGI warranty, but using non-OEM parts or improper installation methods can. We document every part source and installation detail so you have a record if a warranty claim arises later. Call (561) 354-3861 and we will review your warranty status during the measured survey.
Repair is viable when the frame is square, the hardware is available, and the thermal performance loss is limited to the IGU. Full replacement makes sense when the frame has suffered water intrusion, the series is discontinued with no parts path, or you are upgrading from single-pane to impact-rated, energy-efficient construction. We make this determination during the measured survey and tell you which path costs less over ten years.
CGI’s bronze anodize has shifted slightly across production years, and coastal oxidation changes the apparent color. We bring a physical sample to the survey, compare it in daylight, and if the match is not acceptable, we quote both sashes in the opening so the pair reads consistently. The photo record shows you the sample against your existing frame before you approve the order.
IGU replacements in standard sizes require 10-14 business days for glass fabrication after survey approval; installation takes 2-3 hours per opening. Full unit replacements run 4-6 weeks including permit submission and inspection scheduling in West Palm Beach. We do not promise same-day completion on planned work; we promise a start date in writing and adherence to it.
Note whether the fog is between the glass panes (seal failure, IGU replacement needed) or on the interior surface (humidity control, not a window defect). Check the label inside the sash for the series name and manufacturing date. Photograph the fog pattern and any visible damage to the frame or hardware. Bring this to the survey; it saves diagnostic time and keeps the quote accurate. Call (561) 354-3861 to schedule.
Written by Sonia Raman, Owner, Sightline Windows & Doors West Palm Beach at Sightline Windows & Doors West Palm Beach, serving West Palm Beach and nearby areas.










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