CGI Windows & Doors Service Nationwide | Sightline Windows & Doors Lantana

Why Lantana Homeowners Choose CGI Windows & Doors

We provide CGI Windows & Doors in Lantana, FL service, with technicians who carry OEM-spec hardware for CGI Sentinel, ProShield, and Series 6000 lines in their trucks. Our repairs are warranty-safe, our quotes are written before any work starts, and every job leaves a documented photo record under the Haven Standard we’ve followed since 2012. Call (561) 461-2062 to schedule your free estimate.

Call (561) 461-2062

CGI Windows & Doors has been a staple in coastal South Florida construction for decades, and Lantana’s concentration of 1950s-1970s homes presents a specific challenge: many of these properties are still fitted with original jalousie or single-pane aluminum units that cannot be repaired into code compliance. When Lantana owners upgrade to CGI impact-rated products, they’re choosing windows and doors engineered for Palm Beach County’s wind-borne debris region. But even quality CGI units face accelerated wear here. The town’s position on the Intracoastal Waterway, with the Atlantic less than a mile east, creates a salt-air corrosion environment that degrades hardware faster than inland communities like suburban Boynton Beach Cgi service areas. We’ve replaced CGI roller assemblies, balance shoes, and glazing gaskets on homes from Ocean Avenue to the Hypoluxo Island corridor - enough to know which failure patterns show up first in this zip code.

We are not affiliated with or authorized by CGI Windows & Doors. We are an independent service company that has worked on CGI products across Palm Beach County since they became common in local construction. That independence means we source parts based on what your opening needs, not on a manufacturer’s quota.

Why Trust Sightline Windows & Doors Lantana for Your CGI Windows & Doors?

Our technicians know the production changes that separate early CGI impact lines from current ones. We’ve worked on CGI Sentinel Series units with the older glazing-gasket profile and the revised design that followed. We can spot the difference between a Series 6000 horizontal roller from the mid-2000s and a current production unit by the track geometry and interlock detail. That kind of field knowledge comes from measuring and handling these products across hundreds of openings, not from reading a catalog.

Sonia Raman, who leads our operation, grew up in Los Angeles and learned to read a rough opening at Los Angeles Trade-Technical College before she ever drove on a South Florida freeway. She’s spent the better part of two decades measuring, ordering, and installing windows and doors across this region, with her crew logging work on homes along Lantana’s beachfront corridor that face salt air and hard summer storms every year. Sonia writes down the exact U-factor and impact rating of every unit before a contract is signed - numbers on the page, not promises in the air. The Haven Standard governs every job: Have it in writing, Arrive on schedule, Verified crews, Evidence on every job, No surprises. Haven Clause 3 means the technician at your door is background-checked, uniformed, and identified by license number before arrival.

We carry CGI-spec tandem rollers, balance shoes, glazing gaskets, and weatherstrip in our Lantana-area inventory. When your CGI unit needs a part, we don’t order it and make you wait two weeks. We pull it from stock, match it to the production year, and install it with the torque and adjustment that keeps the warranty intact.

Common CGI Windows & Doors Problems We Fix in Lantana

• Flattened or cracked tandem rollers on CGI horizontal roller and 3-lite sliding windows. The CGI Series 6000 horizontal roller and 3-lite slider use tandem roller assemblies that carry the full weight of impact-rated laminated glass sashes. In Lantana’s salt-air environment, these rollers flatten or crack under sustained load, causing grinding, jerky operation, and eventually complete immobility. We see this most often on east-facing sliders within a few blocks of the Intracoastal, where morning salt mist settles into the track and accelerates corrosion. The fix is a CGI-spec tandem roller replacement, track cleaning, and interlock adjustment - not lubricant sprayed on a failing assembly.
• Glazing gasket shrinkage and seal breakdown on CGI Sentinel impact windows. CGI Sentinel Series impact windows rely on a continuous glazing gasket to protect the laminated interlayer from moisture intrusion. After five to ten years of Lantana’s UV exposure and thermal cycling, these gaskets harden and shrink, creating gaps where water enters. The result is fogging between panes, delamination of the impact interlayer, and eventual IGU failure. We replace gaskets with OEM-spec profile material and verify the seal with a water-spray test before we leave.
• Balance shoe and spiral balance corrosion in CGI single and double hung units. CGI Sentinel single hung and double hung windows use spiral balance systems with polymer shoes that ride in the jamb liner. Salt air corrodes the spiral rod and swells the shoe, making sashes hard to raise or causing them to drop unexpectedly. In Lantana’s older CBS homes near the beachfront, we’ve found balance shoes seized solid after seven to eight years. We replace the full balance assembly with a CGI-compatible unit and verify sash retention at multiple height positions.
• Door frame and hinge-side water infiltration on CGI impact entry doors. CGI Impact Guard entry and French door systems depend on a properly integrated sill pan, threshold, and hinge-side weatherstrip to manage the water volume that hits a door during a Palm Beach County storm. When the sill pan drains clog or the weatherstrip compresses, water enters at the hinge jamb and shows up as swollen interior trim or dampness at the baseboard. We disassemble the threshold, inspect the sill pan drainage path, replace degraded weatherstrip with OEM-spec material, and re-bed the frame with proper sealant.
• Track oxidation and debris accumulation in CGI sliding door systems. Lantana’s beach sand carries salt and fine shell particulate that packs into sliding door tracks, combining with oxidized aluminum to form a grinding paste. This accelerates roller wear and damages the track surface itself. We see this on nearly every Lantana call within a half-mile of the ocean. Our process includes sash removal, track media-blasting or replacement depending on damage depth, and installation of marine-grade track inserts where the original geometry is compromised.

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CGI Parts & Our Repair-vs-Replace Approach

We use OEM-spec CGI replacement rollers, balances, gaskets, and weatherstrip whenever those parts are available, because impact-rated windows depend on matched hardware for their wind-load performance. A tandem roller with the wrong axle spacing or load rating will fail prematurely and can damage the track. A glazing gasket with an incorrect durometer won’t maintain seal pressure across temperature swings. We source from CGI-compatible suppliers with verified spec sheets, not from generic hardware bins.

When a CGI frame is still square, the glass unit is intact, and the hardware failure is isolated, a rebuild is the right call. We replace the failed component, test the assembly, and document the work. When the frame is racked from settlement or storm loading, the IGU has failed, or the door slab is delaminated, we tell owners plainly that replacement is the better investment. No repair that buys six months of operation is worth the labor cost in our view.

We stock CGI-spec parts locally for the Lantana market. Most common repairs - roller replacement, gasket renewal, balance assembly swap - are completed in one visit. Call (561) 461-2062 for a written quote before any work starts.

Our CGI Service Process - Step by Step

1. 1
   Measured diagnosis. We survey the opening with the tools we learned on: level, tape, and sightline gauge. For CGI units, we record frame squareness, sash operation force, glazing gasket condition, and hardware part numbers where visible. The measured survey is yours to keep.
2. 2
   Written scope and price. Haven Clause 1 means the measurement and the quote are the same document. We itemize parts, labor, and any replacement contingency, with the 365-Day Done Right Promise stamped on every line.
3. 3
   Repair or install with documented evidence. Our crew arrives uniformed, with license number confirmed. We use OEM-spec CGI parts, torque fasteners to spec, and photograph each stage: before condition, part installation, and final test. The photo record is standard, not an upsell.
4. 4
   Operational testing. Every CGI window is cycled ten times minimum. Every door is checked for latch engagement, weatherstrip compression, and sill pan drainage. We record operation force in pounds where the unit has a published spec.
5. 5
   Warranty documentation. The completed job leaves with a written warranty under the Haven Standard, the photo record, and our commitment: if it’s not done right, we make it right. Measure it right the first time. Everything after that is just paperwork.

CGI Products We Service & Install in Lantana

We work on the full CGI residential line: Sentinel Series impact-rated single hung and double hung windows; ProShield Series vinyl impact windows; Series 6000 horizontal roller and 3-lite sliding windows; and Impact Guard entry and French door systems. We carry stock hardware for Sentinel and Series 6000 units, including tandem rollers, balance assemblies, glazing gaskets, and weatherstrip profiles. For ProShield vinyl lines, we stock sash locks, keepers, and compression seals. Impact Guard door hardware - hinges, multi-point locks, and threshold components - is ordered by spec with three-day turnaround for items not in our Lantana inventory.

We also specify and install CGI products for full-frame Window Installation services in Lantana’s older homes, where jalousie or single-pane units must come out entirely to meet Palm Beach County impact requirements.

We Also Service These Brands

Our inventory covers eight manufacturer lines specified by performance tier and price range: PGT, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. Multi-brand capability means we don’t force a CGI solution where another manufacturer’s geometry or price point fits the opening better. We specify by what the opening requires.

FAQs - CGI Windows & Doors Service in Lantana

Book Your CGI Service in Lantana, FL

Call (561) 461-2062 to schedule your free estimate. A live person answers, 24/7. We’ll send a technician with a measured survey, a written price, and the parts to fix most common CGI failures in one visit. Every job carries the 365-Day Done Right Promise and leaves a documented photo record. Haven Clause 1: the measurement and the quote are the same document.

Written by Sonia Raman, Owner at Sightline Windows & Doors Lantana, serving Lantana since 2012.