Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Before
After
Before
After
Before
AfterWhy Kendall Homeowners Choose CGI Windows & Doors
We provide independent CGI Windows & Doors in Kendall, FL service for homeowners who need repairs, hardware replacement, or full unit swaps on existing CGI installations. Our technicians work on CGI products weekly in this market, so we know the specific roller profiles, gasket sizes, and frame behaviors these units develop after years in South Florida’s heat and humidity. Call (786) 321-3319 to schedule a measured survey and written estimate.
CGI Windows & Doors in The Crossings, FL and nearby areas has been a staple in Miami-Dade County’s High Velocity Hurricane Zone for decades, and their impact-rated units are common across Kendall’s 1970s-1990s concrete block homes. Many of these were installed in the post-Andrew replacement wave of the mid-to-late 1990s. That first generation of impact windows is now 25-30 years old. The rollers are flat-spotting, the sealed glass units are fogging, and the vinyl frames are showing corner fatigue. We see this pattern repeatedly in subdivisions along Kendall Drive and Killian Drive.
We’re not affiliated with or authorized by CGI. We’re an independent service provider who works on their products every day in Kendall. That independence means we can source the right part for the actual problem, whether it’s an OEM-equivalent roller set or a quality aftermarket gasket that matches CGI’s profile exactly. We don’t push new units when a repair will last, and we don’t patch what should be replaced.
Sonia Raman, our owner, grew up in Miami and trained in building construction technology at Miami Dade College before spending nearly two decades in the field. Her crew has been measuring and setting frames in Kendall for years. Most recently, they finished a full impact-window retrofit on a block of townhomes near Dadeland Mall. She insists on a dry-fit before any sealant touches glass. That habit has saved more than a few jobs from a costly redo.
Why Trust Sightline Windows & Doors Kendall for Your CGI Windows & Doors?
Our technicians know CGI hardware by sight. The roller assemblies in CGI horizontal rollers and sliding units have a specific axle spacing and wheel diameter that generic replacements don’t match. We’ve learned which aftermarket rollers hold up to Kendall’s salt-air humidity and which ones seize within two seasons. We stock the ones that work.
We also understand the warranty implications. CGI’s product warranty covers manufacturing defects, not wear items or installation issues. Our service doesn’t void your existing CGI warranty because we don’t alter the frame structure or use incompatible glass. When we replace a sealed IGU or install new weatherstripping, we’re restoring the unit to its original function, not modifying it. If your CGI windows are still under warranty for the frame or glass, we’ll flag that and advise you on whether a factory claim makes more sense than our repair.
Every job follows the Haven Standard we’ve operated under since 2012. Haven Clause 1: the price is written before any work starts. Haven Clause 3: verified crews - background-checked, uniformed technicians with license numbers you can verify. Haven Clause 4: evidence on every job, meaning you get a documented photo record of the work. And the 365-Day Done Right Promise means if something isn’t right, we make it right. Not as a favor. As a requirement.
Sonia’s approach is straightforward: “Measure once, document it, then cut.” No guesswork. No change orders. The measured survey you keep and the written quote are the same document.
Common CGI Windows & Doors Problems We Fix in Kendall
- Rollers flatten or bind in CGI horizontal roller and sliding units. The original nylon or polymer rollers in CGI Impact Series horizontal rollers and sliding glass doors develop flat spots over years of use, especially in Kendall homes where the units are opened daily for ventilation. Once the roller loses its round profile, the sash drags, jumps the track, or requires two hands to move. We see this most often on units facing west, where afternoon sun accelerates material fatigue. The fix is precise: pull the sash, measure the axle center and wheel diameter, and install a stainless or hardened aftermarket roller that matches the original travel height. We stock these in our Kendall warehouse.
- Sealed insulated glass units (IGUs) develop seal failure with hazy moisture between panes. CGI impact windows use dual-pane IGUs with a sealed airspace and desiccant strip. After 15-25 years of thermal cycling in Kendall’s subtropical climate, the edge seal degrades and atmospheric moisture enters. You notice it first as a faint haze after cool mornings, then as permanent fogging. The glass itself isn’t broken; the seal is. We can replace the IGU with an OEM-equivalent unit that carries the same Miami-Dade NOA certification, without touching the frame. This is usually half the cost of full unit replacement.
- Vinyl frames and sashes warp or crack at corners in direct-sun exposures. CGI’s Estate and Classic vinyl lines are solid products, but South Florida sun is relentless. Corner welds on vinyl sashes stress-crack after years of thermal expansion, and dark-colored frames absorb enough heat to soften and sag slightly. The result is air infiltration, water intrusion at the sill, or visible gaps when the window is closed. Small corner cracks can sometimes be stabilized with structural epoxy and reinforcement, but if the sash has distorted enough that the glazing gasket no longer seats properly, replacement is the honest call. We’ll show you the gap with a feeler gauge and explain why.
- Impact glazing gaskets and weatherstripping dry out and shrink, letting wind-driven rain past the sill and jamb. CGI impact units rely on continuous compression gaskets to maintain both the air/water seal and the structural integrity of the impact glazing system. In Kendall’s humidity and UV exposure, these gaskets harden and lose elasticity in 10-15 years. Once the compression drops, afternoon thunderstorms push water through the sill track and into the wall. We stock replacement gasket profiles that match CGI’s original specifications, including the dense neoprene sill gaskets and the fin-seal weatherstripping on horizontal rollers. After installation, we run a hose test to verify.
- Lock mechanisms and tilt latches fatigue on single-hung and double-hung CGI Impact Series units. The constant up-and-down motion of tilt latches and the torque on sash locks gradually wear the zinc alloy castings. In Kendall’s salt-air environment, corrosion accelerates the process. A lock that feels gritty or a tilt latch that won’t engage fully is a security and weather-seal issue. We carry direct-replacement hardware that matches CGI’s mounting patterns and keeper locations, so the sash still tilts in for cleaning and locks securely when closed.
Before
AfterCGI Parts & Our Repair-vs-Replace Approach
We stock quality aftermarket rollers, locks, gaskets, and balances that match CGI profiles from our Kendall warehouse. For glass replacement, we use OEM or OEM-equivalent IGUs that carry the required Miami-Dade NOA certification. We don’t source generic glass that lacks the NOA number; Miami-Dade inspectors check that number against the approved product list, and a mismatch fails inspection every time.
Our repair-vs-replace decision is straightforward. If the frame is structurally sound and the failure is in a serviceable component - roller, gasket, IGU, lock - we repair. If the vinyl sash has distorted beyond gasket recovery, if the frame corners have separated, or if repeated repairs on the same unit are becoming uneconomical, we’ll tell you that replacement is the better long-term fix. No repeated band-aid work. The written quote reflects what we would do on our own property.
Call (786) 321-3319 for a free second opinion on any written estimate you’ve already received. We’ll review the scope and tell you if we agree with the approach.
Our CGI Service Process - Step by Step
- 1
Diagnosis with measured survey. We inspect the unit, identify the CGI series and approximate age, and document the failure with photos and measurements. You keep the survey. We note frame squareness, sash travel, gasket compression, and any structural issues. This is the document the quote is built from.
- 2
Written quote before any work starts. Haven Clause 1. The price is line-itemed: parts, labor, any glass or hardware. No change orders. If we find additional issues during the repair, the quoted scope covers it or we stop and discuss.
- 3
Repair or installation with verified crew. Our technician arrives uniformed, with license number provided in advance. For CGI units, we use the specific hardware and gasket profiles that match your series. Dry-fit before sealant. Photo documentation at each stage.
- 4
Testing and evidence. We operate the unit through full travel, check lock engagement, and run a water hose test on any unit where gaskets or sills were disturbed. You receive a documented photo record of the completed work.
- 5
Warranty registration. The 365-Day Done Right Promise is stamped on the job record. If the repair doesn’t hold, we return and make it right. The warranty is written, not verbal.
CGI Products We Service & Install in Kendall
We work on the full range of CGI impact and non-impact products common in Kendall homes:
- CGI Impact Series single-hung and double-hung windows
- CGI Impact Series horizontal roller windows
- CGI Accordion impact windows
- CGI Estate and Classic vinyl window lines
- CGI impact sliding glass doors
- CGI impact French doors
We stock rollers, gaskets, locks, and hardware for these series locally. For full unit replacement, we specify by what the opening requires - impact rating, design pressure, U-factor, and SHGC - not by what happens to be in a warehouse. Every replacement unit must carry a current Miami-Dade NOA for Kendall’s HVHZ location.
We Also Service These Brands
Our technicians are fluent in eight manufacturer lines: PGT, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux, in addition to CGI Windows & Doors in Pinecrest, FL products. We specify by performance tier and price range, not by margin. If your home has a mix of brands from previous repairs or additions, we can service them all without calling multiple contractors.
FAQs - CGI Windows & Doors Service in Kendall
No. We are an independent, non-authorized service provider. We work on CGI products every day in Kendall and know their hardware and failure patterns, but we are not endorsed by or affiliated with CGI Windows & Doors. This independence lets us source the right part for the actual problem, whether OEM-equivalent or quality aftermarket, without brand-mandated restrictions.
We use OEM or OEM-equivalent parts where they are the best match for the repair, and quality aftermarket components where they perform as well or better. For CGI roller assemblies and gaskets, we often use aftermarket units that match the original profile but use upgraded materials - stainless axles, denser neoprene - because they last longer in Kendall’s humidity. For glass replacement, we use NOA-certified IGUs that match CGI’s specifications exactly. We explain what we’re using and why before any work starts.
Most hardware repairs - roller replacement, gasket installation, lock swaps - are completed in one visit of two to four hours. IGU replacement requires ordering the glass unit to your exact sash dimensions, typically seven to fourteen days, then a one-hour installation visit. Full unit replacement depends on permit timing; Miami-Dade requires licensed contractor permits for Window Installation services like window and door swaps, and inspections are scheduled after installation. We’ll give you a written timeline with your quote. Call (786) 321-3319 to schedule.
We service CGI Impact Series single-hung, double-hung, and horizontal roller windows; CGI Accordion impact windows; CGI Estate and Classic vinyl lines; and CGI impact sliding glass doors and French doors. If you’re unsure which series you have, we can identify it from photos or during the measured survey.
Our repairs do not void CGI’s manufacturing warranty because we do not alter frame structures or use incompatible glass. CGI’s warranty covers manufacturing defects in materials and workmanship, not wear items like rollers or gaskets. If your unit has a valid manufacturing defect claim, we’ll point that out and advise whether factory service is your better option. Our independence works in your favor here - we have no incentive to steer you away from a valid warranty claim.
Hardware repairs - roller replacement, gasket installation, lock repair - typically range from $180 to $450 per unit depending on access and component count. IGU replacement in an existing CGI frame runs $340 to $680 per sash. Full unit replacement, including permit and inspection, starts around $1,200 per opening for standard sizes and varies with impact rating, size, and installation complexity. Every quote is line-itemed and written before work starts. Call (786) 321-3319 for an exact quote - estimates are free.
No. A properly functioning CGI horizontal roller or sliding unit should move with light finger pressure. If you’re using two hands, shoulder, or hip to get the sash moving, the rollers have likely flat-spotted or the track has accumulated debris and corrosion. This is one of the most common calls we get in Kendall, and it’s fixable without replacing the whole unit.
Yes, in most cases. The fog is moisture inside the sealed IGU, which means the edge seal has failed. The frame and sash are usually fine. We measure the glass unit, order an OEM-equivalent IGU with matching NOA certification, and swap it into your existing sash. You keep the original frame color, hardware, and installation integrity. This is typically half the cost of full unit replacement.
We use the part that solves the problem correctly. For some components, that’s an OEM or OEM-equivalent unit. For others, like rollers and certain gaskets, we use quality aftermarket parts that match CGI profiles but upgrade the material for South Florida conditions. We document what we’re installing and why. If you specifically require factory-original parts, we can source them; lead times are typically longer and costs higher.
Small stress cracks at corner welds can sometimes be stabilized with structural epoxy and internal reinforcement, which extends service life several years. If the crack has propagated into the sash body or if the sash has distorted enough that the glazing gasket no longer seals, replacement is the honest recommendation. We’ll show you the gap measurement and explain which category your unit falls into.
Check three things: the impact glazing laminate should be intact with no spiderwebbing or delamination; the frame should be securely fastened to the rough opening with no visible gaps or corrosion; and the sash should lock fully into the frame with compression on all gaskets. If any of these are compromised - cracked laminate, loose frame, or gasket failure - the unit may not perform to its design pressure rating. We can inspect and document this during a measured survey. Call (786) 321-3319 to schedule.
Book Your CGI Service in Kendall, FL
Call (786) 321-3319 to schedule your free estimate. We’ll send a verified technician to measure, diagnose, and provide a written line-item quote before any work starts. If you already have a written estimate from another contractor, bring it - we’ll review it at no charge. Every job leaves a documented photo record and carries the 365-Day Done Right Promise. Haven Clause 1: the price you see is the price you pay.
Written by Sonia Raman, Owner at Sightline Windows & Doors Kendall, serving Kendall since 2012.