Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Why Miami Homeowners Choose CGI Windows & Doors
TruePane Windows & Doors provides independent Miami Cgi service for windows and doors repair, service, and replacement throughout Miami, FL. We are not a CGI dealer and we are not authorized by CGI, but our technicians have spent years rebuilding these exact frames after Miami’s salt air and storm cycles have done their work. That field experience means we know which welds, balances, and rollers fail first on CGI products in this climate, and we stock the parts to fix them right. Call (561) 489-4036 for a free estimate on any CGI window or door in Miami.

Miami-Dade County enforces the most stringent hurricane-impact window standard in the United States, and CGI has built its reputation on meeting that bar. Homeowners in Kendall, Cgi service in Hialeah, Little Havana, and along the Brickell corridor own CGI Sentinel Series impact windows, Estate Collection single hungs and horizontal rollers, and Targa Series casements because these products carry Miami-Dade Notice of Acceptance ratings. When those windows and doors need service, the work has to respect both the product engineering and the local code. That is the work we do.
Why Trust TruePane Windows & Doors for Your CGI Windows & Doors?
Our lead on CGI work is Dale Kessler, a second-generation glazier who learned the trade formally at Columbus State Community College and spent close to two decades on residential and commercial installs before bringing his crew to South Florida. Dale reads a rough opening carefully before he ever orders glass, and he is straight with customers about lead times instead of telling them what they want to hear. Measure twice, order once, and put everything in writing.
On CGI-specific service, that means we do not guess at a part number or substitute a balance that was never rated for a given sash weight. We measure the opening twice, confirm the exact CGI series and glass package, and order the OEM component when it is available. Background-checked, uniformed technicians do the work in your home the way they would in their own mother’s. Every CGI repair and install is covered by our 90-Day Done Right Promise and The Keystone Standard: both warranty layers registered in writing, durations stated, before the truck leaves the driveway.
We are an authorized installer for more than a dozen manufacturer lines including Andersen, Pella, Marvin, Milgard, PGT, and CGI, and we have been serving local communities for over 42 years through Dale’s heritage of craft. We quote manufacturer lines side by side on paper so you see exactly what you are buying. A live person answers our phone 24 hours a day, 7 days a week. No voicemail tree, no regional call center.
Common CGI Windows & Doors Problems We Fix in Miami
CGI builds a stout product, but Cgi in Miami Beach and across Miami is a hard place to be a window. Here are the failure patterns we actually see on CGI units in this market, not the generic list you will read on a manufacturer brochure.
- Warped vinyl sashes on south-facing Estate Collection windows. Direct Miami sun on a west or south elevation will push surface temperatures on a dark vinyl sash past 140 degrees repeatedly. Over several seasons, the extrusion can relax and bow slightly, which throws off the interlock alignment and lets air leak at the meeting rail. We see this most often on CGI Estate Collection single hungs and horizontal rollers in Kendall and Westchester where there is no shade. The fix is usually a sash replacement with the correct glass package, not a whole-frame tear-out.
- Corroded hinge pins on Sentinel Series casements. The Sentinel casement is an impact-rated workhorse, but its stainless hinge pins live in direct contact with salt-laden air off Biscayne Bay and the Atlantic. We regularly replace seized or pitted hinge sets on Sentinel units in Brickell, Edgewater, and Miami Beach. If left too long, a seized hinge will tear the sash corner weld when forced. We use OEM CGI hinge assemblies or mill aftermarket stainless sets when OEM lead times stretch past six weeks.
- Failed balance springs in Estate single hungs causing sudden drops. A single hung window that slams shut when you release it is not worn hardware to live with. It is a failed or disengaged balance spring, and it is dangerous, especially for an older homeowner. On CGI Estate single hungs, we replace balances in pairs so the sash rides even, and we set the tension to the exact sash weight, which changes if the original single-pane glass was upgraded to laminated impact glass at some point.
- Fogged insulated glass units in older Sentinel fixed windows. Year-round Miami humidity pushing against aggressively air-conditioned interiors stresses IGU seals on any window, and CGI units are no exception. On older Sentinel fixed picture windows, we see seal failure show up as fogging or a milky haze between the panes. Once the desiccant inside the spacer is saturated, the only real fix is an IGU replacement, ideally with the same laminated impact glass CGI originally supplied so the NOA rating stays intact.
- Grooved tracks and seized rollers on CGI sliding doors and horizontal rollers. Coral Gables, Coconut Grove, and Key Biscayne homes sit close enough to the water that stainless roller assemblies seize from salt and grit accumulation within a few years. The rollers stop turning, then the door drags, then the track grooves. Last month our tech rebuilt a pair of CGI Sentinel impact sliders in a Coral Gables condo. The original stainless rollers had seized from years of ocean air, and the tracks were grooved. We sourced new CGI OEM roller assemblies, polished the tracks back to smooth, and reset the interlock alignment so the panels closed flush without dragging.
CGI Parts & Our Repair-vs-Replace Approach
We stock the CGI components that fail most often in Miami: OEM balances for Estate single hungs, roller assemblies for Sentinel sliders and Estate horizontal rollers, weatherstripping profiles, and hinge sets for Targa and Sentinel casements. When an OEM CGI part is available, we use it. When OEM lead times push past six weeks, we will tell you, and we will offer an aftermarket option milled to the same spec. No hiding, no silent substitution.
Our repair-vs-replace call is honest. A CGI frame under 15 years old with one failed component is a repair. A CGI frame over 20 years old with multiple failed corner welds, a warped sash, and a fogged IGU is a replace, and we will say so plainly. Patching a frame that has already lost its structural integrity in a Miami-Dade wind zone is not doing you any favors. Call (561) 489-4036 and we will give you a straight answer, in writing, either way.
Our CGI Service Process - Step by Step
Every CGI job in Miami follows the same sequence, whether it is a balance replacement or a full impact window install.
- 1
Diagnosis. A uniformed tech inspects the unit, measures the opening, confirms the CGI series and glass package, and identifies exactly what failed and why. We write it down.
- 2
Repair or install. We use OEM CGI parts when available, or a milled aftermarket equivalent when lead times force it. Every opening is measured twice before any glass is ordered. On full replacements, we anchor into the existing Miami CBS concrete block appropriately, because most of these homes are 1950s through 1980s construction with original frames set directly in the block.
- 3
Testing. We operate the window or door through its full range, check interlock alignment, confirm the balance tension holds the sash at mid-travel, and verify seals sit flush. If the pane is not true, the job is not done.
- 4
Warranty registration. Before the truck leaves the driveway, both manufacturer warranty layers are registered in writing with durations stated. Our 90-Day Done Right Promise applies to every CGI repair and install we perform in Miami.
CGI Products We Service & Install in Miami
Our crew works on the full CGI residential line we encounter across Miami, including CGI Sentinel Series Impact Windows services, Estate Collection single hung and horizontal roller windows, and Targa Series casement windows. We service fixed picture units, operable casements, single and double hungs, and sliding doors. Locally we stock the OEM balances, roller assemblies, weatherstripping, and hinge hardware for the most common CGI series in Miami-Dade, which keeps most repairs to a single visit. For full replacements, we quote the correct NOA-rated CGI glass package and frame profile for your opening and your elevation.
We Also Service These Brands
CGI is one strong line among many we work with. TruePane Windows & Doors also services and installs PGT, CWS, ES Windows, and ECO Window Systems products, plus Andersen, Pella, Marvin, Milgard, and Jeld-Wen. That breadth matters when a homeowner is deciding between a CGI repair and a different platform for a full replacement, because we can quote both options side by side without a sales rep pushing one brand.
FAQs - CGI Windows & Doors Service in Miami
No. A scratch in the laminated glass surface does not compromise the impact rating of a CGI window, because the structural strength is in the laminate interlayer, not the outer glass skin. If the scratch is deep enough to catch a fingernail, it can be polished out in many cases, or the outer lite can sometimes be replaced while preserving the impact-rated laminated unit. Call (561) 489-4036 and we will assess it honestly.
That is a failed or disengaged balance spring, and it is the most common CGI Estate single hung failure we see in Miami. The spring that counterbalances the sash weight breaks or detaches, and gravity takes over. We replace balances in pairs, set the tension to the exact sash weight, and test at mid-travel before we consider the job done. A slamming window is a finger injury waiting to happen, so we treat this as a priority repair.
In most cases, no. A fixed picture unit has a different frame profile, sill design, and structural anchoring than an operable casement or single hung, and converting one to the other is not a field retrofit. The honest fix is to replace the fixed unit with the correct operable CGI impact window for that opening, which we can quote and install. Call (561) 489-4036 for a written estimate.
Hairline cracks at the corner welds of a vinyl sash are an early warning sign of frame fatigue, usually from repeated thermal cycling on a south or west facing Miami elevation. They may not leak today, but they will widen, and in a wind-driven rain event they become a water intrusion point. The repair is a sash replacement, not a patch. If the frame is over 20 years old and multiple welds are showing cracks, we will tell you replacement is the better money.
Salt air and humidity are the usual culprits. The vinyl track gets caked with fine salt and dust, the weatherstripping swells, and the balance springs work harder until they fatigue. We clean and lubricate the track, replace the weatherstripping if it has lost its profile, and test the balances under load. In most cases the window lifts easily again without any parts replacement. Call (561) 489-4036 and we will schedule the repair.
It depends on the failure. A balance spring replacement on an Estate single hung typically runs in the $180 to $320 range, a roller assembly rebuild on a Sentinel slider is usually $220 to $400 per panel, and a full IGU replacement varies with the glass package and size. We give written line-item quotes before any work starts, and our pricing is fixed with no change orders. Call (561) 489-4036 for an exact quote on your CGI unit, and ask about our $50 Off Any Repair Over $250 standing offer.
Book Your CGI Service in Miami, FL
If your CGI windows or doors are showing any of the failure patterns above, call TruePane Windows & Doors at (561) 489-4036. A live person answers, we schedule a diagnostic visit, and we give you a written quote before any work starts. Free estimates on all CGI service and replacement in Miami. We stand behind it.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Miami since 2008.
Six Reasons Homeowners Choose TruePane 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.










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