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CGI Windows & Doors in Longwood, FL | TruePane Windows & Doors
We service CGI windows and doors across Longwood as an independent provider, not a manufacturer arm. The work we do here splits into two realities: standard CGI repair and replacement in Longwood’s 1970s-1990s subdivisions, and custom-milled historic-compliant work inside the 1870s-1880s National Register district. Both demand a crew that knows CGI’s product lines cold and understands Seminole County’s permit process. Call (954) 280-4413 for a free estimate, and we’ll tell you straight whether a repair or replacement makes sense for your house.
Why Longwood Residents Choose Us for CGI Service
We work on our Cgi services daily across Longwood’s historic district and its concrete-block ranch subdivisions. That daily repetition means we know which CGI series survive Seminole County’s humidity and UV, and which parts actually fail on our local aluminum and wood-clad units. When a homeowner off Wekiva Springs Road calls about a fogged CGI Estate slider, we already know the IGU seal likely delaminated from 50-plus inches of annual rain and relentless thermal cycling. When a homeowner in the historic district calls about a binding casement sash, we know humidity cycling in a wood-frame Victorian behaves differently than in a stucco ranch on SR 434.
Dale Kessler founded TruePane Windows & Doors in 2008 after spending two decades working glass and framing in South Florida’s coastal corridor. He can tell you which CGI components fail first and which hold up, because he’s replaced them in houses from 19th-century wood-frame to late-90s block. That experience is why we stock OEM-compatible parts for fast Longwood turnaround, and why we never upsell a full-frame replacement when an insert pocket install will restore a window for years.
Common CGI Windows & Doors Problems We Solve in Longwood
- Fogged dual-pane IGU seals on CGI Estate sliders: Longwood’s 50+ inches of annual rainfall and extreme thermal cycling delaminate dual-pane seals faster than in drier Sun Belt cities. We rebuild the sash with a new high-performance IGU rather than replacing the entire frame when the frame is sound.
- Oxidized aluminum frame finishes pitting at weep holes: Original CGI Contractor Series windows in Longwood’s 1970s-1990s subdivisions show chronic pitting at weep locations. Intense UV and heavy afternoon rain accelerate the oxidation. We machine-match aftermarket weep covers and restore the frame finish when replacement covers are discontinued.
- Warped or seized CGI casement sashes: In Longwood’s Victorian and Craftsman homes, humidity cycling expands and contracts wood framing around casement sashes. We re-shim, adjust, or replace hardware to restore operation without forcing the sash and cracking the frame.
- Failed weatherstripping on CGI Classic double-hungs: Summer thunderstorms in Longwood find every failed weatherstrip. Air and water intrusion at the meeting rail is a recurring call. We replace with reinforced weatherstripping spec’d to handle inland Florida humidity.
- Discontinued CGI hardware and balances: Older CGI lines in Longwood’s mid-century stock often need locks, balances, or hinges the manufacturer no longer stocks. We source genuine CGI parts when available and machine-match stainless steel replacements when they are not.
CGI Service in Longwood: What Local Conditions Mean for Your Equipment
Longwood is the only city in Seminole County where a standard off-the-shelf double-hung replacement window cannot match the original narrow-rail, true-divided-light profiles required by the city’s 1870s-1880s National Register Historic District preservation guidelines. What looks like a simple CGI swap in every neighboring city becomes a custom-order, weeks-long project inside the district boundaries. A homeowner on a historic street may assume their CGI Contractor Series window can be swapped like-for-like. It cannot. The replacement must meet Florida SHPO historic-preservation review, and the mullion and casing profiles must be milled to match the originals. That’s not a manufacturer line item. That’s a custom millwork order, and it’s why we quote these jobs side by side on paper so the homeowner sees the difference between a standard insert and a preservable, historically-compliant replacement.
Outside the district, Cgi in Casselberry and nearby areas faces a different reality. Longwood sits outside the High-Velocity Hurricane Zone but still falls under full Florida Product Approval requirements for every window and door replacement. A permit is required. That catches many homeowners off guard, especially those coming from states where window replacement is a handshake job. We pull permits, pass inspections, and register both warranty layers in writing before our truck leaves the driveway.
CGI Models & Products We Service in Longwood
We service the full CGI lineup a Longwood homeowner is likely to own: the Estate Collection, Classic Collection, Sentinel Series, and Contractor Series. Each line has its own failure profile in this climate. Estate sliders fog. Contractor Series aluminum pits. Classic double-hungs lose their weatherstripping. Sentinel frames hold up well but still need hardware and balance service after a decade or two. We use genuine CGI replacement parts when available, especially locks, balances, and weep covers. For discontinued lines, we machine-match aftermarket components like stainless steel hinges and reinforced weatherstripping to extend service life. We keep commonly needed parts stocked locally so Longwood service doesn’t stall on a shipment from out of state.
CGI Service Pricing in Longwood
Cgi service in Altamonte Springs and Longwood pricing depends on the failure and the line. Fogged IGU replacement on a CGI Estate slider typically runs $450-$750 for the rebuilt sash. Weatherstripping on a Classic double-hung is a smaller job, usually $125-$225 per window. Oxidized frame restoration and weep cover milling on Contractor Series windows varies by how many sashes are involved, often $200-$400 per unit. Custom historic-district millwork and full-frame replacement are quoted project by project, because no two 19th-century openings are identical.
Our free estimate includes a written line-item quote with both repair and replacement options side by side where relevant. No change orders after the fact. If the frame is solid, we’ll say so. If chronic seal failure means replacement costs less over time, we’ll tell you that too. Call (954) 280-4413 for an exact quote on your windows or doors.
Serving Longwood, FL - Our Local Coverage Area
We’re based in the Longwood area and know Cgi in Lake Mary and this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - CGI Windows & Doors in Longwood
Properties inside Longwood’s 1870s-1880s National Register Historic District fall under preservation review, and standard off-the-shelf double-hungs cannot match the original narrow-rail, true-divided-light mullion and casing profiles. Your replacement must be custom-milled to match, which changes the timeline and the cost. We handle that millwork order and the SHPO paperwork so the job passes review the first time. Call (954) 280-4413 for a free estimate on your specific openings.
Not automatically. Every window and door replacement in Longwood, including CGI units, must be permitted and bear Florida Product Approval documentation. We pull the permit, provide the product approval numbers, and pass the inspection. If a handyman quote doesn’t include permits, that’s a red flag in Seminole County. Call us at (954) 280-4413 and we’ll walk you through what the permit requires for your specific street.
That pitting is oxidation accelerated by Longwood’s combination of intense UV, heavy afternoon rain, and 50+ inches of annual rainfall. The weep holes trap moisture against untreated aluminum edges, and the finish fails there first. We restore the frame finish and machine-match weep covers where CGI no longer stocks them. For a free assessment of your frames, call (954) 280-4413.
Usually not to an existing non-impact frame. Impact-rated glass requires an impact-rated frame engineered to carry the load transfer. In an older CGI Contractor Series or Classic frame, adding impact glass without the matching frame voids the Florida Product Approval and the warranty. We’ll quote a proper impact-rated replacement and register both warranty layers in writing. Call (954) 280-4413 to see your options.
Longwood’s Historic District adds a preservation review layer that Lake Mary and Casselberry simply don’t have. Outside the district, the process looks like any Seminole County window permit. Inside it, every replacement must clear SHPO review with custom-milled profiles matching the originals. We coordinate both tracks. Call (954) 280-4413 and we’ll tell you which one your address falls under.
Service Areas Near Longwood
Beyond Longwood, our CGI crews cover Altamonte Springs, Lake Mary, Casselberry, and the Wekiva Springs Road corridor. We run more CGI units through CGI service in Loxahatchee Groves and CGI service in Madeira Beach than most shops, because coastal exposure changes how fast seals delaminate. For our full coverage footprint, see our Longwood service area page or contact us directly.
Book Your CGI Service in Longwood Today
Our tech replaced a fogged IGU in a CGI Estate sliding glass door on a 1980s concrete-block home off Wekiva Springs Road. The original dual-pane seal had delaminated after 20 years of Longwood’s afternoon thunderstorms and 50-inch rainfall; we rebuilt the sash with a new high-performance IGU and upgraded stainless steel rollers, restoring smooth operation and clear glass without replacing the whole frame. That’s the standard we bring to every CGI window and door in Longwood. Call (954) 280-4413 to schedule your free estimate. A live person answers, 24 hours a day, 7 days a week.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Longwood 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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