Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
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AfterFast, Reliable Window Installation Across Longwood
Window installation in Longwood runs $450-$1,400 per opening for standard replacement units, with full-home projects in the Historic District typically landing between $9,000 and $22,000 depending on sash count and preservation requirements. We serve every Longwood neighborhood, from the Victorian streets around Church Avenue to the 1980s concrete-block subdivisions off Wekiva Springs Road. Our crews know which homes need Florida SHPO review before the first measurement and which just need a straight swap. Call (954) 280-4413 to schedule a free estimate with someone who actually knows Longwood’s housing stock.
Why TruePane Windows & Doors Is Longwood’s Preferred Window Installation Company
TruePane Windows & Doors was founded by second-generation glazier Dale Kessler, and the standard he set in 2008 hasn’t moved: if the pane is not true, the job is not done. Longwood homeowners call us because the work holds up under Seminole County’s rainfall and UV load, and because we’re still answering the phone years after the install. The Window Installation work we do in Longwood is covered by the Done Right Promise and The Keystone Standard, which means both manufacturer warranty layers are registered in writing before our truck leaves your driveway. No paperwork fights. No arguing about what was promised.
Our technicians are background-checked, uniformed, and trained as apprentices into journeymen. They measure every opening twice. They quote manufacturer lines side by side on paper so you can see exactly what you’re buying. And we act like a company that plans to be in Longwood in thirty years because that’s precisely the plan. A live person answers our phone 24 hours a day, seven days a week, not a voicemail tree and not a regional call center.
Our Window Installation Services in Longwood
We install every window type common to Longwood homes, and a few that aren’t common anywhere else. Here’s what we handle most often in this city.
Single & Double Hung Windows
The workhorse of Longwood’s older wood-frame houses. In the Historic District, replacement double-hungs frequently require custom-milled rails and true-divided-light profiles to match original 19th-century mullion patterns. We coordinate directly with preservation architects and Florida SHPO reviewers so the window passes inspection the first time.
Sliding Windows
The 1970s through 1990s concrete-block homes along SR 434 and Wekiva Springs Road are full of original aluminum sliders that have oxidized into dull gray frames with failed seals. We replace them with modern thermally broken frames, often in CGI or ES Windows lines, sized to the existing rough opening so the stucco work stays minimal.
Fixed & Picture Windows
Longwood’s ranch and split-level homes often have large fixed glass in living rooms facing the street or the yard. These openings take the brunt of afternoon UV and Florida’s 50-plus inches of annual rainfall. We set the insulated glass units so the seal load is evenly distributed, which is the difference between a picture window that fogs in four years and one that stays clear for fifteen.
Casement Windows
For Longwood homeowners dealing with crank mechanisms that have seized from humidity and disuse, we replace both sash and hardware. Our standard recommendation is a multi-point locking casement with stainless hardware, which holds up better in Central Florida’s wet season than the original zinc-plated parts.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Longwood
TruePane is an authorized installer for more than a dozen manufacturer lines, including, PGT, CGI, and ES Windows. For Longwood’s climate, we frequently quote CGI and ES Windows impact-rated lines and ECO Window Systems for the 1970s-era concrete-block homes where thermal performance matters most. Because we’re authorized across these lines, warranty registration isn’t a question mark. It’s filled out in writing before our truck leaves the driveway.
Common Window Installation Problems We See in Longwood Homes
- Historic District homeowners get failed preservation review. Off-the-shelf double-hung units with wide vinyl rails don’t match the original narrow-rail profiles required in the National Register-listed district. The corrective custom order adds weeks and thousands of dollars that a proper first pass would have avoided.
- Original aluminum sliders with fogged glass and oxidized frames. Intense UV and 50-plus inches of rain per year kill dual-pane IGU seals and aluminum finishes faster in Longwood than most homeowners expect. This is our single most common service call in the SR 434 corridor.
- Non-approved windows fail Seminole County inspection. Florida Product Approval is mandatory for every replacement window in Longwood, even outside the High-Velocity Hurricane Zone. Contractors who don’t pull permits or install non-approved units leave the homeowner holding the failed inspection and the redo cost.
- Historic wood frames with hidden rot at the sill and jamb. Longwood’s oldest wood-frame homes hide water damage behind intact-looking casing. We probe every opening before quoting, because discovering rot mid-install is how a one-day job becomes a one-week job.
Pricing for Window Installation in Longwood, FL
A standard single or double hung replacement in a Longwood concrete-block home runs $450-$850 per opening, installed. Sliding windows in the same housing stock run $550-$1,100 per opening. Casement windows typically run $800-$1,400 each. Fixed and picture windows run $400-$900 per opening depending on glass package. In the Historic District, custom-milled true-divided-light double hungs run $1,200-$2,400 per opening, with lead times set by the mill shop’s schedule, not by us.
We write fixed pricing before ordering anything. No change orders, no surprise line items. Call (954) 280-4413 for a free estimate with exact numbers on paper.
We Also Serve Cities Near Longwood
TruePane serves Longwood and the surrounding Seminole County communities, including Lake Mary, Altamonte Springs, Casselberry, and Winter Springs. The same crews, the same Keystone Standard, the same written warranty registration before we leave the driveway.
Serving Longwood, FL - Our Local Coverage Area
We’re based in the Longwood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Window Installation in Longwood
Yes, if your property falls within the National Register-listed boundary. Replacement windows there require Florida SHPO historic-preservation review, and the replacement units must match the original rail profiles, muntin patterns, and casing dimensions. We handle the submission and coordinate with your preservation architect. Call (954) 280-4413 if you’re not sure whether your home is inside the district.
Your original aluminum windows are single-pane or dual-pane with failed seals from years of UV and thermal cycling. Intense Central Florida sun and 50-plus inches of annual rain break down IGU seals and weatherstripping noticeably faster than in drier climates. The fix is a full replacement with thermally broken frames and modern insulated glass units.
Yes. Every replacement window in Longwood, including homes outside the High-Velocity Hurricane Zone, must carry Florida Product Approval. The permit process requires it, and Seminole County inspections will fail non-approved units. We only install approved product, and we pull the permit on every job.
We custom-mill the sash, rails, and muntin profiles to match the existing 19th-century millwork, then fit low-E insulated glass units with argon fill into those frames. In Longwood’s Historic District, our crew replaced original 1880s double-hung sashes on Church Avenue exactly this way, working alongside the homeowner’s preservation architect and passing Florida SHPO review on the first submittal.
A factory-applied, multi-coat polyurethane or marine-grade alkyd enamel holds up best on exterior wood in Longwood. We specify a finish system, not a single coat, because the combination of humidity, rainfall, and UV in Seminole County will peel common latex paint within a few seasons. Call (954) 280-4413 for exact finish specifications on your project.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Longwood and surrounding Seminole County communities.
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.