Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Impact Windows & Doors Across Longwood
Impact window and door replacement in Longwood, FL typically runs $900-$2,800 per opening installed, with whole-home retrofits on 1970s-1990s ranch homes landing between $18,000 and $45,000 depending on opening count and product line. Most Longwood jobs clear permitting in 5-10 business days, and TruePane completes standard single-opening installs in one visit. Call (954) 280-4413 to schedule a free estimate, and a live person answers that line 24 hours a day, every day of the week.
Longwood carries a documentation burden most Seminole County homeowners don’t see coming. Every replacement window and door here requires Florida Product Approval numbers, a permit, and a final wind-load inspection, and if the property sits inside the National Register Historic District, Florida SHPO review enters the stack as well. We know which openings in Longwood trigger which reviews because we’ve done this work here for years. That local familiarity means your quote includes the compliance steps the job actually needs, not a surprise add-on two weeks before install.
Why TruePane Windows & Doors Is Longwood’s Preferred Impact Windows & Doors Company
TruePane Windows & Doors was founded in 2008 by second-generation glazier Dale Kessler on a rule that still sits on the shop whiteboard: if the pane is not true, the job is not done. We are not a franchise playbook and we are not the cheapest bid in the room. We are the company Longwood homeowners call when they want the permit pulled, the product approval documented, both manufacturer warranty layers registered in writing before the truck leaves the driveway, and a Done Right Promise behind every install.
Our Longwood customers deal directly with background-checked, uniformed technicians who measure every opening twice and quote manufacturer lines side by side on paper, so you see exactly what you’re buying and what it costs before you sign anything. We carry workmanship guarantees in writing, and if something isn’t done right, we make it right with no paperwork fights and no arguing. Dispatch and scheduling coordinate from our South FL office, and our crews serve Longwood locally with a response time that respects your calendar, not a regional call center’s script.
Most of the calls we take from Longwood start the same way: a homeowner in a 1980s ranch off Wekiva Springs Road is staring at a fogged sliding glass door, or someone in the Historic District just learned their replacement windows need custom milled profiles. We know the housing stock here, we know the code path, and we know which manufacturer lines carry products that actually clear local review. That knowledge is the difference between a quote that passes inspection and a job that stalls at the permit counter.
Our Impact Windows & Doors Services in Longwood
Hurricane Impact Windows
Longwood sits outside the High-Velocity Hurricane Zone, but every replacement window still requires full Florida Product Approval documentation. We install impact-rated single-hung, double-hung, casement, and picture units from CGI, CWS, and ES Windows, with laminated glass and reinforced frames that meet Seminole County wind-load requirements. For Historic District properties, we source true-divided-light profiles that match 19th-century mullion spacing so the units clear SHPO review without stalling.
A typical impact window retrofit in Longwood runs $900-$2,200 per opening, installed, including the permit and final inspection coordination. That range covers mid-grade aluminum and vinyl impact lines. Custom historic-profile windows land higher because the millwork and glazing are not off-the-shelf products.

Impact Sliding Glass Doors
Original aluminum sliders on Longwood’s 1970s-1990s concrete-block homes fail in predictable ways: the insulated glass seals break down, argon escapes, and the oxidized frames fail wind-load and water infiltration tests that Longwood permits require. We replace those with impact-rated sliding doors using fusion-welded frames, low-E laminated glass, and full perimeter flashing tape that actually sheds water instead of trapping it behind the jamb.
Impact sliding glass door replacement in Longwood typically runs $2,400-$6,500 installed, depending on panel count and width. The range accounts for standard 6-foot and 8-foot openings; wider multi-panel configurations land at the top of that band.

Impact Entry & French Doors
Entry doors in Longwood take the brunt of afternoon UV and summer humidity cycles, and a binding door in July is usually a sign the frame has moved or the seal has failed. Our Impact Windows & Doors team installs impact-rated single and double entry units, plus French doors, with reinforced jambs, proper sill pan flashing, and hinges rated for the added weight of laminated glass.
Budget $1,800-$5,000 for a standard impact entry door in Longwood, installed. French door configurations and custom sizes run higher, and properties in the Historic District typically require custom casing profiles to match the original trim.

Impact Garage Doors
A garage opening facing the street is a weak point in wind events, and in Longwood’s older subdivisions, many homeowners still have non-rated steel doors held by tracks bolted loosely into the jamb. We install impact-rated garage doors with reinforced track assemblies and bracing, sized to the opening and tied into the structure properly. Most Longwood installs complete in one day, with the wind-load documentation included for the insurance file.

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
We stock and install impact products from CGI, CWS, and ECO Window Systems, among more than a dozen manufacturer lines. We service and replace existing PGT, ES Windows, and Andersen impact units as well. Because we carry local parts inventory for the lines Longwood homes most commonly have in place, typical service and warranty work moves on a shorter timeline than a shop that has to order every gasket and roller from a distributor. We quote manufacturer lines side by side on paper so you can see the price difference, the glass package difference, and the warranty difference in black and white before you decide.
Common Impact Windows & Doors Problems We See in Longwood Homes
- Fogged or failed insulated glass units - Longwood’s 50+ inches of annual rainfall and extreme thermal cycling break down dual-pane seals faster than drier Sun Belt climates. The argon leaks out, condensation builds between the panes, and the U-factor collapses. Replacement with properly specified impact units fixes the condensation at the glass package level, not with a stopgap defogging treatment.
- Oxidized aluminum frames on original sliders - Homes built through the 1970s-1990s along SR 434 and Wekiva Springs Road commonly still carry single-pane aluminum sliders that predate Florida’s post-2002 building code. These frames fail wind-load and water infiltration tests during permit review, which means a simple swap becomes a full impact-rated replacement.
- Historic District profile mismatches - Contractors working in Longwood’s Historic District regularly discover that standard off-the-shelf double-hung replacement windows cannot match the original narrow-rail, true-divided-light profiles required by preservation guidelines. Jobs that look like simple swaps in every other Seminole County city become custom-order, weeks-long projects the moment a property falls within the historic boundary.
- Water trapped behind mis-flashed jambs - Impact units installed without full perimeter flashing tape trap rainwater behind the frame, and in Longwood’s rainfall profile that means wood rot and mold that only surfaces after storm season. We see this specifically on older ranch homes where a previous contractor cut corners on the rough opening prep.
Pricing for Impact Windows & Doors in Longwood, FL
Impact window replacement in Longwood runs $900-$2,800 per opening installed. Impact sliding glass doors land between $2,400 and $6,500. Impact entry doors run $1,800-$5,000, and impact garage doors typically fall between $2,000 and $4,500. Whole-home impact retrofits on the 1970s-1990s ranch stock that dominates Longwood’s suburban corridors generally land between $18,000 and $45,000.
What moves the number: opening count, product line, glass package, and whether the property sits in the Historic District. Historic-compliant units with true-divided-light profiles and custom millwork carry a meaningful premium because they are not stocked products. Every TruePane quote includes the permit fee, the wind-load inspection coordination, and the Florida Product Approval documentation, written line by line. Call (954) 280-4413 for a free estimate and an itemized quote you can hold us to.
We Also Serve Cities Near Longwood
TruePane provides Impact Windows & Doors in Longwood and handles the same permitting, wind-load, and product approval documentation in neighboring Lake Mary, Altamonte Springs, Casselberry, and Winter Springs. Each of those cities carries its own review quirks, and our crews know the local inspectors and the paperwork path in each one.
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 - Impact Windows & Doors in Longwood
Every replacement window and door in Longwood must meet Florida Building Code requirements, which include full Florida Product Approval documentation and a permit with a final wind-load inspection. That requirement applies to the entire city, not just certain zones, even though Longwood sits outside the High-Velocity Hurricane Zone. If your quote doesn’t include the permit and the product approval paperwork, it is not a compliant quote. Call (954) 280-4413 and we’ll walk the exact requirements for your address.
Properties within Longwood’s National Register-listed Historic District must clear Florida SHPO review in addition to the standard building permit. That means replacement windows have to match the original narrow-rail, true-divided-light mullion profiles and casing depth, which standard off-the-shelf double-hung impact units do not do. The work becomes a custom-order project that runs weeks longer and costs more, and that is true nowhere else in Seminole County at this scale. We quote historic-compliant impact packages specifically for this situation.
Longwood impact windows need to meet the design pressure rating specified on the Florida Product Approval for the specific unit and installation method, typically expressed in PSF for the local wind zone. Insurers generally require the full product approval documentation and the passed final inspection before applying premium discounts. We register both manufacturer warranty layers in writing and hand you the paperwork for your insurance file before the truck leaves the driveway. Call (954) 280-4413 to get a quote that includes every compliance document you’ll need.
Replacing fogged double-pane units with properly specified impact windows fixes the condensation, because the fog is inside the failed insulated glass unit itself. What you don’t need is a defogging treatment or a repair that pumps the seal. What you do need is a proper install with correct flashing, especially given Longwood’s rainfall volume, so the new unit doesn’t trap water behind the frame. We see this recurring on older Longwood ranches where the previous install was under-flashed.
A compliant Longwood impact window quote includes the Florida Product Approval number for each product, the permit fee, the wind-load inspection coordination, and the flashing and rough-opening prep the install actually requires. A cheap quote skips the permit, skips the historic review if the property is in the District, and skips the flashing details. That is not savings. That is a job that stalls at review or leaks after the first storm season. Our written line-item quotes show you exactly what you’re paying for. Call (954) 280-4413 for a free estimate.
Call TruePane for Impact Windows & Doors in Longwood
Off Wekiva Springs Road in a 1980s concrete-block ranch, our crew pulled a fogged sliding glass door whose insulated glass unit seal had failed, argon gone, U-factor effectively shot. We replaced it with a ViewLux impact-rated sliding door using fusion-welded frames, low-E glass, and full perimeter flashing tape, then handled the permit and final wind-load inspection so the homeowner had a documented product approval number for their insurance file. That is the standard we hold on every Longwood job.
We stand behind the work, the warranty, and the promise, in writing. If the pane is not true, the job is not done. Call (954) 280-4413 to schedule your free estimate, and a live person will answer.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Longwood residents with impact-rated windows and doors since 2008 of community service.
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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