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 Lisbon
If you live in Lisbon, FL and need impact windows or doors that will actually pass a wind mitigation inspection and hold up to Lake County’s humidity, you’re in the right place. We’ve worked on enough aging ranch homes and mobile homes around Lisbon to know exactly what goes wrong with jalousie windows, corroded aluminum frames, and poorly flashed sliders out here. TruePane Windows & Doors serves the entire Lisbon area with background-checked, uniformed technicians who measure every opening twice and register both warranty layers before the truck leaves your driveway. Call us at (754) 238-2201 for a free estimate.
Why TruePane Windows & Doors Is Lisbon’s Preferred Impact Windows & Doors Company
TruePane is led by second-generation glazier Dale Kessler, who founded the company in 2008 after spending years watching out-of-true installs and voided warranties become expensive problems for Florida homeowners. That’s the standard we bring to every Lisbon job: if the pane is not true, the job is not done. We are an authorized installer for more than a dozen manufacturer lines, including, PGT, and CGI, which means we can quote side by side on paper so you see exactly what you’re buying before you spend a dime.
Lisbon homeowners keep our number because we do what we say we’ll do. We show up when we say we will, in uniform, prepared to work. Every job is covered by our Done Right Promise and The Keystone Standard: both warranty layers registered in writing, durations stated, no arguing later. We also maintain a permanent 5% discount for seniors and veterans, and we answer the phone with a live person 24 hours a day, 7 days a week. Not a voicemail tree. Not a callback form. A person who can schedule your estimate right then.
Our crews serve Lisbon locally, with dispatch and scheduling coordinated from our South Florida metro office. That means the technician who walks your property off Emeralda Island Road or near Lake Dorr understands what Lake County moisture does to window frames over twenty or thirty years. We’re not reading a script. We’ve seen it.
Our Impact Windows & Doors Services in Lisbon
We install, replace, and service the full range of Impact Windows & Doors for Lisbon homeowners. Here are the services we handle most often in this part of Lake County:
Hurricane Impact Windows
Most Lisbon homes we inspect still have original single-pane aluminum sliders or jalousie windows from the 1950s through 1970s. Those units offer almost no wind resistance and very little insulation. We replace them with impact-rated options from manufacturers like ES Windows, sized and specified for Lake County’s inland wind zone. Every installation includes a wind-load calculation checked against Florida Building Code before we order the window, because skipping that step is the fastest way to fail an inspection later.

Impact Sliding Glass Doors
Sliding glass doors in Lisbon leak for one reason more than any other: the sill track was never flashed correctly against the daily summer thunderstorms that build over Lake County. Water gets behind the frame, the subfloor soaks, and the frame delaminates. We replace impact-rated sliders and re-flash the rough opening with butyl tape as standard practice. The door itself is only half the job.

Impact Entry & French Doors
Front doors and French doors on Lisbon ranches take direct wind and driven rain from the lake. A warped door that binds in July is a security problem and an energy problem. We install impact-rated entry and French doors with properly sealed thresholds and reinforced jambs. The work is done to code, and we pull permits so the installation is documented for your insurance file.

Impact Garage Doors
Garage doors are the largest single opening in most Lisbon homes, and a non-rated door will fold under storm pressure. We install impact-rated garage doors and bracing systems that meet Florida Building Code for inland Lake County. If you’re scheduling a four-point or wind mitigation inspection, this is the item that fails most often on older homes.

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 Lisbon
We are an authorized installer for, PGT, CGI, ES Windows, ECO Window Systems, among more than a dozen manufacturer lines. For Lisbon customers, that means we can place two or three comparable quotes side by side on paper and explain the differences honestly: U-factor, design pressure rating, glass package, frame material. We stock common replacement parts and insulated glass units for the brands we install, which keeps turnaround shorter when a seal fails or a sash needs rebuilding. We’re also glad to service existing impact windows and doors from other manufacturers.
Common Impact Windows & Doors Problems We See in Lisbon Homes
- Corroded jalousie frames. On 1960s ranches around Lisbon, original jalousie windows often have aluminum frames so corroded the sash won’t close tight. Lake humidity is the culprit. The real damage is behind the frame, where moisture has been rotting the rough opening for decades.
- Leaking sliding door sills. If the sill track on an impact slider was installed without proper flashing tape, the daily summer thunderstorms that form over Lake County will force water beneath the frame. The subfloor gets wet before you ever see a stain.
- Failed wind-load inspection. Homeowners sometimes replace windows with an impact-rated product but never verify the design pressure rating meets Florida Building Code for inland Lake County. The permit reviewer checks, and the install fails. We run that calculation before ordering anything.
- Fogged insulated glass units. Seal failure is common in Lisbon because constant ambient moisture keeps frame channels damp. A fogged impact window still provides structural resistance, but the glass performance is gone. We can often replace the IG unit itself without hanging a whole new window.
Pricing for Impact Windows & Doors in Lisbon, FL
Impact window replacement in Lisbon typically runs $900-$1,800 per opening for standard double-hung or casement units, depending on glass package and design pressure rating. Impact sliding glass doors run $2,500-$5,500, with the higher end covering wider openings and stiffer wind-load requirements. Impact entry doors range from $1,800-$4,200. Impact garage doors run $2,200-$5,000. If we find rotted jambs or failed rough-opening framing during removal, the repair adds to the invoice, and we’ll show you the scope in writing before cutting anything. Every quote is line-itemed and fixed, with no change orders unless you ask to change the scope yourself. Call (754) 238-2201 for a free estimate on your exact openings.
We Also Serve Cities Near Lisbon
TruePane regularly works in the communities around Lisbon, including Anna Maria, Acacia Villas, Alafaya, and Altamonte Springs. If you live near any of these areas and need impact windows or doors, the same crew and the same Keystone Standard apply. We’re glad to come out, measure, and quote.
Serving Lisbon, FL - Our Local Coverage Area
We’re based in the Lisbon 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 Lisbon
Yes. Florida Building Code still requires wind-load compliance for replacement windows and doors in inland Lake County, including Lisbon. The wind speed zone is lower than coastal counties, but the requirement does not disappear because you’re inland. Impact-rated products also solve Lisbon’s bigger practical problem: they seal out the lake-driven moisture that rots frames and jacks up humidity inside older homes. Call (754) 238-2201 and we’ll check your current windows against code.
Lisbon sits in the heart of Lake County, one of the most lake-dense counties in the United States, so window and door assemblies here face near-constant ambient moisture from surrounding water bodies, not just seasonal rain. That accelerates aluminum frame oxidation and wood-frame rot at a pace faster than in drier inland Central Florida communities. Moisture-resistant fusion-welded vinyl frames and proper flashing are a code-driven necessity in Lisbon, not an upgrade. We see the difference in every tear-out.
The inspector verifies that each opening’s product has a design pressure rating that meets Florida Building Code for Lake County’s wind zone, and that the installation was permitted and documented. If the manufacturer’s label or the permit record is missing, the credit gets denied. We register both warranty layers in writing and pull permits on every Lisbon job, so when the inspector asks for paperwork, you have it.
A fogged IG unit means the seal has failed and the insulative gas has escaped, but the window’s structural impact rating is a separate property of the frame and laminated glass. The insurance policy responds to storm damage, not seal failure. However, we can often replace just the failed IG unit in an older impact window to restore thermal performance without a full window replacement. Ask us to inspect before you file a claim; call (754) 238-2201.
It depends on the frame condition and the manufacturer. If the frame is square and the hardware is sound, a new IG unit can often be glazed into the existing sash at lower cost than a full replacement. If the frame is corroded or out of true, a new sash is the honest fix. We’ll measure, inspect, and tell you which route makes sense before any work is scheduled. Estimates are free.
Wind Mitigation and Code Compliance in Lisbon: What a Compliant Quote Includes
Here’s the part most window companies in Lake County skip, and it’s the part that matters when your insurance renewal comes around. Lisbon’s impact window job is not a glass swap. It’s a permit-critical, moisture-proofing job. A compliant quote includes the wind-load calculation for each opening, the manufacturer’s design pressure documentation, the permit application, and the flashing detail work that keeps lake moisture out of the rough opening. A cheap quote often leaves out the permit and the flashing. The window looks fine for six months. Then the July thunderstorms find the gap behind the sill track.
On a 1960s ranch off Emeralda Island Road, our crew pulled out original jalousie windows whose aluminum frames were so corroded the sash wouldn’t close tight, and the sills had rotted from decades of lake humidity. We replaced them with ViewLux impact-rated double-hung units with low-E glass and argon fill, then re-flashed the rough openings with butyl tape and replaced the water-damaged jambs. The homeowner later told us the indoor humidity dropped noticeably within a week, and the new U-factor cut her summer AC runtime. That’s the difference between a quote that says “impact windows” and a quote that actually complies with Lake County’s inland wind-load code.
If you’re in Lisbon and your windows haven’t been inspected in twenty years, start with a free estimate. We’ll walk the property, check the frames, and tell you straight what needs to be done and what can wait. Call (754) 238-2201 and ask for an impact windows and doors estimate in Lisbon. A person answers. We’ll get you on the schedule.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Lisbon and Lake County with the Keystone Standard on every job.
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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