Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Lisbon
Window replacement in Lisbon, FL runs $850-$1,500 per opening for a standard insert and $1,600-$3,200 for a full-frame replacement on a typical CBS ranch. That is the honest range before we talk about impact glazing, which adds $400-$900 per unit. The bigger question for Lisbon homeowners is not what the window costs. It is whether the unit meets Lake County wind-load code, because nearly every older home here was built well before Florida updated its rules after the 2004 hurricane season. We know this market from the inside, and we answer the phone at (813) 320-9346 when you want to talk it through.
Why TruePane Windows & Doors Is Lisbon’s Preferred Window Replacement Company
We carry Simonton, Ply Gem, and PGT lines that make code compliance a straightforward conversation, not a surprise at inspection. Lisbon is unincorporated Lake County rural Florida, and the homes here tell a very specific story: mid-century concrete block stucco ranches with original aluminum frames, manufactured housing on perimeter lots, and a share of pre-2004 builds that still have single-pane jalousies. Our technicians work in these houses every month. We know the rough openings, the settling patterns, and the humidity problem before we park the truck.
Homeowners here tend to call after they have already been burned once: a fogged seal that showed up a year after a cheap install, a window that now binds in July. We are built for those callers. Dale Kessler founded this company on a rule that governs every install: if the pane is not true, the job is not done. We register both manufacturer warranty layers in writing before we leave the driveway, and we back the workmanship with our 90-Day Done Right Promise. No paperwork fights.
A live person answers the phone 24 hours a day, 7 days a week. You will not get a voicemail tree. You will get a background-checked, uniformed technician who measures twice and quotes manufacturer lines side by side on paper so you can see exactly what you are buying and what each unit costs.
Our Window Replacement Services in Lisbon
Full Frame Replacement
Most pre-2004 Lisbon homes that trigger a code upgrade need full frame replacement anyway. We remove the old window, the frame, and the buck down to the rough opening, then reframe, repair any rot or settling damage, flash and seal properly, and set a new code-rated unit into a square opening. The lake-driven humidity around Lisbon means wood rough openings stay damp for months. We inspect and rebuild that structure before anything new goes in, because a new window set into a soft jamb will bind and leak within two seasons.

Impact-Rated Window Replacement
For Lisbon, this is the service that matters most under Florida Building Code wind-load rules. Impact-rated units are a distinct upgrade from standard insulated glass, and they are often mandatory when a permitted replacement involves a home with non-impact jalousies or sliders. We quote PGT, Simonton, and Ply Gem impact lines side by side on paper, with the design pressure rating stated, so the Lake County inspector sees documentation and you see exactly what the extra cost covers.

Storm Window Replacement
Some Lisbon homes still use exterior storm panels over original single-pane frames. That setup can pass in limited situations, but when the original window itself is non-compliant, the storm layer does not fix the underlying wind-load deficiency. We walk you through when a storm window upgrade satisfies the local review and when the code requires a full replacement of the primary unit. The answer is specific to your address and your existing framing.

Energy-Efficient Upgrade
Evaporation from the dozens of surrounding lakes keeps Lisbon’s ambient humidity well above the surrounding uplands. That humidity forces HVAC systems to run harder and accelerates insulated glass seal failure. An energy-efficient upgrade using low-E glass with argon fill is not a luxury here. It is the difference between sills that sweat every morning and glass that stays clear, plus a measurable reduction in cooling load during the long Lake County summer. We can show you the rated U-factor and SHGC for each line we quote.

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 factory-authorized for the lines Lisbon homeowners actually request: PGT for impact-rated work, Simonton for solid mid-tier replacement, and Ply Gem when budget matters but code compliance cannot slip. We keep common hardware and seal components stocked locally, and we schedule replacement work from our South Florida office with local crews who know Lisbon’s roads and subdivision patterns. That means we are not waiting on a regional warehouse when your inspector asks for a specific DP rating document.
Common Window Replacement Problems We See in Lisbon Homes
- Rotted wood-framed rough openings around 1960s CBS ranches. The humidity from the lake-dense interior keeps wood damp for months after a rain, and original window bucks pull away from the block as they rot. A new window set into that opening will shift, bind, and leak.
- Single-pane aluminum jalousies still in service on older rural properties. These were the cheap standard in 1950s-1970s Florida construction. Today they are non-compliant wind-load units, and a single permitted replacement can legally trigger a whole-home fenestration review under current code.
- Premature insulated glass seal failure. The persistent high humidity around the lakes works on window seals and door weatherstripping from the outside in. We see fogged glass units on homes that were only replaced ten years ago.
- Settling and hairline cracking around original window bucks in CBS construction. Concrete block shifts over decades, and the original window frame does not flex with it. Before any new unit can go in, the opening typically needs reframing and recaulking.
Pricing for Window Replacement in Lisbon, FL
We believe in writing down real numbers, so here are the Lisbon ranges as of this season. A standard insert replacement on a mid-century CBS home typically runs $850-$1,500 per window. Full-frame replacement, which most pre-2004 Lisbon homes require, runs $1,600-$3,200 per window. Adding impact-rated glazing moves that range to $2,000-$4,100 per window depending on size, brand, and the DP rating your opening requires. Energy-efficient low-E argon upgrades add roughly $150-$400 per unit over baseline glass. What moves the number is the condition of the rough opening and whether your address falls under the whole-home fenestration trigger. The first visit for an estimate is free, the quote is line-item, and the price on the written quote is the price on the bill. Call (813) 320-9346 and we will put a number on your specific windows.
We Also Serve Cities Near Lisbon
Our Window Replacement crews serve Lisbon and the surrounding Lake County communities, including Acacia Villas, Alafaya, Altamonte Springs, and Altoona. If you are just outside our immediate Lisbon route, call anyway. If we cannot reach you, we will tell you straight, and a real person will say so.
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 - Window Replacement in Lisbon
It can, and it depends on what the rest of your home currently has in place. Many pre-2004 rural Lake County homes in and around Lisbon still carry single-pane aluminum jalousie or slider windows that do not satisfy today’s wind-load requirements. When you pull a permit for one replacement, the reviewing authority can require the whole home’s fenestration be brought into compliance with the Florida Building Code. That is not a TruePane rule; it is the law. We will tell you before you buy anything whether your specific address falls under that trigger, and we will quote a path that gets the inspection passed the first time. Call (813) 320-9346 for a straight answer on your house.
A window replacement in Lake County generally needs to meet Florida Building Code wind-load design pressures for the structure’s location and exposure category, which in Lisbon means an impact-rated unit or an approved storm-shutter-ready assembly with a documented DP rating. The exact number depends on your roof height, your exposure to open lake wind, and your home’s structural category. We state the DP rating on every Lisbon quote, and we register the manufacturer’s documentation for the inspector before the truck leaves. A cheap quote that skips that documentation is a failed inspection waiting to happen.
Because Lisbon sits inside a lake-dense belt where evaporation from dozens of surrounding water bodies keeps ambient humidity persistently higher than the surrounding uplands. That constant moisture works on insulated glass unit seals and door weatherstripping from the outside, causing premature fogging and seal failure. We pulled a set of rotted wood-framed jalousies out of a 1960s CBS ranch near Lake Yale and found the rough openings had settled so badly the original window bucks were pulling away from the block. After reframing and recaulking, we installed Simonton impact-rated double-hung units with argon-filled low-E insulated glass, and the homeowner finally stopped wiping condensation off the sills every morning. That is the difference between a window set into a sound opening and one set into a damp one.
A documented, code-compliant impact-rated installation is much easier to defend in a wind or named-storm claim. Insurers look for permitted work and manufacturer documentation showing the correct DP rating for the structure. When you have that, the conversation is simple. When you do not, the adjuster has a reason to push back, and you are left trying to prove a negative. We register both warranty layers in writing and keep the compliance documentation with every Lisbon job. That paperwork matters when a storm hits.
A compliant quote includes the DP wind-load rating for the unit, the impact or shutter-ready designation your address requires, the permit application, and the engineering documentation the Lake County inspector will ask for. A cheap quote often skips the engineering review, quotes standard non-impact glass, and hopes the inspector will not catch it. Then you pay for a tear-out and re-install out of pocket. We include the compliance paper in the written line-item quote. If a competitor’s number looks too good, bring it to us and we will show you what they left out. Call (813) 320-9346 for a free estimate that covers the whole picture.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Lisbon and the surrounding Lake 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.



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