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 Casselberry
Impact windows and doors in Casselberry protect more than glass. They keep out the wind, the debris, and the humidity that sits over the lakes from May through October. If your home still has original single-pane aluminum or jalousie windows set in concrete block, you are overdue for a real conversation about code compliance and storm protection. TruePane has been handling those conversations for Casselberry homeowners for years, and a live person answers when you call (813) 320-9346. We quote the work on paper, register both warranty layers in writing, and speak Seminole County permit language fluently.
Why TruePane Windows & Doors Is Casselberry’s Preferred Impact Windows & Doors Company
Casselberry is not a wood-frame suburb. The core of this city was built as concrete block ranch homes between the 1950s and early 1980s, and that changes what an honest window or door job actually involves. Masonry rough openings are unforgiving. Custom Windows & Doors in Casselberry framing inside a CBS cavity takes longer and costs more than a simple frame-in-frame swap, and any company that quotes Casselberry work without accounting for that is guessing. We do not guess. Our technicians measure every opening twice, check for existing moisture damage at the sill and jamb, and quote the manufacturer line side by side on paper before anything gets ordered.
We are a second-generation glazing business led by Dale Kessler, and we run every job on The Keystone Standard: both manufacturer warranty layers registered in writing, durations stated, and the work backed by our 90-Day Done Right Promise. If the pane is not true, the job is not done. Casselberry homeowners call us because they want a company that will still be in town and still answer the phone if something goes wrong. We plan to be here in thirty years. Our crews serve Casselberry locally; dispatch and scheduling are coordinated from our South Florida office.
Our Impact Windows & Doors Services in Casselberry
Hurricane Impact Windows
Most Casselberry homes were built with jalousie or single-pane aluminum windows set directly into masonry. Those units do not meet current Seminole County wind-load requirements, and they will not pass a wind mitigation inspection. We replace them with code-rated impact windows that carry a current Florida Product Approval number, sized and framed into the existing CBS cavity. You get a window that is tested to take a 2×4 at 34 miles an hour and stay intact. That matters in a city ringed by lakes where debris travels fast.

Impact Entry & French Doors
This is the service where Casselberry’s geography shows up on the bill. Ground moisture wicking up through slab edges rots door thresholds and sill plates from the bottom, especially near Lake Triplet and Lake Concord. By the time a door starts dragging, the jamb is often already soft. We replace the whole assembly: impact-rated slab, composite sill, flashed rough opening, and a re-secured jamb into the masonry cavity. Patching a rotted threshold without addressing the frame is a wasted check. We quote it right the first time.

Wind Mitigation & Code Compliance
Seminole County enforces the Florida Building Code wind-load and impact-resistance requirements that were tightened after the 2004 hurricane season, when Charley, Frances, and Jeanne all made landfall. Every window and door replacement in Casselberry triggers a permit and a product-approval inspection. We pull the permit, schedule the inspection, and make sure the paperwork matches the glass. If you are preparing for a wind mitigation report to lower your insurance premium, we can walk you through exactly what the inspector looks for on a CBS ranch.

Impact Sliding Glass Doors
A sliding glass door on a Casselberry lake lot is a big opening and a big liability. Older aluminum sliders flex under wind load and let humidity through the track. We replace them with our Sliding & Patio Doors in Casselberry or French-style units, depending on the opening and your preference. The track gets leveled, the threshold gets flashed, and the new unit gets registered with the manufacturer before we leave the driveway.

What happens when you call
- 1
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 Casselberry
We install and service more than a dozen manufacturer lines, including Viewlux in Casselberry, and for Casselberry homes we most often quote PGT, CGI, and Simonton. Each line has different product approvals, different glass packages, and different lead times. We stock local parts for the brands we service most here, which shortens repairs on lakeside homes where a failed seal needs a replacement sash rather than a full unit. You see the side-by-side quote on paper before you commit. No mystery glass, no brand substitution after the deposit.
Common Impact Windows & Doors Problems We See in Casselberry Homes
- Jalousie windows failing wind-load inspection. Original louvered glass in 1960s CBS homes will not pass a Seminole County inspection, and it holds no impact rating. Any interior remodel that touches an exterior wall will force the upgrade.
- Seal failure in old insulated glass units on lakeside homes. High localized humidity near Lake Howell and Lake Concord accelerates fogging and argon loss. Once the panes fog, the insulation value is gone and the sash needs replacing.
- Door thresholds rotting from the bottom up. Ground moisture wicks through the slab edge into the threshold and sill plate, even though the walls are concrete block. The rot is invisible until the door drags, and by then the jamb is usually soft too.
- Original aluminum frames corroding at the masonry line. Thirty or forty years of Florida humidity and rain leaves white aluminum pitted and weak where it meets the concrete opening, which allows water intrusion behind the frame.
Pricing for Impact Windows & Doors in Casselberry, FL
A typical impact window replacement on a Casselberry CBS ranch runs $900-$1,800 per opening, depending on size, glass package, and manufacturer. Impact entry doors start around $2,400 and run to $5,000 for a French door pair with full masonry flashing work. A rotting threshold with jamb repair and a new impact-rated door typically lands between $3,200 and $5,800, because the job is reconstruction, not a slab swap. Jalousie-to-impact conversions run higher per opening than frame-in replacements due to the masonry work and custom framing inside the existing cavity. Your estimate is free, it is line-itemed, and the price is fixed in writing before we order anything. Call (813) 320-9346 for an exact quote.
We Also Serve Cities Near Casselberry
TruePane serves Casselberry and the surrounding Seminole County communities, including Winter Springs, Altamonte Springs, Maitland, and Longwood. If you live near the Casselberry line on 436 or up toward the Winter Springs border, the same crew and the same pricing discipline apply. Learn more about our work in the area on our Casselberry page or review our full Impact Windows & Doors service details.
Serving Casselberry, FL - Our Local Coverage Area
We’re based in the Casselberry 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 Casselberry
Because Seminole County enforces the Florida Building Code wind-load and impact-resistance requirements for every residential window and door replacement, regardless of flood zone. Wind does not follow flood maps. If your home is in a wind-borne debris region, which covers all of Casselberry, every unit must carry a current Florida Product Approval number or the county will not pass the inspection. Call (813) 320-9346 and we will explain exactly what your permit requires.
They raise it. Jalousie windows are set in narrow horizontal masonry openings that were never designed for a full-depth impact frame. The opening usually needs to be reframed inside the CBS cavity before the new window goes in, which adds labor and material. A jalousie-to-impact conversion typically runs 20-35% more per opening than replacing a standard aluminum single-hung in the same wall. We quote that work honestly, without hiding the masonry cost in a change order. Call (813) 320-9346 for a per-opening number.
Ground moisture wicks up through the slab edge and into the threshold and sill plate. Concrete block is porous, and the slab edge at the door opening is the lowest point on the wall. Near Lake Triplet and Lake Concord, the water table and localized humidity keep that area damp for months at a time. The wall stays fine; the wood in the door frame does not. We see this on CBS ranches all over the city, and the fix is a full threshold-frame replacement with a composite sill and proper flashing, not a door slab swap. Call (813) 320-9346 for a free assessment.
No. If the threshold and jamb are soft, the structural connection between the door frame and the masonry opening is already compromised. A new slab hung in a rotted frame will drag, leak, and fail the county inspection. The correct repair removes the old frame, addresses the sill plate, flashes the rough opening, and installs a new impact-rated door assembly. In Casselberry’s lakeside CBS neighborhoods, this is one of the most common bundled jobs we quote. Call (813) 320-9346 and we will tell you honestly whether your frame can be saved.
Yes. The Florida Building Code sets maximum U-factor and SHGC values for impact windows based on climate zone. Casselberry falls in a zone that requires a U-factor of 0.65 or lower and an SHGC of 0.25 or lower for most residential replacements, but the exact number depends on the opening orientation and glass package. We quote the glass that meets code for your specific wall, and we put the U-factor and SHGC on the written estimate. Call (813) 320-9346 for a line-itemed quote.
Contact TruePane Windows & Doors in Casselberry
If you live in a CBS ranch near Lake Concord, a lakeside home off Howell Branch Road, or anywhere in Casselberry with original aluminum or jalousie windows, the conversation starts with a phone call. We will tell you what your openings need, what the county will require, and what it costs. No pressure, no change orders, no warranty paperwork that lives in a drawer. Our Impact Windows & Doors team measures twice, quotes on paper, and stands behind every detail. Call (813) 320-9346 to schedule your free estimate.
Written by Dale Kessler, Owner at TruePane Windows & Doors.
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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