Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Sliding & Patio Doors Across Longwood
Sliding and patio door replacement in Longwood typically runs $1,800 to $6,500 for a standard retrofit, while historic district work on W. Church Ave or Warren Ave can reach $9,000 to $14,000 once custom profiles and structural repairs are factored in. Most installations take one to two days once the door arrives, though historic board approval can add three to six weeks before the order is placed. If you’re in Longwood and your patio slider drags, fogs, or lets water in during summer storms, call TruePane Windows & Doors at (813) 320-9346. We’ll give you an honest read on what the fix costs and whether replacement makes more sense.
Why TruePane Windows & Doors Is Longwood’s Preferred Sliding & Patio Doors Company
We’ve done enough work in Longwood to know the difference between a 1980s CBS ranch off State Road 434 and a 1905 Queen Anne in the historic district. They are different jobs, with different permitting paths and different right answers. Homeowners here tend to be the kind who call, not click. They want someone on the phone who can tell them straight what the county wind-load reviewer will flag and whether the historic board will insist on a wood interior profile. That’s what we do.
Our lead, Dale Kessler, came up as a glazier before he founded this company in 2008, and the rule on his whiteboard still governs every job: if the pane is not true, the job is not done. We carry that into every Longwood home, from the 1990s subdivisions near Wekiva Springs Road to the Craftsman bungalows around West Warren Avenue. Background-checked, uniformed technicians show up when we say. A live person answers the phone 24 hours a day, and every estimate is written, line-item, and square. So when a homeowner near the Longwood historic core asks whether the board’s required lite pattern will match their original sash, they get an answer from someone who has actually stood in their front room and measured it.
Our Sliding & Patio Doors Services in Longwood
Patio Sliding Doors
The most common job in Longwood is replacing a failed aluminum slider on a 1970s-to-1990s CBS home. These doors usually carry original frames, worn rollers, and insulated glass units that have lost their argon and fogged. We measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers before the truck leaves your driveway. The 90-Day Done Right Promise means if something is off after install, we come back and fix it. No paperwork fight.

Heavy-Duty Sliding Doors
Some Longwood homeowners want a wider opening and a door that will still feel solid in twenty years. Heavy-duty sliders use reinforced frames, thicker glass, and stainless roller systems rated for daily use and Florida wind loads. We’ve installed these in newer custom homes around the golf communities and in remodels of older frame homes where the original pocket framing needed reinforcement. The structural work gets priced and approved in writing before we cut anything.

Pocket & Barn Doors
Longwood’s historic homes sometimes have original pocket doors that have been painted shut or knocked off their tracks for decades. We restore them when possible and install new pocket or barn door hardware when replacement is the better route. In tight hallways and sunrooms, a properly hung barn door frees up wall space and floor area. We also handle screen door installation for patio openings, another common need in a climate where screens take abuse from afternoon storms.

Panoramic Sliding Systems
For Longwood homeowners opening up a back wall to a pool or lanai, multi-panel sliding and stacking systems do what a standard patio door cannot. These are wider, heavier, and more expensive, with structural headers that need engineering. We quote the PGT and CGI impact-rated lines for these systems because they hold up under Seminole County’s wind-pressure requirements without sacrificing the view. The header work and permit path for a multi-panel opening is not a side conversation; it’s the first conversation.

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 Longwood
TruePane is an authorized installer for more than a dozen manufacturer lines, and for Longwood work we commonly quote PGT, Simonton, and Ply Gem. PGT’s impact-rated aluminum and vinyl sliders hold up well in Central Florida’s humidity and hurricane-season wind, which is why we put them in front of customers near the I-4 corridor. Simonton and Ply Gem offer solid vinyl mid-range options for homeowners who need a reliable door without the historic-district price tag. We keep local supply chains close so turnaround does not stretch a Longwood job out longer than it has to, and we stock common replacement rollers, handles, and weatherstripping for these lines. You’ll see both warranty layers registered in writing, durations stated, before we leave the driveway.
Common Sliding & Patio Doors Problems We See in Longwood Homes
- Fogged insulated glass on original aluminum sliders. Longwood’s heat and humidity accelerate argon loss and seal breakdown. By year 25 to 30, most original 1980s aluminum sliders are fogged, and the only lasting fix is replacing the glass package or the entire door.
- Rot and flashing failure around patio door sills. Afternoon thunderstorms drive rain sideways against rear patio doors. If the original flashing tape dried out or the jamb was never properly sealed, water seeps into the subfloor before anyone notices. We find this on CBS homes as often as on wood-frame historic houses.
- Historic district stop-work orders for unapproved retrofits. A homeowner near W. Church Ave or Warren Ave pulls a standard vinyl retro
fit permit, and the Longwood Historic Preservation Board flags it because the frame profile is not period-accurate. Work stops. That’s why the board review happens before the order is placed in our process, never after.
- Chalked and warped vinyl frames from UV exposure. Longwood sits at a latitude with intense, year-round sun. Low-grade vinyl frames chalk within five to seven years and warp near the rollers, causing the door to bind. This is a big reason we mid-range quote Ply Gem and Simonton lines with better UV stabilizers, not bottom-shelf supply-house options.
Pricing for Sliding & Patio Doors in Longwood, FL
For a standard 60-inch by 80-inch patio slider in a 1980s Longwood CBS home, expect a range like this:
- Mid-range vinyl retrofit: $1,800-$3,600, installed
- Impact-rated aluminum or vinyl slider: $3,200-$6,500, installed, depending on size and manufacturer line
- Custom-ordered wood or clad-wood historic-approved slider: $6,000-$14,000+, including structural header upgrades and board-required profiles
- Multi-panel panoramic system with header work: $12,000-$28,000+, engineered and permitted
What moves the number in Longwood is the same thing that moves it in no other nearby city: whether your address falls inside the historic district and triggers preservation board review. A slider that costs $2,400 on a 1995 house near Sabal Point can cost $9,000 on a 1910 house three miles away on West Church Avenue, purely because custom wood interior profiles and true divided-light sash are the only approved materials. Hidden framing damage moves the number too. We write allowances into the contract for rotted sills and undersized headers, and any surprise is priced and approved in writing before we touch the lumber. Free estimates: call (813) 320-9346.
We Also Serve Cities Near Longwood
Beyond Longwood, our crews regularly work in Lake Mary, Altamonte Springs, Casselberry, and Winter Springs. Each area has its own mix of housing stock and its own permitting quirks, but the service standard is the same. You can learn more about how we handle those areas on our Sliding & Patio Doors page or see what sets our work apart in Sliding & Patio Doors in Longwood.
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 - Sliding & Patio Doors in Longwood
If your home in Longwood’s historic district is listed as contributing, the board must review and approve any patio slider replacement before a building permit moves forward. For most homes near W. Church Ave and Warren Ave, that means the board will require a wood or clad-wood interior profile and possibly simulated divided-light or true divided-light sash that matches the home’s original door lite pattern. That requirement adds anywhere from three to six weeks of lead time to the permit schedule, even before the county wind-load reviewer sees the plans. We handle the board submittal as part of the job, including any resubmittal comments, and we do not order the door until the approval is in hand. Call (813) 320-9346 to have us pull your address and tell you what your house is likely to require.
Fogged glass means the seal on your insulated glass unit has failed, and the argon between the panes has escaped. In Longwood, this happens faster than manufacturers’ printed ratings suggest because constant humidity and high heat expand and contract the aluminum frame, stressing the sealant. Once the seal goes, the only lasting repair is replacing the glass package or the whole door. On a 1980s slider, replacement is usually the smarter money because the frame and rollers are near end of life anyway. We can quote both options on paper so you can see the math before deciding.
Longwood is inland, but Seminole County has adopted the Florida Building Code, and carries wind-load design pressure requirements for all new door openings, whether or not you are in a coastal wind-borne debris zone. Impact-rated sliders are not always required on inland retrofits, but they are often the better choice: they hold up to hurricane-season wind-driven rain, they reduce exterior noise near I-4, and they qualify for wind-mitigation insurance credits on some Longwood policies. We quote impact and non-impact lines side by side so you can make that call with real numbers, not a sales pitch.
High year-round humidity, combined with intense UV exposure, causes low-grade vinyl frames to chalk on the surface and eventually warp near the roller assemblies. Once the frame warps, the door binds, the rollers wear unevenly, and the panel starts to hang out of plumb. We see this on Longwood homes from the 1990s where the original builder-grade vinyl sliders are now hitting twenty-plus years. The fix is replacement, and we recommend mid-range lines from manufacturers like Simonton and Ply Gem that use UV stabilizers and thicker frame walls designed for Florida’s sun load. It costs a little more up front and lasts a lot longer.
Yes. We have done this on Craftsman and Queen Anne homes near W. Church Ave and Warren Ave, usually by ordering a custom-ordered clad-wood or all-wood door with simulated divided-light sash that replicates the original lite geometry, then pairing it with a low-E insulated glass unit that meets IECC energy requirements. The board gets its period-correct
appearance; the county gets its energy compliance. This is where the cost and lead time climb in Longwood’s historic district, but it is also the only way to get a permit without fighting a stop-work order later.
Only if we find something the original quote could not have predicted, like a rotted sill or an undersized header hidden inside the wall. That is why we write a hidden-damage allowance into every Longwood contract before demolition begins. If we find damage, we price the repair in writing and wait for your approval before touching the lumber. If no damage is found, you pay the fixed line-item number we quoted, period. That is what a square deal looks like at TruePane.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Longwood and surrounding Seminole County communities.
Ready to get your Longwood patio slider replaced or repaired? Call TruePane Windows & Doors at (813) 320-9346 for a free, written estimate. A live person answers, 24/7.
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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