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 $1,900-$4,800 installed, depending on the door’s width, glass package, and whether the home sits in the Historic Village or a 1970s ranch subdivision. Most Longwood jobs take one day once the slab or door arrives. Call (754) 238-2201 and a live person answers, any hour. That’s the TruePane way.
We know Longwood because we work here constantly. The city splits into two very different housing markets, and a door company that doesn’t understand both will quote the wrong product. Historic Village homes face a Certificate of Appropriateness requirement before permits issue. Sanlando Springs and Wekiva-area ranches face failing original aluminum sliders. We plan the job differently for each.
Why TruePane Windows & Doors Is Longwood’s Preferred Sliding & Patio Doors Company
TruePane Windows & Doors was founded by Dale Kessler in 2008 on a rule that still governs every install: if the pane is not true, the job is not done. Dale is a second-generation glazier, and our Longwood crews are background-checked and uniformed, trained to work in someone’s home like they’d work in their own mother’s. That matters here. Longwood homeowners have lived in their houses twenty, thirty, sometimes forty years, and they remember the contractor who left them with a door that binds in July.
Longwood customers call us for two reasons. First, we register both manufacturer warranty layers in writing before the truck leaves the driveway. That’s The Keystone Standard, and it protects the homeowner against a voided warranty later. Second, our Done Right Promise means what it says. If the door is not right, we make it right. No paperwork fight. No arguing.
We’re also an authorized installer for more than a dozen manufacturer lines, including, and PGT. That means we quote manufacturer lines side by side on paper so you see exactly what you’re buying. We measure every opening twice. We do not surprise you with a change order at the end of the job. That’s a square deal, and it’s how we’ve built our name in Longwood.
Our Sliding & Patio Doors Services in Longwood
Patio Sliding Doors
Most Longwood ranches built in the 1970s and 1980s still have their original single-pane aluminum patio sliders. Those doors conduct heat, fog between the glass, and seize in the track as the frames distort under Central Florida’s daily thermal cycling. We replace them with fusion-welded vinyl or thermally-broken aluminum sliders carrying low-E glass and argon fill. The difference in the July cooling bill is real, and the door actually opens without a fight.

Heavy-Duty Sliding Doors
For wide openings and daily use, we spec heavy-duty sliding doors built with reinforced frames and stainless roller assemblies. Longwood’s afternoon thunderstorm pattern means the door takes wind gusts and pressure changes throughout the summer. A heavy-duty door with proper flashing tape around the rough opening won’t blow water into the jamb the way the original 1970s installation did. In Sanlando Springs specifically, we regularly rebuild jambs that rotted from years of humidity-driven water intrusion around unflashed frames.

Pocket & Barn Doors
Pocket and barn doors work well in Longwood’s smaller historic cottages, where a swinging door wastes floor space. The Historic Village homes need hardware and profiles that read period-correct. We carry lines that match original Craftsman and vernacular Florida cottage details. In the ranch homes, pocket doors free up wall space in tight hall baths and laundry rooms. We measure the pocket cavity carefully, because a 1970s rough opening rarely matches what the manufacturer’s chart assumes.

Screen Door Installation
Longwood humidity and afternoon storms eat cheap screen doors fast. We install extruded aluminum screen doors with powder-coated frames that hold up to daily use and don’t sag on the hinges after two summers. The standard hinged screen door on a patio opening gets abused daily, and the cheap builder-grade version from the big-box store lasts about three years here. We’d rather install one that lasts fifteen.

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.
Sliding & Patio Doors Installation Experts in Longwood
Our Sliding & Patio Doors team handles everything from a single patio door replacement to full panoramic slider systems across Longwood. We plan for the local conditions: high humidity, thermal cycling, and building codes that differ street by street. The door we’d put on a 1978 Sanlando Springs ranch is not the door we’d put on a 1915 Historic Village cottage, and we’ll explain the difference on paper before you spend a dollar.
Trusted Brands We Service in Longwood
We install and service more than a dozen manufacturer lines, and for Longwood homeowners we frequently quote Andersen, PGT, ES Windows, and Milgard side by side. The side-by-side quote matters. You see the glass package, the frame material, the wind-load rating, and the warranty duration for each option. We also keep common replacement rollers, handles, and weatherstripping in our trucks, so a service call in Longwood usually means a repaired door in one visit. For impact-rated applications, we spec PGT or ES Windows and register both warranty layers before we leave the driveway.
Common Sliding & Patio Doors Problems We See in Longwood Homes
- Fogged glass in original 1970s sliders. The insulated glass units in the original aluminum patio doors fail within a decade in Longwood. Intense UV plus afternoon thunderstorm thermal cycling breaks the seals, argon leaks out, and the glass fogs between the panes every afternoon.
- Rotted jambs from unflashed original installations. Most 1970s CBS ranches in Sanlando Springs and the Wekiva tracts had patio doors set without flashing tape. The gap around the frame wicks water, and decades of Longwood humidity feed mold and rot inside the jamb, hidden until the door starts to sag.
- Seized or derailed sliders from frame distortion. Single-pane aluminum frames heat and cool unevenly every day. After thirty or forty years in Longwood’s sun, the frames curve just enough that the rollers bind and the door comes off its track.
- Screen doors that sag and let bugs in. Longwood’s humidity and daily use quickly ruin the hinge mechanisms on lightweight screen doors. The result is a screen that doesn’t close, which means mosquitoes in the house.
How Longwood’s Historic District Changes the Job
In Longwood’s Historic Village, any sliding or patio door replacement that opens onto a street-facing facade must first receive a Certificate of Appropriateness from the city’s Historic Preservation Board. That step does not exist in Altamonte Springs, Lake Mary, or Casselberry. Standard vinyl sliding doors are often non-approvable in that zone because they can’t match original wood lite patterns and profiles. A contractor who skips the Certificate and pulls only a standard Seminole County building permit will have the permit challenged. We handle the Certificate paperwork as part of the job, and we spec doors that clear the board on the first submission. That’s the difference between a company that works in Longwood and one that just drives through it.
Now contrast that with the Sanlando Springs ranch we worked on recently. The original aluminum sliding door in a 1978 concrete-block home had failed completely. The jamb had rotted from years of water intrusion around an improperly flashed frame, and the insulated glass unit had blown. Argon gone, glass fogged every afternoon. We installed a fusion-welded vinyl heavy-duty sliding door with low-E glass and argon fill, reflashed the opening with flashing tape, and rebuilt the jamb to meet current wind-load code. No Certificate needed there. Just the right door, done right.
That split is Longwood. No other city in north Seminole County has a nationally registered historic district and a dominant stock of aging 1970s ranch tract homes at the same time. It changes which materials we spec, how we price, and what paperwork we file. A company that treats every door as the same job is going to quote the wrong product somewhere in Longwood.
Pricing for Sliding & Patio Doors in Longwood, FL
A standard 6-foot patio sliding door replacement in Longwood runs $1,900-$3,400 installed for a quality vinyl slider with low-E glass. Heavy-duty sliding doors run $3,200-$4,800. Pocket door installations land between $2,200 and $4,000 depending on wall construction. Screen door installation runs $300-$700 for an extruded aluminum powder-coated screen door. Historic Village jobs add $500-$1,500 for design review, Certificate of Appropriateness preparation, and period-appropriate specs. We give written line-item quotes. No change orders. No surprise line items on the bill. Call (754) 238-2201 for your free estimate, and we’ll bring the numbers to your kitchen table.
| Longwood Door Service | Typical Price Range |
|---|---|
| Patio sliding door replacement | $1,900-$3,400 |
| Heavy-duty sliding door | $3,200-$4,800 |
| Pocket or barn door install | $2,200-$4,000 |
| Screen door installation | $300-$700 |
| Historic Village Certificate & spec | $500-$1,500 add-on |
We Also Serve Cities Near Longwood
While this page is written for Sliding & Patio Doors in Longwood, our crews also serve Lake Mary, Altamonte Springs, Casselberry, and Winter Springs on a regular schedule. Each city has its own code quirks and housing stock, and we plan the work accordingly. If you’re just outside Longwood, call (754) 238-2201 and we’ll tell you straight when we can be there.
Key Takeaways for Longwood Homeowners
- Historic Village street-facing door replacements need a Certificate of Appropriateness first. We handle the paperwork.
- 1970s and 1980s ranch original aluminum sliders are failing across Longwood now. Fogged glass, rotted jambs, seized tracks.
- Every job gets both warranty layers registered in writing before our truck leaves. No voided warranties.
- Done Right Promise. If the door is not right, we fix it. No arguing.
- A live person answers at (754) 238-2201, 24/7. Not a voicemail tree.
- Written line-item quotes. The price you sign is the price you pay.
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 is in the Longwood Historic Village and the door opens onto a street-facing facade, yes, you need a Certificate of Appropriateness from the city’s Historic Preservation Board before any permits issue. The Certificate confirms the replacement door matches the original lite patterns and profiles. Standard vinyl sliders are often non-approvable in that zone. If your home is outside the Historic Village, including Sanlando Springs or the Wekiva-area tracts, no Certificate is required. Call (754) 238-2201 and we’ll check your address before we quote.
That fog is a blown seal in the insulated glass unit. Longwood’s intense UV and daily heat-cool cycling from afternoon thunderstorms break the seals on original single-pane aluminum doors faster than national averages. The argon gas leaks out, and moisture condenses between the panes every time the temperature swings. The fix is glass replacement or a full door replacement depending on the frame condition. Call (754) 238-2201 for a free estimate, and we’ll tell you which one actually makes sense for your door.
In most cases, no. The Longwood Historic Preservation Board generally requires replacement doors to match the original wood lite patterns and profiles, and standard off-the-shelf vinyl sliding doors can’t meet that standard on street-facing facades. We quote period-appropriate options that clear the Certificate of Appropriateness on the first submission. On rear facades that are not street-facing, vinyl may be acceptable. We’ll check your specific elevation before you spend money on a product that won’t get approved.
An extruded aluminum screen door with a powder-coated frame survives Longwood’s climate. The builder-grade steel or lightweight aluminum screens from big-box stores corrode, sag, and fail within about three years here. We install reinforced aluminum screen doors with stainless hinges and closers that hold up to daily use and the daily humidity. Prices run $300-$700 installed. Call (754) 238-2201 for a free quote.
Because the original installation almost certainly lacked flashing tape around the rough opening, and Longwood’s humidity does the rest. Water wicks into the gap between the frame and the studs, and even a covered patio doesn’t stop the moisture trapped inside the wall cavity. We see this constantly in 1970s Sanlando Springs and Wekiva-area tract homes. The fix is pulling the door, rebuilding the jamb, flashing the opening properly, and resetting the door. It’s a full-day job that prevents the same rot from returning in five years. Call (754) 238-2201 for a free assessment and written quote.
Get Your Longwood Sliding or Patio Door Done Right
Whether you’re in the Historic Village navigating the Certificate of Appropriateness, or a Sanlando Springs ranch with a fogged original slider, we’ll give you a straight answer and a written price. Dale Kessler’s rule has not changed since day one: if the pane is not true, the job is not done. Call (754) 238-2201 now. A live person answers. We’ll set up your free estimate, measure every opening twice, and register both warranty layers before the truck leaves your driveway. That’s the TruePane square deal for homeowners across Longwood and north Seminole County.
Written by Dale Kessler, Owner at TruePane Windows & Doors. Dale leads every install with The Keystone Standard and a 42-year glazier’s craft tradition.
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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