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 Key West
Sliding and patio door replacement in Key West typically runs $2,800 to $9,400 depending on whether you need a standard impact slider, a panoramic multi-panel system, or a heavy-duty pocket door. The bigger variable here is not the door itself, it’s what we find when the old jamb comes out. Key West’s salt-blasted, historic housing stock means framing rot, out-of-square openings, and HARC permit work regularly shape the final scope. Our crews serve Key West from the Miami scheduling office, with local technicians who know the Conch house stock and the code requirements on both sides of the approval process. Call (754) 238-2201 to schedule a free estimate.
Why TruePane Windows & Doors Is Key West’s Preferred Sliding & Patio Doors Company
We have spent years in the glass trade across South Florida, and Key West’s particular set of problems is familiar ground. Dale Kessler built this company in 2008 on a simple rule that still governs every install: if the pane is not true, the job is not done. In Key West, “true” means more than square. It means an opening that holds its seal in 150 mph design wind, a track that does not pit out in three years, and a frame color HARC will not make you rip out. The Done Right Promise applies to every sliding door we hang here. The Keystone Standard means both manufacturer warranty layers are registered in writing, with durations stated, before the truck leaves your driveway. A live person answers our phone 24 hours a day, seven days a week. When you call about a door that binds in July or a track that jumped its rail, you get a person who knows what you are describing, not a callback form.
Homeowners in Key West have heard plenty of promises from out-of-town contractors. We expect you to be skeptical. That is why our technicians measure every opening twice, quote manufacturer lines side by side on paper, and show you exactly what the HARC application includes before you sign anything. We hire locally, train apprentices into journeymen, and plan to be answering the phone in this community thirty years from now.
Our Sliding & Patio Doors Services in Key West
Impact-Rated Sliding Doors
In Key West, a sliding patio door is a structural component. It has to meet Miami-Dade HVHZ NOA wind-load certification, not just coastal building code. We install impact sliders from PGT, CGI, and CWS that are tested for the wind pressures Key West actually sees at the apex of the Florida Keys hurricane corridor. The difference between a door that meets code and one that fails an inspection often comes down to the frame material and the installation. A fusion-welded frame with properly set anchors will hold where a mechanically joined frame will rack. We pull the permit, coordinate the HARC review, and do the install to the engineering spec. If the pane is not true, the job is not done.

Pocket & Barn Doors
Pocket doors make sense in Key West’s compact Conch house floor plans, where a swinging door eats four feet of usable wall. But they also create a problem: the pocket cavity hides the track, rollers, and framing from view. When salt air gets into a pocket cavity through a louvered jalousie window nearby, the hardware corrodes silently until the door grinds to a stop. We rebuild pocket cavities with pressure-treated framing, install corrosion-resistant rollers, and flash the opening so salt spray does not get a second invitation. For homes with HARC restrictions that prevent exterior changes, a barn door on an interior track can free up a room without touching a single exterior elevation.

Heavy-Duty Sliding Doors
Some Key West homes need a sliding door that weighs 400 pounds and gets opened fifty times a day by renters, kids, and guests from the Duval Street strip. Standard residential tracks fail under that load in a few seasons. Heavy-duty sliders with reinforced extruded aluminum frames, dual tandem rollers, and stainless steel hardware are the right call for ocean-facing properties from Truman Annex to Sunrise Key. The salt spray on a waterfront deck in Key West will pit a standard roller bearing in three years. We specify heavy-duty hardware from the start, and we show you the manufacturer’s corrosion warranty in writing so you know what you are getting.

Panoramic Sliding Systems
Panoramic systems with three, four, or five panels let you open an entire wall to the trade winds. In Key West, those panels still have to meet the same HVHZ wind code as a single slab. The engineering gets complicated: a four-panel panoramic system can be 16 feet wide, and every panel seam is a potential weak point in a Category 4 storm. We install systems with interlocking meeting rails and multi-point locking that carry the right NOA certifications. One of the brands we stock, PGT, makes a panoramic series that clears Miami-Dade for this exact application. Not every manufacturer does. That is the kind of thing you want to know before the permit goes in.

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 Key West
We are an authorized installer for more than a dozen manufacturer lines, including, PGT, and CGI. For Key West homeowners, we stock parts for Ply Gem, PGT, CGI, and CWS so a roller replacement or track adjustment does not wait on a freight shipment from the mainland. Our Sliding & Patio Doors team handles warranty registration for both layers of coverage, in writing, with durations stated. If a manufacturer pushes back on a claim, we are the ones on the phone. You are not alone with a denied warranty and a fogged seal.
Common Sliding & Patio Doors Problems We See in Key West Homes
- Salt-driven pitting on tracks and rollers. Entirely surrounded by saltwater with no inland buffer, Key West subjects aluminum tracks and roller bearings to some of the most aggressive marine corrosion in the continental US. We regularly see doors that bind or jump the rail within three to five years, especially on ocean-facing homes along South Roosevelt Boulevard or Sunset Key.
- Out-of-square jalousie-era openings. Conch houses built between 1880 and 1930 used jalousie windows and wall framing that was never intended to carry a modern impact slider. When we pull the old jamb, we often find the rough opening is not square, the header is undersized, and the king studs have water damage. Hanging a heavy impact door in that opening without rebuilding it means seal failure and air leaks within a season.
- HARC disapproval after installation. In Old Town, HARC has reversed permitted work after the fact when the door’s muntin profile or frame color did not match the pre-approved samples. A homeowner can spend $6,000 on a code-compliant impact door and then be ordered to remove it because the finish was bronze instead of white. We run the HARC pre-approval as a standard line item on every Key West contract. No surprises after the door is hung.
- Jalousie windows compromising the new door’s seal. Jalousie windows cannot be made hurricane-rated, and many Key West homes still have them adjacent to sliding doors. When a new impact slider goes in next to a louvered jalousie that is essentially an open slot in the wall, the door’s seal performance drops. We flag this during the estimate, and we quote the jalousie replacement separately so the homeowner knows the full picture before the first permit is pulled.
Pricing for Sliding & Patio Doors in Key West, FL
| Service | Typical Range in Key West |
|---|---|
| Standard impact sliding patio door (6 ft, PGT/CGI) | $2,800 - $4,600 |
| Panoramic sliding system (3-5 panels) | $6,500 - $12,000 |
| Heavy-duty sliding door with reinforced track | $3,800 - $7,200 |
| Pocket door retrofit incl. framing rebuild | $2,400 - $5,500 |
| HARC permit coordination & documentation | $850 - $2,100 |
A standard 6-foot impact slider in Key West runs $2,800 to $4,600 before any framing or permit work. The number moves when the old opening needs rebuilding, which happens more often in Conch houses than in newer construction. HARC review adds $850 to $2,100 depending on the property’s classification and the documentation required. We write every estimate with an allowance line for framing repair, so when the jamb comes out and the king stud is soaked, you are not hit with a surprise change order. The price is set in writing, and you approve any adjustment before we touch the wall. Call (754) 238-2201 for a free estimate, and we will walk the job with you before quoting numbers.
We Also Serve Cities Near Key West
Our crews handle Sliding & Patio Doors in Key West and the surrounding Keys, including Big Pine Key, Marathon, Key Colony Beach, and Tavernier. The drive from the mainland an hour north is part of the job, and we schedule it like any other trade. If your property is on a canal in Key Colony Beach or a stilt house in Marathon, the same HVHZ rules apply, and the same salt spray is working on your tracks. Call and we will put you on the schedule for a site visit.
Serving Key West, FL - Our Local Coverage Area
We’re based in the Key West 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 Key West
No, you cannot install just any impact slider in an HARC-designated Old Town home. Key West is the only city in Florida where every sliding patio door must simultaneously carry Miami-Dade HVHZ NOA wind-load certification and pass Historic Architectural Review Commission aesthetic review. HARC requires the door’s muntin profile, divided-light pattern, and frame color to visually replicate 19th-century Conch house details before a permit is issued. We handle the HARC pre-approval as a standard line item, and we have had doors reversed by the commission when a contractor skipped this step. Call (754) 238-2201 and we will walk you through what your specific property requires.
Your rollers are corroding because Key West’s marine exposure is far more aggressive than what standard coastal hardware is rated for. Key West sits entirely surrounded by saltwater with no inland buffer, and the airborne salt concentration is among the highest of any inhabited US community. A standard “coastal-grade” roller uses zinc-plated steel bearings, which pit within three to five years here. We specify stainless steel rollers and sealed bearing assemblies from PGT and CGI, which are built for this environment. When we see a door that jumps the rail on an ocean-facing home off Atlantic Boulevard, the fix is not another set of the same rollers, it is an upgrade to hardware rated for the actual salt load. Call (754) 238-2201 for a hardware inspection.
Opening an old Key West wall for a new slider often triggers electrical, plumbing, and structural upgrades required by current code. On a wood-frame Conch house off Eaton Street, we replaced a corroded aluminum slider with a ViewLux impact-rated panoramic sliding system. The original jamb had rotted from decades of salt spray, so our crew rebuilt the rough opening with pressure-treated Dade County pine, flashed the perimeter with Vycor tape, and used a fusion-welded frame with white finish to match HARC’s pre-approved color. The electrical was fine, but the framing had to be sistered, and the homeowner approved that allowance line before we started. We inspect first, write allowances into the contract, and any surprise is priced and approved in writing before we touch it. Call (754) 238-2201 to schedule an inspection.
Yes, Key West’s Conch houses frequently have jalousie windows adjacent to sliding doors. Jalousie windows cannot be made hurricane-rated, so when a new impact slider is installed next to one, the jalousie remains a gap in the home’s wind envelope. HARC regulations complicate replacement because the new window must preserve the louvered appearance while meeting impact standards. We quote the jalousie replacement as a separate line item so you see the full scope before the sliding door work begins. If you are mid-project and just discovered this issue, call (754) 238-2201 and we will help you sequence the work properly.
We install PGT, CGI, CWS, and Ply Gem sliding doors that carry the necessary Miami-Dade NOA certifications and can be configured with the divided-light patterns and frame finishes HARC will approve in Key West’s historic districts. PGT’s impact sliders are the workhorse for standard openings. CGI makes a heavier frame for wide ocean-facing spans. CWS offers custom muntin profiles that replicate Conch house detailing. We quote manufacturer lines side by side on paper so you see exactly what each door costs and what it is rated for. Both warranty layers are registered in writing before the truck leaves your driveway. That is The Keystone Standard, and it is the same on every Key West job.
Contact TruePane Windows & Doors in Key West
When you are ready to price a sliding or patio door in Key West, call us at (754) 238-2201. A live person answers, any hour. We will schedule a site visit, measure the opening, check the framing, review the HARC status of your property, and give you a written line-item quote. The estimate is free. The numbers will be honest. If the pane is not true, the job is not done. That is the standard for every door we hang in Key West.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Key West and the Florida Keys.
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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