Sliding Glass Door Repair in Florida

Almost every call about a sliding door starts the same way. It takes two hands, or a shoulder, or a foot braced against the frame. That is not a strength problem and it is not the house settling. A slider carries its entire weight on two, sometimes four, small wheels at the bottom of the panel. Each wheel is a nylon or steel tire on a sealed bearing, riding a strip of aluminum about an inch wide. When those bearings seize, the wheels stop turning and the panel starts dragging, so you are no longer rolling 90 to 150 pounds of glass, you are sliding it across metal. A door that needs two hands is a roller job.

Sliding doors are the largest single share of the US patio door market, 43.4 percent of revenue in 2024 according to Grand View Research. In Florida they are how a house opens onto a patio, a lanai, or a condo balcony, which means the same door is also the one taking the salt, the sand, the sun and the storm shutters year after year. It is the busiest moving part in the building envelope and the one nobody services until it stops.

Two things kill sliders here, and they are not the same thing. Within a few miles of either coast the problem is corrosion. Salt-laden air attacks the steel inside roller bearings and pits the aluminum track, and a bearing that has rusted internally will not turn no matter how clean you keep the track. That is why stainless rollers are specified near the water and plain steel ones are not, and it is why the first thing we ask is the address. What we will not do is publish a number of months for how long a roller lasts by the beach. The figures in circulation come from competitor marketing pages, they contradict each other, and none of them cites a test. The mechanism is real. The countdown is not something anyone has measured honestly.

The other killer is grit, and it works everywhere in the state. Sand, lawn clippings and construction dust land in the bottom track, and every pass of the door grinds them into the aluminum. It behaves like a lapping paste. Over a few years it cuts a shallow groove down the travel path, and once there is a groove the roller rides on its edges instead of its face, wears unevenly, and starts climbing out. That is why a track is usually worn only across the four or five feet the door actually travels and looks new at the ends. It is also why a stiff brush and a vacuum in the track twice a year does more for the hardware than anything else you can do without tools.

A worn track does not usually mean a new door. A stainless steel track cap is a thin channel set over the damaged aluminum, bedded down and fastened, giving the rollers a fresh hard flat surface to run on. The part itself is inexpensive, a six foot cover retails around $11 and an eight foot stainless repair cap around $37, and the value is entirely in the fit. A cap laid on a dirty or uneven track telegraphs every flaw underneath and the door feels wrong again within a year. Replacing the track itself instead of capping it means taking the frame apart, and that crosses out of repair and into replacement, with the permit and product approval that come with it.

Yes, the door comes out of the frame. There is no way to change rollers otherwise. The panel is lifted straight up into the head channel, which is cut deep enough to swallow it, then the bottom swings clear into the room and the panel lifts out. It goes back the same way. A standard six foot residential panel is roughly 90 to 130 pounds and takes two people to handle safely. A laminated impact panel can exceed 150 pounds, which is why impact doors get two technicians, suction cups and a padded landing spot rather than a wall to lean against.

A door that will not lock is usually not a broken lock. The mortise lock in a slider throws a hook into a keeper mounted on the jamb, and that hook only reaches the keeper if the panel is sitting at the height it was set at. Dead rollers let the panel drop a quarter of an inch, the hook lands under the keeper instead of inside it, and the door will not latch. Replace the rollers, set the height, and the lock starts working again with no new lock parts. When the lock genuinely is the problem, a snapped hook, a seized cylinder, a bent keeper, the part and the labor sit inside the $125 to $300 band.

There are doors we tell people not to repair. If the frame is racked or bent, new rollers feel right for about a month, because the panel is running in an opening that is no longer a rectangle and the rollers go back to taking the load unevenly. A frame can sometimes be shimmed back into square and sometimes it cannot, and $400 spent on a door that needs replacing is $400 gone. The same goes for a fogged insulated glass unit, which is a failed edge seal and is fixed by replacing the glass, not by treating it, at $250 to $600 for the panel. Corrosion that has eaten through the sill, a fixed panel loose in its frame, or a door you are already planning to make impact rated are all cases where the money belongs in the replacement, not in the repair.

The code matters here more than most people expect. Sliding glass doors are glazed openings. In the Wind-Borne Debris Region, and in the High-Velocity Hurricane Zone that covers Miami-Dade and Broward counties, exterior glazed openings have to be impact resistant or protected. Florida Building Code Residential section R301.2.1.2 points glazed openings at TAS 201, 202 and 203 or at ASTM E1886 and E1996, with the large missile test applying within 30 feet of grade and the small missile test above it. Garage doors fall under the same rule and a different test standard, ANSI/DASMA 115. So a slider and a garage door face the identical requirement to protect the opening, and anyone telling you they are tested the same way is wrong about the detail.

Replacement brings a permit and a product approval with it. A permit is required for impact window and door installation in effectively every Florida jurisdiction, and the unit has to carry a Florida Product Approval, or in Miami-Dade a Notice of Acceptance. An NOA unit carries a permanent label reading Miami-Dade County Product Control Approved, and the full NOA has to be available at the job site if the building official asks for it. Two further rules catch homeowners by surprise. In Miami-Dade and Broward you cannot pull a permit to put a non impact unit back into an opening. And the 25 percent rule means that if you replace more than a quarter of the total glazed opening area of the house inside twelve months in the WBDR or HVHZ, every replacement unit has to meet current impact standards. A three panel slider is a large share of the glass in a small house, so that rule bites harder on sliders than on windows.

Now the licensing, stated plainly. Florida removed glass and glazing from the mandatory state license types in 2012, so hardware repair and non structural glass work do not require a state contractor license. Installing doors and windows, and anything structurally anchored into the opening, still requires a Division I contractor license or an appropriate specialty license, and counties and cities may require a local license on top of that. The line does not run between small jobs and big jobs. It runs at the anchors. Rollers, tracks, handles, locks, weatherstrip and screens sit on the repair side of it. Pulling the assembly out of the wall does not. Repairs are done by our technicians. Replacements go to a licensed partner contractor who pulls the permit under their own license, and whose product approval or NOA goes on that permit. We do not print a license number on this page, and a number printed on any website proves nothing on its own. Ask for it in writing on the quote and look it up in the DBPR license search before work starts.

Whether a specific repair needs a permit is a local question and worth one phone call. The consistent position across Florida jurisdictions is that servicing hardware does not trigger a permit and replacing the assembly does, because the permit attaches to altering the opening and its ability to carry wind load rather than to changing a wheel. Building departments do set their own rules, so if you want certainty before we arrive, call yours and ask about hardware repair on an existing slider.

What a fair price looks like, and what a bait quote looks like. Labor in this trade runs $60 to $150 an hour, and most companies carry a minimum service charge of $100 to $250, so a truck, a technician and an hour on your patio already accounts for most of a $150 to $400 roller job before a single part goes in. That arithmetic is why a $69 roller special cannot be the finished price. It is a door opener, and the number moves once the panel is out and your door is lying on the living room floor. A real quote names things: how many panels, which roller is going in and whether it is stainless, whether the track is being cleaned, capped or replaced, whether the lock and keeper are included, and what the price does if the frame turns out to be racked. A quote that is one number and a promise is not a quote.

What this service does not cover, so nothing is a surprise. We do not enlarge or alter openings, which is structural work for a general contractor. We do not install impact doors ourselves, because that is permitted, product approved work that belongs to the licensed partner. We do not service French doors, swing patio doors, frameless shower doors or storefront glass. We do not reseal a fogged insulated glass unit, because that repair does not exist. And we do not quote a replacement sight unseen, because the panel count, the opening size and whether you sit inside the HVHZ move that number by thousands of dollars.

Key benefits

Our process

1. Diagnose on the panel, not on the phone. We slide the door end to end, lift it to check play in the rollers, look down the track for a groove, and test the lock against the keeper. Two minutes of that tells us whether this is rollers, track, height, or a frame that is out of square.
2. Take the panel out safely. The panel lifts into the head channel and swings clear at the bottom. Two technicians and suction cups on anything impact rated, blankets and a prepared landing spot inside, never a wall or a tile floor.
3. Clear the track and decide on it. Years of sand, grit and old lubricant come out of the bottom track first, because you cannot judge aluminum you cannot see. Then we show you the groove, if there is one, and tell you whether it takes a stainless cap or has gone past capping.
4. Set the new rollers, not just fit them. Rollers go in matched to the door brand and to the coast, then both adjustment screws are set so the panel sits plumb to the jamb and level in the opening. A roller fitted without setting the height is half a repair.
5. Lock, keeper and weatherstrip. The hook is aligned to the keeper and the keeper reset if it has moved, the handle is refitted or replaced, and the brush pile weatherstrip is replaced where it has flattened, because that is where the water and the noise come in.
6. Rehang, test and hand back. The panel goes back, we run it end to end at least twenty times, lock and unlock from both sides, and walk you through what was replaced and what we found. The price you were quoted is the price on the invoice.

Sliding Glass Door Repair: FAQs

How much does sliding glass door repair cost in Florida?

Most repairs land between $150 and $400. Roller replacement is $150 to $400, track repair or capping added to a roller job is $175 to $400, and a handle or lock replacement is $125 to $300. A glass panel is $250 to $600. Labor across the trade runs $60 to $150 an hour with a minimum service charge of $100 to $250, which is why the very cheap advertised specials never survive contact with the actual door.

My door takes two hands to open. Is that the rollers?

Almost always, yes. The panel rides on two to four small wheels on sealed bearings. When the bearings seize the wheels stop turning and the panel drags along the aluminum instead of rolling on it, which is exactly the resistance you are feeling. It is a hardware failure, not a sign that the door is too heavy or that you need to be careful with it.

How long does a sliding door repair take?

One to two hours for a typical roller and track job on a two panel door. A four panel slider, a pocket door, or a track that needs capping across its full length takes longer. If the frame turns out to be racked we stop and talk to you before spending your money, rather than finishing a repair that will not hold.

Does the door have to come out of the frame?

Yes. The rollers are underneath the panel and there is no way to reach them otherwise. The panel is lifted up into the head channel, swung out at the bottom, and set down inside on blankets. A standard six foot panel is roughly 90 to 130 pounds and a laminated impact panel can exceed 150 pounds, so it is a two person lift and we send two technicians for impact doors.

Can a worn track be repaired, or does the whole door have to go?

Most worn tracks can be capped. A stainless steel cap is a thin channel set over the damaged aluminum so the rollers run on a fresh hard surface again, and it costs far less than opening the frame. It is not a fix for every track. If the aluminum is cut through, corroded away at the sill, or the frame is bent, capping only hides the problem and we will tell you that instead of selling it.

What happens if the frame is bent or out of square?

New rollers will feel correct for a few weeks and then the door goes back to dragging, because the panel is running in an opening that is no longer rectangular and the load returns to one corner. Sometimes the frame can be shimmed and squared. When it cannot, repair is money spent twice, and the honest answer is replacement. We tell you which one you have while the panel is out and you can see it.

When is a sliding door not worth repairing?

Four situations. A frame that is bent or racked past shimming. A sill corroded through, which is common close to the water. An insulated glass unit fogged between the panes, which is a failed seal fixed only by replacing the glass. And a non impact door in the HVHZ or the Wind-Borne Debris Region that you already intend to make impact rated, where repair money is spent on a door you are about to remove.

Do I need a permit to repair my sliding glass door?

Servicing hardware, rollers, tracks, handles, locks, weatherstrip and screens, does not trigger a permit in Florida jurisdictions as a rule, because a permit attaches to altering the opening and its ability to carry wind load. Replacing the door assembly does require one. Building departments set their own rules, so if you want certainty, call yours and ask about hardware repair on an existing slider before we arrive.

Does sliding door repair require a contractor license in Florida?

Repair generally does not. Florida removed glass and glazing from the mandatory state license types in 2012, so hardware repair and non structural glass work do not require a state contractor license, though a county or city may still require a local one. Installing a door assembly anchored into the opening does require a Division I contractor license or an appropriate specialty license. Repairs are done by our technicians, and replacements go to a licensed partner contractor who pulls the permit under their own license. Ask for the license number in writing on your quote and look it up in the DBPR license search, whoever you hire.

What does a full sliding glass door replacement cost?

A non impact slider is $1,200 to $4,000 installed. An impact rated two panel unit is $2,500 to $5,000, and a three or four panel impact slider is $4,000 to $9,000. Large architectural units run higher again. The gap between a $300 repair and a $4,000 replacement is why we would rather diagnose the door properly than quote either one over the phone.

If I replace my slider, do I have to go impact?

In Miami-Dade and Broward, which are the High-Velocity Hurricane Zone, yes. Once a permit is pulled you cannot put a non impact unit back into the opening. Elsewhere in the Wind-Borne Debris Region the opening has to be impact resistant or protected, so shutters remain an option on some units. The 25 percent rule also applies: replace more than a quarter of the total glazed opening area of the house within twelve months and every replacement unit has to meet current impact standards. A three panel slider is a large share of the glass in a small house, so that rule catches sliders more often than windows.

Is an impact slider covered by the same code as a garage door?

Same rule, different test. Both are openings that have to be impact resistant or protected in the Wind-Borne Debris Region and the HVHZ. A sliding door is a glazed opening tested to TAS 201, 202 and 203 or to ASTM E1886 and E1996, with the large missile test applying within 30 feet of grade. Garage doors are tested to ANSI/DASMA 115. Both need a Florida Product Approval, or a Miami-Dade Notice of Acceptance inside that county.

Why does my door fail so much faster near the beach?

Salt air corrodes the steel inside roller bearings and pits the aluminum track, and a bearing rusted on the inside will not turn no matter how clean the track is. That is why stainless rollers are specified near the water. We will not quote you a number of months, because the figures floating around online come from marketing pages that disagree with each other and cite no testing. What we will do is put the corrosion resistant part in when your address calls for it.

What should a fair quote include, and what does a bait quote look like?

A fair quote names the panel count, the specific roller going in and whether it is stainless, whether the track is being cleaned, capped or replaced, whether the lock and keeper are included, and what happens to the price if the frame is found to be racked. A bait quote is one low number with none of that behind it. With labor at $60 to $150 an hour and minimum service charges of $100 to $250, an advertised price well under $150 is a way through your front door, not a price for the work.