Door & window repair, statewide
Sliding Patio Door Repair
Large openings, heavy panels, and the hardware that has to carry them
Two-panel, three-panel, stacking and pocket patio doors. The bigger the opening, the more load sits on the rollers and the more obvious every millimetre of misalignment becomes. We repair the whole assembly, not just the panel that sticks.

Big patio doors fail differently to ordinary sliders
California builds for indoor-outdoor living more than anywhere else in the country, which means unusually wide openings, unusually heavy panels and multi-panel systems that have to stack or pocket cleanly. That is a lot to ask of hardware.
When one of these goes wrong, it rarely announces itself as a single fault. A panel drops slightly, so it drags; dragging wears the track; a worn track throws the interlock out; the interlock no longer seats, so the door leaks air and will not lock. By the time someone calls, there are four things to put right.
That is fine, and it is normal. But it does mean these doors need diagnosing as a system. Replacing rollers on a multi-panel door without checking interlocks, sill drainage and panel height gets you a door that drags again by next summer.
On a wide opening, a few millimetres of drop shows up as a door you have to fight.

Patio door work we take on
Two-panel, three-panel, four-panel, stacking, pocket and corner systems.
Multi-panel and stacking doors
Panels realigned so they stack squarely and the interlocks seat properly along the full height of the door.
Heavy-duty roller assemblies
Tandem and load-rated rollers for the weight a large patio panel actually carries, rather than the minimum the door shipped with.
Sill, track and drainage
Worn sills repaired or capped, and blocked weep channels cleared so rain drains out rather than backing into the room.
Multi-point and patio locks
Locks that will not throw, keepers out of line, and security upgrades on the largest opening in most houses.
Interlocks and weatherseals
The seals at the meeting stiles and jambs, which is where a patio door leaks air, dust and noise first.
Panel glass
Cracked and fogged panels reglazed in tempered safety glass, in your existing frames.
What California asks of a patio door
These doors are open more, larger, and more exposed than in most of the country.
Indoor-outdoor living is the point
Patio doors here are not a back door, they are a wall that opens. They get used constantly, left open for hours, and expected to close cleanly every time. That is a genuinely demanding duty cycle.
Wide openings magnify movement
The wider the door, the more a small amount of settlement or panel drop shows up at the closing edge. Openings that were dead square at build slowly rack, and a multi-panel door reveals it long before a single door would.
Sun on one elevation
A west or south-facing patio wall takes a punishing amount of sun. Vinyl components, seals and interlock gaskets go brittle years before their rated life, which is when the draughts and the dust start.
Why these doors need a specialist
Large sliding systems are fine adjustment work, not brute force.
We treat it as a system
Rollers, track, interlocks, sill drainage and panel height all get checked together, because fixing one in isolation rarely lasts.
Load-rated hardware
Components chosen for the actual weight of your panels, which is frequently more than the originals were specified for.
Repair over replacement
A multi-panel patio door is an expensive thing to replace and usually an unnecessary one.
Firm, written pricing
The number comes before the work, and it holds.
Three steps, no runaround
Tell us about the opening
How many panels, roughly how wide, and what it is doing. Photos of the full door help a great deal here.
We survey it properly
Panel height, interlocks, rollers, track and drainage, then a firm quote.
We put it right
Most work is completed on site. Glass and custom parts follow once they are made.
We are a mobile service covering the whole state. Pick your city below, or call and we will come to you.
Sliding Patio Door Repair Across California
Patio door questions
My three-panel door only drags at one end. Why?
The panel has dropped slightly or the track is worn along part of its run. On multi-panel doors the fault is often in a different panel to the one that feels wrong, which is why the whole assembly needs checking.
Water gets in at the bottom of my patio door. Is that the door or the glass?
Usually neither. Patio sills have weep channels that drain rainwater back outside, and when those block, water backs up into the room. Clearing and resealing the sill normally fixes it.
Can you repair a pocket patio door without opening the wall?
In most cases, yes. Pocket systems are designed to allow panel removal from the opening, and we only go further if the internal carriage has failed.
The panels do not meet properly any more.
The interlock has fallen out of alignment, usually because one panel has dropped on worn rollers. Resetting panel height brings the interlocks back together.
Are big sliding doors secure?
They can be made so. Anti-lift hardware, auxiliary locks and correctly seated interlocks make a substantial difference on a wide opening.
Other repairs we handle
Doors and windows are all we do, so whatever has failed, it is probably on this list.
Get the patio door working properly
Free estimates on patio doors of any size, anywhere in California.
(213) 799-2897