San Bernardino Window Replacement is a leading San Bernardino County installer for patio door replacement in San Bernardino, CA, specializing in dual-pane sliding glass doors, hinged French doors and single-leaf garden doors set into the existing opening. We offer vinyl, aluminum and clad-wood door frames and tempered Low-E glass to match new windows.
Our team provides full tear-out of the old slider down to the slab, delivering smooth-rolling, tightly latching doors for homes and repeatable, inspected installs for both residential and commercial projects. We measure the opening ourselves, name the frame, the glass and the sill detail in a written scope, and flash the threshold with a sill pan that is water tested before the interior trim goes back, so the door and window package you sign for is the one installed.
From the handedness of the operating panel to the sill pan, the locks and the last piece of casing, our team handles every detail. Serving San Bernardino, Rancho Cucamonga, Upland and Claremont, we replace the door you have with the door you should have had.
Why San Bernardino Window Replacement
The installer who measures your openings is the one who sets the new windows, from the first visit to the final walk.
Patio door replacement in San Bernardino starts with one decision: keep a slider, or swap to a hinged door in the same opening. Both fit the rough opening a 1960s or 1970s slider already occupies, so the wall is not widened and the header stays as it is. Widening the opening for a wall of panels is a different job with its own page.
Two or more panels in one frame, at least one of them sliding. Handedness is read from outside: O is the fixed panel and X the sliding one, so an OX door slides on the right. A slider takes no floor space to open, which suits a narrow patio or a room with furniture near the glass.
Two side-hinged leaves that meet with no fixed center post, so the whole opening clears when both swing. Hinged doors seal more tightly than typical sliders, because the leaf closes onto weatherstripping instead of gliding past it.
One operating leaf beside a fixed glass panel. It looks like a French door from the yard, but because only one leaf moves and its latch sits at the jamb, it is the more secure of the hinged choices.
Most slider complaints in San Bernardino come from rollers and tracks worn past repair. The steel rollers that ride in the track and the locking hardware are the parts a sliding door wears out first, and on an original aluminum door the track itself is often pitted or bent. Valley dust makes it worse: Santa Ana winds come down through Cajon Pass carrying grit that settles in the bottom channel and grinds the rollers every time the door moves.
New rollers in an old door can buy a season. They do not fix a bent track, a single-pane panel, a frame that has racked out of square or a latch that no longer meets its keeper. That is why this page is about replacing the whole unit, frame and all, rather than chasing parts.
The sill pan keeps water out of the slab edge and the wall. It is concealed flashing set under the door threshold, turned up at the back and the ends, so any water that gets past the sill drains outward instead of into the framing or the floor. Many original sliders in older San Bernardino tracts went in without one, sitting on the slab with a bead of caulk, and the stained carpet or swollen baseboard beside the door is what that looks like after enough sprinkler seasons.
Material choice matters at the sill. Aluminum flashing should not sit against pressure-treated wood or wet plaster and mortar, which is exactly what surrounds a door in a stucco wall, so the pan is a compatible material or isolated from those surfaces.
Where the patio slopes toward the house, we note it on the scope, because no door sill should be asked to hold back standing water.
Door glass must be safety glass. US codes require tempered or laminated glass in sliding doors, and San Bernardino County's glazing rules extend safety glazing to a panel within 24 inches of either side of a door and to glass facing a pool or spa when its bottom edge is lower than 60 inches above the walking surface. A sidelite beside a new French door, or a fixed panel next to a pool, falls under those rules.
Tempered glass is about four times as strong as ordinary annealed glass and breaks into small, blunt pieces. Laminated glass holds together when it breaks, which some owners prefer on a door facing a side yard.
Heat is the other half. A west-facing slider on a valley ranch house takes the full afternoon sun. Every NFRC door label states the U-factor and the solar heat gain coefficient for that door's glass configuration, and we write both on your quote. A dual-pane Low-E package with a low SHGC is the one that keeps a family room usable in August, and the label stays on the glass for the final inspection.
The process
We measure the opening, check the slab and the header for square, and walk you through slider, French and garden door options with frame and glass samples.
San Bernardino County requires a building permit for every exterior door replacement. The scope names the door, the handing, the glass package with its label values, the sill pan and the trim.
The old door comes out whole, the opening is cleaned to the slab, the pan goes in and the new unit is set, shimmed and fastened.
Sill water test, lock and roller adjustment, trim and stucco touch-up, then a walkthrough of operation and the written warranty.
Patio door replacement in San Bernardino is typically estimated at roughly $1,500 to $6,000 per door installed, depending mostly on the door type, its size and the frame material. Most owners replace a patio door alongside the windows in the same rooms, which is where one scope and one permit make sense. What moves the price:
These numbers are estimates, and they are subject to change with product pricing and the condition of the opening. Your written quote, written after the free in-home measure, sets the final price. Landlords and HOA boards replacing patio doors across several units can send a unit count and door sizes for a bid.
Also from our installers
Questions
Keep a slider if the patio is narrow or furniture sits near the glass, since it opens without swinging into the room. Choose French doors if you want the whole opening clear and a tighter seal. Both fit the opening you already have.
Rollers alone rarely last on an original aluminum door, because the track, the frame and the glass are worn too. We quote the whole door replaced, frame and sill pan included, which is the fix that stays fixed.
Yes. San Bernardino County requires a building permit for every exterior door replacement, and the NFRC label must be on the glass at final inspection. The permit is listed on our written scope.
A sill pan under the threshold is the part that stops it, and it is set and water tested before the trim goes on. If the patio itself slopes toward the house, we tell you, because grading is the other half of that problem.
It has to be safety glass, tempered or laminated, by code. Glass beside the door within 24 inches, or facing a pool low to the ground, needs it too.
The factory lead time and the install day are written on your quote once the door is chosen. Most of the wait is the order; the swap itself is planned so the house is never left open overnight.
Yes. The frame material, color and glass package can be specified to match a window replacement in the same rooms, and doing both under one permit is usually the better plan.
Yes. Property managers and HOA boards can send a list of units and door sizes, and we price one door specification with a phased schedule around residents.
Homeowners get a free measure at the house. Boards, managers and contractors can send plans or an opening count for a bid.
Calls only, we do not receive text messages.
