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Before
After
Before
After
Before
AfterPatio Door Installation Done Right, Nationwide
Patio door installation decides whether the doorway to your yard is a pleasure or a daily argument. A patio door set out of square drags on its track, whistles in a crosswind, and lets water creep under the sill the first time it rains hard. Most patio door installations across the country run between $1,800 and $5,000 installed, depending on size, glass, and whether the opening needs new framing. Lightwell Windows & Doors has been installing patio doors since 2010, and when you call (562) 478-8017, a live person answers. No recording, no menu, no waiting on hold.
Every installation is covered by the 365-Day Done Right Promise: if the finished work is not right, we make it right. Before any work begins, you get a written price with every line item spelled out. That is the Cedarwell Care Promise, and it has been our standing rule since day one. Our crews serve homeowners across the United States, and the same team you meet at the estimate is the team that shows up on installation day.
A light well pulls daylight deep into a building. A well-installed patio door does the same for a room: it opens the house to the yard when you want it, shuts the weather out when you don’t, and glides like it was always meant to be there. Learn more about our home services, or call us directly for a free estimate.
What Patio Door Installation Includes
Patio Door Installation means fitting a new door unit into an exterior opening that leads to a deck, patio, balcony, or yard. That can be a sliding door, a hinged French-style unit, or a multi-panel system. The job covers far more than setting a frame in a hole. We measure the rough opening, remove the old door, inspect the framing and subfloor, flash the sill, set the unit plumb and level, foam and seal the gaps, hang the panels, and test the lock and track before we leave.
Why the Rough Opening Matters Most
The door only performs as well as the opening it sits in. A header that has sagged a quarter inch or a sill that has softened from old leaks will show up as a binding panel within a year. We check the opening in three places plus the diagonals before we order anything, so the door you buy is the door that fits.
Sliding or Hinged
A sliding unit saves floor space and suits a room where furniture sits close to the opening. A hinged pair gives a wider clear opening and a classic look but needs room to swing. We talk through both options before quoting, because the right answer depends on the room, not on what is easiest to install.
Patio Door Repair
Patio Door Repair fixes the problems that make a door hard to use before they turn into a full replacement. You call for it when the door sticks, the latch no longer catches, the handle spins loose, or a draft comes through a gap that was not there last year. Most repairs involve a worn part rather than a failed door: a roller, a lock mortise, a weatherstrip, or a bent track. Lightwell Windows & Doors diagnoses the real cause, shows you the problem, and fixes it. Patio door repairs typically run $150 to $600.
Rollers, Locks, and Seals
Rollers wear flat after years of carrying the panel weight, and a flat roller makes the door feel like it is dragging a chain. Replacing a set restores the glide for a fraction of the cost of a new door. Lock hardware fails more slowly, but a latch that needs a shove to engage leaves the house less secure. Worn weatherstrip is the cheapest fix of all and often the most noticeable on a cold night.
When Repair Stops Making Sense
If the frame has rotted, the glass seal has failed and fogged the pane, or the repair would cost more than half of a new unit, we say so plainly. You get the numbers for both options in writing, and the choice stays yours.
Sliding Door Repair
Sliding Door Repair focuses on the track, the rollers, and the lock, the three places where nearly every slider fails. Grit, pet hair, and paint overspray pack into the track, and the panel starts to grind. Bent aluminum rails and worn-out rollers make it worse. We clean the track, straighten or replace the rail where we can, swap rollers for the correct load rating, and adjust the panel height so the door moves with two fingers instead of two hands. Most sliding door repairs land between $175 and $550.
Why a Slider Jumps Its Track
A panel that pops out of the track is usually riding on rollers that have lost their adjustment or an upper guide that has worn away. Pushing harder never fixes it. We reset the height, replace the worn parts, and confirm the panel stays seated through a full run of open and close cycles.
Patio Door Replacement
Patio Door Replacement removes a worn-out unit and installs a new one in the same opening. It is the right call when the frame has warped, the glass has fogged between the panes, water has started to rot the sill, or the door no longer locks with confidence. Because the opening already exists, replacement is usually faster and cleaner than a brand-new installation. Expect to pay between $1,800 and $4,200 for most replacements, with impact-rated glass or custom sizing pushing the number higher.
Upgrading Glass While We Are There
An old patio door is often the largest sheet of single or poorly sealed glass in the house. Low-E coatings cut heat gain on a west-facing room, argon fill improves winter comfort, and tempered or impact-rated glazing matters in storm country. Replacement is the cheapest moment to make that upgrade.
Sliding Door Replacement
Sliding Door Replacement swaps an aging slider for a new panel system that rolls smoothly and seals tight. We remove the old frame, inspect the rough opening for water damage, and set the new unit with shims and low-expansion foam so it stays square for years. Replacement sliders usually run $1,800 to $3,800 installed. If the track and frame are still sound and only the glass has failed, we price a glass-only option so you do not pay for more than you need.
Matching the Opening You Already Have
Most sliders can be replaced with a unit of the same size, which avoids reframing and keeps the interior trim intact. When you want a wider opening or a different panel layout, we quote the framing work as its own line so the cost is clear.
Sliding Door Installation
Sliding Door Installation puts a new slider into an opening that never had one, or into a wall opening being widened for more light and a better view of the yard. This job needs a header sized to carry the load, a flashed and pitched sill, and a frame set plumb in both directions. New installations typically run $2,500 to $5,500 for standard patio sizes, and more for wide multi-panel systems.
Framing and Flashing
When a wall opening is cut or widened, the header comes first. We size it to the span and the load above it, then flash the sill pan before the door goes in. That hidden layer keeps water out of the wall for the life of the door, and skipping it is the most common reason new patio doors rot early.
Finishing Touches
Once the unit is set, we foam the gaps, caulk the exterior with weather-rated sealant, install the lock and handle, and trim the interior to match the room. Then we run the door through repeated open and close cycles until it moves without a sound.
Related Door and Window Services
A patio door project often leads to other work around the house. If the main entry is showing its age, our front door replacement service covers the full swap from old slab to new, sealed, and tested. For interior and exterior openings of every kind, see our general door replacement page. And if the windows beside your patio door are fogged or stuck, our window repair team can handle them on the same visit. Many customers schedule everything together to save a trip.
Signs You Need a Pro Right Now
- The door drags or jumps the track. A panel that grinds or pops out is riding on worn rollers or a damaged rail. Forcing it bends the track further and turns a small repair into a replacement.
- Fog between the glass panes. That haze is a failed seal. The insulating gas has escaped, and no amount of cleaning will clear it. The glass or the whole unit needs to be replaced.
- Water stains near the threshold. Water that reaches the interior floor is getting past the sill or the frame corners. Left alone, it rots the subfloor and the trim.
- The lock does not line up. A latch that needs a shove to engage means the panel has shifted in its frame. A door that does not lock tight is a security problem.
- A draft you can feel on your hand. If you can feel air at the edges with the door closed, the weatherstrip has failed or the frame has moved. Your energy bills are paying for it every month.
Our Process, Step by Step
- 1
Measure and inspect. We measure the opening in three places plus the diagonals, then check the header, the sill, and the subfloor. The estimate is based on what we see, not a guess over the phone.
- 2
Written price, no surprises. You receive a line-item price before any work starts. The door, hardware, labor, disposal of the old unit, and any trim or flashing are listed separately. The number you sign is the number you pay, unless you ask for a change yourself.
- 3
Protect the house, then remove the old door. Drop cloths go down from the opening to the truck and shoe covers go on. We ask before moving anything near the opening. Then the old unit comes out carefully, so the surrounding trim and drywall are not damaged.
- 4
Install, seal, and level. The new door goes in plumb in both directions with the sill pitched to shed water. We foam the gaps, caulk the exterior, and test the door through ten full open and close cycles. Anything that binds or rattles gets fixed before we pack up.
- 5
Clean up and walkthrough. We clean like it is our own home, then walk you through how the lock, track, and weatherstrip work and what the warranty covers. After that you have our number, answered by a person, 24/7.
How Much Does Patio Door Installation Cost?
Patio door pricing across the country falls into clear bands. Repairs to rollers, locks, and seals run $150 to $600. A like-for-like sliding door replacement lands between $1,800 and $3,800. A hinged or French-style patio unit runs $2,000 to $4,500. A brand-new sliding door installation that needs framing work typically costs $2,500 to $5,500, and wide multi-panel systems can go higher. These figures are installed prices with labor, basic hardware, and disposal included, not bare door panels.
The biggest variables are the size of the opening, the glass package, and what is hiding behind the old frame once it comes out. Rotted framing adds labor, and with line-item pricing you will see that cost before it is done. To avoid overpaying, get a written estimate that separates the door, hardware, labor, and disposal, then compare like with like. Our estimate is free, with no obligation and no pressure to sign the same day.
Where We Work
Lightwell Windows & Doors serves homeowners and businesses across the United States through local crews who understand the climates they work in. Each location is independently owned and operated, carries the Cedarwell Care Promise, and answers the phone with a live person around the clock. No national call center and no subcontractor roulette.
Frequently Asked Questions About Patio Door Installation
A like-for-like patio door replacement usually takes half a day to a full day. A new opening that needs a header and framing can take two days. Call (562) 478-8017 and describe your door, and we will give you a realistic time frame at the estimate.
Most installed patio doors run between $1,800 and $5,000. Like-for-like sliding door replacement sits near the low end, while new openings, wide multi-panel systems, and impact-rated glass push toward the top. Every estimate from Lightwell Windows & Doors is free and written line by line before any work starts.
Repair makes sense when the frame is sound and the problem is a roller, a lock, or a seal. Replace when the frame is warped or rotted, the glass has fogged, or repair would cost more than half of a new unit. We give you both prices in writing so you can compare.
Yes. Cutting a new opening needs a properly sized header, framing, and a flashed sill. We handle the framing and quote it as its own line item. Some areas require a permit for structural work, and we tell you what applies to your home.
Every job is covered by the 365-Day Done Right Promise: if the finished work is not right, Lightwell makes it right. The door itself carries the manufacturer’s warranty, and we explain what it covers during the walkthrough. If something feels off after the install, call and a real person answers.
Clear the path from the opening to the driveway and move furniture about six feet back from the door. Keep pets in a closed room, since the opening will be open for part of the day. Tell us about nap times and we will plan the noisy work around them.
Schedule Your Patio Door Installation Today
Call (562) 478-8017 to schedule a free, no-obligation estimate for your patio door installation. A live person answers, day or night. We listen first, then give you a written price before any work starts, with the Cedarwell Care Promise behind every job. A patio door should open to the yard easily and close tight against the weather every single day.
Lightwell Windows & Doors, serving homeowners across the United States since 2010.