Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Before
After
Before
After
Before
AfterHow Much Does Patio Door Installation Cost in Los Angeles?
Patio door installation in Los Angeles typically runs $2,400 to $8,500 for a single unit, with the most common sliding glass door replacement landing around $3,200 to $4,800 installed. French doors sit higher, usually $4,000 to $9,500, because of the second panel, the heavier frame, and the finish carpentry on both sides. Those numbers include the door, the labor, the permit where Los Angeles requires one, and haul-away of the old unit.
We’re Westlight Windows & Doors. We’ve been installing doors and windows since 2009, and we’re an independently owned and operated Kingswell location. Before any work starts, every homeowner gets a written price. No door-step surprises, no revised invoices.
Key Takeaways
- Most Los Angeles patio door replacements land between $3,200 and $4,800 installed.
- Your biggest cost lever is the door material: vinyl, aluminum, fiberglass, or wood.
- Los Angeles permits and HOA approvals can add $150 to $600 and a few weeks of lead time.
- Impact-rated and energy-efficient glass costs more up front, and often pays some of it back.
- Free estimates are part of the deal. Call (903) 354-7134 and a real person picks up.
Patio Door Installation Cost Breakdown (2026)
Here’s how a Los Angeles patio door job actually breaks down. These ranges reflect what we see quoted and installed across the city in 2026, from the flats of Koreatown to the hills above Studio City.
| Line Item | Typical Range |
|---|---|
| Door unit itself (sliding glass, vinyl or aluminum) | $900 - $2,800 |
| Door unit itself (fiberglass or wood French) | $1,800 - $5,500 |
| Professional labor and installation | $800 - $2,200 |
| Old door removal and haul-away | $100 - $250 |
| Los Angeles permit (when required) | $150 - $450 |
| Framing or header repair (rot, water damage) | $300 - $1,800 |
| Stucco or siding patching after removal | $250 - $900 |
| Screen door or retractable screen | $120 - $600 |
| Glass upgrade: low-e, argon, laminated, or impact-rated | $200 - $1,200 |
| Interior trim, casing, and paint touch-up | $150 - $500 |
A standard replacement into an existing opening, where the frame is sound and the new door drops into the same footprint, sits at the low end. That’s why a basic vinyl slider in a sound opening can come in around $2,400 to $3,000. The moment we’re reframing, replacing rotted wood, or patching stucco, the number moves up, and it should. That work is what keeps the door from leaking in year three.
French doors and multi-panel units cost more because there’s twice the door and twice the labor. A four-panel sliding or folding system in a Hancock Park or Silver Lake addition can run $9,000 to $14,000 once you account for the wider opening, the structural work, and the finish on both sides. If you’re weighing that against a straight replacement, we lay it out plainly in our Patio Door Installation in Los Angeles guide so you can see which path fits your house and your budget.
What Drives the Price Up or Down
Three things move the number more than anything else: the door material, whether the opening has to change size, and the condition of the wall around it. A sound opening with a good frame keeps you near the bottom of the range. A rotted sill, a cracked stucco surround, or a header that needs sistering pushes you toward the top. We check all of it before quoting, not after.
What Affects Patio Door Installation Pricing in Los Angeles
- Door material. Vinyl is the most affordable and holds up well in Los Angeles sun. Aluminum is light and slim. Fiberglass resists dents and heat better and costs more. Wood looks the best and asks the most, both up front and in upkeep.
- Glass package. Low-e glass (a thin coating that reflects heat back out of the room in summer) is standard on most of what we carry. Argon fill, laminated glass for noise, and impact-rated glazing each add cost. In a city that bakes from May through October, the upgrade usually earns its keep.
- Los Angeles permits and HOA approval. Door replacements that change the opening, affect the header, or sit in a designated historic district often need a city permit. Many HOAs also require approval of the door style and color before installation. We’ve installed in enough Los Angeles HOAs to know what they ask for, and the paperwork is on you to file, but we’ll tell you what you need.
- Where the door sits on your house. A door under a wide eave or in a shaded courtyard sees less weather than one on a fully exposed south-facing wall. That matters for how long the seals and the finish last, and it’s a factor in what we recommend for your opening.
- Stucco and wall repair. Most Los Angeles homes are stucco, and stucco doesn’t like being disturbed. Pulling a door out of a stucco wall almost always means patching, and that patch has to be matched and painted. We budget for it in writing so it doesn’t surprise you.
- Coastal versus inland exposure. If you’re near Santa Monica or Venice, salt air and marine moisture are hard on hardware and fasteners. We spec stainless or marine-grade parts there. In the Valley, heat and UV are harder on seals and finishes. Two different problems, two different recommendations.
Sliding vs. French vs. Folding: Price at a Glance
| Door Style | Installed Range |
|---|---|
| Sliding glass door (vinyl or aluminum) | $2,400 - $4,800 |
| Sliding glass door (fiberglass or wood) | $3,800 - $7,500 |
| French doors (double, wood or fiberglass) | $4,000 - $9,500 |
| Multi-panel sliding or folding system | $9,000 - $14,000 |
We carry eight manufacturer lines, including PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. That range is deliberate. A beach-adjacent house in Playa del Rey calls for different hardware than a valley home in Sherman Oaks, and we match the product to the house instead of forcing the house to fit one brand.
How to Save on Patio Door Installation
There’s no secret handshake. The savings come from a few practical choices, and a few things you should never cut.
- Reuse the existing opening when you can. If the frame is sound and the rough opening matches, you skip the reframing and much of the stucco work. That alone can keep you $500 to $2,000 lower.
- Stay with standard sizes. Custom sizes are made to order and cost more. Many Los Angeles homes already have a standard 6-foot or 8-foot slider opening, and matching it saves money.
- Trim the glass upgrades to your actual exposure. Low-e is worth it nearly everywhere here. Laminated glass for sound is worth it if you’re near a freeway. A full impact-rated package is worth it in some zones and overkill in others. We’ll tell you honestly which applies to your address.
- Bundle the work. If you’re replacing windows too, doing both in the same visit cuts labor and mobilization. Same crew, same day, no second setup.
- Get your HOA approval before you order. A door that shows up and doesn’t match the approved architectural style is a door that sits in a warehouse. Do the paperwork first.
- Ask for the written price up front. Our estimates are free, and the number you get is the number you keep. Call (903) 354-7134 and we’ll put it in writing.
When Repair Beats Replacement
Sometimes a patio door doesn’t need replacing. A worn roller, a misaligned track, or a sagging latch can often be fixed for a fraction of the cost of a new unit, and we’ll say so. But if the frame is rotted, the seal is gone, or the glass has failed and fogged between the panes, you’re better off replacing it. Westlight installs and replaces doors and windows. That’s the scope, and we’ll tell you straight if a repair is the smarter call.
Frequently Asked Questions About Patio Door Installation Cost
How much does patio door installation cost in Los Angeles?
A standard sliding glass door replacement in Los Angeles runs $3,200 to $4,800 installed, and the full range across all door types is $2,400 to $8,500. French doors typically land between $4,000 and $9,500. The final number depends on the door material, the glass package, and whether the opening needs repair. Call (903) 354-7134 for a free written estimate that reflects your actual house.
Is it cheaper to repair or replace a patio door?
Repair usually costs less, often $150 to $500 for a new roller, track, or latch, and it’s the right call when the frame and glass are sound. Replacement becomes cheaper in the long run once the frame is rotted, the seals have failed, or the glass is fogged between the panes, because patching one problem on a failing door often just moves the leak somewhere else. Call (903) 354-7134 and we’ll tell you which one your door needs.
How much does it cost to replace a sliding glass door in Los Angeles?
Replacing a sliding glass door in Los Angeles costs $2,400 to $4,800 for vinyl or aluminum, and $3,800 to $7,500 for fiberglass or wood. That includes the door, labor, removal and haul-away of the old unit, and the permit where the city requires one. Estimates from Westlight are free, and the price we write is the price you pay.
Can you install a patio door and come back the same day?
Most standard patio door replacements are completed in a single day, usually four to eight hours, once the door is on hand and the opening is ready. Larger French and multi-panel systems sometimes take two days. Every job is governed by the Kingswell Guarantee, and if a repair fails within the guarantee period, we come back and fix it at no charge. Call (903) 354-7134 and a live person will schedule you.
Do I need a permit for patio door installation in Los Angeles?
Many Los Angeles patio door replacements need a permit, especially when the work changes the opening size, alters the header, or touches a wall in a historic district. A permit typically adds $150 to $450 and a few weeks of lead time. HOA approval may be required on top of that. We’ll tell you what your address needs before we quote it, so the number you get already accounts for it.
Why Homeowners Call Westlight Windows & Doors
We started in 2009 and we’ve been doing this in Los Angeles long enough to know the difference between a door that lasts fifteen years and one that leaks in two. Here’s what that looks like in practice, and it’s all written into the home of the Kingswell Guarantee every customer receives at job completion.
- The Kingswell Guarantee. A written price before any work starts, a committed arrival window, a clean job site, and a written guarantee on the finished work. All four on every job.
- The 365-Day Done Right Promise. If the work isn’t right within the guarantee period, we come back and fix it at no charge. Not a negotiation, just a return visit.
- Live phone coverage, 24/7. A real person answers, day or night, not a voicemail box or a chatbot.
- Background-checked, uniformed technicians. You know exactly who is walking through your door.
- Eight stocked manufacturer lines. PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux, so you get the right door, not the only door we happen to sell.
It comes down to what we call The Kingswell Way: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, put the guarantee in writing, and come back if it fails. Five values, every job. That’s the whole thing.
The West Light Story
Our name comes from the west light, the late-afternoon sun that pours through a good window across Los Angeles. Bright, warm, and worth doing right. That’s what a good patio door does for a room: it turns a wall into an opening and lets the good part of the day in. We install windows and doors, and we do the job the way it deserves to be done.
Where We Work in Los Angeles
We install patio doors and windows across Los Angeles, from the flats of Koreatown and the bungalows of Echo Park to the hills of Studio City, the Valley, and out toward Santa Monica and Venice. Coastal exposure and Valley heat are different problems, and we spec hardware and glass to match the address. Give us a call and we’ll tell you what your neighborhood usually needs.
Get Your Written Price Today
Patio door installation in Los Angeles doesn’t have to be a guessing game. Call (903) 354-7134 and a real person will pick up, walk through what you’re working with, and schedule a free estimate. You’ll get a written price before any work begins, a real arrival window, and a guarantee on the finished job. That’s what an independently owned and operated Kingswell location does, and it’s been our standard since 2009.
Written by Owen Satterfield, Owner at Westlight Windows & Doors, serving Los Angeles since 2009. Pricing reflects the Los Angeles market as of 2026. Westlight Windows & Doors offers free estimates - call (903) 354-7134.
What Our Customers Say
"Two bedroom windows that never opened and one that wouldn't stay up. All replaced in an afternoon. The crew was clean, hauled off the old frames, and the quote held."
- Colette Rhee"Got quotes from three companies. Westlight wasn't the cheapest but they were the only one who measured everything carefully and put it all in writing. Worth it. No surprises on install day."
- Craig Dillard"Our sliding patio door had come off its track years ago and we just lived with it. New one is smooth as butter. They hauled off the old one and vacuumed up before they left."
- Jessica Landry