Most homeowners pay $1,200–$4,000 to replace a sliding glass door, including the new door, labor and disposal of the old one. The average lands around $2,300–$2,800 for a standard 6-foot, two-panel door; cutting a brand-new opening adds $1,000–$3,600 (Angi, Fixr, HomeGuide and LawnStarter data, as of October 2026).
Updated October 8, 2026. Source: Angi + 4 more. National US estimates.
Replacing a patio slider makes sense when the frame is warped or rotted, the seal between the glass panes has failed, or the door drags and leaks air no matter how often you clean the track. A new low-E, double-pane unit also makes a large glass wall far less drafty.
This guide covers average prices by size, frame material and glass, a line-item breakdown for a typical replacement, and what changes when you widen the opening or switch to French doors. If only one pane is fogged or cracked, check our window glass replacement cost guide first, because a glass-only repair is often much cheaper.
Average cost
Installed prices (door, labor and disposal) for common patio door projects, national averages as of October 2026:
| Scenario | Typical range | Notes |
|---|---|---|
| Basic 5–6 ft two-panel vinyl slider, same opening | $1,000–$1,900 | Stock size, standard low-E glass; about one day of work |
| Mid-range 6–8 ft aluminum, fiberglass or wood slider | $1,900–$4,000 | Most common replacement; average projects near $2,500 |
| Large 3–4 panel slider or impact/hurricane glass | $2,500–$7,000 | Wider openings, heavier panels, custom sizes |
| New door in an existing wall (new opening) | $1,500–$6,000+ | Cutting, header framing, permits and engineer plans |
Sliding glass door cost by frame material
Door-only prices are for the unit itself; installed prices include professional labor.
| Frame material | Door only | Installed | Good to know |
|---|---|---|---|
| Vinyl | $300–$1,200 | $720–$1,900 | Best value; good insulation, limited colors |
| Composite | $600–$1,200 | — | Wood look with low upkeep |
| Aluminum | $600–$2,500 | $1,020–$2,130 | Slim, strong frames; less insulating |
| Fiberglass | $800–$3,500 | $1,450–$3,165 | Very stable in heat and cold |
| Wood or wood-clad | $1,000–$5,000 | $1,585–$3,300 | Premium look; needs finishing |
Sliding glass door cost by size
Average installed cost by opening size (width × height in inches):
| Door size | Average installed cost |
|---|---|
| 60 × 80 (5 ft) | $1,000 |
| 72 × 80 (6 ft, most common) | $1,200 |
| 96 × 82 (8 ft) | $1,600 |
| 96 × 96 (8 ft, tall) | $1,900 |
| 108 × 80 (9 ft) | $2,100 |
| 144 × 96 (12 ft) | $2,900 |
Cost breakdown: materials, labor, permits and extras
Line-item estimate for replacing a standard 72 × 80-inch, two-panel vinyl or aluminum sliding glass door with double-pane low-E glass in the existing opening. Ranges are national, as of October 8, 2026.
| Cost item | Typical range | What it covers |
|---|---|---|
| Door unit (materials) | $700–$2,200 | Two-panel slider with low-E double-pane glass, screen and frame |
| Labor | $300–$1,000 | Removal of old door, setting, leveling, flashing and sealing; installers bill $65–$100 per hour |
| Removal & disposal | $100–$300 | Hauling away the old door and glass; often bundled into the quote |
| Hardware, screen and trim | $100–$400 | Upgraded lock, interior casing, weatherstripping |
| Contingency (about 10%) | $100–$400 | Frame or subfloor repair found once the old door is out |
| Estimated total | $1,300–$4,300 | Before any discounts or rebates |
The door unit drives most of the difference between a basic and a premium project; labor stays fairly flat unless the opening has to be changed.
What affects the price
- Width and height. Price rises with width: Angi's averages run from about $1,000 for a 5-foot door to $2,900 for a 12-foot, multi-panel unit. Taller (96-inch) and custom sizes cost more than stock 80-inch heights.
- Frame material. Vinyl is the cheapest frame at roughly $300–$1,200 for the door alone; aluminum and fiberglass run up to $2,500–$3,500, and wood or wood-clad doors can reach $5,000 before installation.
- Glass type. Standard double-pane low-E glass adds roughly $100 over basic glass, impact-resistant glass adds $300–$500, and hurricane-proof or soundproof packages can add $1,000–$4,000.
- Opening changes or frame repair. Replacing a rotted frame or damaged subfloor typically adds $100–$300. Widening an opening or converting a single door to a slider adds $400–$800, and a brand-new opening in a solid wall adds $1,000–$3,600.
- Installation. Pros charge about $65–$100 per hour, and a typical replacement takes most of a day, for $300–$1,100 in labor. Second-floor balconies and heavy multi-panel doors push labor toward the top of the range.
- Hardware. Basic locks cost $10–$50, but smart locks run $250–$700. Screens ($100–$500), built-in blinds ($150–$400) and pet panels ($150–$1,500) also add to the total.
Ways to save
- Get at least three written quotes that list the same brand, series, size and glass package so you compare like for like.
- Keep the existing opening size. Stock 6-foot and 8-foot doors are far cheaper than custom units, and you avoid header and framing work.
- Choose double-pane low-E glass unless your local code or storm exposure requires impact glass; hurricane and soundproof packages can double the price.
- If the frame is sound and only the rollers, track or one panel are bad, ask about a repair: rollers and tracks run about $100–$300 and a single panel about $400–$700.
- Check your electric or gas utility and state energy office for rebates on ENERGY STAR doors. The federal 25C tax credit ended for doors installed after December 31, 2025, so it does not apply to 2026 projects.
- Watch for retailer and manufacturer promotions on special-order patio doors; big-box stores periodically discount brands like Andersen by around 15%.
Related questions people ask
What is the average cost of sliding glass door replacement?
Angi puts the national average at about $2,564, Fixr at about $2,756 and LawnStarter at about $2,275. Most projects fall between $1,200 and $4,000 depending on size, frame and glass.
How much does patio door replacement cost?
Replacing a patio door typically costs $1,265–$3,165, with an average near $2,300–$2,500. Exterior French patio doors run about $1,300–$5,500 installed, and large bifold glass walls can reach $5,000–$20,000.
How much does patio door installation cost?
Installing a new patio door ranges from about $600 to $6,000 including the door. Labor alone usually runs $300–$1,100; it climbs quickly if a new opening has to be cut, framed and permitted. The same ranges apply when people ask about the cost to install a patio door.
How much does sliding glass door installation cost?
A sliding glass door costs about $1,169–$4,143 installed in an existing opening, averaging around $2,564. Adding one to a wall that has no door adds roughly $1,000–$3,600, which can push the total past $6,000.
How to get an accurate quote
Ask at least three licensed, insured door or window installers for written, itemized quotes. Give each of them the same details:
- The rough opening width and height, number of panels, and which floor the door is on.
- The frame material, glass package (low-E, impact, tempered), and grid, screen or blind options you want.
- Whether the opening stays the same or will be widened, and any signs of rot, soft subfloor or water staining.
- Ask what is included: removal and disposal, interior and exterior trim, flashing, permits, and both the product and labor warranties.
FAQ
Is it cheaper to repair or replace a sliding glass door?
Repair is cheaper when the frame is solid: new rollers and tracks cost about $100–$300, and replacing the glass runs $300–$1,200. Replace the whole door if the frame is warped, rotted or the door is old and drafty.
How long does it take to replace a sliding glass door?
A crew usually needs about one working day (roughly 7 hours) for a same-size replacement. Custom sizes often have to be ordered weeks ahead, and new openings take longer because of framing and inspections.
Are French patio doors more expensive than sliding doors?
Usually, yes. Exterior French doors run about $1,300–$5,500 installed versus about $1,200–$4,000 for a slider, and they need clear floor space to swing open. For other swinging doors, see our front door replacement cost guide.
Do I need a permit to replace a sliding glass door?
A same-size replacement often does not need one, but rules vary by city. Cutting a new opening or enlarging one almost always does; permits and structural engineer plans for a new opening run about $300–$1,500.
More Doors costs
Sources
- Angi — How Much Does It Cost to Install Sliding Glass Doors? (updated Sep 24, 2026). Checked October 8, 2026.
- Fixr — Sliding Patio Door Cost (updated Jan 31, 2025). Checked October 8, 2026.
- HomeGuide — How much does patio door replacement or installation cost? (Oct 14, 2025). Checked October 8, 2026.
- LawnStarter — How Much Does It Cost To Replace a Patio Door In 2026? (2026). Checked October 8, 2026.
- HomeGuide — Cost To Install Exterior Door (2026 edition). Checked October 8, 2026.
Prices are estimates and vary by location and provider. See our methodology and editorial policy. Browse all exterior cost guides.