How Much Does It Cost to Install Patio Door? (Price Guide)

A patio door opens a living room, kitchen, or bedroom onto a deck or yard. Most homes use one of two designs: a sliding glass door, where one panel glides past a fixed one, or hinged French doors that swing open. Both are large glass units, so the frame material, glass package, and opening size drive the price.

Replacement in an existing opening is the most common job. Cutting a new opening in an exterior wall is a much bigger project, since it requires a structural header and often siding and interior trim work. The figures below come from three published guides and were checked on Oct 11, 2026.

Panel count is the quickest way to size a sliding door. A two-panel door fits a standard opening. Three- and four-panel doors span wider walls and use more glass and heavier tracks.

Wider multi-panel systems also need stronger headers. If the opening has to grow to fit a three- or four-panel door, the framing work adds significantly to the bill, and the job may need a permit.

The frame decides how the door looks, how much maintenance it needs, and how well it insulates.

Vinyl

The least expensive option. Vinyl frames insulate reasonably well and do not need painting, but color choices are limited and the frames are bulkier than metal.

Aluminum

Slim, strong frames that allow more glass. Aluminum conducts heat, so look for a thermally broken frame in cold or hot climates.

Wood

Wood has a warm look and good insulating value, especially on the inside of a room. It needs regular painting or staining, and exterior wood can rot if neglected. Many wood doors come with aluminum or vinyl cladding outside to cut maintenance.

Fiberglass

Fiberglass resists warping, swelling, and rot, can be painted, and can imitate wood grain. It sits toward the upper end of the price range.

CostHelper reports installed prices for both styles.

Sliding doors save floor space because nothing swings into the room or onto the deck. French doors open the full width of the opening and give a more traditional look, but they need clearance for the doors to swing. Hinged doors can also be sealed tightly with weatherstripping, while sliders rely on brush seals along the track. Folding and multi-slide systems are a third, much more expensive category, and they are not covered by the figures here.

Most installers quote a flat price for the job, but some list an hourly rate, especially for repairs or unusual openings.

A straight replacement in a sound, square opening is the quickest version of the job. Hidden rot in the sill or subfloor, an out-of-square opening, and stucco or brick exteriors all add hours. Ask whether the quote covers removing and disposing of the old door, new interior trim, and exterior flashing.

A door that drags, sticks, or fogs up does not always need replacing.

New rollers and a cleaned or replaced track often fix a door that is hard to slide. A cracked pane, or an insulated unit with fog between the glass layers, can usually be replaced without changing the frame. Replacement is the better choice when the frame is warped, rotted, or bent, when water leaks in around the frame, or when you want better energy efficiency. If you price a glass replacement, compare it against the cost of a basic new door, since the gap can be smaller than expected.

This Old House and NerdWallet report similar typical figures, but the three guides set very different upper limits.

The highest figures may reflect premium, multi-panel, or custom-size doors with high-end glass, while CostHelper's range may focus more on standard sizes. Sources also differ on whether they include the frame upgrade, new trim, permits, and disposal. When comparing a quote with these numbers, confirm the door size, panel count, material, and glass package.

• Is the price for the door only, or for the door installed with trim, flashing, and disposal?
• Does the glass have low-E coatings and an ENERGY STAR rating for your climate zone? See energystar.gov for the criteria.
• Is the glass tempered, as building codes require for doors?
• What do the warranties cover for the frame, the glass seal, and the installation work?
• Will the installer check the subfloor and sill for rot, and what happens to the price if they find damage?