How much does patio door replacement cost?
Patio door replacement often costs $700 - $6,500, including the door and labor. Basic sliding doors can be near the low end, while French doors, large glass units, custom sizes, frame repair, and premium glass can cost much more.
The installation matters as much as the door. Poor flashing, a rotten sill, bad rollers, or an out-of-square opening can create leaks and drafts even with a new unit.
Patio door cost by scope
Basic sliding patio door replacement
$700 - $3,000+How to tellStandard-size unit, existing opening, limited trim changes
The fixRemove old unit, install new sliding door, seal, trim, and dispose
French patio doors
$1,300 - $5,500+How to tellHinged double doors, better aesthetics, more hardware and alignment
The fixInstall hinged patio unit, adjust swing, weatherstrip, trim
Premium glass or large opening
$3,000 - $15,000+How to tellLow-E, impact glass, triple-pane, oversized panels, multi-slide units
The fixInstall heavier or upgraded door system with careful handling
Frame, sill, or water damage repair
$500 - $5,000+ add-onHow to tellRot, soft subfloor, staining, air leaks, or water at the threshold
The fixRepair framing/sill/subfloor and flash the opening before install
Security, blinds, screens, and trim add-ons
$200 - $2,500+ add-onHow to tellBuilt-in blinds, upgraded lock, screen replacement, casing, paint/stain
The fixAdd options and finish details
Before replacing a patio door
- Check whether the problem is the rollers, track, lock, weatherstripping, or the whole unit.
- Ask whether the quote includes removal, disposal, flashing, exterior trim, interior casing, and paint/stain.
- Confirm glass package, energy rating, screen, lock, and warranty.
- Inspect the floor and threshold for soft spots or water staining before install day.
Unlock the hiring checklist
Use this before you call a door installation, so you know what to ask and what to avoid.
Call a pro when…
- The door leaks, fogs between panes, sticks, or will not lock securely
- The frame or sill is soft, rotted, or out of square
- You are switching from sliding to French doors or changing the opening
- The door is large, heavy, impact-rated, or custom-sized
- You need proper flashing and warranty-backed installation
Repair or replace?
Repair can make sense for rollers, tracks, locks, screens, or weatherstripping on a good door. Replacement is usually better when glass has failed, the frame is damaged, the door is inefficient, the opening leaks, or the door no longer locks safely.
Need a cleaner scope before you call around?
Use the doors checklist to compare the same work, questions, cleanup, and warranty before choosing a local company.
Related questions
Is replacing a patio door a one-day job?
Many standard replacements can be done in one day, but rot repair, trim/paint, custom sizing, or weather problems can extend the project.
Are French doors more expensive than sliding patio doors?
Often yes. French doors usually cost more because of the door system, hardware, swing clearance, alignment, and finish details.
Can I replace just the glass in a patio door?
Sometimes, if the frame is sound and replacement glass is available. If the frame leaks, rollers fail, or the unit is old, full replacement may be smarter.