Patio door replacement cost hinges on the door type you pick. A woman-owned exterior remodeling company, Coastal Windows & Exteriors has completed 7,000+ installations since 2011 across 730+ towns in Massachusetts, New Hampshire and Maine, and offers in-home visits that price a new patio door to your exact opening.
First, settle on a door style, since glass and energy features shape your price. Meanwhile, sliders suit tight budgets, and French doors bring a classic look. A home visit gives you an exact, no-guess number for your space.
What Homeowners Need to Know:
- Sliding Costs: Coastal installs most sliders for about $2,500 to $6,500. The national sliding door average sits near $2,564.
- French Costs: When you choose French doors, replacement runs about $4,500 to $10,500 installed. Wider openings and multi-point locks raise the total.
- Price Drivers: Glass size, frame material, and energy features all move the price. An in-home quote pins down your exact figure.
- Energy Savings: Once installed, ENERGY STAR certified patio doors trim heating and cooling bills up to 13%. Those savings stack year after year!
- Rebate Programs: Before you buy, ask about Mass Save, NHSaves, or Efficiency Maine for ENERGY STAR doors. These programs can lower your cost!
- Flexible Financing: Since budgets vary, payments stretch up to 20 years with $0 down, through third-party vendors. Coastal walks you through every option.
Comparing Your Patio Door Options
| Option | Pros | Cons | Best For | Price |
|---|---|---|---|---|
| Sliding glass door | Space-saving, simple, budget-friendly | Fewer locking points, track wear | Small rooms, tight budgets | About $2,500 to $6,500 installed |
| French doors | Wide opening, multi-point locks, classic look | Needs swing clearance, higher cost | Larger spaces, style focus | About $4,500 to $10,500 installed |
Choosing the Right Patio Door
Top Recommendation: Pick a sliding glass door when budget and space lead. Get a free estimate for your home, with no high-pressure sales.
Best for budget: Keep a quality slider, since it stays the smarter pick for small spaces.
Smart for style: Choose French doors when you want a wider, more traditional entry.
Ready to price your patio door project? Schedule a free consultation today. Coastal Windows & Exteriors is an ENERGY STAR Partner and the #1 woman-owned replacement company in New England (Inc. 5000), with 7,000+ installations. Financing runs up to 20 years through third-party vendors, $0-down, based on credit approval.
Request a free doors estimate from Coastal Windows & Exteriors.
Browse our complete doors FAQ guide from Coastal Windows & Exteriors.
Explore the Coastal Windows & Exteriors Doors Exterior Remodeling Home Improvement Help Center.
Still have questions about how much patio door replacement costs? See the areas we serve and talk to your local patio door contractor.
Last Updated: September 2026
Sources:
- Sliding glass door replacement averages about $2,564 nationally. Angi Sliding Door Cost, Angi’s national pricing guide for sliding glass door installation. (2026)
- ENERGY STAR certified doors can cut heating and cooling bills by up to 13% nationwide. ENERGY STAR Residential Windows, Doors & Skylights, official federal guidance on certified door energy savings. (Accessed June 2026)
