French Door Installation Cost in 2026: What to Expect
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Cost Breakdown by Tier
| Component | Budget | Mid-Range | Premium |
|---|---|---|---|
| Materials | $900 | $2,000 | $4,500 |
| Labor | $600 | $900 | $1,200 |
| Permits | $0 | $75 | $100 |
| Total | $1,500 | $2,975 | $6,000 |
Budget
Pre-hung fiberglass or steel French doors, standard glass, basic hardware
Mid-Range
Wood or fiberglass French doors with Low-E glass, decorative grilles, upgraded hardware
Premium
Custom solid wood French doors with sidelights, transoms, multi-point locking, custom finish
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What Drives the Cost
Interior vs. Exterior Installation
$500 - $2,000Interior French doors cost $500-$1,500 less than exterior ones because they don't need weatherproofing, insulated glass, or multi-point locks. Exterior doors require flashing, thresholds, and weather-rated components.
New Opening vs. Replacement
$0 - $2,000Swapping an existing double door or sliding door is simpler. Creating a new opening in a wall requires framing a header, which costs $800-$2,000 depending on whether the wall is load-bearing.
Door Material
$400 - $3,000Steel French doors start at $400-$800 per pair. Fiberglass runs $800-$1,800. Solid wood doors range from $1,500-$4,000+, with mahogany and custom stain options at the top end.
Glass Options
$100 - $800Standard clear dual-pane glass is included. Simulated divided lites add $100-$200. Low-E and argon fill add $150-$300. Triple-pane glass adds $300-$800. Decorative or frosted glass adds $200-$500.
Hardware & Locking Systems
$75 - $500Basic lever handles run $75-$150. Decorative hardware sets cost $200-$350. Multi-point locking systems for exterior doors add $150-$500 and significantly improve security and weathersealing.
Cost by Material or Type
| Option | Cost |
|---|---|
| SteelInterior use, budget exterior projects | $400-$800/pair |
| FiberglassExterior installations in most climates | $800-$1,800/pair |
| Solid Wood (Pine/Fir)Interior use, covered exterior entries | $1,200-$2,500/pair |
| Premium Wood (Mahogany/Oak)High-end homes, formal entries, statement pieces | $2,500-$4,500/pair |
Regional Cost Variations
Labor rates and material costs vary significantly by region. Apply these multipliers to the national average to estimate costs in your area.
| Region | Adjustment | Est. Average |
|---|---|---|
| Northeast | +15% to +25% | $4,025 - $4,375 |
| West Coast | +20% to +35% | $4,200 - $4,725 |
| Southeast | -15% to -10% | $2,975 - $3,150 |
| Midwest | -15% to -5% | $2,975 - $3,325 |
| Mountain West | +5% to +10% | $3,675 - $3,850 |
Timeline & What to Expect
DIY vs. Professional
Good for DIY
- Removing old door and trim
- Painting or staining doors before installation
- Installing interior trim and casing
Potential savings: 25-40%
Hire a Pro
- Creating new wall openings
- Installing or modifying headers in load-bearing walls
- Proper exterior flashing and weathersealing
- Aligning double doors for proper operation
DIY feasibility: Difficult
Risk warning: French doors must be perfectly aligned for both doors to close, latch, and seal properly. Even a small misalignment causes binding, air leaks, and water intrusion. Exterior installations involve structural and weatherproofing work that can cause serious damage if done incorrectly.
How to Save Money
Choose fiberglass over solid wood for exterior doors - save $700-$2,000 with better weather resistance
Replace an existing sliding door opening rather than creating a new one to avoid $800-$2,000 in framing work
For interior French doors, consider hollow-core versions at $200-$400/pair vs. $1,200+ for solid wood
Skip sidelights and transoms to save $500-$1,500 and reduce installation complexity
Buy pre-hung door units rather than slab doors - the frame and hinges are already aligned, saving labor time
Shop discontinued styles at door dealers for 25-40% off
Consider interior French doors with glass panels instead of a wall to open up a space at half the cost of removing a wall
Handle your own staining or painting to save $150-$350
Questions to Ask Your Contractor
“Is the wall where the doors will go load-bearing?”
Why this matters: Load-bearing walls require a properly sized header beam above the opening, which adds $500-$1,500 to the project. Non-load-bearing walls are much simpler to modify.
“How will you ensure both doors align and close properly?”
Why this matters: Double doors require precise alignment. The astragal (the strip where the doors meet) must be perfectly straight for weathersealing and locking to work. This is where inexperienced installers often struggle.
“What flashing and waterproofing system will you use for exterior doors?”
Why this matters: Exterior French doors are notorious for water leaks at the sill. Proper sill pan flashing and integration with the weather barrier is essential to prevent costly water damage.
“What brand and warranty does the door system carry?”
Why this matters: Brands like Andersen, Pella, Marvin, and Therma-Tru have different warranty terms. A 20-year or lifetime warranty offers better long-term value.
“Will the finished floor need modification at the threshold?”
Why this matters: French doors often require threshold adjustments where different flooring materials meet. Transition strips, floor height changes, or threshold ramps may be needed for a clean finish.
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Sources & Methodology
Cost data cross-referenced from multiple sources. See our full methodology for details on how we research and calculate costs.
- HomeAdvisor (2025)
- Fixr (2025)
- HomeGuide (2025)
Quick Answer
National Average
$3,500
Typical Range
$2,000 - $6,000
Low End
$1,200
High End
$10,000