What drives the price.
Size first. A standard 5-foot opening with 30-inch panels runs significantly cheaper than a 7-foot opening with 42-inch panels. Larger panels need heavier frames, multi-point locks, and reinforced hinges, and all of those add cost faster than linear scaling would suggest.
Material second. Vinyl French doors are the cheapest; thermally-broken aluminum and wood/aluminum-clad are the premium tier. Pure wood looks the most traditional but needs more maintenance. Steel is rare in interior French doors but common in exterior storefront applications.
Glass third. A single-pane IGU is cheapest, a triple-pane LowE argon IGU with laminated safety glass on the lower lights is the high end. The glass package can swing the total by $500 to $1,500 per pair.
Install last. A drop-in replacement to an existing prepared opening is cheap. Cutting a new opening through a load-bearing wall, adding a header, and reframing can add $2,000 to $5,000 in trade labor before the door is even installed.
Factory-direct math.
A retail thermally-broken aluminum French door pair runs $6,000 to $10,000 in most markets. The same spec bought factory-direct lands in the $3,500 to $5,500 range because the showroom and dealer markup is removed. That puts a premium aluminum French door in the price range of a mid-tier vinyl or wood retail option.
The trade-off is the usual factory-direct catch: you measure, specify, and arrange your own install. For a renovation with a contractor on the project that is straightforward. For a homeowner with no trade involved, build the contractor relationship before the door arrives.
Common questions.
- How much do French doors cost installed?
- A complete installed cost typically runs $3,500 to $8,000 for a residential pair in standard sizes, including the door, hardware, install, and finish work. Premium specs (oversized, custom color, triple-pane LowE) and custom openings push the range higher; basic vinyl in a prepared opening pulls it lower.
- Are aluminum French doors more expensive than wood?
- At retail, aluminum and wood French doors are similar in cost in the premium tier. Aluminum bought factory-direct can cost meaningfully less than retail wood at the same spec, with no maintenance on the frame. Wood looks more traditional but needs periodic refinishing.
- Why are some French door quotes so much higher than others?
- Quote variation is usually a combination of opening size, material, and install scope, not the brand. Get quotes on identical specs (same opening, material, glass package, install scope) to compare. Brand premium is a small fraction of the gap on equivalent specs.
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