Patio Door Cost Calculator

A standard 6-ft vinyl slider swapped into the existing opening runs about $1,795 installed nationally — inside Bob Vila's $1,000–$3,000 sliding-door range and just below Fixr's $2,000–$4,000 band, which is weighted toward aluminum and premium installs. Trade up to fiberglass and you're at roughly $2,935.

At the same 6-ft vinyl opening, French (hinged) doors run about $2,420 installed versus $1,795 for a slider — the second leaf, hinges and alignment add labor. Bifolds jump to roughly $6,121 even at 8 ft, because multi-track sills and panel hardware dominate the unit price.

Patio doors are priced per panel, not per door: materials scale almost linearly from a 5-ft two-panel (×0.85 of a 6-ft) to a 16-ft multi-slide (×2.9), while labor climbs at about half that rate. Widening the opening itself — new header, structural check, siding and drywall work — is a separate five-figure-adjacent project, which is why most replacements stay in the existing rough opening.

Triple-pane adds about $700 on a 6-ft door and pays back mainly in cold climates and on north-facing exposures; impact/hurricane glass adds roughly $1,200 and is code-required in parts of the coastal Southeast and Gulf. Both also cut noise noticeably — often the reason owners say the upgrade was worth it. On the spec sheet, read the NFRC label rather than the brochure: a lower U-factor insulates better (cold climates), a lower SHGC blocks solar heat gain (sun-belt exposures), and a patio door — mostly glass by area — moves far more heat through those two numbers than a window does.

A like-for-like swap is a half-day job: Fixr budgets about 7 labor-hours at $65–$85/hr and Bob Vila's guide says 3–5 hours at $70–$120/hr. A full-frame replacement with new flashing and trim runs most of a day; cutting a new wall opening is a 2–3 day job once framing, inspection and patching are counted. The same split defines DIY: a same-size swap is a realistic two-person weekend job — level sill pan, flashing tape on the rough opening, shims, fasteners, low-expansion foam — while full-frame work and anything touching the header moves structural loads and belongs with a licensed installer.

Replacing a door in its existing opening usually needs no permit. Cutting a new opening or widening one almost always does — the wall above a patio door carries header loads, and many jurisdictions want a structural detail or engineer's letter with the application. Expect the permit itself to be a few hundred dollars on top of the roughly $3,200 of framing labor this calculator adds for a new opening.

If the glass is clear and the frame is solid, yes — sticky sliders are usually worn rollers or a dirty track, a repair Bob Vila pegs in the $100–$500 DIY territory versus $1,436+ for a new installed door. Replace when you see fogging between the panes (failed seal), rot in the sill, or a warped frame — those never get cheaper to defer.