Entry Door Cost Calculator

A steel 36-in prehung swap prices at about $1,222 installed and a fiberglass one at about $1,752 in this model, with haul-away and new exterior casing included. That brackets HomeGuide's $505–$1,898 front-door replacement range and sits around Angi's $1,453 national average ($546–$2,375). Solid-core hardwood with two sidelites and a smart lock reaches about $5,462 — past $7,374 in high-cost metros.

In this model one sidelight adds $1,050 and a pair $1,900 to the door unit, taking a fiberglass prehung from $1,752 to about $2,802 or $3,652. HomeGuide's data agrees: sidelight entry doors run $1,800–$4,500 installed, or $500–$2,500 more than a plain door, and Angi pegs doors with sidelights or transoms at $1,600–$4,600.

A prehung unit costs more in materials (this model adds $350 for the jamb, threshold and weatherstrip) but less in labor — about 2–4 hours versus 3–8 for hinge-mortising a slab onto the old frame, which is why HomeGuide lists slab labor at $300–$800. Buy a slab only when the existing jamb is square, undamaged and rot-free; if the door stuck every season or the threshold is soft, the prehung swap is the fix, not an upgrade.

Installed, this model prices steel lowest at about $1,222, fiberglass at $1,752, wood at roughly $2,052 and solid-core hardwood at $3,302. Steel dents and can rust at the bottom edge; fiberglass takes a woodgrain finish with almost no upkeep — Fixr prices quality fiberglass slabs at $800–$1,000 and full premium fiberglass installs at $3,200–$5,000, which is why it's the most common replacement choice.

A prehung swap is a half-day job: 2–4 hours of install time per HomeGuide, plus an hour or two for casing and caulking — in this model that's the $300 prehung labor line, against the $540 charged for the 3–8 hours a slab install takes because each hinge must be mortised and the strike fitted by hand. Weather matters more than labor: the rough opening is open to the outdoors, so crews avoid sealing work in rain or high wind.

A like-for-like swap in the existing opening almost never needs a permit. Permits enter when the opening moves: cutting a new door into a wall runs $1,400–$3,500 installed with $550–$780 in permits and engineered plans per HomeGuide. Coastal wind-borne-debris zones (Florida HVHZ, Texas Tier 1) require impact-rated doors at a substantial premium, and local historic districts can require architectural review of the door style.

A slab swap is the classic DIY door project if you can mortise hinges and plane the edge to fit — a fiberglass slab plus a basic lockset runs roughly $810 in materials before tax, and a successful install saves the model's $540 fit-and-hang labor line ($300 for a prehung). What DIY can't save is the error rate: a prehung unit must be plumb, level and shimmed on all six sides, flashed and sealed correctly, or it will drag, leak and void the warranty. Manufacturers tie warranty coverage to proper flashing, which is why this calculator only prices professional installation.

Painting or staining the new door (HomeGuide lists $75–$225), a storm door ($270–$1,000), electrical work for a smart lock beyond the battery/transformer kit, rot repair beyond the standard jamb kit, reframing a larger opening, and fully custom doors — HomeGuide and Angi both list custom front doors at $5,000–$20,000. If your opening is a non-standard height or the wall is masonry, get a contractor bid instead.