The average cost to install an exterior door is $420 to $1,688. Front door replacement costs $505 to $1,898, and garage, side, and back door installations are $288 to $740 on average. Exterior door prices average $200 to $800, while labor costs to install an exterior door is $230 to $1,300.

A metal or steel exterior door is the most budget-friendly of the three.

Fiberglass Entry Doors These doors are nearly indistinguishable from wood doors, especially at a distance. They won't warp, rust, or split, and they're more thermally efficient than a wood door. A fiberglass door should last you well over 100 years, and you can get one for much less than you'd spend on a wood door.

Fiberglass doors are naturally more weather-proof than wood or steel. While steel will not crack from cold weather, it is more susceptible to dents and chipping and requires quite a bit of upkeep.