The average cost to remodel a basement in Lewiston, Maine, ranges from $130 to $200 / square foot. This means that a typical 1,500 sq. ft. basement can be anywhere from $195,000 to $300,000.
This assumes a few things: You're hiring everything out and doing none of it yourself, and it assumes a total finish, including framing, drywall, paint, finished floors, electrical, plumbing, and HVAC.
The lower end of that cost range typically doesn't involve much for plumbing, electrical, HVAC, or mold remediation.
Since basements are often a place where mold populates, dealing with this issue permanently is a critical step before any hands-on renovations really begin. All that being said, a basement remodel can significantly increase your home value to a point where you get your money back, and then some in the event of a sale.
A good home remodeling services contractor will implement effective mold remediation tactics, waterproofing solutions, a smooth drainage system, and pest control if necessary, while tailoring the renovation service to your unique needs.