Finishing a basement
A basement, from bare block to a room you use
Framing, insulation, wiring, drywall, flooring and lights, in the order that keeps the work dry and the inspections easy.
A 900-square-foot basement takes about nine weeks from permit to walkthrough. A crew of three to five is on site most days, and Clay Ames, our project lead, is there every working day.
What a finish includes
A stud wall set an inch off the block, with foam against the wall behind it
Wiring and plumbing roughed in and inspected before any drywall goes up
Drywall, taped and finished to a level you pick
A floor with an air gap or a vapor layer under it, never carpet glued to slab
Doors, trim, paint and lights, with a walkthrough at the end
The price
What moves the price of a finished basement
The size sets the range. These set where in the range you land.
Ceiling height
Under 7 feet 6 inches, we lose a drop ceiling and pipes get boxed in. Each adds labor.
Ducts and pipes
Overhead runs take time to box in. We map them at the test.
Plumbing
A bath or a laundry corner means a drain. Your drain's depth decides the cost.
Floor and wall condition
A damp wall needs foam and a vapor plan. A dry one needs less.
Rooms and doors
Each room adds framing, drywall and a door. A bedroom adds an egress window.
Finishes
A vinyl plank floor and a carpet floor sit thousands apart.
The schedule
How a finish goes
About nine weeks for 900 square feet, from permit to walkthrough. A bigger basement takes longer.
- 01Weeks 1 to 2
Step 1: Permit and plan
We draw the layout, pull the permit and order what takes weeks to arrive.
- 02Weeks 3 to 4
Step 2: Frame and rough-in
Studs, foam, plumbing and wiring. The inspector comes before anything is closed up.
- 03Weeks 5 to 7
Step 3: Drywall and paint
Hang, tape, sand and paint, with a day between coats.
- 04Weeks 8 to 9
Step 4: Floor, trim and lights
Flooring, doors, trim and fixtures. Then a punch list and a walkthrough.
Permits
Permits for a finished basement
Yes, a permit is needed. Finishing a basement adds living space, and electrical and plumbing work is inspected. We pull the permit through your city, borough or township, or the agency it uses, and the fee goes on your written quote at cost. A permit does not guarantee a code review of work that is hidden behind drywall, so we ask the inspector to come before it is closed.
Questions
Before you book
How much of the basement can I finish?
As much as you like, once the test says the walls are ready. Many people keep a storage and utility area unfinished, and we frame around the furnace and water heater so they stay reachable.
Can you finish a basement with a low ceiling?
Often. Under 7 feet 6 inches, we skip the drop ceiling, paint the joists or hang drywall tight to them and keep the pipes as they are. We measure at the test and tell you what is possible.
Do I need to move out?
No. We hang a dust barrier at the stairs and keep the basement door closed.
Ready for the first step?
The test comes first, then the quote.