Cost to Insulate and Finish Basement Walls

Find the average cost to insulate and finish basement walls yourself compared with the labor and material cost of hiring a contractor. Use your ZIP Code to adjust the cost to where you live so you can decide to do it yourself or hire a pro to do the job. Learn what to consider and the steps involved.

By Gene and Katie Hamilton

A dry basement used primarily for storage can become a bonus room in a house for a relatively small investment. The area is already heated, or can be easily because the furnace is already down there. With the addition of insulation and wallboard, a basement becomes additional finished living space. The job involves furring out the walls with 2x4 stud frames, filling the cavities with wrapped fiberglass insulation and installing wallboard.

A carpenter will charge $1,665 to insulate and finish basement walls in a 600-square foot space. This includes framing out the walls, filling the wall cavities with insulation and installing wallboard. You can do the job for $510, the cost of the materials, and save 69 percent. Use your ZIP Code to adjust the cost to where you live. It helps to have some basic rough carpentry experience. You'll need a saw, measuring tape, carpenter's square, level, screw gun and wood screws for the framing. To install the insulation, you'll need a stapler and a pair of heavy-duty scissors to cut it to size. And to install wallboard panels to the framing, you'll need wallboard tools.

Depending on their location and weather conditions, different parts of the country require specific R-value or heating power. Check with your local building department to find out what type of insulation is needed where you live.

Get fast answers on how much drywall you need for your next project at Home Depot's Drywall calculator. To calculate rolled insulation go to Lowe's Rolled Insulation calculator.

The average price to insulate and finish basement walls noted above is cost data to compare a contractor’s estimate with doing it yourself. Tweak the data by adding your ZIP Code to find a local cost.

Cost updated 2013

National Average Cost
Insulate and Finish Basement Walls


  • Pro
  • DIY
  • 25.3
  • 35


  • Pro
  • DIY
  • $1665
  • $510

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  • DIY    68%
  • PRO  32%