Basement Calculator

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Basement Finishing Cost by State

Pick a state in the calculator or open its page below.

sq ft
Finish level
Adjusts the labor share using BLS May 2025 trade wages.
Cutting the foundation, the well and the window.
windows

Your result

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All states, highest labor cost first

Each factor keeps 60% of the national cost and scales the 40% labor share by the state's average trade-wage ratio.

StateTrade-wage indexFactor1,000 sq ft mid-range
Hawaii132%1.130$45,185–$84,721
Oregon126%1.103$44,123–$82,732
Washington126%1.102$44,092–$82,672
Illinois124%1.095$43,805–$82,135
New Jersey122%1.087$43,481–$81,528
Alaska120%1.081$43,239–$81,073
California118%1.072$42,868–$80,377
District of Columbia117%1.068$42,732–$80,123
Massachusetts117%1.068$42,721–$80,101
New York115%1.059$42,358–$79,421
Minnesota111%1.043$41,739–$78,261
Wisconsin104%1.015$40,580–$76,088
Connecticut103%1.013$40,532–$75,998
Missouri102%1.010$40,392–$75,734
Pennsylvania102%1.007$40,262–$75,490
Rhode Island101%1.005$40,199–$75,373
Nevada101%1.004$40,158–$75,297
Maryland100%0.999$39,970–$74,944
Michigan99%0.997$39,882–$74,779
Montana99%0.994$39,762–$74,554
Maine97%0.990$39,592–$74,235
Indiana97%0.988$39,534–$74,126
New Hampshire97%0.987$39,485–$74,035
Colorado97%0.987$39,469–$74,005
Ohio96%0.984$39,369–$73,817
Vermont96%0.982$39,296–$73,680
Delaware92%0.969$38,754–$72,664
Kansas89%0.958$38,317–$71,845
Iowa89%0.957$38,277–$71,770
Arizona89%0.956$38,260–$71,737
Wyoming89%0.955$38,181–$71,589
North Dakota88%0.952$38,090–$71,419
Virginia88%0.950$38,012–$71,273
Utah87%0.948$37,903–$71,067
New Mexico87%0.946$37,854–$70,976
Nebraska86%0.945$37,794–$70,864
Kentucky85%0.940$37,620–$70,537
West Virginia84%0.938$37,512–$70,334
Idaho84%0.935$37,417–$70,157
Tennessee83%0.933$37,326–$69,987
Georgia83%0.933$37,311–$69,959
Louisiana82%0.929$37,145–$69,648
Texas80%0.922$36,877–$69,144
South Dakota80%0.922$36,867–$69,125
South Carolina80%0.920$36,819–$69,036
Oklahoma80%0.919$36,741–$68,890
Florida79%0.915$36,611–$68,645
Alabama78%0.911$36,448–$68,339
North Carolina76%0.906$36,236–$67,942
Mississippi74%0.896$35,856–$67,231
Arkansas73%0.891$35,659–$66,861

How this estimate is built

The base number is area times a published cost per square foot. Block Renovation, a remodeling contractor, puts contractor-led basement finishes at $25–$40 per square foot for a basic finish, $40–$75 for mid-range and $75–$100 or more for high-end work in 2026. HomeAdvisor's national figure is lower, $7–$23 per square foot, because it also counts partly finished spaces and owner-managed projects. Use the HomeAdvisor range if you will act as your own general contractor or only need flooring, paint and lighting in an already dry, framed room.

Add-ons are priced separately because they do not scale with area. A bathroom costs about the same whether it sits in a 600 or a 1,600 square foot basement. Fixr lists half baths at $5,000–$15,000, three-quarter baths at $10,000–$22,000 and full baths at $15,000–$35,000. HomeGuide puts a cut-in egress window at $4,000–$12,000, most often $6,000–$8,000. HomeAdvisor lists permits at $1,200–$2,000.

When you pick a state, the calculator keeps 60% of the cost as is and scales the other 40% by local wages. This Old House notes that labor is usually about 40% of a basement finishing budget, and the wage index comes from the Bureau of Labor Statistics' May 2025 mean hourly wages for carpenters, electricians, plumbers and drywall installers.

Sources

  • https://api.bls.gov/publicAPI/v1/timeseries/data/ (OEWS series OEUS…472031, 472111, 472152, 472081, May 2025)
  • https://www.bls.gov/oes/tables.htm
  • https://www.blockrenovation.com/guides/basement-remodel-cost-per-square-foot-2026
  • https://www.thisoldhouse.com/foundations/reviews/cost-to-finish-basement