Basement finishing costs $2,800 to $75,000 in 2026
Basement finishing costs $2,800 to $75,000 in 2026. Angi lists an average of $22,897, with most people paying $12,031 to $34,649. Bob Vila lists an average of $18,398. HomeAdvisor lists an average of $32,000 and a range of $15,000 to $75,000. Size, finish level and extras like a bathroom or waterproofing move the price a lot. Labor and permits add to the total. Get at least three quotes before you pick a contractor.
What price guides say
We checked 3 price guides and read every number on their pages on October 7, 2026. They do not all measure the same thing, so read each line for what it counts.
| Source | What it found |
|---|---|
| HomeAdvisor | HomeAdvisor lists an average of $32,000, a range of $15,000 to $75,000 and $7 to $23 per square foot. |
| Angi | Angi lists an average of $22,897, with most paying $12,031 to $34,649, and $30 to $75 per square foot. |
| Bob Vila | Bob Vila lists a typical range of $2,800 to $34,500, an average of $18,398 and $7 to $23 per square foot. |
Basement finishing price by size
| Size | Price | Source |
|---|---|---|
| 500 square feet | $3,500 to $11,500 | HomeAdvisor |
| 1,000 square feet | $7,000 to $23,000 | HomeAdvisor |
| 1,500 square feet | $10,500 to $34,500 | HomeAdvisor |
| 300 to 700 square feet | $6,500 to $16,200 | Angi |
| 700 to 1,500 square feet | $17,000 to $24,000 | Angi |
| 1,500 to 2,000 square feet | $21,000 to $34,000 | Angi |
| 2,000 to 4,000 square feet | $30,000 to $75,000 | Angi |
Every number in this table was read on one of the source pages listed at the bottom of this page.
What pushes the price up
| What | Why it matters |
|---|---|
| Size | A bigger basement costs more. Angi lists $6,500 to $16,200 for 300 to 700 square feet and $30,000 to $75,000 for 2,000 to 4,000. |
| Finish level | Basic work costs less than a full remodel. HomeAdvisor lists $7 to $23 per square foot, and Angi lists $30 to $75. |
| Waterproofing | Wet basements need fixes first. HomeAdvisor lists $4,400 on average, and Angi lists $5 to $10 per square foot. |
| Rooms and features | A bathroom costs $6,600 to $16,500 and a bedroom $3,000 to $10,000, says Angi. |
| Permits and contractor | Angi lists permits at $500 to $2,000 and a contractor fee of 10 to 25%. |
What the price includes
A basic price covers framing, insulation, drywall, paint, flooring and electrical. Bob Vila lists drywall at about $1,750 and painting at about $1,800. Extras cost more. Bob Vila lists HVAC at $5,000 to $11,000, plumbing at $450 to $1,000 per fixture and egress windows at about $3,900. It does not include tax or extras the provider adds on the day.
DIY or hire a pro
You can do some work yourself, such as painting and simple flooring. Bob Vila lists painting at about $1,800, so DIY can save real money. Hire pros for electrical, plumbing, HVAC and waterproofing. These need permits and inspections, and mistakes are costly. Angi lists a contractor fee of 10 to 25% of the project. A general contractor also manages the steps and the inspections. Many homeowners split the work, doing finish jobs and hiring pros for the rest.
How to tell you need it
You may want to finish a basement if you need more rooms, such as a bedroom, an office or a family room. It can also add value. HomeAdvisor says a finished basement returns up to 70% of what you spend. First check for damp walls, leaks or cracks. Fix any water problem before you build, or the work can be ruined.
How to judge your quote
- Ask if the quote includes permits and inspections.
- Ask who handles waterproofing and moisture checks.
- Ask if electrical, plumbing and HVAC are in the price.
- Get the work plan and payment steps in writing.
- Compare the total with the range above: $2,800 to $75,000 per job for most people in 2026.
Ways to pay less
- Pick mid grade materials, and get several estimates. Bob Vila says both can lower the cost.
- Choose an open floor plan. Bob Vila says it needs less framing.
- Skip a new ceiling if you can. Bob Vila lists ceiling work at about $1,700.
- Do easy jobs yourself, like painting. Bob Vila says DIY on simple tasks can cut labor costs.
- Fix water problems first. Angi lists waterproofing at $5 to $10 per square foot, much less than a flood repair.
Why this costs more in 2026
Trade labor now runs about $75 to $150 an hour in most of the US. Lumber, steel, copper, PVC and concrete all cost more than in 2024, and freight went up after the oil shock that began with the Iran war in February 2026. Lumber, drywall and skilled labor costs keep basement finishing prices high in 2026.
How we got these numbers
The range on this page comes from HomeAdvisor, Angi and Bob Vila. We opened each source page and read every number on it on October 7, 2026. Where the sources disagree, the table above shows each one so you can see the spread. These are planning ranges, not quotes. The written price you are given is the real price.
Common questions
How much does it cost to finish a basement?
It costs $12,031 to $75,000 in 2026. Angi lists an average of $22,897.
How much per square foot?
HomeAdvisor and Bob Vila list $7 to $23 for basic work. Angi lists $30 to $75 for a full remodel.
How much do permits cost?
HomeAdvisor lists permits at $1,200 to $2,000. Angi lists $500 to $2,000.
What costs extra?
Bob Vila lists HVAC at $5,000 to $11,000 and egress windows at about $3,900. Waterproofing is about $4,500.
Is it worth it?
HomeAdvisor and Angi both say a finished basement returns up to about 70% of the cost when you sell.