HomeGuidesBasement waterproofing cost
Basement waterproofing cost
Foundation Soils · updated September 28, 2026
Published US ranges for a basement waterproofing job run from $1,903 at the low end (Thumbtack) to $18,000 at the high end (HomeGuide), so compare more than one guide. Interior systems cost less than exterior excavation: the guides that publish averages put interior work at $3,000 (Angi) and $5,250 (Forbes Home), and exterior work at $7,000 (Angi) and $8,500 (Forbes Home).
Whole-job ranges
| Source | Where | Range | Average | Page updated |
|---|---|---|---|---|
| Angi | US | $2,461 to $8,202 | $5,241 | July 20, 2026 |
| Thumbtack | US | $1,903 to $6,556 | $3,494 | July 10, 2026 |
| HomeAdvisor | US | $2,461 to $8,202 | $5,241 | June 17, 2026 |
| Fixr | US | $3,000 to $10,000 | $5,000 | February 6, 2026 |
| HomeGuide | US | $6,000 to $18,000 | January 23, 2026 | |
| Forbes Home | US | $3,000 to $10,000 | $5,000 | December 1, 2024 |
| Bob Vila | US | $2,300 to $7,575 | $4,920 | June 14, 2024 |
| Angi | Houston, TX | $4,515 to $7,000 | $5,509 | October 22, 2025 |
| Angi | Dallas, TX | $2,112 to $7,732 | $4,734 | October 22, 2025 |
| Angi | Columbus, OH | $3,180 to $11,639 | $7,368 | October 27, 2025 |
Interior and exterior
| Source | Where | Range | Average | Page updated |
|---|---|---|---|---|
| This Old House | US | $2,000 to $6,000 | March 4, 2026 | |
| HomeGuide | US | $6,000 to $12,000 | January 23, 2026 | |
| Bob Vila | US | $200 to $3,000 | June 14, 2024 |
| Source | Where | Range | Average | Page updated |
|---|---|---|---|---|
| This Old House | US | $7,000 to $15,000 | March 4, 2026 | |
| HomeGuide | US | $10,000 to $18,000 | January 23, 2026 | |
| Bob Vila | US | $1,000 to $15,000 | June 14, 2024 |
Sump pumps and drains
Two common parts of a waterproofing job, priced on their own. Why basements get wet.
| Source | Where | Range | Average | Page updated |
|---|---|---|---|---|
| Angi | US | $800 to $3,000 | $1,100 | May 3, 2026 |
| This Old House | US | $1,200 to $2,500 | March 4, 2026 | |
| Thumbtack | US | $476 to $1,462 | $834 | August 5, 2025 |
| Fixr | US | $800 to $2,000 | $1,400 | January 31, 2025 |
| Forbes Home | US | $600 to $1,800 | $1,200 | October 3, 2024 |
| Bob Vila | US | $1,200 to $2,500 | $1,500 | January 12, 2024 |
| HomeGuide | US | $600 to $2,500 | August 26, 2023 | |
| Angi | Houston, TX | $789 to $1,479 | $1,085 | June 5, 2026 |
| Angi | Dallas, TX | $825 to $1,547 | $1,134 | June 19, 2026 |
| Angi | Austin, TX | $785 to $1,472 | $1,079 | June 4, 2026 |
| Angi | Columbus, OH | $764 to $1,433 | $1,051 | June 12, 2026 |
| Source | Where | Range | Average | Page updated |
|---|---|---|---|---|
| HomeAdvisor | US | $400 to $27,000 | $9,250 | June 20, 2026 |
| HomeAdvisor | US | $10 to $100 per linear ft | $45 | June 20, 2026 |
| Angi | US | $500 to $18,000 | $9,250 | May 30, 2026 |
| This Old House | US | $10 to $100 per linear ft | March 4, 2026 | |
| HomeGuide | US | $500 to $8,800 per job (exterior yard or curtain drain) | February 5, 2026 | |
| HomeGuide | US | $10 to $35 per linear ft (exterior yard or curtain drain) | February 5, 2026 | |
| HomeGuide | US | $4,000 to $17,000 per job (interior basement) | February 5, 2026 | |
| HomeGuide | US | $40 to $85 per linear ft (interior basement) | February 5, 2026 | |
| HomeGuide | US | $30 to $90 per linear ft (exterior perimeter) | February 5, 2026 | |
| Forbes Home | US | $1,600 to $13,000 | $6,200 | February 7, 2025 |
| Forbes Home | US | $40 to $100 per linear ft (interior) | February 7, 2025 | |
| Forbes Home | US | $10 to $100 per linear ft (exterior) | February 7, 2025 | |
| Fixr | US | $2,800 to $6,500 | $5,000 | January 31, 2025 |
| Fixr | US | $10 to $100 per linear ft (exterior) | January 31, 2025 | |
| Fixr | US | $40 to $100 per linear ft (interior) | January 31, 2025 | |
| Bob Vila | US | $500 to $18,000 | $5,000 | June 27, 2024 |
| Angi | Houston, TX | $1,980 to $6,910 | June 17, 2026 | |
| Angi | Houston, TX | $20 to $50 per linear ft | June 17, 2026 | |
| Angi | Dallas, TX | $2,070 to $7,220 | June 17, 2026 | |
| Angi | Dallas, TX | $25 to $55 per linear ft | June 17, 2026 | |
| Angi | Austin, TX | $1,970 to $6,870 | June 17, 2026 | |
| Angi | Austin, TX | $20 to $50 per linear ft | June 17, 2026 | |
| Angi | Columbus, OH | $1,910 to $6,690 | June 19, 2026 | |
| Angi | Columbus, OH | $20 to $50 per linear ft | June 19, 2026 |
Where the water table is shallow
Ohio cities with 10,000 or more homes, ranked by the share of land inside city limits where USDA rates a shallow water table a limit for basements.
| City | Shallow water table |
|---|---|
| Avon Lake, OH | 94% |
| Brunswick, OH | 89% |
| Hilliard, OH | 88% |
| North Ridgeville, OH | 87% |
| Medina, OH | 85% |
| Marysville, OH | 83% |
| Grove City, OH | 83% |
| North Royalton, OH | 82% |
| Reynoldsburg, OH | 82% |
| Wadsworth, OH | 82% |
Written by Foundation Soils from the sources linked above and our county data. Sources and methods.