By Johnny Flynn
ProMatcher’s French Drain Cost Report is designed to help you learn about the cost of installing a french drain. Use this guide to get pricing information about french drain installation and replacement. You will see that installation costs may vary significantly from city to city. Use our free matching service to request free price quotes from local cleaning companies.
What is a French Drain?
A french drain (which may also be called a curtain drain, perimeter drain, or a footing drain) helps to direct water from your home's foundation. This helps to keep your basement dry, while protecting the structural integrity of your home. In many cases, an exterior french drain is just a sloped, gravel-filled trench with a PVC pipe that helps to move water in the right direction. Installing an interior french drain is a little bit more complicated. The drainage system is usually installed underneath the basement floors and a sump pump helps to move the water out of your home.
You may need to put in a french drain if:
- You have a wet basement or a basement that floods frequently
- You have a "soggy yard" or water pools on parts of your lawn when it rains
- You usually have standing water on your driveway during a rainstorm
How Much Does a French Drain Cost?
On average, it costs about
$16.00 to $47.00 per linear foot install an exterior french drain. This typically covers the cost of labor, materials, and equipment rental fees. However, the cost may vary based on a number of different factors including the length of the drain pipe and the unique site conditions. This ballpark estimate is based on research completed by our team, as well as pricing information collected from contractors around the country.
| Average Cost to Install a French Drain |
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| Charlotte, NC | $18.55 - $20.32 per linear foot | | Chicago, IL | $23.26 - $25.48 per linear foot | | Columbus, OH | $18.31 - $20.06 per linear foot | | Houston, TX | $18.35 - $20.10 per linear foot | | Indianapolis, IN | $17.35 - $19.01 per linear foot | | Jacksonville, FL | $18.49 - $20.25 per linear foot | | Los Angeles, CA | $27.18 - $29.78 per linear foot | | New York, NY | $43.12 - $47.24 per linear foot | | Philadelphia, PA | $25.17 - $27.58 per linear foot | | San Antonio, TX | $19.04 - $20.86 per linear foot | | San Diego, CA | $26.33 - $28.84 per linear foot | | Seattle, WA | $24.16 - $26.47 per linear foot | | Free French Drains Cost Estimates |
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Factors Impacting the Cost of French Drain Installation
► 1. Your geographic location
Prices can vary significantly by region. Labor costs, in particular, will can vary greatly - even within the same state. For example, the cost to install a french drain in Brooklyn, NY may be very different than the cost in Buffalo, NY. Overall, wages tend to be higher in major cities where the cost of living is well above the national average.
► 2. Exterior or interior french drains
Interior french drain can be much more expensive than exterior french drains. These projects tend to be more labor-intensive and they may require additional equipment and materials. For example, you may also need to install a sump pump or additional basement waterproofing.
► 3. Length of drain
French drain installers typically quote jobs by the linear foot. The longer the drain, the more you can expect to spend.
► 4. Trench depth
Most exterior french drains will have a trench that is about 3 feet deep. Interior french drains usually require deeper trenches. This additional excavation work may increase the cost of the job.
► 5. Equipment required
What type of equipment does the job require? Can the trenches be dug by hand? For larger projects, it may be more efficient to use a backhoe excavator.
► 6. Permitting
Putting in a french drain may require a permit in some areas. If this is the case, you will be responsible for any additional permit inspection fees.
Last Updated: February 15, 2022
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06904, Stamford, Connecticut - May 25, 2021
Dry Well Installation and Construction$3,231.80 to $4,407.00 for standard concrete drywell
This is an estimated quote for dry well installation. Price also includes mid-size, concrete dry well (700 gallons), excavation, trenching, gravel, and piping materials. Does not include construction permits, percolation test, or oversized drywells.
Reported by:
ProMatcher Research Team
See the Stamford French Drains Cost Report
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98108, Seattle, Washington - February 26, 2020
French Drain Installation$24.16 to $26.47 per linear foot (exterior drain)
Includes labor. Cost estimate also includes trench excavation, perforated piping, backfill material, and equipment rental. Excludes re-landscaping, sump pumps, indoor drains, dry well installation, and decorative grates.
Reported by:
ProMatcher Research Team
See the Seattle French Drains Cost Report
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07055, Passaic, New Jersey - May 25, 2021
Dry Well Installation and Construction$2,888.60 to $3,939.00 for standard concrete drywell
Labor is included in this dry well installation cost. Does include mid-size, concrete dry well (700 gallons), excavation, trenching, gravel, and piping materials. Estimate does not include construction permits, percolation test, or oversized drywells.
Reported by:
ProMatcher Research Team
See the Passaic French Drains Cost Report
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73034, Edmond, Oklahoma - May 25, 2021
Dry Well Installation and Construction$2,015.20 to $2,748.00 for standard concrete drywell
This quote takes into account the cost of drywell construction. It includes excavating soil, installing a concrete drywell (700 gallon capacity), trench digging, laying pipes, and spreading gravel. Price excludes soil analysis, perc test, cost of permits, and larger dry wells.
Reported by:
ProMatcher Research Team
See the Edmond French Drains Cost Report
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10701, Yonkers, New York - May 25, 2021
Dry Well Installation and Construction$3,124.00 to $4,260.00 for standard concrete drywell
Price quote accounts for the cost of drywell construction. Estimate takes into account excavating soil, installing a concrete drywell (700 gallon capacity), trench digging, laying pipes, and spreading gravel. It excludes soil analysis, perc test, cost of permits, and larger dry wells.
Reported by:
ProMatcher Research Team
See the Yonkers French Drains Cost Report
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11226, Brooklyn, New York - May 25, 2021
Dry Well Installation and Construction$3,997.40 to $5,451.00 for standard concrete drywell
Includes cost estimate for drywell construction. Includes excavating soil, installing a concrete drywell (700 gallon capacity), trench digging, laying pipes, and spreading gravel. Price excludes soil analysis, perc test, cost of permits, and larger dry wells.
Reported by:
ProMatcher Research Team
See the Brooklyn French Drains Cost Report
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