WatertightHub
Dallas, TX

French Drain Installation Cost in Dallas

$1,450 – $6,000

Average french drain installation cost in Dallas · avg $3,750

  • Updated 2026
  • 12 local pros
  • Based on local project data
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At a glance · Dallas
Typical timeline
1–2 days
Permit
Usually required · ~$170
Local soil
expansive clay
Freeze-thaw cycles
19 / yr
Local pros
12 available

French Drain Installation cost in Dallas, TX

Perimeter drainage that channels groundwater away from the foundation before it gets in. Below is how it compares with related foundation and drainage work in Dallas.

Service in DallasLowAverageHigh
Basement Waterproofing$2,200$4,750$7,300
Foundation Repair$2,100$5,100$8,100
Crawl Space Encapsulation$2,850$5,450$8,000
French Drain InstallationThis page$1,450$3,750$6,000
Sump Pump Installation$600$1,400$2,200

Ranges reflect local labor and expansive clay soil conditions. Your quote depends on square footage, access, and severity.

What affects the cost in Dallas

Annual rainfall
34"
Freeze-thaw cycles / yr
19
Frost depth
9"

The expansive clay beneath Dallas expands and contracts with the seasons, prying open cracks that let groundwater into basements and crawl spaces.

Permits in Dallas

Exterior drainage and structural repairs are permitted work here; interior sealing and sump-pump installs frequently are not.

Issuing authority: City of Dallas Department of Buildings · typical fee ~$170

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French Drain Installation in Dallas: FAQ

How much does french drain installation cost in Dallas?+

In Dallas, french drain installation typically runs $1,450–$6,000, averaging about $3,750. The expansive clay soil and 19 freeze-thaw cycles a year are the biggest local price drivers.

Do I need a permit for french drain installation in Dallas?+

Exterior drainage and structural repairs are permitted work here; interior sealing and sump-pump installs frequently are not. Permits are handled by City of Dallas Department of Buildings, with a typical fee around $170.

Is french drain installation worth it in Dallas?+

With 34" of annual rainfall and a 9" frost depth, untreated water intrusion in Dallas tends to worsen each freeze-thaw season, so most homeowners find addressing it early is far cheaper than structural repair later.