Foundation and Structural · Waterproofing and Crawlspace
French Drain Installation Cost, Permits and Who Does the Work
First-time installation of french drain on a single-family home, typically handled by a drainage contractor.
Verified August 2026
Typical cost
$4,200
National, standard scope
Range
$1,500 – $11,000
Low to high scope
Trade
Drainage contractor
DIY difficulty 2/5
Permit relevance
60/100
Scope dependent
Do I need a permit for french drain installation?
Depends on scope
A like-for-like french drain job is often exempt, but changing capacity, routing, structure or wiring usually triggers a permit. Always confirm with the building department that has jurisdiction over your address.
Cost breakdown
Modeled national figures for a standard single-family job.
| Low endSimple scope, easy access, no surprises | $1,500 |
|---|---|
| TypicalWhat most homeowners pay | $4,200 |
| High endLarge scope, upgrades or difficult conditions | $11,000 |
| Job type | Project |
| Primary intent | cost |
| Cost varies by location | 65/100 |
Related jobs
Built from the service ontology, not hand-curated link lists.
Cost by state
Labor rates, code adoption and permit fees move this price between states.
Also searched as
These phrasings all map to this one canonical entity.
install french drain · french drain installation · new french drain · french drain install cost · put in french drain
Frequently asked questions
How much does french drain installation cost?
Most homeowners pay between $1,500 and $11,000, with $4,200 typical for a standard single-family job. Figures are modeled national estimates, not quotes.
Do I need a permit for french drain work?
Sometimes. Permitting depends on scope and on your jurisdiction; like-for-like work is often exempt while anything structural, electrical or gas-related usually is not.
Who does french drain installation?
A drainage contractor handles this job. DIY difficulty is rated 2/5 (5 = very DIY friendly).
Does the price change much by location?
Yes. Labor rates, local code requirements and permit fees move this price meaningfully between metros, so we publish local pages for this job.
Coverage status
How far Hometriva expands this entity, and why. Depth follows opportunity, not page-count targets.
| Tier | Tier 2 |
|---|---|
| Depth level earned | Level 4 of 6 |
| Page quality score | 68/100 (improve) |
| Traffic opportunity | 51/100 |
| Localization | 78/100 |
| Calculator potential | 80/100 |
| Troubleshooting potential | 33/100 |
- Level 1: Canonical national pageAlways created — the entity's home in the graph.
- Level 2: Cost, calculator and comparison pagesCalculator potential 80/100, comparison 0/100.
- Level 3: State coverageLocalization 78/100.
- Level 4: Major metro and county coverageCost localization 65/100.
- Level 5: Separate local cost, permit and rule pagesPermit relevance 60/100.
- Level 6: Deep local variants and question pagesReserved for Tier 1 entities where local rules genuinely differ.