Serving Hillsborough, Pinellas and Pasco counties
Plate compactor packing backfill over a finished drainage trench

How much does French drain installation cost in Tampa?

Most Tampa yards get an exterior French drain. Published local pricing puts that work at $23 to $35 per linear foot. National guides run wider, at $10 to $50 per foot outdoors. A 100 foot run lands near $2,300 to $3,500. Depth, soil and the outlet set your final number.

We handle french drain installation in Tampa as part of our drainage work. Every dollar figure below comes from published cost guides and Tampa contractor pricing surveys. None of them are our quotes. Your lot sets your price, and that takes someone standing in the yard where the water sits.

What does a French drain cost per foot in Tampa?

HomeBlue’s Tampa pricing survey puts French drains at $23 to $35 per linear foot in this market. That covers the trench, the perforated pipe, the stone and the labor. National guides spread wider because they average basement work into the number. Outdoor drains sit at the low end of every published table.

The table below pulls published per foot ranges. The Tampa line comes from HomeBlue, which builds its numbers from local contractor feedback. The national lines come from HomeAdvisor’s 2026 cost guide.

Drain typePublished cost per linear foot
Yard or exterior drain, Tampa$23 to $35
Exterior perimeter drain, national$10 to $50
Curtain drain, national$10 to $25
Trench or yard drain, national$30 to $90
Interior basement drain, national$40 to $100

That last line rarely applies here. Florida homes sit on slabs rather than basements, because groundwater sits too close to the surface for a dug basement. If a quote hands you basement pricing for a yard drain, ask why.

What does a 100 ft or 200 ft French drain cost?

At Tampa’s published rate of $23 to $35 per foot, 100 feet runs about $2,300 to $3,500. Two hundred feet runs about $4,600 to $7,000. HomeBlue lists a 100 foot job at $2,260 to $3,520. National guides show wider bands because they fold in deep and interior work.

Drain lengthTampa rate, $23 to $35 per footNational exterior range
100 linear feet$2,300 to $3,500$1,000 to $6,500
200 linear feet$4,600 to $7,000$2,000 to $13,000

The national column comes from LawnStarter’s 2026 guide. Fixr puts a finished 100 foot exterior drain at $3,500 to $4,000, just above the Tampa band. Length alone does not price a job. A 200 foot run across open grass can cost less than 60 feet that crosses a driveway.

What drives the price up or down?

Depth is the biggest lever. A shallow yard trench moves a fraction of the dirt a footing depth drain does. Next comes what the trench has to cross. Then how far the water travels to a legal outlet, and what gets put back after.

Here is where the money goes on a typical Tampa yard job:

  • Depth and machine time. HomeAdvisor puts drainage labor at $50 to $100 per hour. Anything past hand digging depth needs excavation equipment on site.
  • Hard crossings. Bob Vila lists driveway drains at $45 to $55 per foot against $20 to $40 for open yard. Every slab a trench crosses means a saw cut and a patch.
  • Restoration. New sod runs about $1 to $2 per square foot in the same guide. A 200 foot trench through a good lawn is a real line item.
  • Permits. Cost guides list drainage permit fees from about $50 to $225. Whether you need one depends on your city or county, so ask before you plan around it.
  • Add ons. A sump pump adds $625 to $2,625 according to Lawn Love. That comes up when a yard has no gravity outlet at all.

Materials are the smaller half. LawnStarter prices perforated pipe at $0.50 to $3 per linear foot and gravel at $25 to $53 per ton. The trench is what you are paying for.

How does Tampa’s water table change the job?

A French drain only works if it sits above the wet season water table. In much of Tampa the groundwater rises within a few feet of the surface from June through September. That caps how deep a drain can go. Crews make up the lost depth with a wider stone trench, which adds material and hauling.

The Southwest Florida Water Management District calls June through September the rainy season here. Rainfall averages about 7.8 inches a month, roughly 60 percent of the year’s total. The National Weather Service office in Tampa Bay puts normal June rainfall at Tampa International at 7.37 inches. It sets the region’s thunderstorm season from May 25 to October 10. A yard that drains fine in March can sit under water in July.

Sand is the other local factor. Fine sand migrates into open stone and plugs a drain from the inside. Florida drainage guides call for washed stone wrapped in non woven filter fabric for that reason. Pea gravel is a poor choice here, since sand passes straight through it.

Flat ground is the last one. A drain needs fall to move water, and many Tampa lots have almost none. When the yard is simply low, land grading and fill can beat a buried pipe. We covered that side of the budget in our guide to what fill dirt costs in Tampa.

Where can a French drain legally discharge?

Water has to go somewhere legal. The City of Tampa’s stormwater manual is direct about it. Grading and excavating must not change surface drainage patterns to the detriment of neighboring properties or public rights of way. Soil drainage must go to an approved drainage system, not onto the property next door.

That rule shapes the design. Common outlets are a swale or a lower spot on your own lot. Others are a pop up emitter or a permitted tie in to a public system. Rules differ by city and county. Confirm yours with the local building department before anyone digs, since Pinellas and Pasco each run their own review.

Are French drains worth the money?

For a yard that holds water after a summer storm, usually yes. A working drain costs a few thousand dollars once and lasts decades when built with filter fabric and clean stone. Weigh that against repeat damage to slabs, sod and footings, plus the parts of the yard you cannot use.

A drain is the wrong buy in two cases. If groundwater sits at the surface through the wet season, a buried pipe just fills up. It never moves the storm water. And when the low spot is a grading problem, moving dirt costs less than burying pipe.

Budget for upkeep either way. Cost guides put periodic flushing at a few hundred dollars. A drain built without filter fabric usually has to be dug up and rebuilt once the sand gets in.

How do you get a real number for your yard?

Someone has to see where the water sits and where it can go. That means a walk of the lot, a look at the low spots, and a check on the outlet. We do that at no charge for homeowners across Hillsborough, Pinellas and Pasco counties. Call 813-453-5883 or send us the details.

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