French drain installation in Akron, Ohio

A French drain is a trench with perforated pipe and gravel that collects water and carries it somewhere else. This guide explains how it is used in yards and around foundations, where it falls short, and what to ask before you hire.

How a French drain works

The trench is lined with filter fabric, filled with gravel, and holds a perforated pipe with a steady downhill slope. Water drains into the gravel, enters the pipe, and flows to an outlet such as a sump pit, a storm drain connection where allowed, or a lower part of the property.

The slope and the outlet are what make it work. A drain that has nowhere to discharge or that runs level will just hold water.

Yard drains versus foundation drains

Exterior or curtain drains intercept water from a slope or a wet yard before it reaches the house. Footing drains sit at the base of the foundation and collect water at the footing. Interior drains run inside the basement along the wall base and usually lead to a sump pit.

Which one fits depends on where the water is coming from. A drain in the wrong place can be expensive and still leave the basement wet.

Check these before installation

Confirm where the discharge will go, who owns that area, and whether local rules apply. Roof water, lot grading, and downspouts should be corrected first, because a drain is not a replacement for good surface drainage.

Ask where utilities run before anyone digs, and make sure underground lines are located and marked.

Often a good fit when

  • A yard or slope sends water toward the house
  • Soggy ground stays wet for days after rain
  • A contractor has traced the basement water to groundwater near the wall

Limits to keep in mind

  • It needs a legal, workable outlet and enough slope
  • It does not seal cracks or stop water that comes through the wall
  • Gravel and fabric can clog over time, so ask about cleanouts and maintenance
  • Trenching disturbs lawn, landscaping, and sometimes hard surfaces

Questions to ask any contractor

  • Where does the water come from, and why is a drain the right fix?
  • Where will it discharge, and is that location allowed?
  • How is the slope set, and what are the cleanout points?
  • What restoration is included, and what is not?
  • What does the warranty cover?

Comparing two or three written estimates is reasonable. This is general educational guidance, not a recommendation of any specific contractor.

How this site works: we are an independent guide and referral site, not a contractor. If you send an inquiry, it may be passed to an independent contractor, who is responsible for the work, pricing, licensing, and warranty. See how this site works.

Frequently asked questions

Will a French drain stop my basement from leaking?

It can if the water is coming from groundwater or a wet slope near the wall and the drain has a proper outlet. It will not seal a leaking crack or fix a gutter that dumps water against the house. The right drain depends on where the water enters, so ask the contractor to explain what they found.

Do I need a sump pump or a battery backup?

A sump pump is common where a drain system collects water and needs to send it out of the basement. Pumps fail when power is out or when they wear out, so many homeowners ask about a battery backup or a water-powered backup. Ask the contractor where the discharge goes and how the pump will be tested and maintained.

Do I need a permit for foundation or drainage work?

Many municipalities require permits for structural work and for some drainage changes, and where water can be discharged is often regulated. Requirements differ by community, so confirm with your city or village. A contractor typically handles any application, but check who is responsible in your written agreement.

What should I ask a contractor before hiring?

Ask for proof of the license and insurance they hold where required, how they diagnosed the problem, which method they recommend and why, who pulls any permit, what restoration is included, and what the written warranty covers and whether it transfers to a new owner.

Is this website a waterproofing or foundation contractor?

No. This is an independent information and referral website. It does not perform waterproofing or foundation work. If you submit an inquiry, it is passed to an independent contractor who may contact you. The contractor, not this website, is responsible for the work, pricing, licensing, and warranty.

How much does basement waterproofing or foundation repair cost?

Cost varies with the method, the size of the area, access, finishes that must be removed, drainage and sump components, permits where required, and restoration. This site does not publish prices as local quotes. Get written estimates that spell out scope, restoration, permit handling, and warranty terms.

Should I get more than one estimate?

Comparing two or three written estimates is reasonable for a project of this size. Compare the diagnosis, the method, the extent of the work, restoration, and warranty terms, not just the total.

Request a callback

Your inquiry may be shared with an independent contractor who can contact you. Submitting does not obligate you to hire anyone. Do not use this form for emergencies.

Ready to talk to a contractor?

Describe your basement or foundation problem and ask for a callback. There is no obligation, and you can compare more than one estimate.