How much does it cost to put in a French drain?
According to Fixr, the average French drain costs $4,500. An exterior drain located fairly close to the surface could cost as little as $1,000, or $25 per linear foot on average. Drains installed under your basement floor could cost $2,000 or more. Expect to pay $60 to $70 per linear foot for installation.
How deep does a French drain need to be?
About 8 inches to 2 feet deep
French drain depth: About 8 inches to 2 feet deep should be sufficient for many water-diverting projects, though related systems, such as those built around foundations and sub-ground living spaces, as well as the bases of retaining walls, may be deeper.
Why is a French drain called a French drain?
What Is a French Drain? While you might think that the French drain originated in France, the name derives from its inventor, Henry Flagg French, a farmer from New England born in 1813. Fascinated by agriculture, in 1859 French wrote a book, “Farm Drainage,” highlighting the drainage systems in use at the time.
What do I put at the end of a French drain?
To install a T-shaped pipe at the end of the French drain, attach a T-shaped connector to the end of the piping used in the French drain. To spread the water over an even larger area, you can add additional length of pipe to the sides of the T-shaped pipe to aim the water in opposite directions.
How long does it take to install French drain?
6 – 8 Hours | A simple french drain installation can be done in one day by a team of professional landscapers barring any complications. 1 – 2 Days | If you rent a trencher and do the project yourself, you can expect it to take up most of your weekend.
What is a French drain?
How to Install a French Drain – 2021 – MasterClass A French drain is a ditch located on a person’s property, usually in the yard, that prevents stormwater from collecting near a house. This can prevent foundation issues and other water problems.
Does a French drain need a slope?
In order to work well, your French drain needs to be constructed on a slight downhill grade. This allows water to drain away from the problem area through the force of gravity. If no natural downward slope exists, you can create a slope by digging progressively deeper as you work your way along the trench.
Should you install a French drain indoors or outdoors?
With a French drain, however, water near the foundation can be rerouted and deposited elsewhere. If water continues to invade your basement despite seemingly adequate outdoor drainage, then you might need to install a French drain indoors.
How do I install a French drain around my foundation?
If you’re installing a French drain around your foundation to prevent basement moisture, take care to position the pipe below slab or finished floor level. After digging your trench, fill it with a few inches of crushed stone. Cover the stone with water-permeable landscaping fabric to discourage weed growth. Next, lay piping into the trench.