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French Drain Cleaning and Drainage Inspection

An existing drain that has silted up looks exactly like not having one. Inspection and hydro jetting clears silt and root intrusion and tells you whether the system is still doing its job.

From $345  |  Hydro jetting  |  Montgomery County

Book an inspection

Tell us roughly when the system went in, if you know.

How often does a French drain need cleaning?

Inspect annually and have the system professionally cleaned every one to two years. Bring that forward if there are large trees close to the run, because roots are the most common cause of failure in this area after silt.

The usual signs are water backing up, draining more slowly than it used to, or reappearing somewhere it had stopped. By the time water is visibly pooling again the system has usually been partly blocked for a while.

Cleaning is done with hydro jetting, high pressure water at roughly 1,500 to 4,000 psi run through the pipe. It clears silt and roots without damaging the pipe, which a mechanical snake alone will not reliably do.

What it costs

Maintenance is a fraction of replacement, which is the entire argument for doing it on a schedule rather than when the yard floods again.

Scope

Typical range

What drives it

Inspection and cleaning

$345 to $750+

System length, access and how much silt has built up.

Severe root or silt blockage

Quoted on site

Extent of intrusion and whether sections need replacing.

Full replacement

Quoted on site

Only when a system is beyond clearing. See yard drainage solutions.

If a system has never been maintained it is worth inspecting before deciding anything. Clearing it is often enough.

French drain trench with perforated pipe and gravel installed in a Montgomery County yard

Signs your system has stopped working

A drain does not announce that it has failed. These are the tells.

Water pooling somewhere that used to drain fine

The yard draining noticeably slower after rain than it used to

Water backing up at a catch basin or grate

Large trees within root distance of the run

No idea when, or whether, the system was last cleaned

Drainage maintenance questions

Inspect annually and have the system professionally cleaned every one to two years. Sooner if there are large trees nearby, because roots are the most common cause of blockage here.

It starts at $345 and runs to $750 and up depending on system length, access and how much has built up. A system that has never been maintained sometimes needs sections replaced rather than cleared.

Water backing up, draining slowly after rain, or pooling somewhere it did not used to. A drain that has stopped working looks exactly like not having one.

High pressure water, usually 1,500 to 4,000 psi, run through the pipe to clear silt and roots without damaging it. It is the professional method and considerably more effective than a snake alone.

Yes. A blocked system holds water against the structure, which is the situation the drain was installed to prevent in the first place.

Other things we do

Trenching, cut and fill, site prep and establishing the falls.

Driveways, slabs and flatwork over prepared, drained subgrade.

Site drainage, detention and earthwork for commercial property.

Find out if your drain still works

Magnolia, The Woodlands, Tomball, Conroe and Spring, plus Porter, Humble, Kingwood, Waller and the rest of Montgomery County.

(936) 827-6017
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