French Drain vs. Grading
Compare French drains and yard grading, what each solution is designed to do, and why some properties need a combination.
The basic difference
Grading changes surface slope. A French drain collects and moves water through a subsurface system. They solve different hydraulic problems.
Grading may fit when
- Surface slope is visibly wrong.
- Water can be redirected safely above ground.
- Low spots are the main issue.
A French drain may fit when
- Water moves through or saturates soil.
- A wet corridor persists despite acceptable surface slope.
- Subsurface interception is needed.
Sometimes both are used
A combination can manage both surface and subsurface water, but more infrastructure is not automatically better. Diagnose the source first.
Questions homeowners often ask
Can I diagnose this from photos alone?
Photos can help show symptoms, but slope, elevation, soil, discharge options, utilities, and rainfall behavior may require an on-site evaluation.
Should I get more than one estimate?
For meaningful drainage work, comparing scope—not just price—can be useful. Ask each provider what problem they believe they are solving and where the water will ultimately go.
Who should verify permits?
Ask the provider who will be responsible for checking and obtaining any permits or approvals required for the specific property and scope.
Drainage design depends on site conditions. Use the estimator for planning or request an on-site assessment from an independent provider.