French Drain Installation for Yard Drainage

Every time it rains heavily, my backyard turns into a shallow pond. Water pools across the lawn for days afterward, the soil stays soggy and squishy underfoot, and I can see a low, wet channel running along the side of the house where surface water collects and slowly seeps toward the foundation from outside. The grass is starting to die in the worst spots, mosquitoes have moved in, and I am tired of avoiding my own backyard every time there is a storm in the forecast.

I am looking for a contractor to design and install a proper French drain system to solve this at the source, not a patch job. I understand this means digging a trench along the path where water naturally collects, lining it with landscape fabric, laying perforated pipe wrapped in fabric, backfilling with washed gravel, and routing the pipe to a safe discharge point well away from the house, a neighboring property line, or the street, ideally daylighting into a pop-up emitter or a dry well. I want the trench graded with a consistent slope so water actually flows instead of sitting, and I would like the finished area restored with soil and sod or seed so the yard looks presentable again once the work is done.

What I am expecting from a contractor:
— A site visit to identify the low spots, grade the yard, and mark the best trench route before digging
— Correct pipe slope calculations and proper gravel and fabric layering so the drain does not clog with silt over time
— A clear discharge plan that does not simply dump water onto a neighbor's property
— Restoration of the lawn surface (topsoil, grading, seed or sod) after the trench is backfilled
— A written estimate covering materials, labor, and expected timeline before work begins