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Brentwood Yard Drainage

Brentwood, CA · East Contra Costa

Choosing a Yard Drainage Contractor in Brentwood, CA

Drainage work is buried once it's done, so the quote is your best chance to judge it. This checklist covers who does the work, what a good quote spells out, the questions worth asking, and the red flags, so you can compare bids on substance rather than price alone.

Cited cost ranges · No obligation

What a good drainage quote answers

  • Where does the water go?

    The outlet, named and drawn. A drain without a working outlet is the most common failure.

  • What exactly gets built?

    Route, linear feet, depth, pipe type and size, fabric, gravel, cleanouts.

  • What does the yard look like after?

    Sod, irrigation, concrete, and planting repair: included or extra.

  • Who stands behind it?

    Warranty terms, payment schedule, and a license number you can verify.

How this site works

Brentwood Yard Drainage is an independent referral website, not a contractor. When you call or send a request, it goes to an independent local drainage contractor who serves your area. That contractor gives the quote and does the work. You're never obligated to hire, and you can run any quote, from anyone, through this checklist.

Who does yard drainage work

  • Drainage specialists. Companies focused on French drains, catch basins, sump systems, and dry wells.
  • Landscape contractors. Many handle grading, swales, and drainage as part of landscape work.
  • General and concrete contractors. Common for channel drains in driveways and patios.
  • Plumbers. Some do yard drainage; most focus on pipes inside the house and sewer laterals. Ask whether drainage is a regular part of their work.

California licenses contractors through the Contractors State License Board. Which license classification fits depends on the work, so look the contractor up at cslb.ca.gov, confirm the license is active, and check the classification and any complaints. Don't rely on a claim on a truck or a website.

The quote checklist

  1. A drawing of the system: route, linear feet, every inlet (downspouts, catch basins), and the outlet.
  2. The outlet in writing: daylight, curb outlet, dry well, or other, and whether the city needs to approve it.
  3. Specs: trench depth and width, pipe type (solid or perforated) and diameter, gravel type, filter fabric, cleanouts.
  4. Surface work: concrete or paver cutting and patching, sod or rock restoration, irrigation repair.
  5. Utility marking before digging (California's free 811 service).
  6. Schedule and cleanup: start date, duration, and how excavated soil is handled.
  7. Warranty: what it covers, for how long, and what voids it.
  8. Payment: deposit and progress payments. Read the CSLB's consumer guidance on home-improvement contracts before paying.

Questions worth asking

  • Where is the water coming from, and how did you work that out?
  • Why this fix instead of downspout lines, regrading, or a catch basin?
  • How much fall is there to the outlet, and what happens in a big storm?
  • Will you use filter fabric? Why or why not?
  • Can I see a drawing, and will you mark the route before digging?
  • How do I maintain it, and is there a cleanout?

Red flags

  • No outlet plan, or "the water will just soak in" in clay soil
  • No written scope or drawing, only a lump-sum price
  • Perforated pipe for downspout lines, or no filter fabric with no explanation
  • Cash-only, or most of the money up front
  • Promises that one system will fix any amount of water
  • Pressure to sign the same day

How a request through this site works

Your request goes to an independent local drainage contractor. They'll usually want to see the yard, ideally during or after rain, or at least photos, before quoting. A firm price over the phone without seeing the yard is a red flag from anyone. Costs to expect are on the French drain cost guide, and the build itself is explained in how a French drain is installed.

Check any contractor, including one you find here

  • Ask for the contractor's CSLB license number and look it up at cslb.ca.gov. The CSLB site also explains when a California contractor license is required.
  • Get the quote in writing: the length and depth of each drain, the pipe and gravel, filter fabric, where the outlet is, and how the yard will be restored.
  • Be wary of large deposits or cash-only terms. Ask who marks utilities through 811 and who handles any permit the city requires.
  • Ask the contractor to show you the route and the fall from the farthest inlet to the outlet, and what warranty covers the work.

This site is an independent referral service, not a contractor. Your request goes to an independent local drainage contractor, who gives the quote and does the work. How this works

Common questions

Talk to a local drainage pro

Ready to stop fighting the water every winter?

Call now or send a 30-second request. You'll be connected with an independent local drainage contractor for a quote.

Call (925) 744-8357Get a Quote