How French Drain Installation Works in Tulsa, OK
From the first request to running a hose through the finished drain. Here are the eight steps most Tulsa-area drainage jobs follow, and what to ask at each one.
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Start with where the water goes
A French drain is a trench of gravel around a perforated pipe that collects water underground and carries it somewhere it can leave the lot. In Tulsa clay, the pipe does most of the work, because water soaks into the ground slowly. That makes the outlet the most important design choice.
Tulsa requires that drainage be conveyed “without causing damage to adjoining properties,” and water can't be blocked from flowing onto your lot from uphill. So the best plan carries water to the street or another approved conveyance, never toward a neighbor and never into a sanitary sewer.
Tulsa French Drain Pros is a free matching service, not a contractor. The steps below describe how independent local companies typically work.
The eight steps
Request quotes
You describe the problem through the form or by phone: where water collects, how long it stays after rain, roughly how big the area is, and whether it reaches the house, garage or crawl space. Independent drainage companies that serve your area receive the request and contact you. Tulsa French Drain Pros doesn't set their schedules or prices.
Site visit
A contractor walks the yard, ideally after a rain or with a hose running. They should look at where water comes from (roof, uphill neighbors, the street), which way the ground slopes, where downspouts dump, and which outlet options exist: the street, an approved drainage feature, a pop-up emitter or a sump.
OKIE811 locate
Oklahoma law requires anyone digging for hire to contact OKIE811 at least 48 hours ahead, excluding weekends and holidays. It's free. Utility operators mark their lines. Sprinkler lines and other private lines aren't marked, so the contractor should plan for them.
Permit check
Inside Tulsa city limits, the Watershed Development Permit rules cover excavating, grading and regrading, and work in the street right-of-way needs a separate permit. Ask the contractor whether your project needs one, or call City of Tulsa Development Services (311). Suburbs have their own rules, and HOA covenants and plats can show drainage easements.
Written quotes
Each quote should list pipe type and diameter, filter fabric, gravel type and depth, trench depth and length, the outlet and how it ends, sod or seed restoration, cleanouts, haul-off of spoil, and who handles any permit. Compare two or three quotes with the same scope.
Three-day cancel window
If you sign at home, the FTC Cooling-Off Rule generally gives you three business days to cancel, and Oklahoma law gives a similar right for financed home-solicitation sales. A reputable contractor won't push you to sign on the spot.
Install day
The crew marks the route, digs the trench with a set fall toward the outlet, lays fabric and gravel, sets perforated pipe, and backfills. Downspout lines and emitters are connected if they're in the scope. Small yard jobs are often done in a day or two, depending on length, weather and digging conditions.
Test and walk-through
Before the final payment, ask the crew to run a hose into the high end and watch it come out at the outlet. Walk the route with them, check that the outlet isn't aimed at a neighbor, confirm where any cleanouts are, and get the final invoice in writing.
What to ask on the site visit
- Where is the water coming from, and is a drain the right fix, or would regrading or downspout work do it?
- Where will the pipe outlet, and how much fall will it have over its length?
- How deep will the trench be, and what pipe, fabric and gravel will you use?
- Will there be a cleanout so the line can be flushed later?
- Does my project need a city permit, and who pulls it?
- Is sod or seed restoration in the price? Who hauls off the extra dirt?
- Can I see proof of liability insurance? Will any part of this connect to my plumbing, and if so, who is the licensed plumber?
Oklahoma doesn't issue a state license for general, landscape or drainage contractors. Plumbing, electrical and mechanical work does require a Construction Industries Board license. Ask any contractor for proof of liability insurance, and use a licensed plumber for anything tied into your home's plumbing.
Ready to compare prices? See the French drain cost guide, read about where a French drain should outlet, or check why OKIE811 comes first.
Standing water after every storm? Get free quotes.
Describe the problem once and independent Tulsa-area drainage companies can reply with no-obligation quotes.