# What happens during a drainage installation?

> What happens during drainage installation in Plano: the site visit, permits, Texas811 locates, the dig, the water test, restoring the lawn and the walk-through.

URL: https://clayplanodrainagecompany.com/guide/what-happens-during-drainage-installation/

From the first look at the yard to the last walk along the route. What we do at each stage, what we ask of you, and what the lawn looks like when we leave.

Last Updated: November 11, 2026

The short answer

A drainage installation runs in a set order: a site visit and written estimate, permits and HOA approval where needed, Texas811 locates and a painted route, a narrow trench dug to the measured fall, pipe and stone set and tested with water before backfill, then sod and sprinkler lines put back and a walk-through of the finished system.

Key takeaways

- Nothing is dug until Texas811 has marked the buried utility lines and our route is painted in white.
- Private lines such as sprinkler pipe, landscape lighting and pet fences aren't part of Texas811 marking, so tell us where yours run.
- The system is tested with water while the trench is still open.
- The sod we cut goes back, and sprinkler lines we cross are repaired.
- Right-of-way work needs Plano's Engineering Permit; we arrange it as part of the job.

## Wondering what a drain install will do to your yard?

It’s easy to picture the whole lawn torn up. A drain goes in along one narrow line, and the order of the work is what keeps the rest of the yard intact.

[Clay Plano Drainage Company](https://clayplanodrainagecompany.com/) installs [yard drainage systems](https://clayplanodrainagecompany.com/yard-drainage/) in Plano and nearby cities, and every job follows the same sequence. Here is each stage, what happens in it and what we’ll ask of you.

## Stage 1: The site visit

The visit is where the plan is made. We walk the yard with you, ideally with photos or a video from the last storm, and work out where the water comes from, where it can legally leave and what lies between.

On that visit we:

- **Probe the soil** to see whether water is held in the ground or sitting on the surface.
- **Measure the fall** from each wet area to the street side of the lot.
- **Find the outlet:** an emitter in the front lawn, an existing line that still works, or the curb.
- **Note obstacles:** fences, gates, AC pads, trees, beds, paving and the width of the side yards.

You get a written estimate with the route, the run lengths, each basin or cleanout, the outlet and what gets restored. The guide to [fixing yard drainage problems](https://clayplanodrainagecompany.com/guide/how-to-fix-yard-drainage-problems/) explains how we choose the fix.

## Stage 2: Permits and approvals

Two kinds of approval can apply, and they’re separate. One comes from the city, the other from your HOA.

| Approval | When it applies | Who handles it |
| --- | --- | --- |
| Plano Engineering Permit for public infrastructure | Any work in the public right-of-way, such as a curb outlet or a line under the parkway | We arrange it as part of the job; the approved permit stays on site during the work |
| Neighboring city right-of-way or easement permit | Work in city right-of-way or easements in Frisco, Allen, Murphy and others | Confirmed for the address and arranged with the job |
| HOA approval | Where your subdivision’s guidelines cover exterior or drainage work | You request it, using the route and outlet from our estimate |

[Plano’s drainage rules](https://clayplanodrainagecompany.com/guide/plano-drainage-rules/) cover the permit and lot-grading rules in more detail.

## Stage 3: Locates and the painted route

No trench opens until buried utility lines are marked. We call Texas811, the state’s call-before-you-dig center, and the utilities mark gas, power, water and communication lines with flags and paint.

Texas811 covers lines the utilities own. Your own lines aren’t part of it, so before the dig, tell us about:

- Sprinkler mains, valves and heads along the route
- Landscape lighting and low-voltage wiring
- Invisible pet fences
- Gas or power lines to a grill, pool, shed or outbuilding

We then paint the drain route in white and walk it with you. That’s the moment to raise a bed, a tree or a sprinkler head you want us to work around.

## Stage 4: The dig and the build

The trench follows the painted line and stays narrow. Sod along the line comes up in strips and is kept to go back down, and the soil from the trench sits on tarps beside it.

What goes in depends on the fix:

1. **The trench bottom** is shaped to the fall we measured, so water runs downhill the whole way.
2. **[French drain](https://clayplanodrainagecompany.com/french-drain-installation/) sections** get filter fabric, washed stone and perforated pipe, wrapped closed over the top.
3. **Solid pipe** carries water from [downspouts](https://clayplanodrainagecompany.com/downspout-drainage/), [basins](https://clayplanodrainagecompany.com/catch-basins/) and drain sections to the outlet.
4. **Cleanouts** go in where lines join or turn.
5. **The outlet** is set: an emitter in open lawn, a tie-in to a proven line, or a permitted curb outlet.

Silt controls keep loose soil out of the street and storm inlets while trenches are open. Plano’s storm system runs under a state stormwater permit that targets construction runoff, so sediment stays on the lot.

## Stage 5: The water test

Before any backfill, we put water into the system and follow it to the outlet. This is where a low spot or a slow joint shows up, while it can still be fixed in an open trench.

If you’re home, watch it with us. Seeing water come out of the emitter at the front of the lot is the clearest proof the route works.

## Stage 6: Putting the yard back

Backfill goes in over the stone and pipe, and the sod we lifted goes back along the same line. Sprinkler lines we crossed are repaired, and we run the affected zones to check them.

After we leave, the cut lines in the sod show until it roots back in. Water those strips with the rest of the lawn so the roots take.

## Stage 7: The walk-through

At the end, we walk the finished system with you. You’ll see where each line runs, where the cleanouts are and where the water leaves.

That walk is also your maintenance briefing: which grates to clear after storms, which outlet to keep free of mulch and clippings, and how to run a hose test through a cleanout. The guide on [how long a French drain lasts](https://clayplanodrainagecompany.com/guide/how-long-does-a-french-drain-last/) covers that upkeep.

## What the install costs

Our typical range for a whole-yard drainage route is $3,000 to $8,000 per project; the site visit and written estimate set yours. Run length, depth, the outlet and restoration move it.

The [drainage cost guide](https://clayplanodrainagecompany.com/guide/drainage-cost-plano/) breaks down each kind of job, and [where yard drain water can go](https://clayplanodrainagecompany.com/guide/where-can-yard-drain-water-go/) explains the outlet choices. When you’re ready to plan the work, call [(469) 551-8518](tel:+14695518518) or send photos through the form below.

## Questions about this guide

### Do I need to be home during the drainage installation?

Not the whole time. Plan to be there for the walk along the painted route before digging and for the walk-through at the end. It helps to leave the gate and the sprinkler controller reachable, and to keep pets inside while trenches are open.

### What happens to the soil dug out of the trench?

It goes on tarps beside the trench, not on the lawn, and most of it goes back in as backfill over the stone. Any extra soil is handled as the written estimate sets out.

### Who gets the permit when the outlet goes to the curb?

We arrange it as part of the job. In Plano, work in the public right-of-way, a curb outlet included, goes through the city's Engineering Permit for public infrastructure, and the approved permit stays on site while the work happens. HOA approval, where your subdivision requires it, is yours to request, and our estimate gives you the route and outlet to describe.

## Related service

- [Service**Yard drainage systems** One planned route that collects roof, surface and soil water from several parts of the yard and carries it in solid pipe to a legal outlet.](https://clayplanodrainagecompany.com/yard-drainage/)

## More guides

- [Cost Guide**How much does drainage work cost in Plano?** Our typical ranges for each kind of yard drainage job in Plano, what moves a price within them, and the public figures that sit inside one.](https://clayplanodrainagecompany.com/guide/drainage-cost-plano/)
- [Learn**How do you fix yard drainage problems?** Start with where the water comes from, not with a drain. How Plano's clay, rain and lot rules shape each fix, and how to tell which one your yard needs.](https://clayplanodrainagecompany.com/guide/how-to-fix-yard-drainage-problems/)
- [Learn**How long does a French drain last?** A drain's life is set less by the pipe than by what gets into the stone and what blocks the outlet. The signs one is failing, the upkeep that keeps it going, and when to repair rather than rebuild.](https://clayplanodrainagecompany.com/guide/how-long-does-a-french-drain-last/)
- [Decision Guide**Where do you drain a French drain in Plano?** The outlet decides the design, so we choose it first. Every option a Plano yard has, what each one needs, and how to pick when the lot is flat.](https://clayplanodrainagecompany.com/guide/where-can-yard-drain-water-go/)
- [Learn**What does Plano's drainage design manual mean for homeowners?** The city's Stormwater Design Manual is written for engineers, but a handful of its rules decide what you can do in your own yard. Here they are in plain words, with the numbers.](https://clayplanodrainagecompany.com/guide/plano-drainage-rules/)

## Get an estimate for your yard

Tell us where the water stands and when. We walk the yard and send a written estimate.