Is a channel drain cheaper to add while a driveway is being poured?
Yes. When the channel is set in the forms before the pour, there is no sawcutting, breaking out or patching, and the slopes of the new slab can be built to run to it.
Cost guide
How much does a channel drain cost in Irving?
A channel drain is mostly a concrete job with a drain in it. The slab, the grate rating and the path to an outlet set the number.
Updated November 5, 2026
Key takeaways
- As a national budgeting range, a driveway or patio channel drain runs about $700 to $2,500.
- Cutting and replacing existing concrete is often the largest single cost.
- A grate that cars cross costs more than one for foot traffic.
- Forming a channel into new concrete costs less than cutting one into an old slab.
As a national budgeting range, a driveway or patio channel drain runs about $700 to $2,500 installed. A short channel formed into new concrete with a nearby outlet sits low; a long, vehicle-rated channel sawcut into an old driveway and piped to the curb sits high. Rein Irving Drainage Company breaks down the cost below.
Where the money goes in a channel drain
A channel drain is a narrow trough with a grate across the full width of a paved area. It catches water that sheets across concrete, which a round catch basin would only partly intercept.
| Part of the job | Existing slab | New pour |
|---|---|---|
| Concrete | Sawcut, break out and haul a strip; pour back around the channel | Channel set in the forms; no demolition |
| Channel and grate | Same parts either way; cost rises with length and rating | Same |
| Slope to the channel | Limited to the slope the old slab already has | Built into the new slab |
| Outlet pipe | Trench from the channel end to an outlet, often under a walk or lawn | Can be placed before the pour |
| Outlet | Pop-up emitter, swale, curb core or pump | Same choices |
| Restoration | Concrete patch, sod and sprinklers along the pipe | Mostly sod and sprinklers |
Grate choice and what it costs
Grates are rated for the load that crosses them. Light plastic grates suit patios and pool decks with foot traffic. Driveways need a grate and channel rated for vehicles, usually heavier plastic with a reinforced frame or metal such as ductile iron, and those cost more per foot. Choosing a patio grade grate for a driveway saves money until a tire cracks it. Decorative metal grates on patios are a design choice that also raises the price.
Three Irving scenarios
These are illustrations of where jobs fall in the national budgeting range, not quotes.
Garage apron on a driveway that slopes to the house
Water runs down the drive and pools at the garage door. A vehicle-rated channel across the full width, sawcut into the existing slab and piped to the side yard or the curb, is the classic version of the job. With a long pipe run and a curb core, it lands toward the top of the range or beyond it, plus any permit.
Patio edge against the back wall
A patio poured with a slight fall toward the house sends water to the slab. A light-duty channel along the house side, piped a short distance to a lower part of the lawn, sits toward the lower end. Pairing it with buried downspouts on the same line can save a second trench.
New driveway replacement
If a driveway is being replaced anyway, the channel goes in with the forms, and the new slab is built to fall to it. This is usually the most cost-effective channel drain an owner will buy.
When the water comes from the street
Some driveways catch water from the street, not the roof. A channel at the top of the drive can intercept it, but it is fighting the street’s flow, and the right fix may be partly the city’s. The City of Irving has rebuilt a driveway approach on Rochelle Road to keep stormwater in the right-of-way, which shows the issue is recognized as a public-side question in some cases. For Irving, we confirm the rule per address. The street water guide explains the options before you pay for a channel.
What raises or lowers the number
- Length: more channel, grate and concrete work, but a lower cost per foot.
- Outlet distance: a curb core or long run under a walk adds trench and possibly a permit; Coppell’s 2022 residential curb core permit was $100.
- No gravity outlet: the channel feeds a sump, priced separately.
- Sharing a line: a channel, a catch basin and downspouts on one solid pipe cost less than separate outlets.
Channel drains and trench drains are close cousins; the French drain versus trench drain guide explains why a gravel trench is the wrong tool for paving. For larger lots and parking areas, see commercial drainage.
Getting a written price
A clear estimate names the channel length, the grate rating and material, how much concrete is cut and replaced, where the outlet is and what restoration is included. Compare it with the drainage cost overview, try the cost tool, or send photos of the paving during rain for a written estimate.
Questions people ask
What part of a channel drain job costs the most?
On an existing driveway or patio, usually the concrete: sawcutting a strip, removing it, setting the channel and pouring back. On a new pour, the pipe run to the outlet is often the larger share.
Does a longer channel cost proportionally more?
Not exactly. Each extra foot adds channel, grate and concrete work, but the outlet, the pipe to it and setting up the job are paid for once, so a longer channel costs more in total but less per foot.
Water across the driveway or patio?
Send a photo of the paving during or after rain and show where it ends up.