Interior Drain and Sump System Cost in Ottawa, Wall by Wall
$70 to $150 per linear foot
Published pages seen from $50 to $230, in published Ontario contractor pricing, 2025–26. The sump pit and pump are priced separately: see the sump pump cost page.
An interior system is installed along the inside of the basement floor and carries water to a sump pit. Enter the walls the drain runs along to see what the published per-foot range comes to.
Last reviewed 2026-10-01. Published figures, not quotes; yours will differ.
Your walls
| Item | Published range |
|---|---|
| Interior drain and sump system (per linear foot) | $70 to $150 |
What the quote should say
- Which walls the drain runs along, and the linear feet
- Whether a new sump pit is built or an existing one is used
- The pit size (at least 750 mm deep and 0.25 m², airtight child-resistant cover)
- Where the pump discharges
- Who pulls the permit for the pit and pump
- Whether a licensed plumber does or signs off the plumbing part
Permits
The City of Ottawa says a building permit is required to install protective plumbing devices, which include a sump pit and pump. Whether the drain channel itself counts as "drain tile replacement" on the City's permit list is not stated, so ask the City before the work starts.
City rebate
The City's protective plumbing rebate covers the sump pump with battery backup, not the drain channel: see the sump pump cost page for the City's table and its conditions.
Waterproofing IQ answers on this job
- Price per foot for an interior drain and sump system in Orleans?
- How do I compare two interior drain quotes for my Barrhaven basement?
- Does a finished basement raise the cost of an interior drain in Orleans?
- Who should I hire for an interior drain in Westboro?
- Is a sump pump part of every interior drain system in Ottawa?
Quick answers
Are the pit and pump in the per-foot price?
Ask each quote to show the pit and pump as their own lines; their published ranges are on the sump pump cost page.
Does an interior drain need a permit?
The sump pit and pump do: the City says installing protective plumbing devices needs a building permit. For the drain channel itself, ask the City.
Want this done at your place?
Tell us where the water is getting in and we'll send it to local Ottawa waterproofing contractors, who reply by email. We send it out to local contractors for you. Free, no pressure.