Price per foot for an interior drain and sump system in Orleans?

An interior drain and sump system runs about $70 to $150 per linear foot of wall in published Ontario contractor pricing, with figures on some pages ranging from $50 to $230. The wall length drives any quote, and the price also shifts depending on whether a new sump pit is being constructed or an existing one used, whether battery backup is included, and how much of the basement interior is finished and needs to come apart.

A few things to nail down before comparing quotes:

• Scope by wall: ask which walls are included and get the linear footage written out, not just a lump sum.
• Sump pit and pump: ask whether the quote covers a new pit or assumes one already exists, and whether a battery backup pump is included. Published 2025-26 prices for a replacement pump in an existing pit run about $500 to $1,200; a new pit adds about $500 to $1,500; a pump with battery backup runs about $2,000 to $4,000.
• Discharge: ask where the sump will discharge and whether that connection is in the quote.
• Permit: the City of Ottawa says a building permit is required to install a sump pit and pump as protective plumbing. Ask which contractor pulls it and confirm it is included in the price.
• Plumbing sign-off: plumber is a compulsory trade in Ontario, so ask whether a licensed plumber does or signs off the plumbing portion of the work.

On the rebate side, the City's Residential Protective Plumbing Program lists a maximum of $1,500 for a primary or secondary sump pump with battery backup in an existing pit, or $3,000 where a new pit is also constructed. The City rebates the lesser of that maximum or the actual cost of the work, the application must be received within 18 months of the permit's issue date (the City changed this from 12 months on July 1, 2026), and the program is listed as currently under review, so check ottawa.ca before counting on it. Rebates are not available for maintenance, repair or replacement of an existing device, so if there is already a pump in the pit, ask the City whether your job qualifies.

The form on this page can forward your details to contractors listed in the Ottawa Construction Network directory.

Before you sign, ask the contractor to write the wall length and the sump details as separate lines, so two quotes can be compared item by item.