Mistake 1: starting too early
If pre-approval applies, starting installation before the right approval path can put the rebate at risk. The first check is always whether the work has started and what the official application process requires.
Most expensive rebate mistakes happen before installation: wrong program, wrong valve type, missing pre-approval, missing permit, weak contractor documentation, or no inspection paper trail.
Work-started status matters before rebate planning.
Contractor quote and invoice paperwork matter.
Program fit matters because Peel and Mississauga do not cover every measure the same way.
If pre-approval applies, starting installation before the right approval path can put the rebate at risk. The first check is always whether the work has started and what the official application process requires.
Peel's sanitary backwater valve path and Mississauga's basement flooding prevention rebate path answer different questions. The lateral type and measure type decide where the homeowner should look first.
A cheap or fast quote can become expensive if it lacks the proposed scope, licence or business details, permit support, itemized costs, final invoice detail, and inspection sign-off.
Starting installation before checking pre-approval, permit, and inspection requirements.
Assuming all backwater valves are handled by one rebate program.
Using a contractor quote that does not identify the measure, location, and cost breakdown.
Failing to keep final invoice, proof of payment, and inspection records after completion.
Before You Hire
If your request looks contractor-ready, we may introduce you to a rebate-aware contractor. We do not guarantee eligibility or rebate approval.