Are you aware that you have to report those payments to the CRA?
T5018 slips must be filed within 6 month of your year end or a calendar year end.
Must report if construction is your primary source of income. >50%
Failure to comply: If you fail to file a T5018 information return, the penalty for each failure is $25 a day, with a minimum penalty of $100 up to a maximum of $2,500.
Construction activities are conveniently listed on CRA website in an alphabetical order : https://www.canada.ca/en/revenue-agency/services/tax/businesses/contract-payment-reporting-system-cprs/information-payers-t5018.html
Some examples are: Air conditioning work, Asphalt paving, Drywalling, Fencing, Carpentry, Electrical work, Plumbing, Tile work, Roofing and Shingling, Plastering and Stucco...