# Ontario vendor compliance checklist

Updated 2026-10-03.

Check this before a trade's first job and again every time a document is due to expire. A trade with no current document does not get booked.

## Every trade, every job

- WSIB clearance certificate, current on the day of the work, where WSIB coverage applies to the trade's work.
- Certificate of liability insurance, naming Roundhouse as additional insured where required.
- A record of the document's expiry date, checked before renewal.

## Electricians

We only use ECRA/ESA-Licensed Electrical Contractors. Confirm the ESA licence number and its status on the public register, and that each electrician holds a 309A or 309C Certificate of Qualification or is a registered apprentice working under one.

## Gas and HVAC technicians

Confirm TSSA registration for the contracting business, and the individual technician's gas certification. For A/C and heat pumps, confirm a 313A or 313D certificate and the ozone depletion prevention (ODP) card.

## Plumbers and drain contractors

Plumbing: a Certificate of Qualification as a Plumber (306A), or a registered apprentice working under one, everywhere in Ontario; plus the City's Plumbing Contractor licence in Toronto. Drains: confirm the drain contractor's licence for the municipality the work is in.

## General repairs

Repairs that cross into plumbing, electrical or gas work go to the trade certified for it.

## Pest control technicians

Confirm the structural exterminator's licence issued under the Pesticides Act, and the licence class matches the work being done.

## Roofers and anyone working at heights

Confirm working at heights training that meets Ontario Regulation 297/13, and that it has not expired.

## Renewal tracking

- Note the expiry date beside each document.
- Flag anything expiring within 14 days.
- Do not schedule work past a document's expiry date without a renewed copy on file.

To track clearance expiry dates, use the [WSIB clearance tracker](https://roundhousegroup.ca/tools/wsib-clearance-tracker/).

## Sources

- [WSIB, clearances](https://www.wsib.ca/en/businesses/premiums-and-payment/clearances)
- [TSSA, contractor registration and certification](https://www.tssa.org/contractor-registration-and-certification)
- [Electrical Safety Authority, where can I find a Licensed Electrical Contractor](https://esasafe.com/hiring-an-electrician-or-contractor/where-can-i-find-a-licensed-electrical-contractor/)
- [Ontario, guide to pesticide licensing](https://www.ontario.ca/page/guide-pesticide-licensing)
- [O. Reg. 876/21 under the Building Opportunities in the Skilled Trades Act, 2021, section 2, compulsory trades](https://www.ontario.ca/laws/regulation/r21876)
- [Skilled Trades Ontario, trades information](https://www.skilledtradesontario.ca/about-trades/trades-information/)
- [Ontario, get a certificate to handle refrigerants](https://www.ontario.ca/page/certificate-handle-refrigerants)
- [Ontario Regulation 297/13, occupational health and safety, working at heights](https://www.ontario.ca/laws/regulation/130297)