Getting in
How to become a concrete flatwork contractor in Ontario
Flatwork is learned chasing pours: concrete sets on its own schedule, and the crew that can place, screed, and finish before it does is the asset. From labourer to finisher to running your own crew is a few seasons for the committed.
Concrete Flatwork at a glance
- Licence to do the work
- Not required — 244G/ACI voluntary
- Path in
- On a finishing crew — chasing pours teaches the trade
- Regulated by
- Municipality; ACI certification for commercial
- Insurance baseline
- $2M CGL with completed-operations
- Union route
- OPCMIA on ICI work
The path, step by step
- 1
Join a finishing crew
Placing and finishing crews hire seasonally. You will learn screeding, floating, edging, and brooming by doing them under time pressure.
- 2
Learn base prep and weather
Most flatwork failures are subgrade and curing failures. Compaction, forms, reinforcement placement, and cold/hot-weather practice are the knowledge that separates contractors from finishers.
- 3
Certify if you want commercial
ACI Flatwork Finisher certification and the voluntary 244G open commercial and municipal work where certifications are specified.
Full guide: 244G Concrete Finisher
The real picture
Flatwork is the production end of concrete — driveways, slabs, garage pads — and the questions are about the grind and the business: the brutal early-morning, weather-ruled schedule, why you live or die on the ready-mix truck and the base prep, builder-volume vs decorative-margin, and how to make money when everyone competes on price per square foot.
What you'll actually make
From day one to the top of the trade. Ontario figures, approximate and worth verifying against current rates.
Labourer
$18–24/hrPlacing, raking, pulling forms.
Finisher
$28–40/hrThe skill — placing and finishing before it sets.
Crew lead / foreman
MoreFlatwork business owner
$80k–200k+Volume- and weather-dependent; builder relationships drive it.
Which lane is right for you
Residential vs commercial flatwork
Residential
Driveways, garage pads, sidewalks, and patios for builders and homeowners — high-volume, price-competitive, the easy own-a-business path.
Best for: People who want the accessible entry.
Commercial / ICI flatwork
Floor slabs, warehouse floors, and larger pours — ACI certifications, tighter tolerances, bigger equipment (laser screeds, ride-on trowels), higher pay.
Pay: Higher.
Best for: Crews ready for spec work and equipment.
Getting in
On a finishing crew, chasing pours — concrete sets on its own schedule, and the crew that can place, screed, and finish before it does is the asset. You learn screeding, floating, edging, and brooming under time pressure. The 244G certificate is voluntary; the real skill is judgment — reading the slab and the weather. ACI Flatwork Finisher certification opens commercial work.
Where it leads (and the way out)
Add decorative/polished as the higher-margin line (the classic escape from flatwork price competition), move into commercial/ICI flooring with the equipment and certifications, or grow crews and run the business. Foreman, estimator, and ACI-inspection roles get you off the trowel as the early mornings and the body toll add up.
Where the real conversations are
The communities, official bodies, and wage data tradespeople actually use.
Go to the source
The official pages that govern this trade. Bookmark these, they are the final word on requirements and fees.
- Skilled Trades OntarioTrade certifications, apprenticeship standards, and C of Q exams
- Start an apprenticeship (ontario.ca)How to register an apprenticeship in Ontario
- WSIBMandatory workplace insurance registration and clearance certificates
- CRA: Business RegistrationBusiness Number, HST/GST, payroll, and corporate tax accounts