Short answer
Broom finish is the lowest-cost, slip-resistant standard. Exposed aggregate adds a natural stone texture with good traction at a higher cost. Stamped and coloured concrete offers the most design choice but needs the most sealing and care. Smooth trowel finishes are generally unsuitable outdoors because they are slippery when wet.
Last updated October 2, 2026
Side-by-side comparison
| Finish | Look | Traction | Winter care | Repair | Relative cost |
|---|---|---|---|---|---|
| Broom | Plain, fine ridges | Good | Seal and limit salt | Easy to blend | Lowest |
| Exposed aggregate | Natural stones | Very good | Seal; avoid metal shovels | Patches may show | Medium to higher |
| Stamped | Pattern and colour | Fair to good | Re-seal periodically | Hard to match | Higher |
| Coloured broom | Plain with colour | Good | Seal | Moderate | Low to medium |
| Smooth trowel | Glossy flat | Poor when wet | Not recommended outdoors | Easy | Low |
Relative cost is a general guide. The Ontario price guide used elsewhere on this site (HomeStars, August 2026, Ottawa-based) lists basic slabs at about $3.80 to $5 per square foot, patios at about $10 to $30 and stamped concrete at about $12 to $30. These are estimates, not London quotes.
Broom finish
A broom is drawn across the surface to leave fine ridges. It is the standard for driveways, walks and steps because it is slip resistant, simple and easy to repair. The look is plain but it hides dirt reasonably well, and it is the most forgiving finish for contractors and for your budget.
Exposed aggregate
The surface paste is removed to reveal the stones in the mix. It offers strong traction and a natural look and hides small stains, but it is more expensive and more porous, so sealing matters. See exposed aggregate concrete.
Stamped and coloured concrete
Mats press a pattern into the wet surface and colour is added to imitate stone, slate or brick. It offers the most design flexibility, but it costs more, needs periodic re-sealing and can be slippery when wet if finished with a glossy sealer. See stamped concrete.
Choosing by project
| Project | Common choice | Why |
|---|---|---|
| Driveway | Broom, or exposed aggregate as an upgrade | Traction, durability and cost balance. |
| Backyard patio | Broom, coloured broom or stamped | Depends on how decorative you want it. |
| Pool deck | Exposed aggregate or textured stamped | Slip resistance and cooler surface. |
| Front walkway and steps | Broom | Safety and traction. |
| Garage or shed slab | Light broom or smooth trowel indoors | Function and cleaning. |
Whatever you choose, the base, drainage, air entrainment and sealing matter more to durability than the finish. See the salt and frost damage guide and the cost guide.
Frequently asked questions
What is the best finish for a driveway in Ontario?
Broom finish is the common standard for traction and cost. Exposed aggregate is a popular upgrade. The best choice depends on budget and appearance.
Is stamped concrete more expensive than exposed aggregate?
Often yes, but it depends on the pattern and colour work. Ask for finish prices as separate line items.
Which finish is least slippery?
Exposed aggregate and broom finishes generally give good traction. Smooth and glossy finishes can be slippery when wet.
Which finish is easiest to repair?
Broom finish, because patches blend more easily. Stamped patterns are the hardest to match.
Do all finishes need sealing?
Sealing is generally recommended for all exterior finishes in Ontario, especially stamped and exposed aggregate.
Can I add colour to any finish?
Colour can be added to most finishes through integral colour, hardener or stain. Ask what will wear well.