Five finishes. Most driveways need one of two.
Broom finish and exposed aggregate cover the vast majority of heated driveways in Ontario. They're grippy, they age well, and they don't ask much from you. Stamped concrete is a real option for flat surfaces if you're willing to maintain it. Smooth troweled is not an outdoor finish. We'll be direct about all of it.
Broom Finish
A stiff brush dragged across wet concrete leaves parallel ridges that grip your boots even when the surface is wet. It looks plain. That's not a flaw. For a heated driveway in Ontario, where the system cycles on and off through a cold snap and meltwater sits on the surface, this finish does its job without asking for anything in return. Most driveways should use this.
Best For:
- Any driveway with a slope
- Steps and walkways where a fall would be serious
- Anyone who wants to forget about maintenance
Watch-Outs:
- It looks like concrete, because it is concrete
- Grooves collect fine grit over time — a stiff brush clears it
"Coarse and confident. Like a dry sidewalk, even when it's wet. Your boots don't slip."
Exposed Aggregate
Before the surface fully cures, the top layer of cement paste gets washed away. What's left is the stone aggregate — pebbles and chips pressed into the slab, each one a small grip point. The surface looks like a river bed pressed flat. It handles thermal cycling well because the texture distributes stress across hundreds of contact points rather than one continuous plane. A good middle ground, honestly.
Best For:
- Flat or gently sloped driveways where curb appeal matters
- Homeowners who want better than broom without the upkeep of stamped
- Patios and pool surrounds where bare feet are common
Watch-Outs:
- Needs a penetrating sealer every 3-5 years to stay protected
- Too rough for bare feet on a pool deck — use salt finish there instead
"Textured and firm, like walking on packed gravel. Confident grip in rain or melt."
Stamped Concrete
Metal stamps pressed into wet concrete create patterns that mimic stone, slate, or brick. Done well, it looks genuinely impressive. The honest trade-off: stamped concrete on a heated driveway is more demanding than most installers admit. The pattern grooves trap meltwater. When the system shuts off overnight, that water refreezes in the grooves. A texture additive in the sealer isn't optional here. Avoid it on any slope steeper than a gentle grade.
Best For:
- Flat front entrances and patios
- Homeowners who will commit to resealing every 2-3 years
- New builds where drainage is planned from the start
Watch-Outs:
- Slippery when wet without a texture additive in the sealer
- Resealing every 2-3 years is not optional — it's what keeps the color and the protection
- Deep pattern grooves trap standing water and ice
- Harder to access heating elements if a repair is ever needed
"Smooth and decorative. Looks like stone. Needs the texture additive or it's a slip hazard."
Smooth / Troweled
A steel trowel polishes the surface flat. It looks sharp in a garage or workshop. Outside, in Ontario winters, it's a genuine hazard. Meltwater from a heated slab has nowhere to go on a smooth surface. It pools, it films, and when the system cycles off, it freezes. We won't install this finish on any outdoor heated surface. If you want a clean, modern look outside, exposed aggregate gets you there without the danger.
Best For:
- Garage floors
- Indoor utility spaces and workshops
Watch-Outs:
- Serious slip hazard when wet
- Not suitable for any outdoor heated surface
- Meltwater films across the surface with no texture to break it up
"Glassy smooth. Fine indoors. Outside in winter, it's ice waiting to happen."
WARNING:
We won't install this finish on outdoor heated surfaces. A wet heated slab with a smooth troweled surface is a fall waiting to happen. If you want a clean, modern look outside, exposed aggregate gets you there without the risk.
Salt Finish
Rock salt crystals are pressed into fresh concrete, then dissolved with water before the slab cures. The result is a subtle, dimpled texture with a natural, understated look. It works well on patios and pool decks where bare feet are common. It doesn't hold up under vehicle traffic, and the pits collect debris over time. Not a driveway finish.
Best For:
- Pool decks and decorative patios
- Low-traffic areas where the look matters more than durability
Watch-Outs:
- Pits collect grit, leaves, and debris over time
- Not suited for driveways or any surface with regular vehicle traffic
- Fewer contractors have experience with this finish
"Gently dimpled and soft underfoot. Comfortable on bare feet. Not grippy enough for a driveway."
Different surfaces, different priorities.
The finish that's right for a sloped driveway is not the same as what works on a backyard patio. Surface use, slope, and drainage all change the answer. Here's how we think about it.
Driveways
A driveway takes vehicle weight, tire scrub, and road salt tracked in from the street. The finish needs to grip in wet conditions and hold up to that abuse for decades. On any slope, traction is the only thing that matters. On a flat driveway, you have more options, but durability still comes before looks.
Best Finishes:
- Broom Finish
- Exposed Aggregate
Avoid:
- Smooth/Troweled (slip hazard when wet)
- Stamped on any slope steeper than a gentle grade
Walkways & Steps
Steps are where falls happen. A heated walkway melts the snow, but the surface is wet until it drains. That wet surface needs texture. Stamped concrete without a texture additive in the sealer is genuinely dangerous on steps. Smooth troweled is worse. The finish choice here isn't about aesthetics.
Best Finishes:
- Broom Finish
- Exposed Aggregate
Avoid:
- Smooth/Troweled
- Stamped without texture additive in sealer
Patios
A patio is where you have the most flexibility. Bare feet, outdoor furniture, and entertaining mean comfort matters alongside traction. Drainage still needs planning, especially on a heated patio where meltwater can pool near the house. Salt finish works well here. Stamped is a reasonable choice on a flat patio if you'll maintain it.
Best Finishes:
- Exposed Aggregate
- Stamped (flat surfaces only)
- Salt Finish
Avoid:
- Coarse broom finish (too rough on bare feet)
- Any smooth finish near steps or transitions
A heated slab isn't just a regular slab that gets warm.
It has specific requirements that a standard concrete job doesn't. The mix design changes. The joint spacing changes. The drainage planning changes. Most of this happens before the finish is even a conversation. Here's what's different, and why it matters.
Thermal Cycling
Every time the system turns on, the slab warms and expands. Every time it shuts off, it cools and contracts. In a cold Ontario winter, that can happen multiple times a day. Concrete that isn't designed for this movement will crack at the wrong places. Air-entrained mix and properly spaced control joints are what manage it.
Meltwater on the Surface
A heated slab melts snow, but the water doesn't disappear. It sits on the surface until it drains or evaporates. That means your finish is wet more often than a cold driveway ever would be. Traction matters more here, not less. A smooth finish that's fine when dry becomes a hazard when it's wet and the system cycles off.
Drainage Planning
Stamped concrete pattern grooves can hold standing water. When the system shuts off overnight and temperatures drop, that pooled water freezes in the grooves. The fix isn't complicated, but it has to be planned before the pour: slope, drainage channels, and finish choice all work together.
The Base Is Not Optional
The heating cable is the easy part of this job. The base is where most failures start. Wrong depth, poor compaction, or skipped gravel layer and the slab moves. When a heated slab moves, it cracks at the heating elements. Getting the base right costs more upfront and saves everything downstream.
Durability comes from the base and the mix. Not the finish.
Anyone who promises "crack-proof" concrete is lying. Concrete is a rigid material on a moving earth, and a heated slab moves more than most. Our job is to control where it cracks, plan for the thermal cycling, and build something that lasts decades. The finish is the last variable in that equation.
What Actually Matters
Base Preparation
Crushed stone at the right depth, mechanically compacted. A heated slab cycles through more temperature swings than a regular one, so the base needs to be stable. If it shifts, the slab cracks at the heating elements.
Air Entrainment
Heated concrete requires an air-entrained mix. Microscopic air bubbles are intentionally introduced into the concrete to give water somewhere to expand when it freezes. Without them, freeze-thaw cycles shatter the surface from the inside out.
Control Joints
Concrete cracks. That's not a defect, it's physics. Control joints are saw cuts or tooled grooves that tell the concrete where to crack. On a heated slab, joint spacing is tighter than standard because the thermal movement is greater.
Curing Time
Concrete needs 28 days to reach full strength. The heating system can't run until then. Rushing the cure by driving on it too early or turning the heat on too soon weakens the slab permanently. There's no fixing it after the fact.
Mix Design
A heated slab needs a lower water-to-cement ratio than standard residential concrete. More water makes the mix easier to work with and weaker when it cures. We specify the mix for the application, not for the convenience of the pour.
Sealer Strategy
The right sealer, applied after the concrete has fully cured, is what stands between your finish and road salt. The type of sealer depends on the finish. Stamped concrete needs a film-forming sealer with a texture additive. Exposed aggregate needs a penetrating sealer. Getting this wrong shortens the life of the finish.
What Matters Less Than You Think
- Claims about 'crack-proof' concrete — all concrete cracks eventually
- Finish type alone — a well-built broom finish outlasts a poorly built stamped job every time
- Color additives — they change the look, not the strength
"We'd rather you have a broom finish that lasts 30 years than a stamped job that spalls in 3. The finish is the last decision. The base is the first."
What actually drives the price.
The finish type is the most visible cost difference, but it's rarely the biggest one. Base preparation, mix specification, and joint work are where the real cost variation lives. Here's what we look at when we build a quote.
Finish Type
Broom finish ($) is the most cost-effective and the most forgiving. Exposed aggregate ($$) adds mid-range cost for better curb appeal. Stamped ($$$) is the most labor-intensive and the most expensive to maintain over time.
Base Preparation
This is often the biggest variable in a quote. Clay soil needs more excavation and more gravel than sandy soil. A site that drains poorly needs more work than one that doesn't. We assess this on the first visit.
Control Joints
Heated slabs need more control joints than standard concrete because the thermal movement is greater. More joints mean more labor. Skipping them to save money means cracks where you don't want them.
Concrete Mix Spec
Heated slabs require an air-entrained mix with a lower water-to-cement ratio than standard residential concrete. This mix costs more per yard. It's not optional.
Sealing & Long-Term Maintenance
Initial sealing is included in every job. After that, your finish choice determines the ongoing cost. Broom and exposed aggregate need resealing every 3-5 years. Stamped concrete needs it every 2-3 years, and skipping it shows.
We don't publish prices because every site is different. After a site visit, we give you a fixed-scope quote. No line items that appear later.
Not sure which finish fits? Answer four questions.
Four questions, honest answer. We'll tell you what we'd recommend for your surface and why.
Ready to talk about your driveway?
We'll look at your slope, your soil, and how you use the space. Then we'll tell you what finish we'd put there and what it'll cost. No pressure, no pattern book pushed at you before we've seen the site.
1. Site Visit
We come to your property, look at the slope, the soil, the drainage, and the existing electrical or mechanical setup. The finish conversation happens here, with your actual driveway in front of us.
2. Fixed-Scope Quote
You get a written quote with a clear scope. No line items that appear later. We'll tell you exactly what finish we're recommending and why, and what the alternatives would cost.
3. Installation
Concrete work takes days, not hours. Your driveway will be unusable during the pour and for at least a week after. We'll give you a realistic timeline before we start, not after.
Ready to get started?
Share a few details about your property to get a personalized recommendation and estimate.
No obligation. We bring physical samples to the site visit so you can see and feel the finishes before you decide.