Cornwall Gravel Co. Ltd · family owned since 1949

From the rock face
to the finished road.

Aggregate, ready-mix concrete, asphalt — and the crew that places them. Ten quarries and 230 people across Eastern Ontario, all on one phone number.

76
years in
the ground
10
quarries &
pits
230+
people on
the payroll
500K+
hours, no
lost time
  • COR™ Certified
  • Class A Licensed Quarries
  • OSSGA Member
  • ORBA Safety Award
  • OPSS Specification Aggregate
  • In-House Materials Lab

What we do

Most contractors buy from four suppliers. You could buy from one.

Aggregate, concrete, asphalt, trucking, equipment and the crew to install it — all under one roof, all scheduled by one office. Fewer handoffs, fewer delays, one number to call when something changes on site.

All services and products

Rock face to finished road

Five suppliers, or one company that owns every step.

Most of what goes wrong on a job happens in the gaps between trades — the load that did not show, the mix that was not ready, the crew waiting on gravel. We own all five steps, so there are no gaps to fall into.

Price the whole chain
  1. Ten quarries and pits across Eastern Ontario, and we do our own drilling and blasting. The stone in your base course came off a face we own.

    Owned: 10 sites · Class A licences

Aggregates

We do our own drilling and crushing.

That is the whole difference. The stone in your base course came out of our rock face, through our crusher, across our scale and onto our truck — and it was tested in our own lab on the way.

Granular A, Granular B, clear stone, screenings, concrete and mason sand, rip rap and armour stone, all to Ontario OPSS specification. If you need a number before you call, the calculator will get you within a load.

Quick estimate

A 30 m × 6 m driveway at 150 mm of Granular A:

Approximate tonnage 68.3tonnes
Volume27.0 m³
Compaction allowance+15%
Tri-axle loads4

Change the dimensions, pick any of our fourteen products, and send the result straight to an estimator.

Estimate your own job

The network

Ten quarries means the stone starts closer to your site.

Haulage is the part of an aggregate bill nobody talks about. Our pits run from Greely down to the St. Lawrence and east to the Quebec line — so the material you order usually loads within half an hour of where it is going.

10Active quarries & pits
Class AAggregate Resources Act licence
UnlimitedAnnual tonnage at Greely
In-houseMaterials testing lab
Explore the quarry map

Since 1949

Ivan Grant built the crusher himself.

He had three employees and one idea: if you are going to sell stone, you should be the one who makes it.

Seventy-six years later there are more than two hundred and thirty of us, and the third generation of Grants still runs the place — David as President, Peter as Vice President, Cathy as Secretary-Treasurer. The fourth generation is already on the payroll.

It is the reason we answer the phone the way we do. When a company stays in one family and one river valley for four generations, its reputation is not a marketing asset. It is the family name.

Safety

Half a million hours without a lost-time injury.

Every person who goes out on a Cornwall Gravel crew comes home. That is not a slogan — it is an audited number, and it is why municipalities are comfortable putting our crews on their roads.

Associations & certifications

Selected work

The pipe under your street, probably.

We have installed new waterlines and sewers for Brockville, Prescott and Ottawa, and paved for the province. Municipal work is the backbone of this company.

Need a number by Friday?

Tell us the job in about ninety seconds and an estimator will come back to you within one business day. Or just call — someone here will pick up.

Request a Quote 613-932-6571