Your proud masonry supplier for 125 years

Bringing passion, expertise, and the highest-quality masonry materials to commercial builders, architects, and homeowners alike. So you can mark every milestone.

of Ottawa’s projects choose Merkley Supply

0 %

in our delivery fleet

0 trucks

Merkleys on board

projects completed

5000 +

Ottawa & Gatineau masonry that stands the test of time

From the city’s newest highrise to your family’s fireplace. From planning to delivery. We’re here to help your next project last for generations.

Our history

Merkley milestones

1900–1918

Open for business

Merkley brothers Alexander, Duncan, and William opened shop in Casselman in 1900, supplying sawn lumber, ancillary materials, and bricks to projects in rural Ontario and western Quebec.

1918–1958

Building Ottawa, brick by brick

Between 1922 and 1924, we supplied masonry materials for Ottawa landmarks like Glebe Collegiate and the Civic Hospital. Our iconic “Rideau red” bricks also shaped homes and businesses in up-and-coming Ottawa neighbourhoods, including Centretown, Hintonburg, and Sandy Hill.

1958–1982

A new generation

In 1958, Alexander’s son, Douglas Cameron, took over the family business — and moved the brickyard to the edge of Lebreton Flats. Here, we distributed masonry, stone, tools, adhesives, mortar, and cement to projects around the entire city. (From Nepean to Gloucester!)

1982–today

A lifetime of achievement

Robert Merkley took the helm of Merkley Supply in 1982. He’s the heart behind our MSL Trade Show and helped raise $1.5M for Ottawa Hospital. In 2024, Robert was honoured with a Best Ottawa Business Lifetime Achievement Award for his community and business contributions.