Representing Manufacturers of Septic Tanks & Underground Precast Structures

- Established in 1991, the Concrete Precasters Association of Ontario has worked to create and strengthen relationships between our members, in an effort to better our industry and provide a unified voice for the independent manufacturers of septic tanks and other concrete products.

- Our annual conference provides a forum for discussion on current issues affecting our industry, educational seminars on industry topics, and an opportunity to get away from the flurry of day to day business and “talk shop” with like-minded business owners and suppliers.

- Technical, Safety and Marketing committees provide members with tools to take “back to the shop”, to help keep their businesses up to speed and up to code.

- Training courses and workshops keep member’s employees safe and knowledgeable.

- The CPA provides a valuable forum for supplier members to engage directly with owners and decision makers.

Learn more about our history  

What's In The Mix

Mel C. Marshall Memorial Scholarship - Now Accepting Applications 


We are pleased to announce that the Mel C. Marshall Memorial Scholarship is now accepting applications. The CPA invites you to view This Brochure to learn more about Mel C. Marshall and the impact he had and continues to have on the Precast Industry. Apply using this package. 

     We have merch!




Have you seen our t-shirts? What is stronger than a moose, harder than a slapshot, and tighter than a beavers a**? Email info@cpaontario.com to find out and order your shirts today! T-shirts are $25 each. Customization with your company name is available.





 Fall Newsletter is here!

Manufacturer members & Locations

Unit Precast Concrete Products

Breslau, ON

Acton Precast Concrete Ltd.

Acton, ON

Porters Infrastructure Products Inc.

Dresden, ON

Boyd Brothers Concrete Products

Osgoode, ON

Brooklin Concrete Products

Lindsay, ON

Carson Supply

Port Elgin, ON

Casselman Cement Ltd.

Casselman, ON

C. J. Pink Ltd.

Dorchester, ON

J. A. Porter Holdings (Lucknow) Ltd.

Lucknow, ON

MacGregor Concrete Products Limited

Beachburg, ON

Miller Precast Ltd

Rosslyn, ON

Moose Creek Precast Inc

Moose Creek, ON

Newmarket Precast Concrete Products Ltd.

Uxbridge, ON

Orangeville Precast Concrete Ltd.

Mono, ON

Planes Precast Concrete Limited.

Kingston, ON

Premier Precast Concrete Products

Trenton, ON

Rainbow Concrete Industries Ltd.

Sudbury, ON

Reid's Precast Cement Products Ltd.

Langton, ON

Roswell Concrete Products Limited.

Burford, ON

Trevor's Concrete Shop

Connaught, ON

Underground Specialties Inc.

Oldcastle, ON

W. D. Moody Concrete Ltd.

Lowbanks, ON

Wilkinson Heavy Precast Limited.

Dundas, ON

Winona Concrete & Pipe Products Limited.

Grimsby, ON

Wyevale Concrete Products Ltd.

Tiny, ON

A & B Precast Manufacturing Ltd.

Belleville, ON

Have a septic tank?

Concrete vs Plastic Septic Tanks

Product Registration Program