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Commercial Water Softeners

A leader in the plumbing industry we have both service and construction plumbers ready to assist in any problem or project. Faucet repairs to Water Treatment we have the solution.

Worker working on Commercial Boiler

Our Heating and Air Conditioning are experts in furnace and A/C installations and repairs. Boiler, tankless water heaters and HRV/ERV and more!

Worker working on pot light install

Our Electricians are experienced with panel changes, lighting upgrades, pump controls and knob and tube replacements. Big or small we have you covered.


Cornerstone Trade Solutions is a multi-trade service and construction company focusing on customer service, clear communication and quality work. Originally Cornerstone Plumbing Solutions Inc. We have recently changed our name to match our new company services. 

Founded in 2009, Cornerstone has grown and developed into a medium sized company specializing in residential, commercial and high-rise applications. 

Working with many skilled partners, including our sister company Speed River Contracting Inc. We are able to offer an amazing array of products and services.

Fully equipped for any situation, 3 trades are only a phone call away.

Company picture, including staff and trucks

Friends of Cornerstone

Friends of CTS

Celebrating 13 Years

Locally Owned Since



Heating and Air Conditioning





Head Office

For any inquiries, please call: 519-993-0494 or fill out the following form to book a call.

400 Elizabeth St Unit A-B

Guelph, Ontario.

N1E 2Y1

Tel: 519-993-0494

Fax: 1-800-756-5035


Please email resumes with cover letter to

Call Our Friendly Staff Today!

Guelph 519-993-0494
K/W Cambridge 1-800-756-5035

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