We Specialize

We're dedicated to providing clean, safe water

Welcome to our website.

Our family owned and operated business has served our valued customers in Wellesley Township, Waterloo Region and surrounding area since 1980. We service residential, commercial, industrial and agricultural customers. We look forward to taking care of your plumbing and pump needs. 


Our Mission

Our family owned company's mission since 1980 is to

serve our valued customers

in a timely manner with professional plumbing expertise, honesty

and integrity. 


  • Water filtration 
  • Water softeners
  • Drinking water systems
  • Iron removal
  • Well pumps
  • Well upgrades
  • Backflow prevention 
  • Plumbing repairs
  • Camera inspection


Welcome our new division...

We are happy to announce that as of April 30, 2021, Graham Water Systems is now a division of Dietrich Plumbing and Pump. Previously owned and operated by Bob Graham, our shared missions, values, and commitment to serve the Region of Waterloo made the transition smooth and seamless. We are happy that Bob is continuing to work with us. He has over 25 years of experience as a Water Systems Technician and brings both expertise and a strong work ethic to Dietrich Plumbing.

     With the acquisition of Graham Water Systems, our customers can continue to rely on Dietrich Plumbing for one stop shopping for any and all water related concerns you may face. Check our updated list of services to see what our new division allows us to do for you!


We're taking precautions onsite to help minimize the risk of spread of covid-19. More details when you call 519-699-4605.