Best Plumbers in Waterloo, ON

12 results

Looking for the best plumbers in Waterloo, ON? Here are 12 local businesses, ranked by ratings and reviews from real customers, then by how complete and up to date their details are. How we rank · Updated November 2026.

Has website Has phone Rated 4.5+

Frequently asked questions

What are the best plumbers in Waterloo, ON?

Based on customer ratings and reviews on Lokaldex, the top plumbers in Waterloo, ON right now are Mr. Rooter Plumbing of Waterloo ON, One Source Mechanical Inc and TRH Plumbing & Heating.

How many plumbers are there in Waterloo, ON?

Lokaldex lists 12 plumbers in Waterloo, ON.

How are the best plumbers in Waterloo, ON ranked?

Businesses are ranked by their average rating, weighted by how many reviews they have, then by how complete their details are (phone, website, hours). Businesses cannot pay to change their place in this list.

How can I add my business to this list?

If your business is in Waterloo, ON, you can list it free or claim your existing listing to add your hours, services, photos and website.