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Best Plumbers in Oshawa, ON
15 resultsLooking for the best plumbers in Oshawa, ON? Here are 15 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.
Best Plumbers in nearby cities:Ajax 7Pickering 7Whitby 6Port Perry 3Uxbridge 1Courtice 1Clarington 1Brock 1Ajax, ON 1
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Frequently asked questions
What are the best plumbers in Oshawa, ON?
Based on customer ratings and reviews on Lokaldex, the top plumbers in Oshawa, ON right now are Hayes Plumbing, Throne Plumbing & Gas Ltd and Mutual Mechanical.
How many plumbers are there in Oshawa, ON?
Lokaldex lists 15 plumbers in Oshawa, ON.
How are the best plumbers in Oshawa, 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 Oshawa, ON, you can list it free or claim your existing listing to add your hours, services, photos and website.