Plumbers in Oshawa, — 33 Local Contractors

There are 33 plumbers in Oshawa, . The average rating is 4.8 out of 5 stars across 30 rated businesses. The highest rated is Vaillancourt Plumbing & Drains (4.9 stars). The most reviewed is Vaillancourt Plumbing & Drains with 1392 reviews.

Oshawa homeowners and property owners looking for a plumber have several options to choose from. Local professionals typically offer pipe repair, drain cleaning, water heater installation, fixture replacements, and bathroom renovations. Before hiring, check for valid plumbing license, liability insurance, and references from recent jobs. Ontario's variable four-season climate can affect project timing and material choices, so local experience matters. Get multiple quotes and ask about warranties on parts and labour. Browse the listings below to compare ratings, read reviews, and contact plumbers directly.

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Frequently Asked Questions

How many plumbers are in Oshawa?
There are 33 plumbers listed in Oshawa, as of 2026.
What is the average rating?
The average Google rating for plumbers in Oshawa is 4.8 out of 5 stars.
How do I choose a plumber in Oshawa?
Compare ratings and review counts, verify their credentials and insurance, and get at least three quotes before hiring.