Canada Online

Top 10 Best Plumbers in Oshawa, ON

Updated July 21, 2026

Looking for a dependable Plumber in Oshawa, ON? Our July 2026 ranking highlights Oshawa's 10 best local Plumbers, selected for verified ratings, consistent service quality, and community reputation. Each listing includes up-to-date contact details, business hours, and reviews — helping you find trusted professionals.

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Frequently Asked Questions — Plumbers in Oshawa, ON

How much does a plumber cost in Oshawa, ON?
Most plumbers in Oshawa, ON charge between $100 and $180 per hour, depending on the type of work and time of day. Emergency services or after-hours calls may cost more, while simple fixes are usually offered at a flat rate.

Do plumbers in Oshawa, ON offer 24/7 emergency service?
Yes, many local plumbing companies provide 24/7 emergency repairs. On this page, you’ll find plumbers clearly marked with 24/7 Service badges — ideal for leaks, burst pipes, or flooding.

Are these plumbing companies licensed and insured?
All featured plumbers are licensed and insured professionals operating in Ontario. Licensing ensures they meet safety codes and provincial regulations.

How was this Top 10 list created?
Our ranking is built through a multi-step review and scoring process developed by the editorial team at Canada Online. Each business featured here has been carefully verified and evaluated using over 30 independent data points, combining both public and proprietary sources.

We analyze factors such as Google and customer ratings, number and quality of reviews, business completeness (NAP accuracy, photos, website, working hours), and recent user engagement. We also consider responsiveness, service consistency, complaint history, and community reputation across local platforms.

Every listing is manually checked by our editorial staff to confirm that business details are accurate and up-to-date. Our internal algorithm then calculates an overall trust score, which determines each company's position within the Top 10.

The rankings are reviewed and updated quarterly to reflect new reviews, reputation changes, and service quality improvements — ensuring you always see current, trustworthy results for your area.

Can I add my plumbing business to this list?
Yes — if you run a plumbing company in Oshawa, ON, you can claim or add your business via our Add Company form. Verified, accurate profiles are eligible for future updates.