Best Plumbers in Oshawa

We have reviewed and ranked the best local plumbing companies in Oshawa

Vaillancourt Plumbing & Drains serves Oshawa, ON and the surrounding area. Ask its customers and you’ll hear about punctuality, professionalism, communication. It ranks among Canada’s Top 100 Plumbing Companies with an N49 Trust Score of 87.1/100. It ranks #1 in Google Maps local results for Oshawa. Read More

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Trust Score87.1/100

Based in Whitby, ON, 2 Bro's Plumbing has earned a strong local reputation. In its reviews, punctuality, communication, professionalism come up again and again. Our 10-factor review gives it an N49 Trust Score of 79.1/100. It ranks #1 in Google Maps local results for Whitby. Read More

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Trust Score79.1/100

The unglamorous essentials are the specialty at Call the Plumbing Doctor — clogged drains, hot water tanks, pipe thawing, backflow prevention, even septic and well work — across Oshawa, Ajax, Pickering and Whitby. Read More

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Trust Score78.1/100

Seventeen communities across Durham and the eastern GTA fall within Delta Plumber Ajax's range — residential and commercial plumbing, 24/7 emergency repairs, water heater installs. Read More

Why this 72.3/100 trust score — the facts behind each pointThe facts behind your trust score
Trust Score72.3/100

Burst pipes and unexpected leaks are the moments Marco Plumbing built its Whitby business around — calm, capable response across Durham from Ajax to Pickering. Read More

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Trust Score69.7/100

The name is the promise at Fast Lane Plumbing: fast, affordable work spanning drain cleaning, pipe replacement, sump pumps and water heaters across Durham Region. Read More

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Trust Score69.6/100

Caldwell Plumbing is an established plumbing name in Oshawa, ON. Customers most often highlight its workmanship, punctuality, fair pricing. It earns an N49 Trust Score of 66.5/100 in our independent review. 11 service-area landing pages on site (e.g. markham plumber, in ajax, in bowmanville, in courtice, in durham region). Read More

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Trust Score66.5/100

FR Plumbing serves Clarington, ON homeowners and businesses. Its reviews return to the same strengths — punctuality, communication, professionalism. Our 10-factor review gives it an N49 Trust Score of 64.7/100. Mentions 4 service areas on home page (e.g. ajax, oshawa, pickering, whitby). Read More

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Trust Score64.7/100

Fix Plumbing Ltd serves Ajax, ON and the surrounding area. Ask its customers and you’ll hear about professionalism, punctuality, workmanship. It carries an N49 Trust Score of 63/100 across our 10-factor review. It ranks #8 in Google Maps local results for Ajax. Read More

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Trust Score63/100

Delta Plumbers of whitby is a plumbing company serving Whitby, ON. Reviewers repeatedly call out its punctuality, professionalism, tidiness. It carries an N49 Trust Score of 61.4/100 across our 10-factor review. Mentions 17 service areas on site (e.g. ajax, aurora, burlington, delta, etobicoke). Read More

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Trust Score61.4/100

Based in Whitby, ON, RPG Regal plumbing group inc. has earned a strong local reputation. In its reviews, workmanship, professionalism, punctuality come up again and again. Our 10-factor review gives it an N49 Trust Score of 52.9/100. Read More

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Trust Score52.9/100

Mutual Mechanical serves Oshawa, ON and the surrounding area. Its work spans mechanical work and plumbing work for local homeowners. It carries an N49 Trust Score of 44.5/100 across our 10-factor review. Read More

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Trust Score44.5/100

Munro Plumbing Inc. is a well-regarded plumbing provider in Oshawa, ON. The team covers plumbing work across the area. Read More

4.9★ average rating
3,020 total reviews across the top 20
Curated by People + AI
Ranked by the N49 Trust Score and audited by our team. We examine a number of factors including reviews, multi-platform reputation, local brand visibility and online presence, not paid placement.