Best Plumbers in Oshawa, ON

15 contractors listed · 11 in Oshawa · 5 open 24/7 · 8 open weekends · 14 rated 4.5+

Data verified October 18, 2026

Call the Plumbing Doctor Inc. & Call the Foundation Doctor Inc.

Call the Plumbing Doctor Inc. & Call the Foundation Doctor Inc.

4.8 48 reviews
“Garrett came to fix the leak in my plumbing in the kitchen.”
Free estimatesInsured24/7 emergency serviceSince 1994Serves Ajax, Blackstock +10Family-owned
712 Wilson Rd S #16
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Vaillancourt Plumbing & Drains

Vaillancourt Plumbing & Drains

4.9 50 reviews
“They got back to me quick, I didn't have to wait long for an appointment, and our technician Shane was quick, worked clean and was really nice.”
Free estimates14-mo warranty24/7 emergency serviceServes Oshawa, Durham RegionFamily-owned
27 Warren Ave
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Throne Plumbing & Gas Ltd

Throne Plumbing & Gas Ltd

4.8 29 reviews
“Moreover, the entire process was hassle-free, and the pricing was fair and Throne Plumbing truly goes above and beyond to deliver top-notch service”
Since 2015
419 King St W
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Central Drain Service Inc.

Central Drain Service Inc.

5.0 24 reviews
“Needed shower faucets done in two bathrooms and Central Drain accommodated on short notice.”
Since 2011
700 Albert St
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Multi-Trade Building Services

Multi-Trade Building Services

5.0 6 reviews
“I was so impressed at the speed and ease of their work, which to me seemed like a huge job, but to them it was an easy fix.”
Serves Durham Region, ClaringtonLicensedSince 2011
291 Phillip Murray Ave
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CDN Plumbing

CDN Plumbing

5.0 2 reviews
“He has a great personality and is not only dependable but very trustworthy.”
Free estimatesSince 2010Serves Durham Region
1649 Sherbrook Dr
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Listed for homeowners in and around Oshawa, ON, these 15 companies cover plumbing work. Hours, licence claims and free estimate offers come from each company's own website. Ask about provincial workers compensation coverage too, since the work happens inside your home.

Area overview: Oshawa, ON

11 of the 15 contractors we list are based in Oshawa; the other 4 serve Oshawa from Whitby (8 km). The contractors on this page are rated from 4.0 to 5.0 across 3,989 reviews; 6 have 50 or more reviews and 14 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (90%), responsiveness (84%) and quality (79%). 5 are open around the clock; 8 are open on Saturdays and 7 on Sundays. 2 show a licence on their websites. Domain records put 5 websites of the contractors on this page at ten or more years old; the oldest dates from 2000. 5 offer emergency call-outs; 1 offers financing or payment plans; 5 give free estimates; 4 are family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 14 of the contractors on this page; 12 publish a contact page and 10 list a public email. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.

Why are some of these plumbers based outside Oshawa?

Oshawa is the base for 11 of the 15 listings here; the rest come from other towns within 25 km. Plumbers work across a service area, so a neighbouring base is normal. Ask how far they travel and whether the trip charge changes with distance.

Lundy Plumbing & Heating

Lundy Plumbing & Heating

Family-owned
330 Marwood Dr #8
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Renmar Services

Renmar Services

4.0 1 review
1300 King St E #27
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Mutual Mechanical

Mutual Mechanical

Serves Durham Region
869 Nelson St
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Fontaine Handy Man Service

Fontaine Handy Man Service

5.0 3 reviews
“Installed a toilet and kitchen Faucet.”
Free estimatesLicensedSince 2021
100 Taunton Rd E #73
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Ben Huston Plumbing & Piping Ltd

Ben Huston Plumbing & Piping Ltd

5.0 4 reviews
“I have used them many times and find them incredibly knowledgeable, honest and very reasonably priced.”
196 Arena St
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2 Bro's Plumbing

2 Bro's Plumbing

5.0 49 reviews
“The guys showed up when promised, came prepared for my unique situation, did a very professional job.”
Licensed & insured24/7 emergency serviceSatisfaction guaranteeSame-day responseSince 2015Serves Whitby, Oshawa +8
Whitby, ON · 8 km from Oshawa
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Plumbing & Heating Heroes

Plumbing & Heating Heroes

4.9 48 reviews
“I have delt with Camilo for years and find him to be reliable, trustworthy and hard working.”
Coupons & offersInsured24/7 emergency serviceResponds within 1 hourServes Greater Toronto Area, Toronto +2Since 2021
Whitby, ON · 8 km from Oshawa
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Limcan Certified Heating and Air Conditioning

Limcan Certified Heating and Air Conditioning

4.8 42 reviews
“He provided thorough, friendly service, and he did a great job of explaining the work he was performing and answering our questions.”
24/7 emergency serviceSince 1964
Whitby, ON · 8 km from Oshawa
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Kholo Plumbing

Kholo Plumbing

4.9 48 reviews
“Defenitely knows what he is doing and we will be using him again if needed.”
Free consultationInsured24/7 emergency serviceServes Durham Region, Pickering +4Since 2010
Whitby, ON · 8 km from Oshawa
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HomePlumbing ContractorsOntarioOshawa, ON

Why these companies made our list

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