Custom Plumbing
“I've called them several times over the last 5 years and been very good to me.”
Best Plumbers in Sarnia, ON
10 contractors listed · 4 in Sarnia · 2 open weekends · 8 rated 4.5+ · 2 show a licence
Data verified October 19, 2026
Rb Plumbing
Pete's Plumbing
“Easy to talk to and caring people”
Ghost Plumbing
“Thank you, to Ghost Plumbing, for fixing our wash tub, washing machine drainage, kitchen sink and replacing our old toilet, with a new (taller) toilet.”
Plympton Plumbing
“I had a plumbing issue and called Plympton Plumbing and they had someone at my house within two business days.”
Bluewater Plumbing
“Bluewater Plumbing was the first company to alert us to the presence of roots and dirt in our pipe and offer an appropriate and PERMANENT solution!”
Listed for homeowners in and around Sarnia, ON, these 10 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: Sarnia, ON
4 of the 10 contractors we list are based in Sarnia; the other 6 serve Sarnia from towns including Point Edward (8 km), Petrolia (11 km) and Wyoming (15 km). The contractors on this page are rated from 4.0 to 5.0 across 291 reviews; 2 have 50 or more reviews and 8 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (84%), responsiveness (82%) and quality (68%). 2 are open on Saturdays. 2 show a licence on their websites. 1 offers emergency call-outs; 1 gives free estimates and 2 are family- or locally-owned. We have a website on file for 5 of the contractors on this page; 5 publish a contact page and 2 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 Sarnia?
Sarnia is the base for 4 of the 10 listings here; the rest come from other towns within 45 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.
Jack and Sons Sewer Cleaning
“They helped clean up water so it didn't get all over my basement.”
J.R. Plumbing Plus Inc.
“Plumbing Plus,all workers were courteous,thoughtful and hardworking,thankyou all for doing a great job!”
Bob Magee Plumbing
“Had them in stall a very large sink into a custom counter and also a brand new bathroom sink.”
Paramount Plumbing Ltd.
“Definitely definitely, recommend this company went above and beyond and out of its way to help someone he didn't even know recommend.”
Why these companies made our list
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