Plumbing Now
“Plumbing Now is an amazing company that really cares about its customers and takes the time to explain things thoroughly.”
Best Plumbers in Ottawa, ON
23 contractors listed · all 23 in Ottawa · 10 open 24/7 · 16 open weekends · all 23 rated 4.5+
Data verified October 18, 2026
The Irish Plumber
“Fixed our issue, provided ideas on resolving a bigger issue, cleaned up, and patiently answered all of my wife's questions.”
Braden Foundation Construction
“I would definitely hire them again, it was a very good experience .”
Pentech Plumbing & Rooter LTD
“Sam is knowledgeable, trustworthy and thorough, and patiently answered all my questions.”
Anchor Home Comfort
“If I had my choice I would never have anyone else do our work.”
Offset Plumbing
“Julian was so professional and friendly when responding to our after hours call that we decided to ask for him to come back to take care of some elective work around the house.”
Listed for homeowners in and around Ottawa, ON, these 23 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: Ottawa, ON
All 23 contractors we list here are in Ottawa itself. We have 34 contractors in Ottawa on file; this page shows the highest-rated 23. The contractors on this page are rated from 4.5 to 5.0 across 5,785 reviews; 8 have 50 or more reviews. When customers rate these contractors on specific qualities, they most often praise professionalism (92%), quality (81%) and responsiveness (80%). The topics that come up most in reviews of the contractors on this page are "price" and "efficient". 10 are open around the clock; 15 are open on Saturdays and 12 on Sundays. The services the contractors on this page list most often on their websites are drain cleaning (3), basement renovations (2) and plumbing services (2). 6 show a licence on their websites. 7 have ten or more years of experience, the longest 15 years. 10 offer emergency call-outs; 2 offer financing or payment plans; 13 give free estimates; 1 is family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 23 of the contractors on this page; 20 publish a contact page; 19 list a public email and 3 take bookings online. We count these figures across the contractors on this page; hours and prices change, so confirm the details with the contractor before you book.
Which plumbers listed for Ottawa take calls at night?
Cover at any hour is claimed by 10 of the 23 plumbing listings here. Before paying a night rate, shut the main off and see whether the trouble stops. If it does, book for normal hours and get the same repair for less. Confirm the after-hours rate on the phone.
John the Plumber
“Darius was very professional and explained the required work and different options I could choose from along with the pros and cons of each choice.”
Ready Home Maintenance
“Johnny has assisted me with two home projects thus far and I have been completely impressed with his timeliness, professionalism and quality of work.”
KG Plumbing Ottawa
“KG plumbing did a great job replacing our drainage for our kitchen.”
Comfortway Plumbing
“The communication was great and I cannot wait to refer him to family and friends.”
Penta Plumbing Ltd.
“Amazing Customer Service from the first phone call, to arranging the work to be done, and to it being professionally completed by Nathan.”
Tourangeau Mechanical
“Scott and his team are who we refer to our realtors and home owners whenever a plumbing need arises.”
Pennex Backflow Prevention & Plumbing
“Thx Pennex, Scott, Jason great guys and everyone in the office are local, friendly and very helpful.”
PSL Mechanical Heating and Air Conditioning INC
“They were always conscious of any messes the job caused and took measures to ensure the mess was contained and cleaned up afterwards.”
Drain-Away Inc
“One of the hardest working plumbers in the city who will go above and beyond for his customers.”
CP & Son General Contractors
“They go above and beyond to make sure the client is taken care of.”
Pipes Plumbing
“These guys have reasonable pricing and the work they do is great!”
Ottawa Drain Cleaning
“We had completely blocked pipes and it took them some time, but they found the blockages and cleaned all of them out.”
808 Foundation Repair & Waterproofing Specialists
“And the when we had a minor leak they were kind enough to provide guidance and support on several occasions.”
Diamond Plumbing
“I have used Diamond Plumbing for several repairs to my rental property, as well as my own home, and have always been impressed with Damion's responsiveness and professionalism.”
Canada Plumbing Inc
“It is really rare these days to find an outfit that truly has the customer in mind.”
H.i.m Construction Inc.
“On multiple occasions, they chose to revisit and rework elements, not because they had to, but because they share an innate drive for perfection.”
MDK Renovations
“Really happy with the renovations that Matt of MDK did, converted our outdated bathroom into a modern space that I actually want to use.”
Why these companies made our list
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