Plumbers & Plumbing Companies in Ottawa

This guide compares 20 plumbers serving Ottawa. The featured shortlist includes B&W Plumbing (5.0 stars from 209 Google reviews), John The Plumber (4.8 stars from 2519 Google reviews), and The Irish Plumber (4.8 stars from 800 Google reviews).

Listings claimed by their owner appear first; all other positions follow the published rating methodology. 20 carry a sourced public rating, averaging 4.8 stars; the highest-rated is B&W Plumbing at 5.0 stars from 209 Google reviews.

When a pipe bursts in an Ottawa January, the best plumbers are licensed, insured, and on the way fast. Beyond emergencies, they handle drains, water heaters, fixtures, and rough-ins for renovations, and they know the local code and permit requirements. The companies below cover repairs, drain cleaning, water heater and sump pump replacement, and full renovation plumbing across the city.

Each is a currently-operating Ottawa business with public reviews you can read, so you can confirm the licence, insurance, and pricing approach before a small leak becomes a flooded basement.

Typical Ottawa cost: A service call fee, then either an hourly rate or a flat rate per job20 companies compared20 rated on Google4.8 avg ratingLast reviewed July 2026

How do I find a reliable plumber in Ottawa?

A reliable plumber is licensed, insured and clear about what the visit costs before arriving. Plumbing is a compulsory licensed trade in Ontario, so ask to see the plumber's certificate along with proof of insurance. Below are 20 Ottawa plumbers to compare, each with a Google rating and its source.

  • The licence. Plumber is on the list of compulsory trades in Ontario's skilled trades regulation (O. Reg. 876/21), unlike a general contractor or a painter. Ask to see the certificate.
  • Insurance and WSIB. Ask for proof of liability insurance and WSIB coverage in writing.
  • How the visit is priced. Ask whether the call-out fee is credited if you go ahead, whether there is a one-hour minimum, and how the after-hours premium is charged. Ottawa companies do it differently.

How this page orders them: Listings claimed by their owner appear first; all other positions follow the published rating methodology. No business pays for a listing; the methodology page gives every rule.

For published Ottawa rates with the company named beside each, read What a plumber costs in Ottawa.

To see plumbers ranked by Google review volume on a stated method, read Best plumbers in Ottawa, ranked by review volume.

Listed first

Plumbers worth considering

A focused Ottawa shortlist. Listings claimed by their owner appear first; all other positions follow our published rating methodology.

Listings claimed by their owner appear first. All other positions follow the selected sort.

  1. Claimed

    Mr. Rooter Plumbing of Ottawa

    Barrhaven +8

    4.7(1,903)on GoogleChecked Aug 2026Plumbers

    Locally owned and operated Ottawa franchise of the Mr. Rooter plumbing brand, serving the greater Ottawa region with residential and commercial plumbing and drain work.

    View Mr. Rooter Plumbing of Ottawa
    View Mr. Rooter Plumbing of Ottawa directory profile
  2. Featured

    B&W Plumbing

    Kanata +7

    5.0(209)on GoogleChecked Aug 2026Plumbers

    Ottawa plumbing company founded by plumbers Corey Bedell and Graham Winchester, providing residential and commercial plumbing with 24/7 emergency availability.

    View B&W Plumbing
    View B&W Plumbing directory profile
  3. Featured

    John The Plumber

    Barrhaven +4

    4.8(2,519)on GoogleChecked Aug 2026Plumbers

    Ottawa plumbing company with branch locations across Barrhaven, Kanata, Nepean, Orléans and Stittsville, offering residential plumbing and 24/7 emergency service.

    View John The Plumber
    View John The Plumber directory profile
  4. The Irish Plumber

    Kanata +7

    4.8(800)on GoogleChecked Aug 2026Plumbers

    Locally owned Ottawa plumbing company based at 1405 Raven Ave, offering 24/7 emergency plumbing service.

    View The Irish Plumber
    View The Irish Plumber directory profile

More plumbers

Also serving Ottawa

  1. Featured

    JD Swallow Heating & Cooling

    4.9(1,466)on GoogleChecked Aug 2026Duct Cleaning

    JD Swallow Heating & Cooling is an air duct cleaning service in Ottawa offering heating and cooling. Rated 4.9 from 1466 Google reviews.

    View JD Swallow Heating & Cooling
    View JD Swallow Heating & Cooling directory profile
  2. Featured

    The Super Plumber - Ottawa

    Barrhaven +5

    4.9(465)on GoogleChecked Aug 2026Plumbers

    The Super Plumber - Ottawa is a plumber in Ottawa offering drainage, hot water systems and water softeners. Rated 4.9 from 460 Google reviews.

    View The Super Plumber - Ottawa
    View The Super Plumber - Ottawa directory profile
  3. Featured

    Braden Foundation Construction

    5.0(105)on GoogleChecked Aug 2026Basement Finishing

    Braden Foundation Construction is a waterproofing service in Ottawa offering concrete work and drainage. Rated 5 from 105 Google reviews.

    View Braden Foundation Construction
    View Braden Foundation Construction directory profile
  4. Cambridge Comfort Home Service Inc.

    Manotick

    4.9(158)on GoogleChecked Aug 2026Duct Cleaning

    Cambridge Comfort Home Service Inc. is an air duct cleaning service in Manotick, Ottawa offering hot water systems. Rated 4.9 from 158 Google reviews.

    View Cambridge Comfort Home Service Inc.
    View Cambridge Comfort Home Service Inc. directory profile
  5. Out Of This World Plumbing Ottawa

    Barrhaven +8

    4.8(1,201)on GoogleChecked Aug 2026Plumbers

    Out Of This World Plumbing Ottawa is a plumber in Nepean, Ottawa offering bathroom renovation, drainage and hot water systems. Rated 4.8 from 1201 Google reviews.

    View Out Of This World Plumbing Ottawa
    View Out Of This World Plumbing Ottawa directory profile
  6. Pipes Plumbing

    Barrhaven +5

    4.9(126)on GoogleChecked Aug 2026Plumbers

    Pipes Plumbing is a plumber in Ottawa offering plumbing. Rated 4.9 from 125 Google reviews.

    View Pipes Plumbing
    View Pipes Plumbing directory profile
  7. Plumbing Now

    Nepean +3

    4.8(311)on GoogleChecked Aug 2026Plumbers

    Ottawa plumbing company operating since 2005, handling both city and rural plumbing including well systems and water treatment, with 24/7 service.

    View Plumbing Now
    View Plumbing Now directory profile
  8. Dr. Pipe Drain and Plumbing

    Barrhaven +4

    4.9(70)on GoogleChecked Aug 2026Plumbers

    Dr. Pipe Drain and Plumbing is a plumber in Ottawa offering bathroom renovation, drainage and hot water systems. Rated 4.9 from 70 Google reviews.

    View Dr. Pipe Drain and Plumbing
    View Dr. Pipe Drain and Plumbing directory profile
  9. DrainPro

    Barrhaven +6

    4.8(112)on GoogleChecked Aug 2026Plumbers

    DrainPro is a plumber in Nepean, Ottawa offering plumbing. Rated 4.8 from 112 Google reviews.

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    View DrainPro directory profile
  10. Environmental Plumbing

    Barrhaven +7

    4.8(108)on GoogleChecked Aug 2026Plumbers

    Environmental Plumbing is a plumber in Ottawa offering drainage. Rated 4.8 from 108 Google reviews.

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    View Environmental Plumbing directory profile
  11. Ottawa Foundation Repair

    4.8(98)on GoogleChecked Aug 2026Basement Waterproofing

    Ottawa Foundation Repair is a waterproofing service in Ottawa offering concrete work and septic systems. Rated 4.8 from 98 Google reviews.

    View Ottawa Foundation Repair
    View Ottawa Foundation Repair directory profile
  12. Penta Plumbing Ltd.

    4.8(50)on GoogleChecked Aug 2026Plumbers

    Penta Plumbing Ltd. is a plumber in Ottawa offering plumbing. Rated 4.8 from 50 Google reviews.

    View Penta Plumbing Ltd.
    View Penta Plumbing Ltd. directory profile
  13. Safari Plumbing Ltd.

    Orléans +5

    4.6(422)on GoogleChecked Aug 2026Plumbers

    Nepean-based plumbing company serving Ottawa communities, offering drain, water heater and general plumbing services. Holds an A+ rating with the Better Business Bureau.

    View Safari Plumbing Ltd.
    View Safari Plumbing Ltd. directory profile
  14. C & N Electric and Plumbing Ltd

    Manotick

    4.5(50)on GoogleChecked Aug 2026Electricians

    C & N Electric and Plumbing Ltd is an electrician in Manotick, Ottawa offering electrical work. Rated 4.5 from 50 Google reviews.

    View C & N Electric and Plumbing Ltd
    View C & N Electric and Plumbing Ltd directory profile
  15. Aqua Drain Sewer Services

    4.2(95)on GoogleChecked Aug 2026Plumbers

    Aqua Drain Sewer Services is a plumber in Navan, Ottawa offering drainage and septic systems. Rated 4.2 from 95 Google reviews.

    View Aqua Drain Sewer Services
    View Aqua Drain Sewer Services directory profile
  16. Ottawa Plumbing and Heating

    Barrhaven +5

    4.2(124)on GoogleChecked Aug 2026Plumbers

    Ottawa Plumbing and Heating is a plumber in Kars, Ottawa offering duct cleaning and heating and cooling. Rated 4.2 from 123 Google reviews.

    View Ottawa Plumbing and Heating
    View Ottawa Plumbing and Heating directory profile

A compulsory trade

Hiring a plumber in Ontario: the certificate you can look up

Plumber is one of Ontario's compulsory trades, which means the person doing the work has to hold a certificate to do it legally and that certificate is on a public register. In Ottawa there is a second thing worth knowing before a basement job is quoted: the City pays part of the cost of the devices that stop sewage coming back up.

Compulsory means what it says

Skilled Trades Ontario lists plumber among the compulsory trades, alongside electrician, steamfitter and others. Working in a compulsory trade requires a Certificate of Qualification, a Provisional Certificate of Qualification, or a registered training agreement as an apprentice.

Those are checkable. Skilled Trades Ontario publishes a Public Register precisely so a member of the public can confirm that a skilled trades professional or apprentice can legally work in a compulsory trade. Ask for the name on the certificate rather than the company name, because the register lists people.

One exemption is worth knowing if you are quoted by someone from across the river. Holders of an equivalent Certificate of Qualification issued by Quebec, and registered Quebec apprentices, are exempt from the Ontario requirement in plumbing and six other trades, and their information does not appear on the Ontario register.

The City pays toward protective plumbing

Ottawa's Residential Protective Plumbing program provides financial assistance to qualified property owners for installing protective plumbing devices: indoor sanitary backwater valves, storm backwater valves, outdoor storm backwater valves, and primary or secondary sump pumps with battery backup, with a higher rebate where a sump pit has to be built.

Because the rebate amounts change, read them from the City's own page rather than from a quote. What matters at the quoting stage is that the work qualifies, so ask the plumber which program line a proposed device falls under before the job is booked rather than after it is paid for.

Which approvals a plumbing job needs

  1. Building permit: required where the work is an installation, erection, extension, or material alteration or repair. Moving fixtures and opening walls sits inside that language.
  2. Electrical: not the City's. It states that it does not regulate electrical installations and that no building permit is required for work that is exclusively electrical. A sump pump circuit is work for a Licensed Electrical Contractor, who files the notification with the Electrical Safety Authority.
  3. Gas: neither. Work on a gas water heater or a gas line is for a certified technician working for a contractor registered with the Technical Standards and Safety Authority.

One bathroom can therefore involve three different authorities. A quote that mentions only one has either scoped the job narrowly or not thought about it.

For a bathroom renovation in Ottawa, the kitchen and bath renovators have a page of their own, with the permit and trade checks that job needs.

What the contract has to say

Ontario's consumer protection rules apply to hiring a contractor. Where a written estimate is included in the contract, the final price cannot be more than ten per cent above it unless you agree to a new price and sign a change to the contract.

If you sign in your home, that is a direct agreement and you can cancel within ten days of receiving a written copy, for any reason. Keep the copy. The cancellation clock starts when you get it, not when you sign.

How much does a plumber cost in Ottawa?

Ask how the plumber bills before you compare two prices. The Ottawa companies that publish their prices use two models: an hourly rate plus parts, with a fee to come out, or one fixed price for the whole job, agreed before the work starts.

Hourly work can carry a minimum. One Ottawa price list says hourly billers in the city often charge at least an hour, so a short repair can cost a full one. On a fixed-price job, the quote holds unless the scope of the work changes.

After hours, the premium comes in two forms. One Ottawa price list puts emergency work at 50 to 100 per cent above standard rates; another company keeps its standard repair prices and adds a single dispatch fee after hours. A quote only compares with another once you know which one you are getting.

No water in a cold snap: is the frozen pipe the City's or yours?

The City of Ottawa owns the water service pipe from the watermain to the water shut-off valve. From that valve into the house, the pipe belongs to the property owner, and so do its repairs. If the taps stop running in a cold snap, call 3-1-1 before booking a plumber: City crews thaw frozen service pipes, and the bill depends on which side froze.

Thawing costs nothing where the pipe froze on municipal property. Where it froze on private property, the City charges the cost of the work plus 15 per cent, every time it thaws that service. Homes on a private street, condominium corporations included, cannot use the City's inspection or thawing service.

When you can tell the frozen section is inside the house, the City suggests opening the cold tap nearest to it and warming the pipe with an electric heating pad or a hair dryer, never an open flame. For a service at risk of freezing, its advice is to find out why, because the pipe may not have been installed deep enough.

A letter from the City telling you to run your water means your service is on its at-risk list. Leave a steady stream of cold water at least the width of a drinking straw until the frost is out of the ground at the end of April, and keep rooms with water pipes above 8 °C. Who pays for that water follows the same split.

If City records put the freeze point on your property, you do; if it is on the City's side and you received the written notice, your bill is based on past use.

Water coming up through the basement drain: call 3-1-1 first

Report a sewer backup to the City through 3-1-1. City staff are on duty at all times, and someone 18 or older has to be home to meet them. Clear at least a metre around the sewer clean-out, usually in the basement floor at the front of the house near the water meter, and leave its caps closed.

To tell sewage from groundwater, the City suggests running a sink or flushing a toilet and watching the floor drain. If water comes up, the drain line is backing up; if nothing comes up, the problem is likely groundwater. Until it is sorted out, hold off on anything that uses water, since whatever goes down a drain may end up in the basement.

City staff inspect the sewer main near the house first and repair it if that is the fault. If the problem is in the home's own drain system, the City tells the owner to call a plumber. The sanitary and storm laterals, the pipes between the house and the main, split at the property line: the City owns the street side and the owner owns the house side.

Who pays for a lateral repair is decided only after City staff have reviewed the case.

Call your insurer as well. The City says the insurer typically submits any claim to the City on your behalf, and it asks you to photograph the damage and keep receipts for emergency and repair work.

What a plumber costs in Ottawa: hourly rates, call-out fees and fixed prices, publisher by publisher

Buyer guide

Hiring a plumber in Ottawa

What separates a great plumber from a cheap quote, and the questions worth asking before you sign.

  • Confirm the licence and insurance

    Plumbing is a licensed trade in Ontario. Ask for the licence number and confirm liability insurance before any work starts, especially for gas water heaters.

  • Ask how they price

    Some plumbers charge flat-rate per job, others by the hour plus parts. Ask which, and get any diagnostic or trip fee confirmed before they arrive.

  • Deal with a sump pump before spring

    Ottawa's spring melt tests every sump pump. Have yours checked, and ask about a battery backup so it keeps running through a power outage.

  • Know your main shutoff

    Before any emergency, have the plumber show you where the main water shutoff is. Knowing it can save your home from a burst-pipe flood.

year-round, with a freeze risk from December to March

When should you book a plumber in Ottawa?

Plumbing emergencies do not follow a season, but one particular failure does. Ottawa averages -9.6 °C in January with overnight lows near -14 °C, and December through March all average at or below freezing. Pipes in unheated spaces, outdoor taps and unprotected crawl spaces are exposed for that whole stretch, which is why shutting off and draining exterior lines is an autumn job.

Temperatures are the Environment and Climate Change Canada: Canadian Climate Normals for station OTTAWA CDA, 1991-2020. Checked 2026-09-10. Any single year can run warmer or colder than the normals.

Before you hire

What should you check before hiring a plumber in Ottawa?

Plumber is a compulsory certification trade in Ontario, so the work legally requires a current Certificate of Qualification. Skilled Trades Ontario issues that certificate and runs the public register where one can be verified. Ottawa Service Directory is a listings site, not a regulator: we publish what a business reports about itself, so confirm what applies to your job with the source below and with the business before work starts.

Source: Skilled Trades Ontario: plumber, a compulsory trade. Checked 2026-08-24. Rules and thresholds change, so confirm before work starts.

Common questions

Plumbers in Ottawa, answered

Do Ottawa plumbers need a licence?
Yes. Plumbing in Ontario is a licensed trade. Ask for the licence number and confirm liability insurance before any work starts.
How much does a plumber cost in Ottawa?
Many Ottawa plumbers charge a service call fee plus an hourly or flat rate, with common repairs landing in the low hundreds. Emergency and after-hours calls cost more; confirm rates before they come.
How do I stop pipes from freezing in winter?
Keep the heat on, insulate pipes in unheated spaces, let a tap trickle on the coldest nights, and disconnect outdoor hoses in fall. If a pipe freezes, shut off the water and call a plumber before it thaws and bursts.
How long does a water heater last in Ottawa?
A conventional tank water heater lasts about 8 to 12 years. If yours is leaking or near that age, replace it before it fails and floods; ask about tankless as an option.
Why does my drain keep clogging?
Recurring clogs often mean grease buildup, tree roots in the line, or a venting issue rather than a one-off blockage. A plumber can camera the line to find the real cause instead of just snaking it again.
What is the average cost of a plumber in Ottawa?
Published Ottawa prices are ranges, not an average. Safari Plumbing publishes $80 to $150 an hour for licensed plumbers on standard repairs, and Plumbing Now describes Ottawa hourly billing as $120 to $180 an hour plus parts (both read 30 September 2026). Call-out fees are separate, so ask whether they are credited against the work.
Where can I find a same-day plumber in Ottawa?
Phone the plumbers on this page and ask whether they can attend today, then ask how the after-hours premium is charged before you book. Ottawa companies price it two ways: Safari Plumbing says emergency work runs 50 to 100 per cent above standard rates, while Plumbing Now charges a dispatch fee after hours and keeps repairs at standard prices (read 30 September 2026).
What plumbers won't tell you?
Nothing is hidden, but few details are volunteered, so ask. Is there a call-out fee, and is it credited if you go ahead? Is there a one-hour minimum? Is there a trip fee for a remote part of the city? How is the after-hours premium charged? Get the answers before the plumber is on the way.
How much should I pay for a plumber?
Pay what the written quote says for the job you described, not a day rate. Published Ottawa hourly figures run from $80 to $180 (Safari Plumbing, Summit Drain & Plumbing and Plumbing Now, read 30 September 2026), and the spread comes from what the rate covers. Compare quotes for the same work, line by line, and ask what is not included.

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