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Backflow Plumber Jobs in Ontario (NOW HIRING)

Plumber

Toronto, ON

CA$35 - CA$42/hr

Valid OWWA Backflow Prevention certification * 3 - 5 years of maintenance plumbing experience * Registered member in good standing with Skilled Trades Ontario * A certified backflow prevention device ...

As a Plumber, you will be an integral part of a collaborative team focused on delivering seamless ... Support annual inspections, service and installation of backflow devises * Act as a back up to HVAC ...

Plumber

Burlington, ON

CA$35 - CA$45/hr

Backflow Certification. An asset, but not required * Legally authorized to work in Canada (FCM does not sponsor work permits, visas, or immigration processes) What We Offer * Competitive wage based ...

Plumber

Toronto, ON · On-site

CA$35 - CA$45/hr

Backflow Certification. An asset, but not required * Legally authorized to work in Canada (FCM does not sponsor work permits, visas, or immigration processes) What We Offer * Competitive wage based ...

Valid Driver's License Plumbing Journeyman or Master Certification Additional Considerations Backflow Certification Gas Fitters Certification Experience with computerized work management system.

Valid Cross Connection / Backflow Device testing license. Experience * Minimum five (5) years recent experience as a certified plumber. * Experience testing backflow devices. * Work experience within ...

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Backflow Plumber information

What is a backflow plumber?

Backflow plumbers are specialized plumbing professionals who install, test, repair, and maintain backflow prevention devices in water systems. These devices are crucial for preventing contaminated water from flowing backward into clean water supplies, protecting public health. Backflow plumbers are often certified and follow local regulations to ensure that water systems remain safe and compliant with codes. They may work in residential, commercial, or industrial settings, and are trained to identify potential risks of cross-connections and contamination.

What are the key skills and qualifications needed to thrive as a backflow plumber, and why are they important?

A Backflow Plumber must possess strong plumbing skills, knowledge of water systems, and typically hold relevant licenses or certifications in backflow prevention. Familiarity with backflow testing equipment, plumbing codes, and maintenance management systems is commonly required. Attention to detail, problem-solving abilities, and strong customer service skills help set top professionals apart. These competencies ensure safe water supply, compliance with regulations, and reliable service to clients.

What are some common challenges faced by backflow plumbers on the job?

Backflow plumbers often encounter challenges such as diagnosing complex backflow prevention systems, dealing with outdated or non-compliant installations, and accessing hard-to-reach piping in commercial or industrial settings. They must stay up-to-date with local codes and regulations, as backflow prevention is highly regulated to ensure water safety. Additionally, backflow plumbers frequently coordinate with building owners, facility managers, and inspectors to schedule testing and repairs, requiring strong communication and problem-solving skills.

What is the difference between Backflow Plumber vs Pipefitter?

AspectBackflow PlumberPipefitter
CertificationsBackflow Prevention Certification, State Plumbing LicensePipefitting Certification, State Plumbing License
Work EnvironmentResidential, commercial plumbing systems, backflow prevention devicesIndustrial, commercial, and large-scale plumbing and piping systems
Industry UsageWater supply systems, backflow preventionManufacturing plants, HVAC, industrial piping

Backflow Plumbers and Pipefitters both require plumbing licenses and work with piping systems. However, Backflow Plumbers specialize in preventing contaminated water from reversing flow in potable water systems, focusing on backflow prevention devices. Pipefitters work on larger, industrial piping systems, often in manufacturing or HVAC settings. While their skills overlap, their primary roles and environments differ significantly.

Do you need to be a licensed plumber to install a backflow preventer?

Backflow plumbers are typically required to be licensed or certified to install backflow preventers, as these devices are critical for water safety and must meet local codes. Licensing ensures proper installation, testing, and maintenance of backflow prevention devices, which often involves specialized knowledge and tools. Regulations vary by location, so it is important to check local requirements for backflow preventer installation.

What are popular job titles related to Backflow Plumber jobs in Ontario?

For Backflow Plumber jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Backflow Plumber jobs in Ontario look for?

The top searched job categories for Backflow Plumber jobs in Ontario are:

What cities in Ontario are hiring for Backflow Plumber jobs?

Cities in Ontario with the most Backflow Plumber job openings:

Infographic showing various Backflow Plumber job openings in Ontario as of August 2026, with employment types broken down into 92% Full Time, and 8% Part Time. Highlights an 100% In-person job distribution.

CA$35 - CA$42/hr

Full-time

Re-posted 17 days ago


Job description

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Thinking about a change? Join EllisDon!

We recognize that the construction industry is changing at a rapid pace, and we continually strive to be at the forefront. Our core values empower people to deliver great careers to one another and develop creative solutions for complex problems on some of the most exciting projects. It doesn’t matter what your expertise and craft is – there are no boundaries. We are a group of professionals with a variety of expertise within pre-construction, construction, and post-construction. To learn more, check out our Cradle to Grave services and hear from our team directly about what a career at EllisDon could look like for you. As you can see, we are a diverse bunch. 

Above all, we are a group of individuals with unique experiences and at EllisDon, we choose to celebrate the strength in our differences, every day. EllisDon’s commitment to Inclusive Diversity is to work together to create an environment where every employee feels safe to be their true and authentic self. Ultimately, EllisDon’s purpose is to provide people with similar values the opportunity to achieve their full potential; to deliver that opportunity for great careers to one another; and to contribute meaningfully to the community we share with others. 

In case you’re curious, here’s what the industry thinks of us and some of the impacts we've made to the communities we work in, and our latest Impact report.

You as a Plumber will:

  • Install, maintain domestic plumbing fixtures and piping, such as sinks, showers, water closets, water coolers, ice machines and other plumbing fixtures.
  •  Install, maintain and repair chilled water, hot water and glycol coils in AHUs, hot water heating equipment such as radiant heating panels, unit heaters and fan coils, lawn sprinklers and water treatment piping system for RO water, soft water and de-ionized water.
  • Install, maintain and repair kitchen equipment, coffee machine, vending machine, grease trap etc.
  • Install, maintain and repair patient care related plumbing equipment / fixtures such as sterilizers, water cooled machineries, bed pan flasher and macerators.
  • Install, maintain and repair minor steam/condensate devices such as steam traps, humidifiers, safety valves, pressure gauges, thermometers, sight glasses, etc.
  • Maintain and repair installed plumbing systems by tracing and rectifying defects, replacing broken pipes and fixtures, soldering and caulking leaks, clearing plugged waste pipes and trap and thawing frozen lines.
  • Undertake a comprehensive preventive maintenance program and ensure that proper maintenance cycles are maintained, and data provided to Supervisor/Manager
  • Unplug sink, toilet, roof drain, floor drain and clear any drainage piping such as glass pipe, PVC pipe or cast-iron pipe. Repair or replace fixtures and fittings in drainage systems.
  • Cut, bend, thread pipes, fit threaded pipes with adjoining pipe assemblies.
  • Weld, braze and solder piping and fitting as is necessary.
  • Perform preventive maintenance to medical gas outlets, fire suppression sprinkler systems, lawn sprinklers, plumbing fixtures, etc.
  • Conduct back flow inspections and cross connection inspections/mapping
  • Install and repair fire suppression and lawn sprinkler lines and fixtures.
  • Sources parts and accessories as may be required from time to time to complete repairs.
  • Keeping work area orderly, clean and safe, following IPAC standards when working in a health care environment.
  • Ensure proper care in the use of equipment and supplies 

Is this the right role for you?

  • Valid Ontario Plumbing Certificate, 306A
  • Valid OWWA Backflow Prevention certification
  • 3 - 5 years of maintenance plumbing experience
  • Registered member in good standing with Skilled Trades Ontario
  • A certified backflow prevention device testing license is preferred.
  • Ability to read, write and speak English fluently
  • Ability to work at heights, using step ladder, scissor lift, telescopic boom, etc.
  • Ability to lift up to 20Kg
  • Ability to read and interpret schematics, plumbing drawing, instruction, and Operation & Maintenance Manual
  • Knowledge and ability to work with plumbing tools and devices safely
  • Ability to work in a team environment, which may support various trades and roles where required, as well as comfort working alone
  • Familiarity working within large facilities is preferred
  • This role will support facilities across the GTA including the downtown Toronto
  • The salary range for this position is $35.00 - $42.00/hr

EllisDon is proud to provide this unique career opportunity that provides continuous learning, opportunity for growth, and a competitive compensation package within an environment that is committed to inclusion and respects diversity.

Go ahead and be yourself. We'll pay you for it!

We are an equal opportunity employer. We welcome people of any age, culture, subculture, gender identity or expression, sexual orientation, nationality, ethnicity, race, size, mental or physical status, veteran status, religion, language, political opinion, working-style preference, family status, education, and socio-economic status. The EllisDon core values of Integrity and Mutual Respect welcomes everyone, at work and in the community, and our value of Mutual Accountability, means that we all have a role to play. As an EllisDon employee, this will ultimately be your commitment to Inclusive Diversity.

Accommodation for Applicants with disabilities will be made during the recruitment process when requested.

We are committed to providing a positive candidate experience and ensuring timely updates are provided to all candidates. If you haven’t already, be sure to create a profile on our Careers page here to remain up to date on the status of your application and learn about new career opportunities as they arise.