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Compulsory Trade · Licence Required

Plumbing Licensing in Quebec

Plumbing contractors must hold a licence issued by the CMMTQ (Corporation des maîtres mécaniciens en tuyauterie du Québec), acting as mandatary of the RBQ. Individual plumbers must hold a CCQ journeyman competency certificate.

Key facts

At a Glance

Key licensing facts for plumbings in Quebec

Trade Classification

Compulsory Trade

Licence Required

Apprenticeship

8,000 hours

~4 years (4 periods)

Certification

CMMTQ contractor licence and CCQ journeyman certificate

Red Seal

Available

Interprovincial mobility

Permits

Typically required

Insurance

Required/Expected

The details

Licensing Requirements

Reviewing trade credentials and training requirements

What it takes to qualify

Credentials, training, and coverage for this trade

  • Apprenticeship: 8,000 hours (~4 years (4 periods))
  • Certification: CMMTQ contractor licence and CCQ journeyman certificate
  • Red Seal available for interprovincial mobility
  • Liability insurance is required or expected

Plumbing work in Quebec is regulated through two bodies. The Corporation des maîtres mécaniciens en tuyauterie du Québec (CMMTQ) acts as mandatary of the RBQ, issuing contractor licences for plumbing and heating work (subclass 15.5 for plumbing). The CMMTQ verifies the professional qualifications of plumbing and heating contractors. Individual plumbers working on construction sites must hold a CCQ journeyman competency certificate. The plumber apprenticeship consists of four periods of 2,000 hours each (8,000 hours total, approximately 4 years). Alternatively, a Diploma of Vocational Studies (DEP) in plumbing and heating (1,680 hours) combined with work experience can lead to qualification. All plumbing work must comply with the Quebec Construction Code. Red Seal endorsement is available.

Regulatory Body

Corporation des maîtres mécaniciens en tuyauterie du Québec (CMMTQ) for contractor licences; CCQ for worker competency certificates

Visit official website

How to Verify

Ask for the contractor's CMMTQ licence number and verify it on the RBQ's online Licence Holders' Registry at rbq.gouv.qc.ca. Individual plumbers should hold a CCQ competency certificate.

Buyer beware

Red Flags to Watch For

Warning signs when hiring a plumbing

No Certificate of Qualification - this is a compulsory trade in Ontario

Refuses to provide a written quote or only gives vague verbal estimates

Pressures you into immediate, expensive repairs without explaining alternatives

No WSIB coverage or liability insurance

Suggests unpermitted work to save money on permits

Before you sign

Questions to Ask Before Hiring

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Ask these before signing any contract

  • Do you hold a Certificate of Qualification from Skilled Trades Ontario?
  • Do you carry liability insurance and WSIB coverage? Can I see proof?
  • Will you provide a written, itemized quote before starting work?
  • Do you offer a warranty on parts and labour?
  • Will permits be required, and will you handle pulling them?

Good to know

Frequently Asked Questions

Do plumbings in Quebec need a licence?

Plumbing work in Quebec is regulated through two bodies. The Corporation des maîtres mécaniciens en tuyauterie du Québec (CMMTQ) acts as mandatary of the RBQ, issuing contractor licences for plumbing and heating work (subclass 15.5 for plumbing). The CMMTQ verifies the professional qualifications of plumbing and heating contractors. Individual plumbers working on construction sites must hold a CCQ journeyman competency certificate. The plumber apprenticeship consists of four periods of 2,000 hours each (8,000 hours total, approximately 4 years). Alternatively, a Diploma of Vocational Studies (DEP) in plumbing and heating (1,680 hours) combined with work experience can lead to qualification. All plumbing work must comply with the Quebec Construction Code. Red Seal endorsement is available.

How can I verify a plumbing's credentials in Quebec?

Ask for the contractor's CMMTQ licence number and verify it on the RBQ's online Licence Holders' Registry at rbq.gouv.qc.ca. Individual plumbers should hold a CCQ competency certificate.

What are the red flags when hiring a plumbing?

(1) No Certificate of Qualification - this is a compulsory trade in Ontario (2) Refuses to provide a written quote or only gives vague verbal estimates (3) Pressures you into immediate, expensive repairs without explaining alternatives (4) No WSIB coverage or liability insurance (5) Suggests unpermitted work to save money on permits

What questions should I ask before hiring a plumbing?

(1) Do you hold a Certificate of Qualification from Skilled Trades Ontario? (2) Do you carry liability insurance and WSIB coverage? Can I see proof? (3) Will you provide a written, itemized quote before starting work? (4) Do you offer a warranty on parts and labour? (5) Will permits be required, and will you handle pulling them?

Should my plumbing have insurance?

Yes, plumbings in Quebec are expected to carry liability insurance.

What is the Red Seal endorsement for plumbings?

The Red Seal endorsement is a nationally recognized certification that allows tradespeople to work across all Canadian provinces and territories without additional testing. A Red Seal-endorsed tradesperson has met a standardized level of competency.

Does my plumbing contractor need an RBQ licence?

In Quebec, most contractors performing construction work must hold an RBQ (Régie du bâtiment du Québec) licence. You can verify any contractor's licence on the RBQ's online Licence Holders' Registry at rbq.gouv.qc.ca. Always ask for the licence number and verify it before hiring.

How much does a plumbing cost in Quebec?

Typical rates for plumbings in Quebec range from $90-$200/hour. Type and complexity of the job, accessibility of pipes, whether permits are required, emergency vs. scheduled service (emergency rates are 1.5-2x standard), age and condition of existing plumbing, fixture quality, and whether the home has older lead or galvanized pipes that need replacement.

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