Gas Plumbing: Why You Always Need a Pro

Gas work is dangerous, regulated, and requires certification. Here's what homeowners need to know.

Never DIY Gas Work

Gas leaks can cause explosions, fires, and carbon monoxide poisoning. All gas work in BC requires a licensed gas fitter.

What You Need to Know

Gas work is regulated by law

In British Columbia, all gas work must be performed by someone holding a valid gas license (Class A or B Gas Fitter). This isn't optional — it's the law, and for good reason.

Permits are required

Installing or modifying gas lines, installing gas appliances, or converting from one fuel type to another all require permits. Your contractor should handle this.

Insurance implications

Unpermitted or DIY gas work can void your home insurance. If something goes wrong, you may not be covered — and you could be personally liable.

What Requires a Licensed Gas Fitter

  • Installing or replacing a gas water heater
  • Installing or replacing a gas furnace or boiler
  • Running new gas lines (indoor or outdoor)
  • Connecting a gas range, dryer, or BBQ line
  • Installing a gas fireplace or insert
  • Repairing or modifying any gas line
  • Converting an appliance to a different fuel type
  • Relocating any gas appliance

The simple rule: If it involves gas, call a licensed gas fitter. No exceptions.

Recognizing a Gas Leak

Warning Signs

  • Smell: Rotten egg or sulfur odor (added to natural gas for detection)
  • Sound: Hissing or whistling near gas lines or appliances
  • Sight: Dead plants near gas lines, bubbles in standing water
  • Physical symptoms: Headaches, dizziness, nausea, fatigue

If You Suspect a Gas Leak:

  1. 1. Leave immediately — don't turn on/off any switches or electronics
  2. 2. Don't use your phone inside — call from outside or a neighbor's
  3. 3. Call FortisBC at 1-800-663-9911 (or 911 for emergencies)
  4. 4. Don't return until cleared by FortisBC or emergency services

Hiring a Gas Fitter

Verify their license: Ask for their gas license number. You can verify BC gas licenses through Technical Safety BC.

Confirm they'll pull permits: A reputable contractor will handle all required permits. If they suggest skipping permits, find someone else.

Get it in writing: Scope of work, cost, permit handling, and warranty should all be documented.

Many plumbers have gas certification: Look for plumbers who are also licensed gas fitters (Class B) for jobs involving both.