What's the Difference Between a Plumber and a Gasfitter in BC?

When something goes wrong in your home, knowing who to call matters. Most homeowners know to call a plumber for a burst pipe or a blocked drain, but things get murkier when the job involves a gas line, a furnace, or a new appliance hookup. Plumber and gasfitter are separate certifications in BC, and not every plumber is licensed to do gas work.

Here's how to tell the difference and why it matters for your home.

Plumbers and Gasfitters Are Regulated Separately in BC

In BC, both plumbers and gasfitters are regulated trades under the Industry Training Authority (ITA), but they hold different certifications and are licensed to do different work.

A licensed plumber is certified to work on water supply lines, drainage systems, venting, fixtures, and related systems. Think pipes, drains, toilets, water heaters, and bathroom or kitchen plumbing.

A licensed gasfitter is certified to work on natural gas and propane systems. This includes gas lines, gas appliances, furnaces, boilers, fireplaces, and anything else connected to a gas supply.

The reason they're separate is straightforward: gas work carries different risks than water work, and the training, testing, and safety standards reflect that.

What a Plumber Can Do

A licensed plumber handles the water and drainage systems in your home. Common jobs include:

• Installing or repairing water supply lines

• Fixing or replacing toilets, sinks, showers, and tubs

• Clearing blocked or slow drains

• Installing or replacing water heaters (tank or tankless)

• Roughing in plumbing for kitchen and bathroom renovations

• Repiping a home, including Poly-B replacement

A plumber can install a gas water heater in some cases, but connecting it to the gas line requires a gasfitting certification. The two trades often work together on the same job.

What a Gasfitter Can Do

A licensed gasfitter handles everything connected to your home's gas supply. Common jobs include:

• Installing, servicing, or repairing a furnace or boiler

• Connecting gas appliances, including stoves, dryers, and fireplaces

• Installing or relocating a gas line

• Hooking up a gas BBQ, fire pit, or outdoor gas feature

• Servicing or replacing a gas water heater

• Installing a tankless water heater on a gas supply

In BC, any work on a natural gas or propane system must be done by a licensed gasfitter. This is not optional, and it's not something a general handyman or unlicensed contractor can legally do.

Why the Distinction Matters

Hiring someone without the right certification for gas work creates two problems: safety and liability.

Gas leaks and improper connections are serious hazards. The certification requirement exists because gas work done incorrectly can result in carbon monoxide exposure, fire, or explosion. A licensed gasfitter has completed specific training and passed exams to demonstrate they can work safely on these systems.

On the liability side, work done by an unlicensed person on a gas system can void your home insurance and create problems when you sell your home. Insurance companies and home inspectors look for permits and licensed trades on gas work. If a claim arises from an improperly installed gas line, coverage may be denied.

Can One Person Hold Both Certifications?

Yes, and many do. It's common for trades working in residential plumbing and heating to hold both a plumbing certification and a gasfitting certification. This means one person or one company can handle the full scope of a job, from connecting a water heater's supply lines to hooking it up to the gas.

When you're hiring, it's worth asking whether the person or company holds both, particularly if your job involves gas appliances, a furnace, a boiler, or a renovation that touches both water and gas systems.

Jobs That Often Require Both

Some of the most common home service calls involve both trades working together, or one tradesperson holding both certifications:

Furnace replacement: A gasfitter handles the gas connection and venting; plumbing certification may be needed for condensate drain lines on high-efficiency units.

Kitchen renovation: A plumber handles sink and dishwasher plumbing; a gasfitter connects a gas range or cooktop.

Water heater replacement: A plumber handles the water connections; a gasfitter connects the gas supply. If it's a tankless unit, both are typically involved.

Bathroom addition: A plumber handles all fixture rough-ins; if the renovation includes a gas fireplace, a gasfitter handles that portion.

Frequently Asked Questions

Do I need a permit for gas work in BC? Yes. Most gas installations and modifications require a permit in BC, and the work must be inspected. Your gasfitter should pull the permit as part of the job. Be cautious of any contractor who suggests skipping the permit process.

Can a plumber hook up my gas stove? Not legally, unless they also hold a gasfitting certification. Connecting an appliance to a gas line requires a gasfitting licence in BC.

What is Technical Safety BC? Technical Safety BC is the provincial authority that oversees safety in regulated technical systems, including gas systems. Gasfitters must be licensed through the appropriate regulatory body, and gas work is subject to inspection. Your contractor should be familiar with the permit and inspection process.

How do I verify a contractor is licensed in BC? You can ask the contractor directly for their certification and licence number. For gas work, you can also ask whether they'll be pulling a permit, which requires a valid licence.

What if a previous owner had unlicensed gas work done? This can create problems when you sell, refinance, or make an insurance claim. If you suspect unpermitted gas work in your home, it's worth having a licensed gasfitter assess the system. They can identify what was done and advise on whether it needs to be corrected.

One Company for Both

At Ark Plumbing and Heating, our team holds both plumbing and gasfitting certifications. Whether you need gasfitting work, a furnace serviced or replaced, a boiler looked after, or straightforward plumbing repairs, we can handle the full scope without you needing to coordinate multiple trades.

We serve homeowners across the Lower Mainland and Fraser Valley, including Langley, Surrey, Burnaby, Coquitlam, Maple Ridge, Abbotsford, and Mission.

Request a free quote or call 604-441-3411.