Plumbing and gas work in Calgary: which permits a homeowner can get, and why gas is different

Moving a sink, adding a basement bathroom, swapping a furnace or running gas to a new range all feel like ordinary renovation tasks. In Calgary each of them falls under a permit, and the gas rules are much stricter than the plumbing rules. Work done without the right permit tends to surface at resale or after an insurance claim.

All plumbing and gas work needs a permit

The City of Calgary's plumbing and gas permits page says all plumbing and gas installations require permits, including installations for renovation work. A plumbing permit covers installing, altering or adding to a plumbing system; a gas permit covers installing, altering or adding to a gas system. There are separate permits for hydronic heating, residential furnace replacement by HVAC contractors, gas meter relocations, gas fireplace inserts, private sewage systems, cross connection control devices, solar hot water and water reuse systems. 'Just moving a drain' is still altering the system.

What a homeowner can do

According to the City, homeowners may apply for all permit types except a gas permit. To get one, the homeowner must live, or intend to live, at the work location and apply in person with proof of qualifications where needed. There is also a homeowner fireplace installation permit for a homeowner who lives in the home and installs the fireplace personally. A homeowner permit is for the owner's own work; it is not a way for an unlicensed helper to work under the owner's name.

Why gas is different

A homeowner can get a gas permit only if they are an Alberta certified journeyman gasfitter working on a single-family residential home. For everyone else, gas work, including connecting a new range or barbecue line, relocating a meter or replacing a furnace, belongs to a contractor who registers with the City for online permitting. When you hire for gas work, ask who takes out the permit and ask to see it before work starts.

Inspections

Inspections are booked through 311 or a VISTA account, and next-day requests must be made by 2 p.m. Rough-in work must be inspected before it is covered, so plan the drywall schedule around the plumbing and gas inspections. A failed or missed rough-in inspection on a basement bathroom can mean removing finished walls.

Fixtures and fees

The City notes that its Water Utility Bylaw requires low water use fixtures in all homes, including renovations, so check fixture ratings before you buy. Permit fees change and increase every January 1; check the current fee schedule rather than relying on an old quote. The City's Technical Assistance Centre answers common plumbing and gas questions.

Prevention Checklist

• Treat every new or moved drain, supply or gas line as permit work.
• Apply in person with proof of residence if you will do your own plumbing.
• Hire a gas contractor unless you are an Alberta certified journeyman gasfitter.
• Ask who holds the permit before work starts.
• Book rough-in inspections before walls are closed.
• Buy low water use fixtures, as the City's bylaw requires.

References

1. City of Calgary. Plumbing and gas permits, Web page, Permit types, homeowner rules, gasfitter rule, inspections, Water Utility Bylaw, fees. Accessed 2026-11-03.

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