Gas Bayonet Installation Cost Calculator
Estimate the cost of a gas bayonet installation. The scale of the job and how easy the site is to access are the main cost drivers, along with any making-good afterwards.
Your gas bayonet installation details
Your estimate sits within the typical range.
A gas bayonet is cheapest installed close to the existing gas line, the pipe run is the main cost. It must be done by a licensed gasfitter with a compliance certificate, which is required and worth having on record.
💰 Ways to save
- Get at least two or three quotes, trade rates and mark-ups vary widely.
- Clear and prepare the area yourself where you safely can, you are paying tradie rates for any time spent shifting your gear.
- Bundle related jobs into one visit so you pay the call-out and setup once.
How we estimate this
A gas bayonet installation in Australia typically costs around $250 to $450 in 2026 for a short run near the existing gas line, rising to $600 to $900 for longer runs or new line sections, plus a compliance certificate.
Pricing reviewed: November 2026.
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Pricing reviewed November 2026. Indicative Australian costs, not a quote.
Understanding gas bayonet installation costs in Australia
A gas bayonet installation in Australia typically costs around $250 to $450 in 2026 for a short run near the existing gas line, rising to $600 to $900 for longer runs or new line sections, plus a compliance certificate.
A gas bayonet is a quick-connect point for a gas heater. The cost is mostly the pipe run from the existing gas line, so mounting it close is cheapest. It is licensed gasfitting work and needs a compliance certificate.
Frequently asked questions
How much does a gas bayonet installation cost in Australia?
Roughly $250 to $450 in 2026 for a short run near the gas line, and $600 to $900 for longer runs, plus a compliance certificate. The pipe run is the main cost.
Can I install a gas bayonet myself?
No, gas work must be done by a licensed gasfitter in Australia, for safety and to be legal and insured. The gasfitter also issues the compliance certificate required for the work.
Are you a tradesperson / contractor?
Everyone on this page is working out what gas bayonet installation costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.