Hire a licensed Ventilation Specialist for Rangehood install or replace

Cost is driven mainly by whether the hood is ducted to an existing vent or needs new ducting and penetrations, since new penetrations add substantial labour and materials. Recirculating (filter‑only) installs are generally less material‑ and labour‑intensive, while who supplies the appliance, site access and any after‑hours attendance can also affect the final quote.

• Type of ventilation system

  Ducted systems that require new ducting or penetrations typically involve more labour and materials than recirculating, filter‑based installs.

• Existing duct and exit points

  If an existing duct penetration is serviceable and diameters match, installers can usually work with simple adaptors and fewer materials.

• New roof or wall penetrations

  Cutting new penetrations requires flashings, cowls and sealing (and sometimes fire‑stopping), which increases scope compared with using existing exits.

• Who supplies the appliance

  Homeowners often supply the rangehood while installers typically provide basic ducting and fixings, but some providers may offer to supply the unit.

• Access, height and timing

  Difficult roof access or the need for scaffolding or lifts increases labour and logistics, and after‑hours attendance usually attracts a higher rate.