Ducted Air Conditioning Installation Sydney

Custom-designed, zoned and installed by licensed technicians — in 1–2 days.

A ducted system is only ever as good as its installation. Correct sizing, duct layout, zone design and airflow balancing decide whether you get quiet, even, affordable comfort — or hot spots, noise and power bills that sting. This page explains how iNext designs and installs ducted air conditioning across Sydney, what the process involves, and what to expect from quote to handover.

Quick answer

Ducted air conditioning installation in Sydney takes 1–2 days for most homes and costs $8,000–$15,000+ fully installed. A quality installation includes load-based sizing, a custom zone plan, balanced airflow to every room and commissioning — not just fitting the unit. iNext installs all major brands with a workmanship warranty.

Key takeaways

  • Design first: sizing and zoning are decided before any equipment is ordered
  • Most Sydney installs complete in 1–2 days
  • All major brands — Daikin, ActronAir, Mitsubishi Electric, Fujitsu and more
  • Workmanship warranty plus 5-year manufacturer warranty

What does a proper ducted installation include?

  • Heat-load calculation for your home — not a guess based on floor area alone
  • Custom duct layout sized for correct airflow to each room
  • Zone design matched to how your household actually lives
  • Quality insulated ducting, fittings and diffusers
  • Licensed refrigeration and electrical work, commissioned and tested
  • Airflow balancing so every room reaches temperature evenly

Our installation process, step by step

  • Free on-site assessment — roof space, switchboard and layout inspected
  • Fixed written quote with system, zones and vent positions specified
  • Installation day(s) — indoor unit, duct runs, outdoor unit, vents and zones fitted
  • Commissioning — refrigerant charge verified, airflow balanced, controller configured
  • Handover — full walkthrough plus manufacturer warranty registration

New builds and renovations

Building or renovating? Involve us at plan stage. Designing the ducted system before ceilings go in means perfect vent placement, concealed pipework and no retrofit compromises. We work directly with your builder and provide documentation for the project file. In the Campbelltown–Oran Park growth corridor, new-build ducted design is one of our most requested services.

Which brands do we install?

We’re experienced across Daikin, ActronAir, Mitsubishi Electric, Fujitsu, Samsung, LG, Panasonic and Carrier ducted ranges. Each has strengths — ActronAir’s Australian-designed zoning, Daikin’s dealer support, Mitsubishi Electric’s quiet operation — and we’ll recommend the right fit for your home and budget at quote time.

Ducted installation prices in Sydney (2026 guide)

Typical fully-installed ranges including GST:

ItemTypical price
Small home (up to ~150m², 2–3 zones)$8,000 – $10,500
Medium home (150–250m², 3–5 zones)$10,000 – $13,000
Large home (250m²+, 5–8 zones)$12,000 – $15,000+
Premium smart zoning upgrade+$1,500 – $4,000

Fixed written pricing follows a free on-site assessment — no allowances or surprises.

Frequently asked questions

How long does ducted installation take?

Most homes take 1–2 days. Larger homes, two-storey properties or complex zone plans may take up to 3 days. We confirm the schedule with your quote and stick to it.

Can ducted be installed in a two-storey home?

Yes — ducts can run between floors via wardrobes or bulkheads, or a separate system can serve each level. We assess access during the free quote and show you the options.

Do you remove my old system?

Yes — decommissioning and removing old ducted units, and responsibly handling refrigerant recovery, is included in replacement quotes.

What warranty do I get on installation?

A 5-year manufacturer warranty on the system plus our own workmanship warranty on the installation itself — ductwork, zones and fittings included.

How disruptive is the installation?

We work through the roof space, so disruption inside is minimal. Vents are cut precisely, floors are protected, and all rubbish and packaging is removed when we leave.

Ducted Air Conditioning Installation by Sydney suburb

Local licensed technicians for ducted air conditioning installation right across Sydney — from the CBD and Eastern Suburbs to the Hills, the Shire, the Northern Beaches and Western Sydney. Pick your suburb for local pricing, availability and job examples.

More air conditioning guides

Get a quote

Free on-site quotes across Sydney — call iNext Air Conditioning on 0426 499 802.