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A well-planned ducted air conditioning installation can change the way your household feels year-round. The system hides in your ceiling, delivers even airflow to every room, and can switch from cooling to heating at the push of a button. Yet many homeowners overlook one crucial step: preparing the house before the technicians arrive. Skipping that preparation often leads to delays, extra charges, or—worse—an installation that doesn’t perform as promised.
This page walks you through each task you should complete before installation day. The advice is direct, practical, and written with Australian homes in mind. By the end, you’ll know exactly how to set up your space so the installers can get in, do the job safely, and leave you with a system that works from day one.
Every reputable installer supplies a written plan or quote that explains:
Take ten quiet minutes to read that document line by line. Circle anything you do not understand. Then phone or email the installer for clarification. That quick call prevents expensive on-site changes later.
Australian ducted systems usually live above the ceiling. For workers to reach that area, they need a manhole or attic hatch large enough to move bulky parts. Two simple checks help:
If roof space is limited—common in older Queenslanders or terrace homes—ask whether an under-floor or multi-split alternative is wiser. Sorting that now is cheaper than discovering the issue on installation morning.
Installers need to cut circular holes for vents and patch cables through wardrobes or linen cupboards. The smoother their path, the quicker the job. In the week before the appointment:
Remember that cool air flows best when vents are not blocked by tall furniture, so this preparation doubles as future airflow protection.
The outdoor unit sheds heat, so it needs good air flow. Choose a level spot near an external wall and run through this short checklist:
If your soil is sandy or the ground slopes, ask whether a concrete plinth or steel frame is included in the quote.
A modern ducted reverse-cycle system can draw 10 kW or more during peak load. That means your electrical switchboard must handle the extra current. Do the following:
Doing this a week ahead avoids a common day-one delay: technicians arriving, spotting an overloaded board, and needing to re-book once an electrician completes an upgrade.
Power tools, open ceilings, and trailing cables are magnets for curious kids and nervous pets. On installation day:
You’ll keep everyone safe and give installers space to concentrate on their work.
Even if you cannot remain on the premises, leave a mobile number with a charged battery. Installers might need fast answers on vent placement or wiring routes. A five-minute phone chat beats down-tools delays that stretch the job into a second day.
If you must leave totally, nominate a neighbour or relative who can make small decisions. Let the technician know who that stand-in is before you head out.
A ceiling saw, rotary hammer, and drop sheets are part of the package. No installer can promise a spotless process, though most will vacuum before leaving. Reduce mess by:
Vacuum again after the team departs to protect sensitive electronics or asthma sufferers.
Before the crew packs up, insist on a short demonstration that covers:
This ten-minute tutorial eliminates first-night confusion and spots any issues while the technicians are still on site.
Professional installers issue several documents:
Scan or photograph each item and store copies in both a cloud folder and a labelled envelope near your switchboard. Future technicians—and your memory—will thank you.
Ducted air conditioning is a long-term investment. Heat loads, salty coastal air, and roof dust can slowly reduce performance. Most manufacturers recommend a professional check at twelve months. Many homeowners forget and blow past that date.
While the installation team is still on site, open your phone calendar and set a reminder for eleven months. That one action preserves efficiency and supports warranty terms.
Use the list below the night before the crew arrives:
Tick every box, and you’re primed for a smooth, single-day installation.
Preparing your home for a ducted air conditioning installation is not complicated, but it does require purposeful effort. By clearing work zones, checking electrical capacity, and setting safety plans for family and pets, you make life easier for the installation crew and protect your investment. The reward is a system that runs efficiently from the start, delivering quiet comfort through scorching summers and cool winter nights.
If you’re ready to book or still have questions about the process, reach out to our team. We’ll review your floor plan, explain zoning options, and help you choose the right capacity for your climate zone. With proper preparation and expert guidance, your new ducted system will serve your household for many years to come.
Most single-storey homes are completed in one day. Larger or two-storey properties may need an extra day for duct routing.
In most Australian suburbs, standard residential installations do not require council permits. Exceptions include heritage-listed buildings and certain strata complexes; check local guidelines.
Light storage is usually fine, but avoid loading boxes directly on top of ductwork or the indoor fan coil.
The electrician can install a sub-board or upgrade the main board. Factor that cost into your overall budget.
Vacuum return-air filters every three months and wash them with warm soapy water twice a year. Replace disposable filters according to manufacturer instructions.
Published: 16 June, 2025
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