Ducted systems

Ductwork Replacement and Repairs

Damaged, leaking or poorly designed ductwork makes a good ducted system feel like a bad one. We find the problem, then repair or replace the ducts so every room gets the air it needs.

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5.0 from 292 Google reviews

Ductwork

What do ductwork replacement and repair services involve?

We inspect the ducts in your roof, test airflow at each outlet and find where air is being lost or blocked. Then we repair what can be fixed, such as disconnected, torn or kinked ducts, or replace sections or the full duct system where the ducting is damaged, undersized or poorly insulated.

Ductwork is the part of a ducted system most people never see, and it is often the reason a system underperforms. A duct that has come off its fitting can pour cooled air into the roof for years. Undersized ducts make outlets whistle and starve the far rooms. Old, thin insulation lets the roof heat up the air before it reaches the room.

Ductwork repair: reconnecting, resealing and supporting ducts, and replacing damaged lengths
Ductwork replacement: new ducts, sized and laid out for the system and the rooms they serve
Better efficiency: sealed joints and insulated ducting, with an upgrade to R1.5 available

Technician connecting an insulated ducted air conditioning run between roof trusses

Warning signs

What are the signs of ductwork problems?

Rooms that are always too hot or too cold, rising power bills, extra dust, whistling or rattling from the ceiling, weak airflow from some outlets, and a system that runs constantly without catching up. Visible tears, sagging or disconnected ducts in the roof confirm it.

Uneven cooling or heating

Rooms that are always too hot or too cold, whatever the controller says, often have a leaking, crushed or disconnected duct.

High energy bills

Leaky or poorly insulated ducts lose cooled air into the roof, so the system runs longer to hold the temperature.

Poor indoor air quality

Gaps in ducts and joints can draw dust and roof-space air into the system and through the house.

Noisy ductwork

Whistling, rattling or flapping noises point to leaks, loose joints or ducts that are too small for the airflow.

Visible damage

Torn, split, sagging or disconnected ducts, or insulation hanging off, can sometimes be seen from the roof hatch.

Excess dust

More dust than usual around outlets and on furniture can mean the system is pulling in air through a leak.

Reduced airflow

Weak airflow from some outlets suggests a blockage, a kink or a duct that has come off its fitting.

A system that never catches up

If the system runs constantly but struggles to reach temperature, the problem may be in the ducts rather than the unit.

Benefits

What are the benefits of duct repair and replacement?

Sealed, well-sized and insulated ducts deliver the air your system makes to the rooms that need it. You get more even temperatures, lower running costs, cleaner air and a quieter system, and the indoor unit does not have to work as hard to keep up.

Improved energy efficiency

Stopping air loss into the roof means the system reaches temperature sooner and runs less, which lowers power use.

Enhanced comfort

Properly sized and sealed ducts give consistent airflow, with fewer hot and cold spots from room to room.

Better indoor air quality

Sealed ducts stop roof-space dust and insulation fibres being drawn into the air you breathe.

Upgrades and warranty

Which ducting do you use, and how long is it warranted?

Standard R1.0 insulated ducting, with an upgrade to R1.5 insulated ducting made from high-quality polyester. R1.5 loses less heat than standard R1.0 ducting, so rooms cool and heat faster and stay more even. Ductwork we install carries a 10-year warranty.

Good ductwork starts with design. For new systems and full replacements we draw the duct layout on your floor plan, with the zones, airflow and duct sizes for each room, so each room gets the right amount of air and the system runs quietly.

When ducts are replaced, it is a good time to look at zoning and control too. Adding zones, or upgrading to AirTouch 5 with a sensor in each zone, can make a big difference to comfort. Frost Solutions is QBCC licensed (15409367).

Ducted air conditioning design drawn over a house floor plan, showing six zones with kW and airflow per room

Good questions

Frequently asked questions

Can damaged ductwork be repaired, or does it need replacing?

Both are possible. A single disconnected or torn duct can be refitted or replaced on its own. If the ducting is old, crushed in several places, poorly insulated or undersized, replacing the run, or the whole system's ductwork, is usually the better fix.

What is R1.5 ducting?

R1.5 is the insulation rating of the duct. It insulates better than standard R1.0 ducting, so less heat is gained or lost in the roof space. That gives more even temperatures, faster cooling and heating, and less work for the system. We offer it as an upgrade.

Do you warranty new ductwork?

Yes. Ductwork and pipework we install carry a 10-year warranty, alongside our 10-year workmanship guarantee. Warranties apply once the job is paid in full. Warranty details.

Should I replace ducts when I replace my ducted unit?

We check the existing ducts when we quote a replacement. If they are in good condition and suit the new system they may be reused; if not, it is far easier and cheaper to replace them at the same time.

Can new ducting fix rooms that are too hot or too cold?

Often. Uneven rooms usually come down to duct sizing, layout or damage, or a zone motor fault. We test airflow at each outlet to find the cause, then repair, resize or re-run the ducts as needed.

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Rated 5.0 from 292 Google reviews

Every review below is from our Google Business Profile. Read them all on Google.

5.0 from 292 Google reviews checked 13 Nov 2026

★★★★★

Absolutely fantastic experience with Frost Solutions! I recently had a ducted air-conditioning system installed and honestly, from the very first conversation through to the finished installation, the whole process was seamless. ... The installation itself was done to a really high standard, the team worked efficiently and left everything clean and tidy. ... Great people, great communication, great workmanship and a great result.

Grant Google review, about Oct 2026
★★★★★

Couldn't recommend Frost Solutions highly enough. We recently had them install a 16kW Daikin ducted system with 8 outlets, 6 independent zones, AirTouch 5, multiple upgrades and a 5 year service plan. ... Another big positive is that Frost Solutions have their own electrical team as part of the installation. ... the entire experience was seamless.

Jordan Google review, about Sep 2026
★★★★★

Frost Solutions installed ducted air conditioning in my home today and I couldn't be happier. The team were professional, friendly, punctual, and down to earth. ... left the house spotless ... I also really appreciated the follow-up call from the office later in the day to check I was completely satisfied ... They're a local business with local staff, and the value was extremely competitive for the quality of service and workmanship provided.

Bradley Google review, about Nov 2025
★★★★★

Thanks guys For installing my Panasonic 18 kilowatt Ducted air conditioning today. The guys turned up on time and were very polite. They worked hard all day, did a great job and left the house neat and tidy. Also they were $2000 cheaper than the others. :)

Brett Google review, about Nov 2025
★★★★★

A massive thanks to Frost Solutions. We got a 16kw ducted system put in with 7 zones and 9 outlets. Tyrone and the team were super friendly and very professional doing an awesome job, even helping me to keep maximum space in our roof so I could do an attic room. They also decommissioned and removed 2 of our old split systems. Could not recommend them more highly.

Michael Google review, about Nov 2025

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Your comfort, our priority.

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