Paired indoor & outdoor unit replacements
Upgrading both indoor fan coils and outdoor compressors together to ensure modern inverter compatibility and whisper-quiet performance.
Ducted air conditioning replacements Perth
Seamless ducted changeovers tailored for Perth homes. Honest advice, guaranteed performance, and on-time installation backed in writing.
Modern upgrades for whole-home comfort
Expert ducted air conditioning replacements in Perth
When an aging outdoor compressor dies or your old system struggles to keep pace, you need a reliable replacement solution without guesswork. Simply swapping out a unit without evaluating your existing ductwork is a gamble that can lead to inefficient cooling, high power bills, and poor airflow.
At CrispAir, we deliver transparent, tailored advice to ensure your new high-efficiency system integrates cleanly with your home’s layout. Every changeover is managed and completed by our qualified technicians, giving you complete accountability and long-term peace of mind. Summer-proof, or your money back.
Outdated or failing ducted unit? Get a fast replacement quote today.
Replacement & changeover solutions
What our ducted replacement service covers
Our qualified in-house technicians handle every stage of your ducted system replacement across Perth homes. Whether you are changing over an outdated reverse cycle unit or converting an old evaporative system, we deliver complete solutions built around your home's unique layout.
Flexible zone damper & motor upgrades
Replacing worn motorised zone dampers and barrel valves to restore precise, individual room airflow control.
Evaporative to reverse cycle changeovers
Decommissioning old evaporative coolers, patching roofs, and installing modern ducted systems.
Touchscreen controller upgrades
Replacing outdated wall thermostats with smart, Wi-Fi-enabled climate control systems.
Ductwork inspection & section upgrades
Replacing crushed, leaking, or undersized ducting to ensure maximum airflow.
Electrical & mains connection updates
Upgrading electrical supply and safety switches to suit modern equipment standards.
Honest pre-quote assessment
The Right Fix guarantee
Broken down? We'll tell you whether a new unit will actually fix it, and we guarantee your installation starts on the day promised, or we pay you $100 for every business day we're late.
The biggest concern with a unit changeover is spending thousands of dollars on a new machine only to find your old ducting cannot distribute the air properly. Before issuing any changeover quote, our qualified in-house technicians inspect your roof space, ceiling outlets, and return grilles to provide a written Duct Verdict:
- PASS: Your existing ductwork is in sound condition and fully capable of supporting a high-efficiency replacement unit with full guarantee coverage.
- CONDITIONAL: A new unit will restore cooling to your living spaces, but specific duct limitations in named rooms will be documented clearly before purchase.
- DECLINE: Sometimes we'll tell you we won't do the job. If your existing ducts are collapsed, severely undersized, or degraded, we will show you photo evidence and explain why a unit-only changeover won't cool your home.
These guarantees are in addition to your rights under the Australian Consumer Law and do not limit them.
The CrispAir difference
Why choose CrispAir for your ducted unit replacement?
Replacing a major home appliance should come with absolute certainty. Homeowners across Western Australia trust CrispAir for unit replacements because of our commitment to transparency and service:
- Qualified, dedicated workforce: Every changeover is managed and executed by our qualified technicians who take genuine pride in their craft.
- Proof before you purchase: Our written Duct Verdict gives you photo evidence of your ductwork's true state so you never waste money on a unit that cannot perform.
- On Time, Or We Pay Guarantee: Your installation starts on the day promised, or we credit you $100 for every business day we're late, automatically (up to $1,000).
- Stronger workmanship coverage: Most Perth installers publish 2 years of installation warranty; ours is 5 years standard. That coverage extends to 10 years for active Comfort Club members.
- Risk-free 12-Month Test Drive: Experience your new replacement unit through an entire Perth summer heatwave. If we have not delivered what we put in writing on your schedule, we will remove the system and refund every cent.
FAQs
Common questions about ducted air conditioning replacements
Can I keep my existing ceiling ductwork when replacing my air conditioner?
Typically yes, if your old system was designed correctly. However either due to poor original design or modern componentry now allows for more efficient duct layout and zoning that wasn’t possible years ago. Our technicians inspect your ductwork prior to quoting and provide a written Duct Verdict (Pass, Conditional, or Decline) with photo evidence so you know exactly what to expect.
How do you guarantee your installation start dates?
Under our On Time, Or We Pay promise, your installation starts on the exact day promised on your quote. If our team is delayed, we credit you $100 for every business day we're late, up to $1,000.
Why would CrispAir decline a unit replacement job?
If your existing ducting is structurally damaged, undersized, or leaking heavily, installing a modern compressor will not fix your cooling problems. We refuse to take payment for a changeover that we know will leave you sweating in February. In these cases, we will only recommend a full replacement of both the AC unit as well as the ductwork and zoning.
How do you determine the right size replacement unit for my home?
Our qualified technicians perform detailed heat-load calculations based on your home’s layout, roof insulation, window orientation, and room dimensions. We size the system to comfortably carry your day zones or night zones, where you actually spend your time, ensuring quiet, efficient performance without wasting energy.
What happens if my replacement unit does not perform as promised?
Under our 12-Month Test Drive guarantee, if our installed replacement system fails to deliver the performance standards promised in writing on your signed schedule, we will return to rectify it at our cost, or remove the unit and provide
CrispAir comfort club
Smarter protection for your home’s climate
Don't wait for a breakdown in the middle of a heatwave. Protect your investment with proactive annual maintenance, priority booking, and exclusive discounts every season.
We’re here to help
Is your old ducted unit struggling to cool your home or facing costly breakdowns?
Upgrade to a modern, high-efficiency system backed by CrispAir’s Right Fix Guarantee - and get cooling again within 5 business days or we pay you $100 a day. Speak with our local Perth specialists for an honest pre-quote assessment and a tailored replacement plan. Fill out the form below to get started.
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