Old unit decommissioning & removal
Safely recovering refrigerant gas, removing old wall units, and disposing of legacy equipment responsibly.
Fast, seamless wall split system changeovers across Perth. Expert sizing, guaranteed room performance, and on-time installation backed in writing.

Modern upgrades for single-room comfort
When an old wall-mounted air conditioner fails or struggles to keep pace with demand, replacing it quickly and accurately is the top priority. Simply swapping out a unit without evaluating room volume, electrical capacity, and solar heat gain can lead to high running costs and disappointing cooling performance.
Our replacement focus is on delivering tailored changeover solutions using modern, high-efficiency split systems. Every replacement is managed and executed by our qualified technicians who ensure your new unit is positioned neatly, sealed correctly, and operating at peak performance. We provide transparent advice and complete accountability from quote to commissioning. Summer-proof, or your money back.
Complete changeover services
Our qualified in-house technicians handle every aspect of your wall split air conditioner replacement. From decommissioning your old unit safely to installing high-efficiency inverter technology, we ensure a clean, reliable upgrade for your home.
Safely recovering refrigerant gas, removing old wall units, and disposing of legacy equipment responsibly.
Securing new indoor wall heads over existing footprints or repositioning them for superior airflow distribution.
Replacing aged copper pipework and thermal insulation to prevent refrigerant leaks and efficiency loss.
Updating outdoor isolator switches and electrical connections to comply with modern safety standards.
Mounting outdoor condenser units on sturdy wall brackets or heavy-duty ground slabs for stability.
Pressure testing, evacuating pipework, and testing supply air temperatures to verify optimal operation.
Performance backed in writing
Broken down? We'll tell you whether a new wall split unit will actually solve your heating and cooling issues, and we back our advice with real financial accountability.
Before carrying out any wall split system replacement, our qualified technicians check your room layout, wall construction, and electrical supply to ensure a new unit will deliver optimal performance. We back our replacement recommendations with our Room Comfort promise: that room holds the temperature you set, or we return and fix it at our cost.
These guarantees are in addition to your rights under the Australian Consumer Law and do not limit them.
The CrispAir difference
Upgrading your single-room cooling should be straightforward and completely risk-free. Western Australian homeowners choose CrispAir for split system replacements because of our transparent advice and solid promises:
FAQs
A standard wall split replacement usually takes between 2 to 3 hours. Under our On Time, Or We Pay promise, your installation starts on the exact day promised on your quote, or we credit you $100 for every late business day.
Yes. Modern split systems are far more energy-efficient and quiet than older units. Our qualified in-house mechanics will recommend a modern system that fits neatly over your existing wall footprint while offering superior cooling performance.
Under our Room Comfort promise, that room holds the temperature you set, or we rectify it at our cost. If the system still fails to perform to the written standard on your schedule, our 12-Month Test Drive allows you to request a full removal and refund.
All replacement installations are carried out exclusively by CrispAir’s qualified technicians, ensuring complete technical accuracy, cleanliness, and accountability on every job.
In most cases, existing electrical supply cabling is sufficient. However, if you are upgrading to a larger capacity unit, our electrical contractor will evaluate your switchboard and update wiring as needed.
CrispAir Comfort Club
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
We’re here to help
Need help with your wall split system?
Whether your split system needs a quick repair, a hygienic filter clean, or you're looking to install a new unit, we're ready to assist. Send us a quick note and our local team will be in touch shortly.
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