Can I reuse the old bracket and pipework when replacing a system?

Sometimes, if it's in good condition and matches the new unit's specifications, but many installers recommend new refrigerant lines to avoid contamination issues.

Do I need council approval to replace an aircon unit?

Generally no for a like-for-like replacement, but check with your installer if the outdoor unit position or ducted system layout is changing.

What happens to my old unit when it's replaced?

Most installers remove and dispose of the old unit as part of the job, including safe handling of refrigerant gas.

New AC install vs replacing an old system: which do you need

A brand new installation into a room or building that has never had air conditioning is a different job to ripping out a dead 15-year-old split system and putting in a replacement. Both fall under installation work, but the scope, wiring checks and disposal of old equipment change the job significantly.

New install: no existing unit, may need new circuit wiring, bracket points and refrigerant line runs from scratch
Replacement: old unit removed and disposed of, existing wiring and pipework often reused if compatible, sometimes needs upsizing if the old system was undersized

Telling the contractor which situation you're in when you call for a quote means a more accurate price the first time.

What it costs

Replacement jobs can sometimes be cheaper if existing electrical wiring and refrigerant lines are reusable, but a like-for-like swap isn't guaranteed if the new unit has different requirements. A ground-up new install into a room with no existing infrastructure typically involves more labour for wiring and mounting.

Top 3 by our score

Ranked from our published scoring of public Google reviews for new ac installation.

1. Web X Electricians Perth
5.0★ · 335 reviews

95
2. J & C Electrical Contracting
5.0★ · 569 reviews

94
3. Alby Electrical & Air
4.9★ · 167 reviews

92

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FAQ

Can I reuse the old bracket and pipework when replacing a system?: Sometimes, if it's in good condition and matches the new unit's specifications, but many installers recommend new refrigerant lines to avoid contamination issues.
Do I need council approval to replace an aircon unit?: Generally no for a like-for-like replacement, but check with your installer if the outdoor unit position or ducted system layout is changing.
What happens to my old unit when it's replaced?: Most installers remove and dispose of the old unit as part of the job, including safe handling of refrigerant gas.

Enquiries submitted through our contact forms may be passed to partner providers who can do the work, and we may receive a referral fee. Our rankings and scores are based on our published methodology only and are never influenced by referral fees.