If your system is over 10 years old, smells musty when running, struggles to heat properly, or is costing more to run than it should — it may be time for a professional heat pump replacement.
Older units become inefficient, expensive to run, and unreliable — especially in our colder South Island winters. At ATL Electrical, we specialise in heat pump replacements and upgrades across Christchurch, wider Canterbury, and Reefton on the West Coast. Sustainable solutions installed by qualified electricians and backed by trusted brands.
You might need a heat pump upgrade if:
Your unit is 10+ years old
It’s leaking water or has recurring drain issues
It smells musty when running
It’s loud or rattling
It takes too long to heat or cool
Power bills are creeping up
You want Wi-Fi control but your unit doesn’t support it
You’re renovating and want a smaller, sleeker unit
You’re tired of having multiple indoor units and want a smarter solution
Your warranty has expired
Not sure if you need a repair or a replacement? Our team can assess your system and give honest advice.
Sometimes repairs make sense. But in many cases, replacing an older system can be more cost-effective long-term.
A modern heat pump upgrade can give you:
Better energy efficiency
Quieter operation
Improved air quality
Built-in Wi-Fi control
Better performance in Canterbury and West Coast winters
Lower environmental impact with modern, eco-friendly refrigerants
Manufacturer warranty protection
Lower long-term maintenance costs
If your system is out of warranty and repairs are becoming frequent, replacement often delivers better value.
Replacing doesn’t just mean “like for like.” This is your opportunity to improve how your home feels and functions.
You could upgrade to:
A quieter high wall split system
A floor console that can replace an old fireplace cavity
A multi room heat pump system
(with one outdoor unit, multiple indoor units options)
A fully ducted heat pump system with zone control
A Wi-Fi enabled system you can control from your phone
Add fresh air ventilation like Mitsubishi Electric Lossnay
Many homeowners don’t realise there are better options available than what they originally installed.
We’ll walk you through what’s possible.
Removing an old, faulty or inefficient unit and installing a modern equivalent or improved system.
Improving capacity, layout, control, or efficiency — such as moving from single-room heating to ducted or multi-room systems.
Not sure which category you fall into? That’s what we’re here for.
We don’t just swap units. We assess your space properly to ensure the new system is sized correctly and positioned for maximum efficiency.


Upgrading doesn’t have to mean paying everything upfront.
ATL Electrical offers interest-free finance options through Q Card — making heat pump replacements and upgrades more manageable for Christchurch, Canterbury, and Reefton homeowners.
Ask us about current heat pump deals and specials available!
Still unsure? Let’ s take a look at your current system and give you clear, practical advice.