Stay Cool in Summer & Warm in Winter with Heat Pump & Aircon Services

Transform Your Home’s Comfort with Heat Pump & Aircon Systems

Hot summers are a drain on both energy and your wallet. The price of comfort, in-home air conditioning, creates an economically prohibitive spike in utility costs. Alternatively, heat pumps provide an economical and energy-efficient solution to residences across NZ. Comfort Group has installed top-quality heat pumps in Hamilton homes since 1996. We bring our extensive industry experience, and highly-regarded reputation for integrity and environmental responsibility to each project ensuring each client is custom-fitted with the optimal temperature-control system for their properties.

Heat Pump Supply & Installation

We supply and install high quality heat pumps and air conditioning systems for homes and businesses across New Zealand. Our team works with trusted brands to provide energy efficient solutions that deliver year-round comfort. Every heat pump installation is carefully planned, from selecting the right model to positioning indoor and outdoor units for optimal airflow and performance.

How Heat Pumps Work

Heat pump systems comprise two parts. The outdoor unit is called the air handler, while the indoor unit is the heat pump. The system pumps warm air out of the house in the summer, while heat is gathered from outside and pumped indoors during the winter. Even when it’s cold, heat energy can be collected and harnessed. Instead of generating heat, like a heater or air conditioning unit, electric energy is used to move air.

This takes the burden off your air conditioning system while circulating fresh air creates a hypoallergenic environment. Heat pumps reduce irritation from airborne agents such as germs, bacteria, and allergens. Best of all, heat pumps are quiet, discreet, and can be installed virtually anywhere in your Hamilton home – wall, floor, ceiling or within your duct system.

Brands We Work With

Installation, Repairs, & Aftercare You Can Trust

Committed to excellence in service, Comfort Group delivers prompt comprehensive installations, repairs, and aftercare services at competitive prices. Talk to our friendly team about your home, and we’ll suggest a practical and lasting solution. We have service partners available nationwide to address all after-care needs and stand by all our work with a 12-month guarantee. Don’t suffer through another sweltering summer or frigid winter; see how heat pumps can transform your Hamilton home today.

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Determining Heat Pump Size

How to Find the Right Size Heat Pump

Choosing the right size heat pump or air conditioner is essential for maintaining comfort and keeping running costs low. Our technicians assess your home’s layout, insulation, and window orientation to calculate the ideal capacity for your space.

A heat pump that’s too small will struggle to heat or cool effectively, while an oversized unit can waste energy and wear out sooner. We make sure your air conditioning system is perfectly matched to your property for balanced temperature control and reliable efficiency all year round.

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Heat Pump Repair

If your heat pump or air conditioning system isn’t performing as it should, our repair team can help. We diagnose issues quickly and carry out precise, reliable repairs to restore efficiency and comfort. From refrigerant leaks and electrical faults to airflow problems, our qualified technicians have experience working with all major brands. We use genuine replacement parts and ensure every repair meets manufacturer standards, so your heating and cooling system runs smoothly again with minimal downtime.

Heating and Cooling

Modern heat pumps provide both heating and air conditioning in one efficient unit. In winter, they draw warmth from the outside air to heat your home, and in summer, they reverse the process to provide cool, refreshing air. This dual functionality means you can enjoy consistent comfort without the need for separate systems. Whether you need a split system for a single room or a ducted air conditioning setup for the whole house, our experts design solutions that keep you comfortable through every season while keeping energy use to a minimum.

Frequently Asked Questions

How long does it take to install a heat pump?

A straight-forward back-to-back installation (where the indoor and outdoor units sit on opposite sides of the same wall) typically takes around 3 to 4 hours. More complex installations (for example ducted systems, multiple zones or difficult access) may take up to a full day.

How cold is too cold for a heat pump to work?

Modern air-source heat pumps continue to deliver heating even when outdoor temperatures drop. That said, as the outside air gets very cold the system’s efficiency falls and it may need to work harder or require auxiliary support. Some models are rated to function effectively at ambient temperatures as low as around -15°C or even lower in specialist cold-climate variants.

How long should a heat pump last?

With proper installation, sizing and regular maintenance, a typical heat pump has a lifespan of around 10 to 15 years, though some well-maintained units can last longer (20+ years) depending on conditions.

Does a heat pump dry out the air?

Not in the sense of actively dehumidifying like a dedicated dehumidifier. While some heat pump settings (such as “dry mode”) reduce humidity in cooling mode, standard heating operation does not significantly dry out indoor air more than other heating methods. The sensation of dryness is more likely due to naturally lower indoor humidity in colder months.

How many watts is a heat pump?

Domestic heat pump electrical consumption varies depending on size, capacity, installation and usage, but typical figures are in the range of a few kilowatts (kW) when operating. For example, many units draw between 2 kW to 4 kW of electricity during heating mode.