Expert Refrigeration and air conditioning installs and repairs  |  Servicing Kapiti to Palmerston North
Expert Refrigeration and air conditioning installs and repairs  |  Servicing Kapiti to Palmerston North


Maintain a comfortable temperature whatever the weather with residential heat pump and air conditioning installation from Minus 21 Regrigeration.
Prompt residential heat pump installation
Installation of air conditioners
Professional heat pump repairs
Operating throughout Horowhenua


is available for clients across manawatu, horowhenua and kapiti

Have you moved house and would like to install a heat pump? Would you like to upgrade the heating and/or cooling and require a free quote? Heat pumps are cost-effective to run and keep you warm in winter and cool in summer. If you are unsure of your options, let Minus 21 Refrigeration undertake a site evaluation and offer professional advice about what will work best in your space.

Our experienced technicians are here to help. For installation requests or to book air conditioner maintenance and repairs contact our heating and air conditioning experts today. For business customers, Minus 21 Refrigeration also provides commercial air conditioning installation and commercial refrigeration system installation and maintenance.

Please talk to our technicians about your requirements. We work in Palmerston North through Levin and Otaki to the Kapiti Coast and throughout the wider Manawatu, Horowhenua and Kapiti regions. Please note that Minus 21 Refrigeration only installs air conditioning units in homes and businesses.

key points

About Heat Pump Installation


Yes. Every home is different and our technicians want to ensure the right system is installed for your space. Additionally, we need to identify the best position for your heat pump to be placed in so it performs properly. For an initial chat about the cost of heat pump installation get in touch.

Can you recommend which heat pump or ac unit to get?

Yes. When Minus 21 refrigeration comes to your home or commercial premisses, we will assess the space and recommend the nest one for your requirement. This includes whether to choose a wall-mounted or free-standing unit.

Which heat pump and ac brands do you recommend and why?

Minus 21 Refrigeration predominantly recommends Mitsubishi Heavy Industries along with Mitsubishi Electric heat pumps as these brands are reliable, great quality and are cost-effective to purchase and run.
We can supply other brands as well.


Regularly servicing

your heat pump will keep it performing optimally
After your new heat pump and/or AC unit has been successfully installed, it is important ot maintain it. You can clean the filters yourself, however, a professional service is highly recommended. A service includes:
Cleaning the indoor unit to prevent bacteria from building up on the coil.
Cleaning the filters, vanes and outer covers
Unblocking the condesate drain by flushing it with desinfectant.
Ensuring the electrical terminals, are clear of dirt.
Checking temperatures and refrigerant pressures are running optimally in both heating the colloing modes.
Ensuring the outdoor unit base is level and secure.
Checking flare joints, fittings and electrical connections.
Checking valve caps and tightening if loose.

How can our experienced technicians help?
contact Minus 21 Refrigeration today.

Get in touch

Fill out the form below and we will contact you within 24 hours to discuss your needs and arrange a booking consultation.
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Kapiti Coast to Palmerston North
Working hours:
Monday-Friday, 8am - 5pm
24/7 repair services available
2023 | All Rights Reserved | Designed By