Heating, cooling and ventilation for homes and businesses across Auckland and Waikato — designed around your property, for both retrofit and new builds.
Delta Air supplies and installs efficient heating and cooling for bedrooms, living rooms, open-plan spaces, offices and other individual areas. We help you choose the right heat pump based on the size and layout of the space, insulation, glazing, ceiling height, location and how the room is actually used. We specialise in both retrofit heat pump installations and new-build projects.
One indoor unit paired with one outdoor unit, providing both heating and cooling. The most popular way to condition individual rooms and open-plan areas.
Ideal for
Benefits
A lower-mounted indoor unit for situations where a high-wall unit isn't suitable, or where you simply prefer heat delivered at floor level.
Works well
Benefits
A standard electric heater creates heat directly from electricity. A heat pump works differently — it transfers heat from one place to another. Because of that, a properly selected heat pump can generally provide significantly more efficient room heating than a standard resistance heater, with the added benefit of cooling in summer.
Adding a heat pump to an existing home, or replacing an older system, takes more than picking a unit. We assess existing refrigerant pipework, drainage, electrical supply, outdoor unit location, wall construction, existing penetrations, indoor unit position, airflow and service access — then keep the finished installation clean and tidy.
For new homes we work with you or your builder before the internal walls and ceilings go up, planning indoor and outdoor unit positions, refrigerant pipework, drainage, HVAC electrical supply, isolators and future servicing access. Early planning makes for a much cleaner finished installation.
Our registered electrician completes the electrical work associated with the HVAC installation — dedicated circuits, isolators and associated switchboard work where required.
Heating and cooling throughout the home without a wall unit in every room. A central indoor unit sits in the ceiling space, with conditioned air distributed through discreet ceiling or wall outlets. We design ducted systems for both retrofit installations and new-build projects.
Heat or cool multiple rooms from one central HVAC system.
Most equipment is hidden in the ceiling space — only outlets, the return-air grille and controls are visible.
Divide the system into zones so you control which areas receive heating or cooling.
Wall controllers, room sensors, Wi-Fi/app control, zone control and smart zoning platforms on selected systems.
The main indoor unit is generally positioned away from normal living areas.
Whole-home heating and cooling without a high-wall unit in every room.
A ducted system doesn't have to go in during construction. Where the property allows, we design and retrofit ducted heating and cooling into an existing home — assessing roof-space access, indoor unit location, duct routes, supply outlets, return-air position, zones, controller and sensor positions, outdoor unit position, condensate drainage, HVAC electrical supply and future service access.
The system is designed around your property, rather than forcing a standard layout into every home.
We work from the building plans before construction reaches final fit-off. Early HVAC planning coordinates duct routes, ceiling outlets, return-air grilles, zone dampers, controllers, room sensors, indoor unit location, access panels, outdoor unit position, condensate drainage and electrical requirements — for a more integrated, professional result.
A practical option when several rooms need heating and cooling but a fully ducted system isn't suitable. Depending on the equipment, multiple indoor units run from one outdoor system — independent comfort in several rooms, with fewer outdoor units around the property.
We won't default to a multi-room system just because several rooms need heating. We look at the property and compare individual single-split systems, multi-room systems and ducted heating and cooling. The right answer depends on home layout, number of rooms, roof-space availability, outdoor-unit space, your comfort expectations, budget and control requirements.
Heating and cooling are only part of a comfortable indoor environment. A properly designed ventilation system introduces fresh, filtered air, improves airflow and helps manage excess moisture inside the home — for existing homes and new builds alike.
The right ventilation solution depends on construction, insulation, existing moisture conditions, roof-space conditions, window performance, occupancy, how the home is heated and any existing extraction. We assess the home before recommending a final solution.
Existing homes may suit ventilation installed through available roof or ceiling spaces. We assess roof access, duct routes, outlet positions, intake locations, existing extraction and electrical requirements.
Ventilation can be considered at the early design stage, allowing better planning of duct routes, supply outlets, extract points, equipment location, external vents, electrical supply and future servicing access.
Our registered electrician completes the electrical work associated with the HVAC and ventilation equipment where required.
Modern systems do far more than turn on and off. We integrate zoning, smart controllers, room sensors and Wi-Fi control — with ducted systems and selected high-wall heat pumps.
Smart zoning for compatible ducted systems.
Integrated control and zoning for compatible Daikin ducted systems.
Not just for ducted — selected high-wall heat pumps too.
A zoned system lets different parts of the home be controlled independently — rather than conditioning every room whenever the system runs. Motorised zone dampers control the airflow delivered to each area: living and dining, kitchen, bedrooms, master bedroom, upstairs, downstairs, home office or guest rooms.
Selected zoning systems use individual room sensors, so the system receives temperature information from different areas rather than relying on one central controller. The level of individual room control available depends on the HVAC system and zoning platform selected.
More zones doesn't automatically mean a better system. We design the zone layout around how your home is actually used — a day zone for living, dining and kitchen; night zones for bedrooms; a separate master zone; and occasional-use areas like a guest room or office. Good zoning makes the system easier to use while improving comfort.
HVAC solutions for offices, retail spaces, commercial buildings and other business environments — new installations, equipment replacement, system upgrades, ventilation and ongoing support.
Many commercial projects involve replacing or upgrading existing equipment. We assess the existing system, required capacity, equipment positioning, pipework, ductwork, electrical and control requirements, access and serviceability — for a practical solution suited to how the building is actually used.
For new builds and larger renovations we coordinate HVAC with the wider construction project — equipment locations, ductwork, pipework, ventilation, controls, electrical requirements, commissioning and future maintenance access.
Regular servicing helps keep heating, cooling and ventilation equipment operating correctly, and can identify potential problems before they become larger failures. We service residential and commercial HVAC equipment.
High-wall heat pumps, floor consoles, multi-room systems, ducted systems, selected ventilation systems and associated controls.
For suitable commercial sites we provide scheduled servicing, equipment inspection, filter maintenance, drainage checks, performance checks, fault assessment and maintenance reporting where required.
Tell us what you need and we'll come out, look at the job properly and give you a fixed price.