Residential
Split System Installation
Supply and install of wall, floor and cassette split systems, sized correctly for your room and orientation — not oversold.
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Sydney · Licensed HVAC Specialists
Air conditioning that just works, all year round.
AirNest installs, repairs and maintains split system and ducted air conditioning for Sydney homes and businesses — fixed-price quotes, our own licensed technicians, and same-day help when it counts.
NSW licensed & fully insured
Same-day response, most suburbs
18+ years servicing Sydney
Comfort range
18°–26°C
Zoned to how you actually live
What we do
Air conditioning & HVAC services across Sydney
From a single split system in a unit to zoned ducted comfort across a whole home, or full HVAC for a commercial fit-out — one team handles installation, repairs and ongoing maintenance.
Residential
Whole-home
Ducted Air Conditioning
Concealed, zoned ducted systems designed around your floor plan, with individual room control and quieter operation.
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Repairs
Air Conditioner Repairs
Fast, accurate diagnostics for all major brands — refrigerant leaks, faulty compressors, error codes and no-cool call-outs.
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Servicing
Preventative Maintenance
Scheduled servicing plans that protect your manufacturer's warranty, keep running costs down, and catch faults early.
View plans
Commercial
Commercial HVAC
Design, installation and maintenance for offices, retail, hospitality and strata buildings, with after-hours options.
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Priority
Emergency Breakdown Service
System down in the middle of a heatwave? Priority same-day callouts on weekdays and Saturday mornings.
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Why Sydney chooses AirNest
Local, licensed, and around long after installation day.
AirNest has been servicing Sydney homes and businesses since 2007. Our technicians are employed directly, not subcontracted, and every job is backed by a written guarantee.
18yrs
Servicing Sydney homes & businesses
14,000+
Installations and repairs completed
4.9/5
Average rating across 392 reviews
92%
Of urgent callouts seen the same day
Fixed-price quotes, before we start
You'll always see the full cost in writing after an on-site assessment — no vague estimates, no surprise call-out fees.
Our own licensed technicians
Every job is carried out by an AirNest employee holding a current ARCtick and NSW mechanical services licence — never a subcontractor.
Genuine same-day response
Real-time scheduling across our Sydney vehicle fleet means most urgent breakdowns are seen within hours, not days.
Workmanship guarantee
Alongside full manufacturer warranty on parts, every install and repair is covered by AirNest's own written workmanship guarantee.
How it works
From first call to a system that just runs.
A straightforward, five-step process designed to remove the guesswork — most residential jobs move from quote to completed install within a week.
01
Book your assessment
Call our team or request a quote online. We'll find a time that works around your day, including evenings for a phone consult.
02
On-site diagnosis
A licensed technician inspects the space, existing wiring or ductwork, and talks through the right system for how you use each room.
03
Fixed-price quote
You'll receive an itemised, fixed-price quote before any work begins — equipment, labour and any electrical work included.
04
Install or repair
Clean, code-compliant work completed by our own technicians, with the site left as tidy as we found it.
05
Aftercare & warranty
Manufacturer warranty plus the AirNest workmanship guarantee, with optional scheduled servicing to keep everything running.
Where we work
Servicing homes & businesses right across Sydney
Our vehicle fleet is based centrally in Alexandria, giving us fast access to every corner of Greater Sydney.
Sydney CBD & Inner City
Eastern Suburbs
Inner West
North Shore
Northern Beaches
Hills District
Western Sydney
South West Sydney
Sutherland Shire
Parramatta
Not sure if we cover your suburb? Call (02) 8880 4471 — if we can't help directly, we'll point you to someone who can.
Reviews
What Sydney customers say
Rated 4.9 out of 5 across 392 verified Google and Word of Mouth reviews.
"Booked online on a 38-degree day and had someone out that same afternoon. Diagnosed a stuck compressor relay and had our ducted system running again before dinner."
"Clean install, tidy team, and they explained the zoning options clearly before quoting — no pressure to buy more than we actually needed."
"Our office air con had been struggling all summer. AirNest found a refrigerant leak in about twenty minutes and had it fixed under our maintenance plan."
Questions
Frequently asked questions
Straight answers to the questions we're asked most before booking.
Most single-room split system installations across Sydney range from roughly $2,200 to $4,500 supplied and installed, depending on the unit's capacity, wall type and how far the piping has to run. AirNest always provides a fixed, itemised quote after an on-site assessment, so there are no surprises on installation day.
Most manufacturers and AIRAH recommend servicing ducted air conditioning at least once every 12 months, ideally before the start of summer. Regular servicing protects your manufacturer's warranty, keeps running costs down, and reduces the chance of a breakdown during a heatwave.
Yes. AirNest technicians are trained across Daikin, Mitsubishi Electric, Fujitsu General, Panasonic, LG and Samsung systems, and we carry parts for most major brands on our service vehicles.
Every AirNest technician holds a current ARCtick refrigerant handling licence and a NSW mechanical services licence. We also carry full public liability insurance, and every job is backed by a written workmanship guarantee.
Yes. AirNest offers priority same-day callouts for breakdowns on weekdays and Saturday mornings, with most urgent jobs attended within a few hours. Call our team directly to check current availability in your suburb.
AirNest services the greater Sydney metropolitan area, including the CBD and Inner City, Eastern Suburbs, Inner West, North Shore, Northern Beaches, Hills District, Western Sydney, South West Sydney, Sutherland Shire and Parramatta.