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Southern Highlands, New South Wales

Heating and cooling in the Southern HighlandsA heating district with mild summers.

An installer for Southern Highlands

Licence-checked installers in Southern Highlands who specialise in your kind of job see it, and the one who takes it calls you to quote.

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The Southern Highlands is heating country first. Bureau of Meteorology averages at Bowral put the July mean minimum at 2.1 degrees, and frost can turn up even in summer. Summers are mild, with a January mean maximum of 25.5 degrees, so judge any new system on its heating before its cooling.

What's different in the Highlands

High, cold and frosty

The Bowral (Parry Drive) station sits 690 m above sea level. Its 1961 to 2015 averages give a July mean minimum of 2.1 degrees. Frost is common through winter and can even occur in summer, and the lowest reading on record is minus 11.2 degrees.

Mild summers, with the odd scorcher

January's mean maximum at Bowral is 25.5 degrees, with afternoon humidity of 57%. The record high is still 40.0 degrees, so cooling isn't optional for every home.

Zone 6 on paper, cold in practice

On the Australian Building Codes Board's 2019 map, the Wingecarribee council area is climate zone 6 (mild temperate), while Goulburn Mulwaree next door is zone 7. Bowral's winter nights are a better guide to sizing than the zone's name.

Almost all houses

At the 2021 Census, 90.4% of occupied homes in Wingecarribee were separate houses and only 2.3% flats or apartments. 44.6% were owned outright, and 10.0% of private dwellings were empty on census night.

Gas and electricity

Endeavour Energy's network powers the Southern Highlands, and Jemena names the region among those where its gas network serves regional centres. So in the larger towns, mains gas may be one of your options.

The heating and cooling jobs that suit the Highlands

Reverse cycle heating. A reverse cycle split or ducted system heats and cools from one unit, which suits a district where winter is the main event. With Bowral's July nights averaging 2.1 degrees, the heating capacity at 2 degrees on the energy label tells you more than the headline kW.

Whole-house heating. With nine in ten homes detached, ducted heating is worth weighing, whether that's gas ducted or ducted reverse cycle.

Gas heater safety. If you run gas heating, a licensed gasfitter should service it at least every two years, the interval Energy Safe Victoria and the Better Health Channel give. Our gas heater service page explains the carbon monoxide check.

Cooling, the smaller job. With a 25.5 degree January average, you may only need cooling in a living area and a bedroom or two. At 57% January humidity, evaporative cooling is less of a natural fit than in drier places: Seeley says it generally performs best in hot, dry climates.

NSW rules and discounts that apply here

Air conditioning and refrigeration work in NSW needs a licence or certificate, and that includes the associated wiring. Some licences carry a condition that excludes the electrical side, so ask who's doing it. Service NSW's licence check searches by name, licence number, ABN or location.

Southern Highlands households may be able to get the NSW Energy Savings Scheme's upfront discount on an energy efficient air conditioner, depending on whether local installers offer it. It comes through an Accredited Certificate Provider that works independently of the NSW Government, and the nomination form has to be signed before installation. Gas space heaters installed from 1 July 2026 get no ESS incentive. Our ESS guide has the rest.

What we'd do

Where we'd start

We'd choose for winter. A reverse cycle system with strong heating at 2 degrees, sized from a heat load for the rooms you use on a frosty evening, will do most of the work in a Highlands home. If an existing gas heater still runs well, we'd keep it serviced while the electric option is quoted. Send us the job and licence-checked local installers who specialise in that kind of work will see it. Your contact details go to the one who takes it, and if no one in the Highlands has taken it after 48 hours, installers elsewhere in NSW may see it too.

What this work looks like

Photos from real jobs in Melbourne, to show what the work looks like. They aren't from an installer near you.

Fitting a split system's indoor unit onto its wall plate
Fitting a split system's indoor unit onto its wall plate. A job in Melbourne.
Underfloor heating pipe laid on insulation panels
Underfloor heating pipe laid on insulation panels. A job in Melbourne.
A gas ducted heater with its flue, beside a freshly dug path
A gas ducted heater with its flue, beside a freshly dug path. Sep 2019. A job in Melbourne.

More job photos

Questions people ask

Is reverse cycle enough heating for a Bowral winter?
It can be, if it's sized for heating. Bowral's July mean minimum is 2.1 degrees, so check the heating capacity at 2 degrees on the label. The ACT Government's buyers guide, written for nearby Canberra's winters, says good systems work even at minus 10 degrees.
Can I get a NSW discount on a new gas heater?
Not through the ESS. Activities that install or replace a gas space heater with an implementation date on or after 1 July 2026 aren't eligible.
Is the ESS discount automatic?
No. The installer has to partner with an Accredited Certificate Provider and give you a nomination form to sign before the install begins. Energy NSW says you won't be reimbursed for work already done.
How do I check an installer's licence in NSW?
Use Service NSW's licence check, which searches by name, licence number, ABN or location. Our licence guide covers the refrigerant licence too.

Ready for the right installer to take a look in Southern Highlands?

Your postcode and three quick questions. Licence-checked local installers who specialise in your kind of job see it, and the one who takes it gets in touch to quote.

Free for you. Installers pay us for each job we pass on.

Read next

  1. 01Heating and cooling in New South WalesNSW air conditioning licences, the Service NSW check, the ESS discount and strata approval.
  2. 02NSW Energy Savings SchemeHow the ESS discount works on a new or replacement air conditioner, and what's left out.
  3. 03Reverse cycle air conditioningHow reverse cycle heats and cools, which type suits your home, and what to check for winter.
  4. 04Gas heater serviceHow often to service a gas heater, the warning signs, and who's licensed to do it.
  5. 05Ducted heatingGas ducted or ducted reverse cycle: how they compare, the gas rules, and what a good install covers.
  6. 06How to check an installer's licenceRun the ARCtick check, read RAC01 and RSS03, and check the state licence too.

Where this information comes from

We don't publish prices. Every home is different, so an installer's written quote is the only real number. How we write and check these pages.

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