10 Practical Ways to Improve Your Home’s Energy Rating in 2026

Rising power bills, unpredictable weather patterns, and growing environmental awareness have pushed Australian homeowners to rethink how their homes perform. In 2026, improving your property’s energy rating is no longer just a compliance goal—it’s a smart financial and lifestyle decision.

A higher rating doesn’t simply reduce electricity costs; it creates a home that feels more comfortable year-round, stays warmer in winter, cooler in summer, and holds greater resale value in an increasingly energy-conscious market.

If your home was built ten years ago, it probably needs some improvements. The good news is that there are several ways you can execute to achieve at least 6 star energy rating for your home. Let’s explore ten practical, achievable ways together to boost your home’s energy performance in 2026.

1. Upgrade Your Insulation for Immediate Impact

Without insulation, heating and cooling systems work extra hard. Up to 40% of heat can escape through the roof in winter, while poorly insulated walls and floors allow unwanted heat gain during summer.

Consider:

• R6.0 ceiling insulation for colder climates

• Wall insulation upgrades during renovations

• Underfloor insulation for homes with suspended timber floors

What many homeowners miss is managing air leaks. Even tiny gaps around ceiling trims or where the roof meets the wall can ruin the effectiveness of insulation. Sealing these areas first makes sure your insulation works as it should.

2. Seal Draughts and Air Leaks

Small cracks around windows, doors, exhaust fans and skirting boards waste energy every day. These tiny gaps are a problem. Sealing draughts is a cheap and smart thing to do. It is one of the small fixes that pays for itself fast.

Install:

• Door seals and weather strips

• Chimney dampers

• Sealant around window frames

• Foam gaskets behind power points

It’s remarkable how much warmer a room feels once uncontrolled airflow is stopped. This step alone can reduce heating demand by up to 25% in older homes.

3. Upgrade to High-Performance Windows

Windows are a good thing and a bad thing at the same time. Windows are great because they let in light and we can see outside, but Windows are also a big problem when it comes to keeping our homes warm.

Using triple glazing for Windows makes a big difference in how well they work. In places, special coatings on Windows called low-emissivity coatings help keep the heat from escaping. In places, windows with solar-control glazing help keep the sun's heat out.

If we cannot replace our Windows, we can still use other things to make them better. We can use glazing or thick curtains that fit well to make our Windows work a little better. This is not as good as getting Windows, but it is still helpful.

4. Invest in Efficient Heating and Cooling Systems

Old ducted systems can be energy-hungry. Reverse-cycle air conditioners with high star ratings now offer exceptional efficiency.

Zoning systems are really useful because they let you heat or cool the rooms that people are using. This means you do not waste energy on rooms. If you get your systems checked regularly, they will always work at their best.

Technology is getting better and better, and now a lot of homes have thermostats. These smart thermostats are great because they figure out when you use your heating and cooling systems the most, and they adjust everything automatically. This helps cut down on waste.

5. Consider a Professional Energy Audit

Do you want to know where to begin with making your home energy efficient? A professional energy rating assessment is a place to start. This assessment gives you an idea of what is going on. You do not have to guess what to do.

Assessors evaluate:

• Insulation levels

• Window performance

• Air leakage

• Heating and cooling systems

• Orientation and shading

Armed with this data, you can prioritise upgrades strategically instead of spending money on changes that offer minimal improvement.

6. Optimise Your Home’s Orientation and Shading

Sunlight can be your greatest asset—or your biggest problem. North-facing windows in Australia capture valuable winter warmth, while west-facing glass often causes overheating in summer.

Adding:

• Adjustable external blinds

• Pergolas with deciduous vines

• Extended eaves

• External awnings

It can significantly reduce cooling loads. Thoughtful shading design balances natural light with thermal comfort, improving both energy performance and liveability.

7. Upgrade to LED Lighting and Smart Controls

Lighting does not use much energy for heating or cooling, but making it better still helps.

Switching to LEDs can make a difference in how much energy lighting uses; it can cut it down by as much as 80%. Using sensors and timers can also help reduce waste, especially in areas like outdoor spaces, hallways or garages that people do not use very often.

Making changes to lighting will not change your energy rating on its own. Lighting upgrades do help a lot when you combine them with other changes to your energy use like lighting upgrades and other measures such, such as lighting upgrades.

8. Improve Hot Water Efficiency

Hot water systems typically account for around 20–25% of household energy use. Older electric storage systems are particularly inefficient.

Consider upgrading to:

• Heat pump hot water systems

• Solar hot water with electric or gas boost

• High-efficiency gas instantaneous systems

Lowering water temperature slightly (while staying within safe limits) and insulating exposed hot water pipes can also reduce energy waste without major expense.

9. Install Solar Panels and Battery Storage

Few upgrades can change your home as much as putting solar panels on your roof. Adding a battery to your system helps you use more of the energy you make, keeping you safe from higher electricity costs. Solar panels alone do not make your home warmer or cooler. They reduce how much energy you need to buy from others, which is good for the environment.

Pairing solar with battery storage maximises the energy you use from your panels. This protects you from rising grid electricity prices. While solar alone may not directly change how warm or cool your home is, it significantly reduces energy demand from external sources. This strengthens your sustainability credentials, with panels and helps you save money.

10. Choose Energy-Efficient Appliances

Household appliances are really important. They play a part in our daily lives. Refrigerators, dishwashers, dryers and televisions are all running every day. They are always on and using energy. Refrigerators, televisions, dishwashers and dryers are things we use all the time. They just keep running and using energy without us thinking about it.

When replacing appliances:

• Look for high star ratings

• Compare annual energy consumption labels

• Avoid oversizing equipment

Even small efficiency improvements compound over years of use, lowering bills and improving performance outcomes.

Final thought

When you make improvements one by one, in a way, the overall result is really strong. Insulation helps to stop heat from moving. Sealing holes prevents air from getting out. Solar power helps to reduce the amount of electricity you use. All these changes together make your home energy rating better, make your home more comfortable and protect you from energy costs.

If you have been thinking about making some upgrades, you should start by checking your home to see what needs to be done, focus on the changes that will make a difference and then take it one step at a time. The result will be a home that's quieter, more comfortable and cheaper to run for a long time.