Cavity Wall Insulation Sydney
Keep Your Home Comfortable All Year Round
Is your home too cold in winter and too hot in summer? Are you tired of skyrocketing energy bills? If so, include options to reduce energy costs. Cavity wall insulation could be the solution you need. At Insulation Installers Sydney, we specialise in high-quality cavity wall insulation in Sydney, helping homeowners like you improve comfort, reduce heating and cooling costs, and boost energy efficiency.


Why Cavity Wall Insulation Matters
Many Sydney homes, especially older ones, have brick cavity walls that aren’t insulated. That means heat escapes in winter and enters in summer, making your home uncomfortable and expensive to run. Properly installed insulation in these cavities stops this, helping maintain stable indoor temperatures.
Signs Your Home Needs Cavity Wall Insulation
- Your home feels cold in winter, even with the heating on
- Summer heat makes your rooms unbearably hot
- High heating and cooling costs
- You feel draughts near walls
- Condensation or damp patches on internal walls
Installing cavity wall insulation can make a massive difference if any sounds familiar.
The Benefits of Cavity Wall Insulation
✔ Lower Energy Bills
A well-insulated home uses less heating and cooling, slashing your power costs.
✔ Improved Comfort
Say goodbye to extreme temperatures inside your home.
✔ Reduced Noise
Thermal and acoustic insulation helps block outside sounds, making your home quieter.
✔ Eco-Friendly insulation solution
Less energy use means a smaller carbon footprint.
✔ Increased Property Value
A well-insulated home is more attractive to buyers.
✔ Prevents Moisture Issues
Proper insulation keeps condensation and damp problems at bay.
Our Insulation Services in Sydney
At Insulation Installers Sydney, we provide expert insulation installation services for all types of homes, including:
1. Cavity Wall Insulation for Existing Homes
We specialise in retrofit cavity wall insulation to improve thermal performance. We can add insulation to homes that weren’t originally built with it. Our insulation is injected into the cavity through small holes drilled into the external wall. Once filled, we seal the holes, leaving your home looking untouched but significantly more energy-efficient.


2. New Build Cavity Wall Insulation
If you’re building a new home, we’ll ensure the walls are insulated before construction. New cavity wall insulation is essential for meeting modern building regulations and achieving energy efficiency.
3. Cavity Wall Insulation Removal
If you have poorly installed insulation, it may be causing damp or thermal bridging issues. We provide safe and effective removal of existing wall materials, ensuring your walls are in top condition before installing insulation. New insulation material.


4. Other Insulation Services
We don’t just stop at wall insulation in Sydney – we also install polystyrene insulation:
- Roof insulation
- Ceiling and wall insulation
- Underfloor insulation
- Blow-in insulation
What Type of Cavity Wall Insulation Do We Use?
Different types of insulation suit different homes. We use:
✔ Spray Foam Insulation
Expands to fill gaps, providing excellent thermal resistance and an airtight seal.
✔ Insulation Batts
Perfect for brick veneer and double brick walls.
✔ Blown-in Insulation
Ideal for retrofitting wall insulation in existing homes.
Are you unsure which insulation is best for your home?
Our insulation specialists will assess your property and recommend the best option.
How Is Cavity Wall Insulation Installed?
Assessment
We check the age of your home, wall type, and existing insulation.
Drilling Access Points
Small holes are drilled into the brick cavity wall.
Insulation Is Installed
We pump the insulation into the cavity, ensuring complete coverage.
Sealing the Holes
We restore the external wall to its original look.
Final Inspection
We check for gaps or issues, guaranteeing effective insulation.
How Long Does It Take?
Most installation services in Sydney take just a day, depending on the size of your home. We work quickly and efficiently with minimal disruption.
How Much Does It Cost?
The cost varies based on:
- The size of your home
- The type of cavity wall insulation used
- Whether insulation removal is needed to prevent heat loss.
We offer ceiling insulation and other solutions. We provide free quotes with no obligation, so you’ll know exactly what to expect before we begin.

Why Choose Insulation Installers Sydney?
✅ Experienced Insulation Experts
We’ve been insulating Sydney homes for years.
✅ Quality Materials
We only use top-tier thermal and acoustic insulation products.
✅ Cavity Insulation Guarantee
A warranty backs our work for peace of mind.
✅ Fast, Professional Service
We work efficiently with minimal mess.
✅ Affordable Pricing
No hidden fees, just honest pricing.
✅ Local Sydney Team
We understand Sydney’s climate and housing styles and offer tailored insulation solutions.
FAQs About Cavity Wall Insulation in Sydney
Q: Will cavity wall insulation cause damp problems?
A: No – when correctly installed by professionals, insulation prevents dampness by reducing condensation.
Q: Can I insulate double brick walls?
A: Yes! We have solutions for double brick cavity walls, veneer walls, and other wall types.
Q: How long does cavity wall insulation last?
How long does cavity wall insulation last? A: High-quality insulation lasts decades without needing replacement.
Q: Is wall insulation worth it for older homes?
A: A certified installer will ensure proper installation. Absolutely! Many older Sydney homes lack insulation, making them inefficient and costly to heat or cool.
Q: How do I know if I have cavity walls?
A: A sign of cavity walls is if your home has two brick layers with a small gap between them. If unsure, we can check for you.
Book Your Free Quote Today!
Don’t put up with uncomfortable temperatures and high energy bills any longer. Let Insulation Installers Sydney transform your home with cavity wall insulation in Sydney.
Call us today or complete our online form to book a free quote. Your home’s comfort starts here with our thermal performance expertise!
