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Energy Efficiency
Energy Efficient Windows Melbourne. Cut Heating & Cooling Bills by Up to 40%
Energy efficient window and door installations across Melbourne suburbs.
Why Choose Double Glazed Energy Efficient Windows?
Low-E Double Glazed Insulation
28mm argon-filled glass units with Low-E coating block heat transfer while letting natural light flood your home.
Thermally Efficient uPVC Frames
uPVC is a natural insulator that eliminates the thermal bridging problems common with aluminium window frames.
Reduced Heating and Cooling Costs
Nu-Eco's double glazed windows cut energy bills by up to 40% for an average Melbourne household.
Certified Thermal Performance
AWA and WERS certified with U-values as low as 1.4 W/m²K, outperforming many triple glazed alternatives.
Our Range of Windows
Our Range of Doors
With a wide variety of customisable styles to select from including learn all about our double glazed doors today.
Save On Power, Maintenance
Here's how Nu-Eco's uPVC windows deliver measurable energy savings for Melbourne homes.
What Makes Our Windows So Energy Efficient?
Nu-Eco energy efficient windows come standard with Low-E coated glass, 28mm argon-filled IGUs with a 20mm spacer, and fully welded uPVC frames that act as a natural thermal break. Our standard specification achieves U-values of 1.4–1.5 W/m²K, with options to push as low as 0.8 W/m²K through upgraded glass configurations.
Every frame is manufactured by the UK’s largest uPVC supplier using the highest-grade profiles and the latest production equipment. The sealed double glazed units also reduce condensation on interior glass surfaces, protecting your walls and surrounds from moisture damage. Available in Awning, Casement, Tilt & Turn and Double Hung styles with a wide range of colour options, you get premium energy performance without compromising on the look or feel of your home.
Why Melbourne Homeowners Choose Nu-Eco
Nu-Eco has over 25 years of experience supplying and installing uPVC double glazed windows across Melbourne. Our products are manufactured by the UK’s largest uPVC supplier and independently tested to Australian Standard AS2047 by a NATA-accredited facility. We service homes, apartments and commercial properties right across metro and regional Victoria.
Based in Dandenong South, our team specialises in helping Melbourne homeowners reduce their energy consumption through high-performance glazing solutions. Every product in our range is AWA and WERS certified, and we work with you to select the right glass specification for your home’s orientation, climate zone and efficiency goals. With over 60 staff and thousands of completed projects across Melbourne, Nu-Eco is the name homeowners trust for genuine energy savings.
How Double Glazing Reduces Your Energy Bills
Upgrading to uPVC double glazed windows makes an immediate difference to your Melbourne home’s energy performance. Our 28mm argon-filled insulated glass units with Low-E coating create a thermal barrier that keeps warmth in during winter and heat out during summer — reducing your heating and cooling bills by up to 40%
The fully welded uPVC frames play an equally important role. Unlike aluminium, which conducts heat rapidly, uPVC is a natural insulator with no thermal bridging. Combined with sealed, airtight construction and no gaps from mechanical joins, Nu-Eco windows achieve certified U-values as low as 1.4 W/m²K — outperforming many triple glazed alternatives in WERS testing. That means less reliance on heaters and air conditioners, lower energy bills year-round, and a smaller carbon footprint for your household.
Custom Manufactured & Professionally Installed
Every Nu-Eco energy efficient window is custom manufactured to your exact measurements and professionally installed by our experienced team. Precision fitting is critical for thermal performance — even small gaps around a frame can undermine the insulation value of the best double glazed unit. Our fully welded construction and tight tolerances ensure airtight results every time.
We handle everything from single room upgrades to whole-home replacements across Melbourne metro and regional Victoria. Whether you’re swapping out draughty old aluminium frames or fitting out a new build to exceed minimum energy ratings, our team manages the job from first measure to final sign-off. Every installation comes with a free measure and quote, and is backed by our product warranty — no subcontractors, no shortcuts.
Frequently Asked Questions
Understanding the technology behind premium double glazed windows and doors.
Melbourne homeowners can save up to 40% on heating and cooling costs by upgrading to Nu-Eco’s uPVC double glazed windows. The sealed argon-filled units and insulating uPVC frames dramatically reduce heat transfer in both summer and winter.
Aluminium is a highly conductive metal that transfers heat rapidly between indoors and outdoors. uPVC is a natural insulator with no thermal bridging, which means your frames aren’t working against your glass — they’re working with it.
U-value measures the rate of heat transfer through a window. The lower the number, the better the insulation. Nu-Eco’s standard range achieves 1.4–1.5 W/m²K, with premium specifications available down to 0.8 W/m²K.
Yes. The same sealed double glazed construction that insulates against heat also blocks external noise by up to 80%. You get a quieter and more comfortable home from a single upgrade.
The inner pane of a double glazed window stays much closer to room temperature than single glazing, which significantly reduces condensation forming on the glass surface — protecting your frames and surrounds from moisture damage.
All Nu-Eco products are independently tested to AS2047 by a NATA-accredited facility and carry AWA and WERS certification. Our UV testing by the Allunga Exposure Laboratory also exceeds international standards.
Our Work Across Melbourne
It's Time to Stop Losing Money Through Old windows & Doors
Get a free measure and quote from Melbourne's uPVC energy efficiency specialists. Certified thermal performance backed by 25+ years of experience.