Low-E Double Glazed Unit
Melbourne and Geelong delivery only — this glass is not available for Sydney delivery yet.
Low-E double glazed units made to your size: clear outer pane, Low-E, Dual Eco Plus or Energy Tech inner pane. Toughened, 12mm argon-filled spacer, instant price.
Double glazing: inner pane options compared
6mm clear toughened + argon gap + 6mm inner pane. Whole glass unit figures.
| Inner pane | U valueinsulation, lower is better | SHGCsolar heat in, lower blocks more heat | Light (VLT)higher is brighter | Price1000 × 1000mm unit, delivered | In short |
|---|---|---|---|---|---|
| Clear | 2.5 | 0.73 | 78% | $394 | Standard double glazing |
| Low-E Clear | 1.6 | 0.63 | 73% | $456 | Warm and bright. Best value |
| EnergyTech Clear | 1.6 | 0.62 | 73% | $524 | Same as Low-E Clear, Viridian brand |
| Dual Eco Plus | 1.4 | 0.55 | 78% | $549 | Better insulation, still very bright |
| Low-E Neutral | 1.8 | 0.45 | 56% | $507 | Balance of light and heat control |
| Low-E Grey | 1.7 | 0.24 | 28% | $485 | Blocks the most solar heat, darker |
| Sunergy Euro Grey | 1.3 | 0.33 | 31% | $505 | Best insulation plus strong heat control |
| Evantage Grey | 1.7 | 0.33 | 29% | $526 | Grey, strong heat control |
| SolTech Grey | 1.6 | 0.28 | 30% | $583 | Grey, strong heat control |
| Grey tint | 2.5 | 0.46 | 39% | $436 | Tint only, no extra insulation |
Low-E vs EnergyTech: what is the difference?
Both are the same kind of glass: a hard-coat (pyrolytic) Low-E coating, and they perform almost the same. EnergyTech is the Viridian brand, made in Australia, with certified performance data that energy ratings and building reports can quote. Low-E is imported unbranded Low-E glass: same job, lower price. Need certified data for your builder or energy assessor? Choose EnergyTech. Otherwise Low-E gives the same result for less.Prices: our online price for one 1000 × 1000mm double glazed unit (6mm toughened + argon + 6mm toughened), delivery included. The calculator gives the price for your size. Performance: supplier data for 6mm toughened / argon / 6mm units. Whole-window figures depend on the frame.
A double glazed unit with a Low-E coated inner pane. The coating reflects room heat back inside in winter and helps keep summer heat out, while the glass stays clear and bright. It is the step up most people should take over clear double glazing.
Which Low-E
Low-E Clear is the best value: U value about 1.6 for a 6mm unit, against 2.5 for clear + clear.
Energy Tech Clear performs almost the same as Low-E Clear (Viridian brand).
Dual Eco Plus insulates best of the clear options (U value about 1.4) and lets in the most light.
For hot west-facing or large north windows, a tinted or solar control unit blocks more sun heat: see our tinted and solar control double glazed units. For any other combination, use the build your own double glazed unit page.
Before you order
A sealed unit cannot be cut, drilled or altered after it is made, so every dimension has to be final. Measure the rebate, not the old glass, and check the unit thickness at the end of each line fits your frame. Tell us which side faces outside: the coated pane goes on the room side.
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Delivery included across Melbourne & Sydney
Delivery across metropolitan Melbourne, inner Geelong and the Sydney region is included in the price on every order, so nothing is added at checkout. Enter your measurements online and the price appears on the screen straight away.
HOW YOUR GLASS IS HANDLED
- All glass meets Australian Standards.
Please check your glass before signing. If anything has been damaged in transit, tell the driver at the point of delivery and we will arrange a remake.
ON DELIVERY DAY
Someone needs to be on site to receive and check the order. Larger and thicker panels can be heavy enough to need two people to move safely. If you are unsure about the weight of your panel, ask us before delivery day.
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