Our Award winning, energy efficient, high performance...
Treat yourself to the new benchmark of residential windows and doors. Independently rated as the most energy-efficient windows and doors in its class and winner of the HIA Greensmart 'product of the year' award. Dowell ThermaLine® is our signature Future-Proof energy efficient product series.
Used in sustainable and modern net-zero-energy projects, ThermaLine® exudes comfort for the homeowner by regulating exterior weather extremes and resisting those elements (hot or cold) from coming inside. Giving your home a luxurious interior environment that is on another level.
Partially due to the innovation in Aluminium joinery known as ‘thermally broken’ where the Aluminium window or door, contains a minimum of two Aluminium parts (interior and exterior) and structurally married together by a Polyamide insulator.
A symbol of sophistication, Dowell ThermaLine® offers outstanding performance in all climatic conditions and assist in achieving energy rating of 7 stars or better.
See more, feel more and love your home even more with ThermaLine® from Dowell.