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10-Star Energy Rated, Highly-Secure & Award-Winning

UPVC Double Glazed Windows

Browse our range of double glazed windows.

UPVC Double Glazed Doors

Browse our range of double glazed doors.

Why choose Ecostar?

Over 53,000 Installations

Successful double glazing installations since 1979.

10-Year Guarantee

Industry leading guarantee, including the workmanship.

Only Registered Installer

Within greater Melbourne with registered building certification (DB-L 45684 & CDB-L 49461) for double glazing.

No Subcontractors

Quality & Independently Audited installations by Ecostar’s directly employed carpenters.

Ecostar is the most trusted Double Glazing manufacturer in Victoria

Established in 1979, Ecostar was always dedicated to providing the highest quality product available in the market. 40 years on Ecostar still provides the same award winning quality and service. At Ecostar our staff are dedicated to continue with tradition and provide the only complete Manufacture, Replacement and Guaranteed Double Glazing installation service in Victoria.

Customers can confidently choose Ecostar knowing that their investment is going directly into the advancement of new products and services here in Victoria. Ecostar are the only company in Victoria that offer a “Certified UV Stabilised” product that was created using Victoria’s harsh climate as its model. 

Customers are always surprised to know that everything, even UV stabilisation is guaranteed by Ecostar, and never hidden behind a “Manufactures Guarantee” or a “[Multiple] backed guarantee”. At Ecostar we understand that there is no consumer confidence in a guarantee that is held all the way over in Europe or in multiple different countries from which components are sourced. 

With a market full of post-consumer European products Ecostar stands alone as the only suitable long term solution for UPVC Double Glazing in Victoria. Customers & our employees can sleep easy knowing their investment cost of double glazed windows is safe, with a company that cares about the future of your home and the environment.

 UPVC Features


Melbourne’s hot summers and cold winters are no match for Ecostar’s European designed and manufactured ‘hot country profile’ UPVC double glazed windows and doors. These are the double glazed windows Australia needs to combat our harsh climate!

Warm in winter


Warm in winter

Retains your home’s heat.

Cool in summer


Cool in summer

Deflects outside heat.

Energy efficient


Energy efficient

Exceeds 6-star energy rating. 1.0 U-value (lowest certified) BFRC/WERS energy efficiency.




UPVC can be recycled 350 times.




AS 2047 AS4420 AS1288.




Reduces external noise by up to 90%.




UK police approved, 6 point window locking system, 9 point door locking system.




Maintenance-free. No solar degradation.

Kerb appeal


Kerb appeal

Increase the value of your home.

Rated to withstand the elements

Our UPVC windows and doors are built to withstand salt + erosion, and nearly everything else Australia's harsh climate can throw at them.



Ecostar holds all major Australian and European quality accreditations including Victorian Building Authority Registered Building Practioner, Australian Glass and Window Association, British Standard Institute, Secured by Design, Hot Country Profile, Window Energy Rating, Housing Industry Association, Neighbourhood Watch and BFRC energy rating (A++).


The Ecostar Group sets Industry Record with its 9th Award in a row

News & Updates

August 28, 2021

Up to 27%-OFF Across All Products + Spread Payments Over 10 Years

Act Quickly – Offer must end September 30!

Low deposit, tailored interest-free payment plans also available*

How about tailored interest-free payment plans?*



June 1, 2021

Ecostar Staff & Loyal Customers Help Raising Almost $1million For The Royal Children’s Hospital

We are delighted to announce that collectively the Me and UooUoo initiative raised almost $1million at a time when charity donations are hard to come by.

Read more