We are window and door specialists, creating bespoke solutions for commercial and residential properties.

Circa 1975 – Alcon pioneer Constantinos Markopoulos, in his office in Richmond, Victoria

Today – Our team at work in our office/factory complex in Oakleigh, Victoria


Alcon Windows has been supplying Melbourne with aluminium frame windows, doors and facade systems for almost twenty years. We are a second generation family owned business that has grown significantly since our humble beginnings yet we have always maintained the loyalty and dedication that fuelled our growth over the years.

Window making is in the DNA of the Alcon family and it’s not just the craftsmanship that has been passed down from one generation to another, but also the core values of running a business with the utmost integrity.

We are dedicated to providing each of our customers with the personalised service they’ve come to expect from dealing with us over the years. We pride ourselves on the quality of our products and services but also on the relationships that we build with our customers, our stakeholders and with each other.

Our staffing unit today includes teams of project managers, fabricators, estimators, installers and numerous office personnel including dedicated staff for accounts, administration and marketing.

Our experience and resources allow us to work on a wide range of projects, seeing each one through from the design conception, in-house manufacturing to full installation and completion. We specialise in designing architecturally advanced solutions for difficult or complex spaces with all of our products designed and created in-house at our state of the art factory/office facility in Melbourne’s south east.

Core Values

Alcon Windows is committed to tailoring every project to each client’s needs. We pride ourselves on our family business delivering the highest quality product on time and on budget, using the latest industry techniques.

Project Timelines

Need us to complete the work quickly? We’ll never compromise on quality but we always strive to accommodate tight project timelines and deliver bespoke products on time.


Our windows and doors are made by experienced craftsmen using the highest quality materials. We pride ourselves on our workmanship and the attention to detail that is given to each and every glazing system that leaves our premises. The Alcon brand is known and trusted amongst Melbourne’s most discerning builders.


Alcon Windows practices full adherence to all glass and glazing standards in Australia.  All of Alcon’s products and construction processes meet quality and structural integrity requirements resulting in superior products designed for Australian conditions.


Flawless, functioning door designs, made with the highest quality materials for businesses and home owners.

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Update your business premises with a branded facade system and make the right first impression.

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Customised, quality window designs with aluminium frames for commercial premises and high end residential properties.

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AGUSHI have been contracting Alcon Windows to supply and install all aluminium window systems for 10 years. From a builder’s perspective, the window systems used in a house are the most important element of the build. If a builder is to get a call-back on a project, 99% of the time it will be because of a window leak. Window leaks are almost always a function of incorrect installation. Consequently, we at AGUSHI take no risks and always exclusively use Alcon for our commercial styled aluminium window systems because they have a proven track record in providing a service that is the best in the industry. All their staff are highly skilled and talented at their trade and their project management team offers the best service. Alcon are attuned to working to the exacting standards that we enforce on our contractors. It always seems as though no job is too hard and no challenge is too great.

I have been working with Alcon for 10 + years on many projects and have been satisfied with the company. Alcon have good communication, are professional and most of all standby their good quality of work. There are always issues when it comes to construction and the team are there to assist and work through any issues that may arise in a timely manner. I have NO hesitation in recommending Alcon for any works regarding aluminium windows and alike, whether it is high end, multi residential or apartments.

Alcon equals success and certainty. The team at Alcon have been a key collaborator of ours for over 10 years, and they are a key relationship for our business. We value their ability to deliver always, and ensure a high quality finish and outcome.