Windows, Doors, Shopfronts & More...

Aluminium | uPVC | Composite | AluClad

Trusted & Experienced

Over 15 years of experience in small to large scale projects.

Aluminium Specialists

We manufacture our own Aluminum products.

Quality Guaranteed

The best materials on the market with excellent workmanship.

Competitive Pricing

Open, transparent and fair pricing structure. No hidden costs!

Get in Touch!

Talk to us about your project today! 


+353 (0)87 153 7984


Knockawer, Castelfinn, Co. Donegal

Our Product Range

We offer a wide array of products in Aluminium, uPVC, Composite and AluClad. Specialising in Aluminium, we manufacture our own product in our purpose-built factory, allowing us to create premium Aluminium products to your unique requirements. 

Who We Are...

Window Systems...

We are a family run business located in Castlefinn Co. Donegal.  In 2020, we carried out a major expansion of our business, investing in specialised machinery which to enable us to manufacture our own aluminium products in our purpose-built workshop.


Projects Completed


Years of Experince

Modern House Exterior

A Rated & Passive House Solutions

Our Products are Energy-Efficient and A-Rated Systems, not only better for the environment but also more cost-efficient for the homeowner or business. We can also supply premium products for Passive House projects. 

Talk to us!

We’d be happy to discuss your project to provide you with more information on our products and services. ..

Call us for consultation

+353 (0)87 153 7984