About Us

McNamee Window Systems

We are a family run business located in Castlefinn Co. Donegal. We started operating in May 2016 providing a supply and fit service of UPVC windows and doors and fitting a wide variety of composite doors and since then we have grown from strength to strength.

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.

In our workshop we manufacture bespoke aluminium products servicing the trade sector and the home improvement market. Our products are made to order, expertly manufactured with care and attention to detail and quality.

We provide excellent customer support and regular communication throughout each project and we have an excellent comeback service if required.

We also continue to supply and fit UPVC windows and doors.

Customer satisfaction is at the heart of everything we strive to achieve.