Every Fairco window and door begins life in our production facility in County Antrim. It is where raw profiles become finished products, where design specifications are translated into precise, measurable outcomes, and where quality is built in rather than inspected afterwards. For over 35 years, manufacturing in-house has been central to how Fairco operates, and it remains the single biggest reason we can deliver consistent performance across almost 40,000 homes.
Why in-house manufacturing matters
Many window and door companies source finished products from third-party fabricators. Fairco does not. By controlling the entire production process under one roof, we maintain direct oversight of every stage, from material selection and profile cutting through to glazing, hardware fitting, and final quality checks.
This matters because a window is not a single component. It is a system. The frame, glazing, seals, hardware, and their assembly all determine how the finished product performs in your home. When one company is responsible for all of those elements, there is nowhere for standards to slip between handoffs. What is designed and measured is exactly what is produced.
Materials and precision
Fairco uses the highest-grade uPVC available for domestic applications. Profiles are cut, reinforced, and welded using CNC-controlled machinery to ensure tight tolerances and consistent frame geometry across every unit. This precision directly affects how well seals compress, how smoothly hardware operates, and how effectively the window performs thermally over its lifetime.
Glazing units are specified to match the performance requirements of each project, whether that is high-performance double glazing or triple glazing for maximum thermal efficiency. Hardware is selected and fitted to complement the frame and sash weight, ensuring smooth, reliable operation and PAS 24:2022 certified security across the full range.
From the factory to your home
The advantage of in-house manufacturing extends beyond the factory floor. Because Fairco also employs its own survey and installation teams, there is a single chain of responsibility from the first consultation through to the finished installation. Your windows and doors are surveyed by our team, built to those exact measurements in Antrim, and installed by professionals who understand the product because they work with it every day.
This integrated approach, covering design, manufacture, and installation, is what separates Fairco from companies that assemble or resell products made elsewhere. It is also what allows us to stand behind every product with a 10-year manufacturer’s guarantee.
See it for yourself
Our Santry and Deansgrange showrooms display the full range of products manufactured at the Antrim facility, including Performance uPVC, OMNIA Flush, aluminium, and sash windows, in a wide selection of colours, finishes, and specifications. It is the best way to experience the quality of what comes out of our production line before it goes into your home.
Book a free consultation to discuss your project with the Fairco team.
