Our dedicated team of professional window and door fitters can give you advice on the most suitable modern UPVC or Velux windows for your property and even help you choose the colour.  

double-glazing bifolding doors rear house extension in Enfield, E4

Expert Window & Door Fitters in North London

AIA Building Contractors are trusted installers of double glazing and high-end windows and doors for Haringey, Walthamstow, Barnet, Enfield and all surrounding areas. We specialise in delivering elegant, functional and secure double-glazing solutions for both residential and commercial property owners. Our wide range of door and window fitting services includes door/window repairs, double glazing and installation of high spec UPVC and VELUX windows.


All the doors and windows that we install come with numerous benefits for you and your property. Our sealed double-glazing units are resistant to the effects of misting and have the highest energy ratings. The additional stabilisers used in the manufacturing process of our double-glazing windows encourage heat retention and also increase the amount of light that enters your home, so you will be saving big on your bills with our energy-efficient windows. Our double-glazing window and door solutions not only look fantastic, but they also increase the value of your North London property, so get your new high spec windows installed today!

Installing new windows in north london home

Trusted Suppliers of Modern UPVC & Velux Windows

Even though classic UPVC and Velux windows remain a favourite among many homeowners, modern UPVC and VELUX windows have increased in popularity and demand as they effortlessly blend into properties with a contemporary design. Homeowners in North London are now looking to have UPVC and VELUX windows fitted, due to their sturdiness, beautiful appearance and how flawlessly they match the style of the property. At AIA Building Contractors, we specialise in installing white UPVC and VELUX windows or any colour that you prefer. Our dedicated team can advise you on ideal UPVC and VELUX windows that will seamlessly match the style of your property.

AIA Building Contractors is widely regarded as the preferred option for modern window fitting throughout North London. Our customers can enjoy the most competitive prices and the peace of mind that comes with our use of high-quality products and materials.


Contact us now for a free no-obligation quotation!

Close up view of window security lock

Expert Door & Window Repairs in North London

A full replacement can occasionally be avoided through our professional window repair service. At AIA Building Contractors, we provide honest assessments on the condition of your existing installation and we’ll never suggest a replacement if our study shows that our window repair service can’t get your job done more affordably.

Window renovations can be used to fix various issues with your North London home. For example, misted windows can be mended, broken glass panes can be replaced and, if security is your main concern then we can fit the latest high specification locking systems to keep you and your property safe from the likelihood of unwanted intrusion.

Velux window in north london home

At AIA Building Contractors, we provide the following:

  • ​Bespoke Windows

  • UPVC and VELUX Window Suppliers

  • UPVC and VELUX Window Installers

  • Double Glazed Units

  • Window Repairs

  • Misted Window Repairs

  • Windows Replacement

  • Wooden Windows

  • Aluminium Windows

  • Vertical Sliding Windows


Get in Touch Now for a Free Quote!