North London's Premier Fabricator and Installer of Aluminium and uPVC Windows and Doors

Welcome to Ada Windows Ltd, probably one of London’s fastest growing double glazing companies. From our factory location in Enfield, North London, we cover up to 50 mile radius, working with both commercial and domestic clients. So whether you’re based in Enfield, Haringey or Walthamstow or further afield, give our friendly team a call on 020 8803 8004 to find out how we can help.

Why Choose Ada?
In order to maintain our high level of quality, we make UPVC and aluminium windows, doors, sliding and bifolding doors are made in our factory in Enfield. In addition to this, as FENSA approved installers, we take pride in carrying out the replacement of your windows and doors and provide our customers with a 10 year guarantee. Our focus is to always deliver the best possible service and look to go above and beyond the normal regulatory standards on all installation projects. Although we primarily cover the North London area, we also operate in Hertfordshire, Essex and Kent.

Give your home a modern makeover with our fantastic looking PVCu windows and doors. Our units are not only made with the highest quality; they are also highly energy efficient. We also provide a full range of double glazing, secondary glazing and triple glazing.

So if you’re looking for aluminium or PVCu windows and doors that not only look great, but are also some of the most competitively priced in North London, call 020 8803 8004 or email today.

We found ADA online. They were very quick to provide us with a quote and they provided a fast turnaround for the installation of 8 windows and 2 doors in PVCu.
– Joe Oliver

Production success throughout 2021



Windows Manufactured



Bifold doors installed



Conservatories installed

Benefits of using Ada Windows Ltd

Energy efficient

Multi-chambered and reinforced windows and doors can maximise heat retention and minimise heat loss

Quality Products

Regular inspections mean that our installations guarantee at least the minimum industry requirement

Price match

If you find the same product cheaper elsewhere we’ll price-match.

Interest free finance

Straight-forward interest-free finance available for upto 10 months.

Acoustic glazing

Enhance the sound performance of your windows with certificated acoustic glazing options.

Expert installers

Fitters undergo regular in-house training while also being overlooked by FENSA to ensure installations meet industry standards.

Environmental friendly

We use recycled material to manufacture our PVCu Windows and doors. In addition, we recycle any offcuts so they can be used again.

Multi point locking

Windows and doors that come with locking mechanism that features multipoint locking system for security and therefore peace of mind.

Quick lead time

Control is in our hands. As a result priority fabrication options are available for your urgent requirements.

10 Year guarantee

You get 10 year guarantee on windows, doors and conservatories when you order from us.

Internal glazing

As standard, our windows and doors are Internal beading to prevent removal to make difficult unwanted entry, hence a secure home to live in.

Referral voucher

If you refer a relative or friend we’ll provide you with a “thank you” gift.