FENSA registered family company with its production factory in North London.

We manufacture, install and carry out repair works on PVCu windows and doors.

Get in touch to discuss your requirements

Brochure selection

  • Ada Windows Ltd Catalogue
  • Decorative Glass Options
  • Shield Inspiration
  • FD30S Fire Doors
  • Composite Doors
  • Conservatory Skyroof
  • Aluminium Bifold Doors
  • Pergola Systems

Quality & Standard

Our products and installation services are regularly checked by FENSA, Fairtrades and TrustMark to ensure we’re maintaining industry standards.

Energy efficient

Energy Efficient

Turn your home into a lean green energy-saving machine, by installing our PVC-U windows and doors. We can help you to reduce your carbon footprint and your energy bills

Price match

Best Price

Ada Windows Ltd promises to give the best price. We’ll price-match any like-for-like quote and offer you a gift on completion of the works.

interest free

Interest-Free Finance

We provide flexible and affordable payment options! Our finance options is simple. No interest. No management fee. No admin fee. Speak to us for further information.

expert fitter

Expert Fitters

We employ experienced fitters who’ve been in the industry for at least two years. All our fitters undergo training and supervision in the first three months.



have been awarded an energy rating of up to A+ and are made of a material that’s achieved a BFRC (British Fenestration Rating Council) Green Guide A rating.


Multi-Point Locking

Our windows and doors come with the latest high-performance multi-point locking technology meaning you can rest assured that you’re keeping your home and family well protected.

48 hour

48-hour fabrication

Are you trade? Do you have clients with urgent requirements? Order before 10am and get your windows in 48 hours at no extra cost. Don’t panic. We’ll make sure you meet your deadlines.

sound red

Sound Reduction

28mm thick insulated double or tripled glazed units and multi-chambered outer frame with multi-chambered sashes are sure to reduce the sound coming into your home.



All our installations are covered by a 10 year insurance-backed guarantee, which means your guarantee is covered by HomePro if we go bust! This is sure to give you a peace of mind.

internal bead

Internal Beading

Unlike externally glazed PVCu products, our windows and doors are manufactured with glazing beads that are fitted internally for extra security.


Refer & Earn £150

We provide a great service so our clients naturally “spread the word”. We now give £150 cashback to our existing clients when they refer a new client.

Get a quote

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