FAQ

Every home is different, so we price each job individually after measuring. The size and number of windows, the style, glass, colour and any extras such as Georgian bars all affect the price. Send us photos through our quote form and we can often give you a guide price without a visit.

Lead times vary by product and workload — confirmed with your quote.

Once your frames are made in our factory, most homes are fitted in one or two days.

Yes. We design and manufacture our frames in our own factory in Edmonton, North London, and our own team fits them. Because there is no middleman, you deal with the people who actually make your windows and doors from survey to aftercare.

Yes — our FENSA registration number is 36583. When we replace windows or doors, we register the work with FENSA so you receive a certificate showing it meets Building Regulations. Keep it safe; you will need it when you sell your home.

Our products come with a 10-year guarantee, backed by insurance, so you are protected even in the unlikely event that we cease trading.

Usually not — like-for-like replacement windows and doors are normally “permitted development”. The exceptions are listed buildings, flats where the lease or freeholder requires consent, and some conservation areas with special rules (called Article 4 directions). We check this at your survey and can provide drawings and product details if you need to apply.

Yes. Finance is available on orders from £1,000 over 1–5 years, subject to status. You can also pay using our standard terms of 50% / 25% / 25%.

Ada Windows Limited is an introducer appointed representative of Ideal Sales Solutions Ltd T/A Ideal4Finance. Ideal Sales Solutions is a credit broker and not a lender (FRN 703401).

A huge range of colours — options vary by product. Popular choices include white, anthracite grey, black, cream, Chartwell green and wood-grain finishes, and many frames can be a different colour inside and out.

Our fitters protect floors and furniture with dust sheets, remove one window at a time so your home is never left open, and take away the old frames and all waste for recycling. We clean up before we leave.

Yes. We replace misted or broken glass units, faulty handles, hinges, locks and door mechanisms, often without replacing the whole frame. Tell us what is wrong in the quote form and add a photo.

Triple glazing adds a third pane of glass, which keeps more heat in and blocks more outside noise. It costs more and the units are heavier. For most London homes, A-rated double glazing is very effective; triple glazing is worth considering for north-facing rooms, busy roads or if you want the best possible energy performance.

Yes. Modern uPVC and timber-look sash windows have slim frames, run-through sash horns and traditional proportions, so from the street they look like the originals — but they slide smoothly, lock securely and keep draughts out. In conservation areas we will advise which designs are most likely to be accepted.

Composite doors have a solid, insulated core and multi-point locking. Ask us about anti-snap cylinders and doors tested to recognised security standards if you want extra assurance for insurance purposes.

Bifold doors fold right back to open the whole width to the garden, which is great for summer. Sliding doors have larger glass panels and slimmer frames, so they give a better view when closed and take up no space when open. We are happy to show you both at the survey.

Secondary glazing is an extra window fitted on the inside of your existing one. It is ideal for listed buildings and flats where the original windows must stay, and it can greatly reduce noise and draughts at a lower cost than full replacement.

Yes. We replace old polycarbonate or glass roofs with modern glass, lantern or solid tiled roofs, which make the room much warmer in winter and cooler in summer. Some solid roof conversions need Building Regulations approval, which we explain at the survey.