Made about 5.9 miles from North Finchley
Sash windows in North Finchley
Sash windows for North Finchley homes, made to measure about 5.9 miles from our workshop in N18 and fitted by our own team across N12.
Covering N12 and the surrounding streets

Sash windows for North Finchley homes
The housing in North Finchley is largely 1930s semis, purpose-built maisonettes and modern flats. Some 1920s houses have sash windows alongside bays, so note whether the bay sashes slide or are fixed before deciding how closely to match the original arrangement.
Newer homes built in a traditional style sometimes have mock sashes, and genuine sliding sashes can replace them where you want a more authentic opening action. In mansion blocks, sash replacement is often controlled by the freeholder or managing agent, so get written approval of the glazing pattern and material before ordering.
Flats and maisonettes often need careful access planning; we arrange this with you and, where needed, your freeholder before fitting day.
Sliding sash windows open vertically and give period homes their familiar look, with balanced sashes, horns and glazing bars. We make replacement sash windows to match original proportions, suiting owners of Victorian, Edwardian and Georgian properties who want better insulation and security without losing traditional character.
- Matched to original proportions and glazing bars
- Smooth vertical sliding operation
- Fewer draughts and rattles than worn originals
Questions from North Finchley
Do I need planning permission for sash windows in North Finchley?
Most North Finchley homes can replace windows without planning permission, but some streets fall within conservation areas, so we check with Barnet Council before quoting. Replacement sash windows on a house are usually permitted development if they look similar, with FENSA covering Building Regulations, but conservation areas with Article 4 directions, listed buildings and flats often need consent.
How soon can you fit sash windows in North Finchley?
Lead times vary by product and workload — confirmed with your quote. Being about 5.9 miles from our factory makes surveys, fitting days and aftercare visits easy to arrange.
Should I repair or replace my old sash windows?
If the timber is mostly sound, repair and draught-proofing can extend the life of original sashes, and may be required on listed buildings. Where frames are rotten, sashes are badly warped or you want much better insulation than single glazing gives, replacement is usually more practical. We'll give you an honest view after inspecting them.
Can I see samples before I decide?
Yes. Our showroom is at Unit G, 1 Anthony Way, London N18 3QT (Mon–Fri 8am–5pm), about 5.9 miles from North Finchley. We can also bring samples to your home in North Finchley at the free survey.
Sash windows we make and fit
New windows now.
Pay over 1–5 years.
Finance on orders from £1,000 over 1–5 years, or our standard terms of 50% / 25% / 25%.
See finance optionsAda 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).
Sash windows near North Finchley
- Sash windows in Woodside Park
- Sash windows in Friern Barnet
- Sash windows in Finchley
- Sash windows in Whetstone
- Sash windows in New Southgate
- Sash windows in Totteridge
- Sash windows in East Finchley
- Sash windows in East Barnet
- Sash windows in Mill Hill
- Sash windows in Hampstead Garden Suburb
- Sash windows in New Barnet
- Sash windows in Golders Green
- Sash windows in N12
- Every area for sash windows
Other services in North Finchley
Free quote for sash windows in North Finchley
Send your requirements and a few photos — our team will come back with a clear, no-obligation price.


