Made about 6.0 miles from N20
Sash windows in N20
Sash windows for homes across N20 — Whetstone, Totteridge, Oakleigh Park and Totteridge Lane, made to measure about 6.0 miles from our Edmonton factory and fitted by our own team.
Including Whetstone and Totteridge

Sash windows for N20 homes
Victorian and Edwardian terraces often have two-over-two or one-over-one sashes with horns, and matching that pattern exactly keeps the front elevation consistent with neighbouring houses.
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. In conservation areas and on listed buildings, councils may insist on timber sashes or repair rather than replacement, so check with the planning team before choosing materials.
Larger homes need big glazed doors and good security, while older houses near the High Road need period-appropriate replacements. The High Road and the Northern line are the main sources of noise. We are about six miles from N20.
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 N20
Do I need planning permission for sash windows in N20?
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 N20?
Lead times vary by product and workload — confirmed with your quote. Being about 6.0 miles from our factory makes surveys, fitting days and aftercare visits easy to arrange.
Will the council allow replacement sash windows in N20?
It depends on the property. Houses outside conservation areas usually have permitted development rights for similar-looking windows. In conservation areas with Article 4 directions, on listed buildings and for flats, you may need permission, and some councils require timber. Checking with the planning department before ordering avoids problems later.
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 6.0 miles from N20. We can also bring samples to your home in N20 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 N20
Other services in N20
Free quote for sash windows in N20
Send your requirements and a few photos — our team will come back with a clear, no-obligation price.


