Finchley, Muswell Hill, Highgate:
terraces with strong opinions.
N1–N22 · Haringey · Barnet · Enfield · Islington
Glazing for North London
- Postcodes coveredN1–N22
- BoroughsHaringey · Barnet · Enfield · Islington
- Completed here13+ installations since 2025
- Districts so farN1, N2, N3, N4, N6, N9, N10, N11, N18, N22
- Guarantee10 years, product and installation
Before you order in N London
- Haringey Article 4 DirectionsOfficial register
- Barnet conservation areasOfficial register
- The rules, plainlyDo I need planning permission?
- PricesLondon fitted prices 2026
Conservation areas and Article 4 Directions are street-by-street. We check your address against the register at survey and prepare like-for-like drawings where an application is needed.
Housing stock in North London
What we meet most often across N1–N22, and what tends to be specified for each. The survey decides; this is where the conversation usually starts.
| Era | Where | Usually specified |
|---|---|---|
| Edwardian terraces | Muswell Hill, Crouch End, Finchley — bay fronts and original sash | uPVC Sash Window, Aluminium Heritage Window, uPVC Flush Casement |
| Victorian villas | Highgate, Islington fringes — often listed or in a conservation area | Aluminium Heritage Window, uPVC Sash Window |
| 1930s semis | Southgate, Edmonton, Palmers Green | uPVC Bay & Bow, uPVC Casement Window, Aluminium Casement |
| Rear extensions | Kitchen openings onto the garden | APX20 Plus Sliding Door, X-Fold 120 Bifold |
Frequently asked about North London
Do I need planning permission for new windows in North London?
Usually not for a house that is not listed and not under an Article 4 Direction: like-for-like replacement windows are permitted development. Flats, listed buildings and streets with an Article 4 Direction are the exceptions, and North London has all three. Check your address on the council register before ordering; our planning permission guide explains how, and we prepare the drawings if an application is needed.
How many windows has Apex Glazing fitted in North London?
At least 13 completed installations across N1–N22 since 2025, taken from our own job records, and that counts only jobs where the postcode was recorded against the deal. Every one was surveyed, manufactured to size and FENSA self-certified.
uPVC or aluminium in North London?
On a Victorian or Edwardian street, uPVC sash or an aluminium heritage window keeps the look the conservation officer expects. On a 1930s semi, a uPVC casement or bay is the usual answer and the best value. For a rear extension opening, slim aluminium sliding or bifold. The survey settles it; nothing is ordered before it.
What do new windows cost in North London?
Prices are set by the window, not the postcode. Our London cost guides give fitted 2026 prices per type: uPVC casement from £550, aluminium from £900, slimline sliding doors from £4,500. A survey turns that into a fixed quote for your openings.
Do you cover all of N1–N22?
Yes. The districts where we have completed work so far are N1, N2, N3, N4, N6, N9, N10, N11, N18, N22; the rest of the region is the same drive from our base and priced the same. If you are just outside, ask — the map is a guide, not a boundary.