Casement Windows in Harrow
From £350
| Service | Typical price in Harrow |
|---|---|
| Casement Windows | £402 - £1,035 |
| Sash Windows | £690 - £1,265 |
| Bay Windows | £1,380 - £3,680 |
| Door Installation | £977 - £2,070 |
| Window Repair | £102 - £288 |
Looking for casement windows in Harrow? Compare free, no-obligation quotes from vetted local installers in your area. Typical prices in Harrow sit around from £402 depending on unit count and specification.
Casement windows are the UK's default replacement choice - hinged on the side, opening outward, and available in uPVC, aluminium or timber. If your existing frames are pre-2005 or single-glazed, replacing them with A-rated casements typically pays back in energy savings within 8-12 years.
The single biggest price driver is glass area, not frame material - a 1200x1200mm casement costs roughly the same in uPVC or basic aluminium, but doubles for triple-glazed or thermally-broken aluminium. Standard installs use argon-filled double glazing with a warm-edge spacer; upgrading to triple glazing adds around 15% for a marginal thermal gain in most UK climates.
Popular specs for casement windows
Argon-filled A-rated double glazing, 28mm sealed unit, warm-edge spacer, low-E soft coat, multi-point locking, internally beaded, trickle vents (mandatory since June 2022).
Windows and doors in Harrow - local context
Interwar semis dominate the borough, with Victorian streets around Harrow-on-the-Hill, Edwardian villas in Pinner and Wealdstone, plus 1930s Metroland estates in Kenton and Belmont.
Dominant era of housing stock: Interwar Metroland semi-detached.
Heritage note: Around 25 conservation areas including Harrow-on-the-Hill and Pinner village.
- Pinner
- Stanmore
- Wealdstone
- Kenton
- Rayners Lane
- Harrow-on-the-Hill
Postcodes we cover in Harrow
- HA1
- HA2
- HA3
- HA5
- HA7
- HA8
Not seeing your postcode? Request a quote anyway - we likely still cover it.