About LONDON & LOCAL Window Design Ltd.


Argon Filled Glass

The inner cavity of a traditional sealed unit is filled with dry air. A Rated units have the air replaced with Argon, creating an extra barrier to heat loss.

10 Year Guarantee

The units within our A rated windows come with an extended manufacturers 10 Years Guarantee.

Warm Edge Technology

80% of a windows heat loss is through the aluminium spacer bar. A rated windows utilise a modern composite polymer material 950 time less conductive than aluminium.

Sell Your Property Faster

Energy ratings now apply to your entire home and windows contribute hugely to the overall rating. Fit London & local A rated windows and you’re well on your way to an A rated home.