Black Knight Secondary Glazing Ltd

Our Secondary Glazing units are designed to give increased thermal and acoustic insulation and security. Keep the period character of your existing windows

One of the UK's leading installers of secondary glazing
Nationwide coverage
Fully installed by professional fitters or DIY fitting
Friendly, informed unpressured advice to help you choose well
Stop draughts, heat loss & noise effectively
PRICE MATCH PROMISE - always giving the best value
Big enough to cope, small enough to care

Why fit Secondary Glazing?
It can reduce heat loss through your single glazed windows by 70%

It eliminates cold spots and draughts

It can vastly reduce incoming noise

It gives additional security to your home

It is neat, unobtrusive and fitted with a minimum of disruption

Why should we use Black Knight?

We promise to advise you fairly and honestly on the potential solutions to your current heat loss, noise and security issues so that you can come to an informed decision.

We promise to treat your home and possessions as we would our own, ensuring we protect them carefully whilst the work is carried out.

We promise never to use any form of pressure selling or over-stay our welcome.

Our UKAS tested glazing system is the most effective system available in the UK today.

We are large enough to cope and small enough to care.