One of the UK's leading suppliers and installers of secondary glazing.
Nationwide coverage in mainland UK.
Bespoke secondary glazing - we can fully install or deliver to you for DIY fitting.
We give friendly, informed advice to help you make the right decision.
Fit secondary glazing to stop draughts, reduce heat loss and combat noise effectively.
PRICE MATCH PROMISE - always giving the best value.
We promise to always advise you honestly about the potential solutions to your current heat loss, noise and security issues so that you can arrive at an informed decision in your own time.
We promise to always treat your home and possessions as we would treat our own, and ensure that we protect them carefully while we are carrying out the work.
We promise that we will never use any form of pressure selling.
All our secondary glazing products have been independently tested by UKAS and is the most effective system available in the UK today.
Black Knight - large enough to cope; small enough to care.
Nationwide coverage in mainland UK.
Bespoke secondary glazing - we can fully install or deliver to you for DIY fitting.
We give friendly, informed advice to help you make the right decision.
Fit secondary glazing to stop draughts, reduce heat loss and combat noise effectively.
PRICE MATCH PROMISE - always giving the best value.
We promise to always advise you honestly about the potential solutions to your current heat loss, noise and security issues so that you can arrive at an informed decision in your own time.
We promise to always treat your home and possessions as we would treat our own, and ensure that we protect them carefully while we are carrying out the work.
We promise that we will never use any form of pressure selling.
All our secondary glazing products have been independently tested by UKAS and is the most effective system available in the UK today.
Black Knight - large enough to cope; small enough to care.
Served areas
- National
Highlights and features
- Price Match Guarantee - we will match any genuine, written quotation for comparable product
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Services
Secondary Glazing Balanced Vertical Slider
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Secondary Glazing Tilt-in Vertical Slider
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Secondary Glazing Horizontal Slider
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Secondary Glazing Lift Out
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Secondary Glazing Hinged Unit
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Reviews (3)
Liam Keenan
Mar 01, 2022
Louise Thomas
Dec 22, 2021
Ali A.
Jan 06, 2021
Amazing service from Black Knight. Graeme was excellent from getting the quote done, to explaining different options and getting the job sorted quickly and to the highest standards. The fitters were efficient and professional. Its been 6 months now and what a difference the secondary glazing has made. Blissful sleep, no more road noise and such a big difference on top of existing double glazing.