BLACK KNIGHT
SECONDARY GLAZING LTD
THE MOST INTELLIGENT WINDOW SOLUTION

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Testimonials

At Black Knight Secondary Glazing, we strive to provide an exemplary service to each of our customers. As an independent contractor, we recognise the importance of delivering high quality products with a customer-focused service to match.

Please find below a selection of our customer's testimonials, with additional references happily made available upon request.

What Our Customer's Are Saying About Us...

June 2016

Everything appeared to go well with the installation of the three units, and the results are very pleasing. The difference in just the sound insulation alone is most noticeable..

It has been a pleasure to do business with you and you will certainly be well recommended by us.

AH York - May 2016 - 29th June 2016

The windows are great!

My ear plugs are gone & it's made a huge difference.

JL Oxford - June 2016 - 20th June 2016

May 2016

The joiners did a wonderful job and the noise levels are so much better.

I so wish we'd done this years ago so that we could have benefitted from this vast improvement but you live and learn.

All in all a brilliant job all round and the colour of the paint finish is spot on.

DH Esher - May 2016 - 24th May 2016

I just wanted to say that the Windows have been completed and we are very pleased with the installation.


The fitters have been excellent in their efficiency and workmanship. I would also like to thank you for your understanding and flexibility during the process.


All issues and delays, none of which were caused by your company, have been dealt with with patience and calm consideration which we appreciate.


I am very pleased that I chose Black Knight and would have no hesitation in recommending them to anyone. You have acted like an advisor throughout and if we decide to have further secondary glazing in the house we will return to you without hesitation.

PO Lichfield - May 2016 - 24th May 2016

April 2016

Having had the secondary double glazing in place for just under a year now and with winter finally over I am very pleased to be able at last to send you the promised feedback and to once again thank you for your excellent service.

Firstly the whole process from first contacting your company, to fitting the secondary double glazing panes has been fantastic. Highly professional, efficient and a high standard throughout.

Secondly, although it was not the primary aim of having the secondary glazing fitted nonetheless the outside noise reduction is is very significant. I live in a busy part of the city with its fair share of typical and expected noise. But I must say that once the panes where in place all that noise has almost completely disappeared.

And finally, the main reason I had the secondary glazing installed is that I live in an old Victorian building with very thick walls and original wooden sash windows, who look beautiful but are really not very useful when it comes to keeping the drafts and cold out.
Having the secondary double glazing on all 10 windows has kept the average temperature inside my flat (which has a large open-plan lounge/kitchen with a high vaulted ceiling) by at least 2 degrees higher than last winter, before the secondary glazing installation. And also it doesn't sound like much, nonetheless it meant I didn't have to heat the place up as much as I did last winter and the place stayed draft-free all winter. An all that at a very reasonable price too!

JM Southsea - Apr 2016 - 6th April 2016

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Contact our freephone number 0808 168 5208

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