0808 168 5208Call Black Knight Secondary Glazing Ltd

Contact us 8am - 9pm Monday - Sunday



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...

December 2014

Thank you for your help at every step of the process. Black Knight always returned calls promptly and were clear on both product and price. A fantastic company to deal with and a great product.

RJ Essex - Dec 2014 - 8th December 2014

October 2014

I was in touch with Loredana today and she is really pleased with the window and had nothing but good things to say about your guys. In her words she has never met cleaner, more efficient and hard working men!

Thank you again all your efforts much appreciated and please feel free to send the invoice, I will see to it being paid as soon as I receive it.

NR London - Sep 2014 - 3rd October 2014

I am absolutely thrilled with the windows! I cannot believe the difference it has made to the noise. You have been a total God-send!

It really has been such a hassle-free and successful experience with yourself and Black Knight.

Thanks so much again.

EE London - Sep 2014 - 3rd October 2014

Thank you so so much for you and your team's skill, attention to detail and professionalism in designing and installing our secondary glazing in the bedroom. We are very happy indeed with the results.

They look amazing and you have managed to make them blend into in our 18th century house. The sound proofing effect is amazing - until we get used to it is is almost "too quiet"!

Seriously, thank you. Please pass my thanks on to the installation team who came yesterday. We are looking forward to getting the lounge done on the 15th.

Also, if you can tell us how much it would cost to have the 3 second floor bedroom windows done that's be great

KL High Wycombe - Sep 2014 - 3rd October 2014

Window is stunning. Very impressed.

RC Manchester - Aug 2014 - 3rd October 2014

Send Black Knight Secondary Glazing Ltd Your Comments...

Please fill in the form below to submit a testimonial. All fields are required.

Rating: 5 4 3 2 1

Enter Code To Stop Spam*

How to find out more?

Book an appointment with us

Book an appointment

One of our friendly and knowledgeable glazing technicians will arrange a free, no obligation consultation at your home, at your nearest convenience.

Contact our freephone number 0808 168 5208

Phone Black Knight Secondary Glazing Ltd

For further advice or any additional information on our secondary glazing, contact our team of experts who are on hand to answer any questions you may have.

Send us your enquiry

Contact Black Knight Secondary Glazing Ltd

Simply send us your enquiry using the form to the right and one of our surveyors will respond quickly to action your request.

Request a Free Estimate

Request a brochure

Please feel free to provide us with your approximate window sizes and designs and we will provide you with a quick estimate.

Send Us A Quick Enquiry


Enter Code To Stop Spam*
Contact Black Knight Secondary Glazing Ltd Today For A Free No Obligation Quotation, Freephone 0808 168 5208

We have placed cookies on your device to help make this website better. You can click the link below to disable cookies, otherwise, we'll assume you're happy to continue
Close This Notice

Disable Cookies | 3rd Party Data Processors