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Thermal Insulation Benefits



Our Price Promise

We will match any genuine quotation, and promise to save you at least 5%* off your total cost.

Thermal Benefits

The importance of insulating our homes better is becoming increasingly apparent in modern times. With spiralling energy prices and the need to protect our environment for future generations we all stand to benefit greatly from making our homes more energy efficient.

Secondary glazing represents an excellent solution for our homes because it eliminates draughts and cold spots from your windows, as well as providing additional comfort through reducing intrusive noise significantly. For historic and listed properties it often represents the only solution and with the majority of these having single glazed primary windows, the actual gains are multiplied even more as secondary windows help with other factors such as reducing condensation in winter time.

The amount of saving will obviously vary depending on the type of property but if you fit secondary glazing to your windows, typically, you will save around £50/year in a small flat and £160/year in an average detached house. Nearly 20% of energy is lost through the windows and this represents nearly £300/year for an average household.

The use of high performance energy efficient glasses such as Pilkington K ™ in our secondary windows will help to reduce the heat loss by up to 60-70% for perfectly sealed existing windows. If your existing windows are draughty, then this figure will increase. These types of glass have reflective coatings which allow solar energy to pass through into your room but prevent it from escaping back out.

The feedback we get from many of our customers is that they actually start to use more of the space in their home, after the secondary glazing has been installed. This is not just because they can sit and relax nearer to their windows without feeling cold but they realise that they did not want to spend time in certain rooms because they were so cold, or cost so much to heat properly.

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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.

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