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“Grant Gutteridge chats to Tino about his company “Insulating Windows” in Hemel Hempstead. Grant explains how they have been associated with the town for 22 years. I have no idea that you could get different coloured frames.”

Our Home Improvement Products







The Insulating Windows Service

Insulating Windows Limited is based in Hemel Hempstead, Hertfordshire. We have been proudly servicing the double glazing and roof line needs of the local community for 30 years. Along with Hertfordshire, we cover the Buckingham and Bedfordshire are and have in excess of 20,000 satisfied customers throughout the region.

We are a leading quality focussed supplier of beautifully designed bespoke energy efficient windows and doors.

All of our windows and doors can be installed with either double of treble glazing. The energy saving glazing helps reduce your carbon footprint (good for polar bears) and your energy bill by reducing heat loss through the window whilst eliminating draughts and cold spots.

We are a Checkatrade and Which Trusted Trader and a member of Certass, the industries regulatory body.

Please feel free to contact us or visit our showroom to discuss your requirements and we look forward to you doing our very long list of happy customers.



Exceptional Commitment to Customer Service

Which is the UK’s largest independent and most respected consumer organisation. To become a member of the Which Trusted Trader group as a business we have to undergo an accreditation to meet the companies code of conduct.


As a member of Which Trusted Trader, we have to follow best practice and procedures in relation to customer contracts; good and materials; consumer cancellation rights; payments; guarantees and warranties.


As a business, we know that you the customer will be saying something about us good or bad. Each and every one of our customers has the opportunity to rate our work at the end of each installation. The best part is that we get to influence what you say by delivering superior products and workmanship at affordable prices.

The Insulating Windows Service

Insulating Windows are a full service supply and fit double glazing home improvements company based in the Hertfordshire town of Hemel Hempstead. We have more than thirty years experience in the double glazing industry, and have ground to become one of the most trusted home improvements company in Hertfordshire.



‘Most Recommended’ By Which?

We are exceptionally proud to be the number one recommended installer by Which? Trusted Trader in Hertfordshire. How have we achieved this? Loyalty to our customers, dedication to offering competitive rates, and by offering the most cost effective energy saving solutions available on the current market.

Which? Are the leading consumer advice body pin the UK. Which? Trusted Trader provides a platform for homeowners to review home improvement companies on the quality of work, overall value and customer service.

It is a great privilege to be the most recommended home improvements company in Hertfordshire. All of our staff are dedicated to maintaining this reputation by continuing to providing a tailor made and personable service to your requirements.

We are solely dedicated to providing a flawless home improvements experience for all. Leaving you 100% satisfied with new energy saving windows, doors and conservatories.


Double Glazing Prices Hemel Hempstead

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