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We appreciate your interest in Invision Glazing. As specialists in secondary glazing, we offer a comprehensive selection of products tailored to enhance insulation, acoustics, and safety across both residential and commercial properties. Whether you're aiming to reduce energy consumption, mitigate external noise, or bolster window security, our range of expertly manufactured solutions—produced here in the UK in partnership with Granada—are designed to meet these demands. Our offerings include sash, horizontal and vertical sliders, hinged units, and fully bespoke designs. Every installation is backed by a 10-year warranty for lasting peace of mind.

In recent months, our team has successfully completed projects across a range of settings—from a heritage cottage in Ashbourne requiring improved heat retention, to a school prioritising security enhancements with minimal disruption to daily operations. We approached each assignment with flexibility, working night shifts where necessary to accommodate our clients’ routines. Our process ensures a seamless fit, maintaining aesthetic integrity while significantly improving thermal performance and sound reduction. At Invision Glazing, we are proud to deliver consistently high standards of workmanship, technical precision, and customer care—qualities that are clearly reflected in our glowing client testimonials and continued referrals.

Highlights and features
  • Reduce energy bills with superior heat insulation
  • Significantly lowers outside noise for peaceful interiors
  • Enhanced security with robust secondary glazing systems
  • Precision installations tailored to each unique property
  • 10-year warranty on all Granada glazing products
  • Discreet designs that preserve original window aesthetics
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Services
Invision Secondary Glazing At Invision Glazing, we deliver bespoke secondary glazing systems tailored to commercial properties across the UK. Our certified team ensures each installation enhances energy efficiency, acoustic performance, and security without compromising architectural integrity. We are known for our meticulous standards, on-time delivery, and specialist solutions for heritage and listed buildings. Clients value our commitment to quality and reliability.
Secondary Glazing
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Secondary Glazing Secondary glazing offers a discreet method of enhancing your property’s insulation and noise reduction by fitting an internal pane over existing windows. This solution increases thermal performance, helping maintain a comfortable indoor climate throughout the year. It is particularly suited to properties where window replacement is not viable. Our system is efficient, unobtrusive, and economically sound.
Reviews (24)
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Adnan
Feb 20, 2025
5 Realise I recently had secondary glazing installed by Glenn and Lee, and I couldn't be more pleased with the results. Their installation work was efficient and showcased remarkable attention to detail. Additionally, Aaron, who surveyed the property, was exceptionally honest and provided invaluable insights and recommendations throughout the process.

The team's customer service was outstanding, making the entire experience smooth and enjoyable. I highly recommend their services to anyone considering secondary glazing! I can officially relax in my home with my family with warmth and no more outside traffic has virtually gone and save money on my heating bills.
Carol Heap
Jan 30, 2025
Excellent service from start to finish. At every stage we were kept informed of progress. When the team were in our home they were efficient, polite and worked with respect of our home. They also like dogs!. We would recommend Invision to anyone considering secondary glazing.
Matt Phillips
Oct 28, 2024
I had 17 windows installed with invision secondary glazing in my Grade II listed Georgian home. The service was impeccable throughout and the product is excellent quality. It has made a big difference to sound proofing and heat efficiency of my home.
D. Brown
Aug 06, 2024
I had two secondary windows put in to my bedroom and study as building works are near my house. The difference is absolutely amazing. Aaron and a fitter came and fittend them flawlesly and the whole process was perfect. Highly recommended.
Ant
Jul 22, 2024
Absolutely delighted with Invision Secondary Glazing very trustworthy and highly recommended and the entire team respected our property. I would recommend to anyone looking for traffic noise and heat loss issues. The best solution on the market with the best quality windows and attention to detail you cant even tell we have had them installed and its actually works for both heat loss and noise. Thanks again it was a pleasure I was I am glad we decided to choose you guys. 5
David Hutchinson
Jul 15, 2024
Excellent service window fitters Glenn and Lee were great, very tidy and efficient. Discussed with us the precise position of the window units and checked we were happy with the fitting. The windows very neat and well made
Helen Sutton
Jun 03, 2024
Great experience - the chaps from Invision completed the work quickly, they were really respectful of my home, and went over and above to ensure the new internal windows looked in keeping with the style and decor of my house (an old cottage). Most importantly the windows do a great job of reducing outside noise and retaining heat to the room. Everyone I spoke with from Invision were extremely helpful and friendly, and I would definitely recommend the company.
Andrew Wilkins
Mar 21, 2024
Invision go the extra mile for sure a friendly service from start to finish no push to sales techniques and just do what the customer asks and more. We Would definitely recommend to anyone who was looking to save money on heating bills Im not forgetting noise issues from road traffic the window has reduced so we can be cosy in our home. The guys were respectful with our property and extremely clean and tidy.

The tension to detail is outstanding and you wouldnt even know the windows have been installed. Thanks you again to all the team at Invision Seconday Glazing 5**** Kind regards, Andrew Wilkins
Jan Dollery
Mar 16, 2024
I would highly recommend this company. They fitted my flat with secondary glazing. Aaron visited to assess and measure my existing windows, discuss all the options and was able to give me a quote there and then. Steve installed the secondary windows to a very high standard, almost invisible against the original windows. Throughout the process communication between us was maintained and they responded quickly to any queries.
Billy Grant
Mar 12, 2024
Recently had Invision Secondary Glazing Ltd quote, supply and fit 2 secondary glazing windows and a new composite door to a grade 2 listed building. The service was excellent from start to finish, Lee fitted the windows and Aaron fitted the door. Both were very knowledgeable and professional. The secondary windows and the door have already proved they are worth the expense as the noise levels in the building have dropped considerably and our EPC rating has now improved. Would highly recommend!
Lydia Slack
Jan 26, 2024
Highly highly recommend Invision Secondary Glazing. The whole process from start to finish was excellent. Aaron called me following my enquiry online to book in a survey and quote for secondary glazing for the front of our house (conservation area with original single glazed sash windows). It was clear from his visit he is extremely experienced. He measured up the windows there and then and gave us a detailed quote, talking us through the different options.

His quote was 20% cheaper than other quotes we got for the same product from the same manufacturer. We chose low-e glass (as it was primarily for heat retention), with vertical sliders and tilts for our sash windows. Once we paid the deposit, we were told it would take approx. 5 weeks for manufacture. Almost to the day, Aaron called to say the windows were ready and booked in the installation. Steve and Connor came to install the windows shortly after.

They did an excellent job, turned up on time and took their time to get the perfect finish. They showed us how everything worked, then came back the following day to fix our curtain poles and boxed it out nicely so it would match the secondary glazing boxing. We have noticed a huge difference with our heat retention - our house now stays warm through the day and night and it has also massively reduced sound from the road outside. Further, the windows look GREAT, so much better than we expected, we think it's actually improved the overall look of our windows, as it's framed them really nicely - something we were a little worried about prior to installation. Highly recommend Invision Secondary Glazing, a company with real integrity.
Maurice Flemmings
Jan 21, 2024
Secondary double glazing replacement. Good job at a good price! Thanks Aaron Services Glass weatherproofing
Scott Green
Nov 23, 2023
These thought of great solutions to difficult issues and made the project work with their adroit and diligent attention to the work and the detail.
James Goodenough
Nov 12, 2023
Installed secondary glazing in large sash Georgian windows and did a really good job. You can hardly tell theyre there and seem efficient with heat retention. Friendly, professional staff that sorted everything exactly as planned and slightly ahead of schedule. Highly recommended.
Richard Edwards
Oct 12, 2023
Such a fantastic service from start to finish. We had great advice whilst choosing our windows, they arrived when promised and the fitting team were wonderful. Cant recommend the team and service highly enough, and whats more weve now got beautiful secondary glazing which looks great and has made our house so much easier to heat. Have ordered more windows already!
Nicola
Sep 30, 2023
We live in a 1700 building in derbyshire and Invision glazing provided us with exactly what we needed to keep the heat in and reduce the noise pollution. Aaron came to survey and the whole team were very attentive and professional throughout. 5 stars! It was a pleasure to have them in my home.
Faith
Sep 05, 2023
We have been looking for an efficient secondary glazing solution for our listed property for some time and are so delighted we found one that works so well. Our windows are now all draught free and with no sign of condensation since they have been installed! Despite having narrow window frames, Invizion glazing were able to provide a solution that worked perfectly.

They knew exactly what we wanted and did a fantastic job at working with us. The service from this invizion has been excellent throughout the whole process, starting with Aarons survey to installation. I will also add the installation team were very helpful, polite and tidied up any mess during and after installation. I thoroughly recommend this company and their products. Ps: enjoy the chocolates!
Andrew Johnson
Aug 29, 2023
Invision did exactly as promised. On budget. On schedule. And the glazing looks perfect. We are cosy and peaceful. Aaron managed the project from quote, through survey to contract. Steve and he managed the installation. Lee and Glenn were thoroughly professional as the installers working with them. And Glenn even discovered that he enjoyed classical music! Thank you all.
Aidan Hogg
Apr 06, 2023
Really happy with the work quality, worked around my schedule, fair price, and would definitely recommend Services Glass fitting, Glass installation
Melissa Joyce
Mar 09, 2023
Was in need of a full refurb on our house. Aaron and his team were very knowledgeable, very informative and took us through all of our options, price and product wise and were not pressurising us in anyway. Would fully recommend!
Grace Bown
Nov 18, 2022
I would like to thank Aaron and his team for fitting our secondary glazing! Very professional from beginning to end. These windows will definitely help to lower the heating bills. Highly recommend. Services Glass installation
Carolyn Young
Oct 30, 2022
We had secondary glazing in our grade two cottage, and what a difference it has made, our heating bills have gone down ( no more drafts) and the noise reduction Very professional company answer all questions, return calls and turn up when they say. Would 100% recommend.
Jane Seabrook
Sep 29, 2022
We have just had our downstairs fitted with Granada secondary glazing, supplied and fitted by Invision. We could not be happier. Aaron carried out all site measurements and the units were ready for installation within a few weeks. He attended to fit on Monday with his colleague Connor and carried out the installation on the date agreed and in a single day.

That was no easy job, with 11 windows to install some complicated aspects, but they were here working for a full 12 hours. (before setting back off home!) The result is as good as I could have hoped for. We have a period cottage, with irregular openings and uneven rebates and I was concerned about how the units may fit and how they may look with our Georgian windows.

In fact they fit and look excellent and are incredibly discrete. I could not recommend these guys highly enough. In addition to being extremely competent at what they do, they are delightful to have around, very thoughtful and they tidied up exceptionally well. Once again very many thanks for a great job done.
Daniel Orton
Sep 19, 2022
Outstanding service from the start of my enquiry to receiving the secondary glazing. I was advised on each style of window and the difference between glass specifications. we decided to go with a medium range of 6.4mm acoustic glass, and I can not believe the change to our property. We intertanly want a solution for the traffic noise with us being right on the main road the noise has now completely been eliminated.

We can finally have a good night sleep and enjoy relaxing time in our home, plus we have cut back on the heating bills within the last two months because of the secondary glazing. I would recommend Invision glazing to anyone suffering from noise and wanting to save money on the heating bills. Outstanding workmanship 5