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Rated 1 out of 5 stars

8 years after a bespoke installation - made and installed by IQ glass - 2 out of the 5 glass panes are shot. I accept it’s out of warranty but quality is poor and the remedy was to offer at £250 visit... See more

Rated 5 out of 5 stars

Dan and the team were fantastic the whole way through - from visiting the showroom - exploring different options - organising the project and installation. They were also extremely responsive to an e... See more

Rated 5 out of 5 stars

Excellent facility, great staff. We were there to look at and experience a possible lift for our home. The lovely person guiding us was most helpful in letting us see and try the various options. The... See more

Company replied

Rated 5 out of 5 stars

Great experience with IQ midlands. We’ve enjoyed the windows for 4 years and no issue. Until a supergust of wind caused one to slam and knock out the frame and beading. Despite being out of warranty,... See more

Company replied

Company details

  1. Glass Merchant
  2. Aluminum Window Manufacturer
  3. Door Supplier
  4. Window Supplier

Written by the company

IQ Glass is the UK's leading specialist glazier, renowned for its decades of expertise in delivering cutting-edge, high-performance architectural glazing solutions throughout the UK and beyond. With a deep understanding of buildability and innovation, we provide bespoke glazing systems that seamlessly blend functionality with aesthetic design, transforming spaces with precision and advanced technology.


Contact info

4.2

Great

TrustScore 4 out of 5

166 reviews

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Replied to 80% of negative reviews

Typically replies within 48 hours

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Rated 5 out of 5 stars

Dan and the team were fantastic…

Dan and the team were fantastic the whole way through - from visiting the showroom - exploring different options - organising the project and installation. They were also extremely responsive to an early teething issue related to ongoing building works and resolved it within 48 hours. We are extremely pleased with our windows.

June 4, 2026
Unprompted review
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Rated 1 out of 5 stars

8 years after a bespoke installation - failed

8 years after a bespoke installation - made and installed by IQ glass - 2 out of the 5 glass panes are shot. I accept it’s out of warranty but quality is poor and the remedy was to offer at £250 visit (would have been £350 but only as we are local £100 discount not because of their failure) to survey the site which was refundable if I then replaced the glass with IQ - so they charge for their failure. Poor quality don’t use

April 4, 2026
Unprompted review
Rated 5 out of 5 stars

IQ Glass presented a fantastic CPD on…

IQ Glass presented a fantastic CPD on Minimally Framed Glazing at our offices. We will definitely be in touch again for future CPD opportunities.

April 30, 2026
Unprompted review
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Reply from IQ Glass

Thank you for the review. We’re pleased you found the CPD valuable, and we appreciate you having IQ Glass in to present to your team!

Rated 5 out of 5 stars

Great experience with IQ midlands

Great experience with IQ midlands. We’ve enjoyed the windows for 4 years and no issue. Until a supergust of wind caused one to slam and knock out the frame and beading. Despite being out of warranty, Jake and the team came and fixed within a week. Now as good as new.

May 9, 2026
Unprompted review
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Reply from IQ Glass

Thank you for the review! Jake and the team will appreciate the mention. We’re pleased we could get everything sorted quickly and have you back up and running again!

Rated 5 out of 5 stars

Very informative presentation with some…

Very informative presentation with some clever details.

April 30, 2026
Unprompted review
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Reply from IQ Glass

Thank you for the review. We’re pleased you found the presentation informative, and we appreciate you taking the time to share it.

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Rated 5 out of 5 stars

Excellent facility, great staff

Excellent facility, great staff. We were there to look at and experience a possible lift for our home. The lovely person guiding us was most helpful in letting us see and try the various options. The overall showroom is fabulous - spacious, with all sorts of facilities and ideas for one's home. Overall we found this an excellent and useful experience, well worth the trip.

March 18, 2026
Unprompted review
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Reply from IQ Glass

Thank you for the review! We’re pleased you found the visit so useful and enjoyed the showroom experience here at Sky House. It’s great to hear the team looked after you so well, and we appreciate you making the trip to see us.

Rated 5 out of 5 stars

IQ Glass offers excellent products

IQ Glass offers excellent products; particularly their sliding doors, rooflights, and French doors, which interested us. Sam and Josh were extremely helpful, taking the time to answer all our questions thoroughly.

March 31, 2026
Unprompted review
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Reply from IQ Glass

Thank you for the review. Sam and Josh will appreciate the mention, and we’re pleased they were able to help you explore the options and answer your questions!

Rated 1 out of 5 stars

Rubbish windows and rubbish service

IQ Glass supplied us with many sliding doors from Panoramah. They are all rubbish. The doors have never fitted properly and are falling out of the tracks. We are in a windy location and the doors are completely unsuitable, constantly letting in air and water to such an extent the temperature in the house falls by a few degrees on windy days. IQ won’t come out unless you pay them in advance, and when they did they did not resolve any problems instead they left dirty hand prints on walls next to the doors they serviced and silicone spray running down the frames. It’s honestly the worst £125k I have ever spent and after our experience my architects have stopped using them. Avoid. During the design phase they kept making mistakes on the drawings and then would take another 10 working days to turn them around. All in all the delays caused by IQ cost us a whole extra year in construction. I’m writing this review at 23:45 at night, unable to sleep because of the wind howling around the doors and the rain gurgling in the tracks.

March 2, 2026
Unprompted review
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Reply from IQ Glass

Thank you for taking the time to share this, and I’m sorry to hear you’ve been disappointed. We’re not currently able to match your name to a project record from the details in the review, so we can’t investigate properly or arrange the right support without a bit more information. Please email us at aftersalescare@iqglass.group, or call our office on 01494 722880, with the project address and any reference you have, and we will locate the job and agree next steps to resolve the issues you have raised.

Rated 5 out of 5 stars

Excellent service

We had a delightful technician make a few repairs to our large sliding glass side door. It’s about 16 years old and showing a few signs of wear and tear which were repaired quickly and efficiently. Great service .

March 6, 2026
Unprompted review
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Reply from IQ Glass

Thank you for the review! We’re pleased the repairs were carried out quickly and efficiently, and we appreciate you taking the time to share your experience.

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Rated 5 out of 5 stars

I can highly recommend IQ Glass

I can highly recommend IQ Glass. Back in 2014 we had every window in our home replaced with Slimfit aluminium double-glazed windows, and the whole process went perfectly. The installation was smooth and, to this day, we haven’t had a single issue.
More recently, we completed a large rear extension and chose IQ Glass again to install floor-to-ceiling slimline sliding glass doors. The quality and finish are outstanding. We never even considered going anywhere else — IQ Glass was the obvious choice for us.

February 10, 2026
Unprompted review
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Reply from IQ Glass

Thanks Christine for this fantastic review. This is the experience we strive for with our clients, and we're very happy to be helping with your projects time and again. Looking forward to our next project together!

Rated 2 out of 5 stars

Good design, poor quality of product and workmanship

The design is very good. We had a large window/door done and three roof windows. The door is a disappointment. The handle did not work - it has way too short a door handle not working and got a wonky repair. Then the coat started flaking and now the door is rusting - really poor quality, I would expected more. Hopefully they will help me rectify this and wont have to replace the whole thing at great cost.

February 20, 2026
Unprompted review
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Reply from IQ Glass

Thank you for taking the time to share this, and I’m sorry to hear you’ve been disappointed. We’re not currently able to match your name to a project record from the details in the review, so we can’t investigate properly or arrange the right support without a bit more information. Please email us at aftersalescare@iqglass.group, or call our office on 01494 722880, with the project address and any reference you have, and we will locate the job and agree next steps to resolve the issues you have raised.

Rated 5 out of 5 stars

We very much enjoyed our visit to the…

We very much enjoyed our visit to the Skyhouse Design Centre @ IQ Glass Headquarters, arranged by Daniel Borthwick. A warm welcome, excellent service, and some fabulous designs for consideration and inspiration. We look forward to partnering with IQ Glass on our current project at Inwoods Park, Warwickshire, and we can't wait to see the window and glass installs very soon.

February 2, 2026
Unprompted review
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Reply from IQ Glass

Thank you for the review; we’re pleased you enjoyed your visit to the Sky House Design Centre and felt well looked after. Daniel will appreciate the mention, and we’re looking forward to working with you on Inwoods Park and seeing the installations come together soon!

Rated 5 out of 5 stars

Tom Branagh is brilliant and a credit to the company.

Excellent company with very good products. We can always rely on these guys for high quality and reliable service.

Tom Branagh is brilliant and a credit to the company.

February 9, 2026
Unprompted review
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Reply from IQ Glass

Thank you for the review; Tom will really appreciate the mention. We’re glad you can rely on us for quality and service, and thank you for taking the time to share this!

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Rated 5 out of 5 stars

Charley and the team at IQ glass…

Charley and the team at IQ glass delivered a fantastic install for me the whole process was flawless from design to install i can not recommend IQ enough

November 30, 2025
Unprompted review
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Reply from IQ Glass

Thank you for the review; Charley and the team will really appreciate the mention. We’re pleased the experience was smooth from start to finish, and thank you for the recommendation!

Rated 5 out of 5 stars

well organised showroom to experience…

well organised showroom to experience IQ Glass vision

January 13, 2026
Unprompted review
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Reply from IQ Glass

Thank you for the review; we’re pleased the showroom helped bring the options to life, and we appreciate you taking the time to share it!

Rated 5 out of 5 stars

CPD training…

IQ Glass recently provided CPD training for our architectural team across two sites. It was really helpful to have them come to each office separately. Informative and well delivered.

December 9, 2025
Unprompted review
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Reply from IQ Glass

Thank you for the review; we’re glad the CPD was informative, and we appreciate you having us at both offices!

Rated 5 out of 5 stars

Everything was great

Everything was great. The meeting to consider our plans & main concerns about temperature control under a glass roof was reassuring. Sarah was knowledgeable & patient, we spent 2 hours there & didn’t feel rushed. The showroom & the products were superbly laid out so we could open & close them, understand the mechanisms & options with IQ glass. It’s important to understand what may or may not work in our space. We have another company yet to see but IQ glass is currently to of the list.

December 22, 2025
Unprompted review
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Reply from IQ Glass

Thank you for such a detailed review; we’re pleased the visit helped you feel confident about the options, especially around temperature control. Sarah will really appreciate the mention. If you have any follow-up questions as you compare suppliers, we’re always happy to help!

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Rated 5 out of 5 stars

IQ Glass review

Hi, we had some issues with leaking seals & gaskets around windows and doors at a coffee shop in Brighton. IQ were very helpful in dealing with this - sourcing a new, higher spec gasket and sending a technician to fit. They have been quick to respond and cooperative and friendly to deal with. Overall very pleased.

November 26, 2025
Unprompted review
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Reply from IQ Glass

Thank you for the review; we’re glad we could resolve the issue quickly and get everything performing as it should. We appreciate your kind words about the team’s responsiveness, and we’re pleased you’re happy with the outcome!

Rated 5 out of 5 stars

Jack Brown presented a fantastic CPD…

Jack Brown presented a fantastic CPD again to our team this year. He was very informative, friendly and helpful.
We regularly liaise with IQ glass as they help us on a lot of our architectural projects and their products are fantastic. The whole team are friendly and helpful and prompt at responding.

November 18, 2025
Unprompted review
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Reply from IQ Glass

Hi Shannon,

Thank you so much for your kind words! We’re thrilled to hear that Jack’s CPD session was informative and enjoyable for your team. It’s always a pleasure working with you, and we’re glad our team and products continue to support your architectural projects effectively. We really appreciate your ongoing partnership and look forward to continuing to work together!

Rated 1 out of 5 stars

Expensive Rubbish

£22k installation misted in under 4 years.
Denied I had a 5 year warranty because it was a specialist installation. But I had contracted with one of their subsidiaries which was their specialist installation arm.
Unbeknown to me IQ Glass had placed the specialist subsidiary in Administration ( they bust it)
Fabrication and Installation was subcontracted. Expensive rubbish.

November 30, 2024
Unprompted review
IQ Glass logo

Reply from IQ Glass

Thank you for sharing your feedback. We’re truly sorry to hear about the issues you’ve experienced and understand how frustrating this must be given the investment you made.

To clarify, the installation was completed in 2019 and the project is now out of warranty so any works or replacements would be chargeable which was communicated to you contacted our After Care department earlier this year. One of our directors then got in touch but we didn’t receive a response. We remain willing to discuss options if you’d like to revisit this. Please reach out to us directly.

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