Our flagship showroom is 40,000 sq ft. It's well worth booking a showroom appointment if you're about to embark on a project with a requirement for architectural glazing and timber.

Hi, Thanks for the comment, if you like a quote for an extension such as this one contact the IQ Team here: [email protected] and we will take a look at the project drawings!

The surrounding framework is made up of timber and steel - usually when we install sliding glass doors of this size we need a solid structure to fix into.

Thanks! A lot of our glass extension projects use glass on all four elevations, you can see some examples here - www.iqglassuk.com/contemporary-rear-extensions/s47172/

Hi there, if you could send over your enquiry to [email protected] they will be able to assist you with starting a quotation and talking to you about your options. Hope this helps!

Thank you Maggie!

The U value depends on the specification and is calculated on a project by project basis, but the system is fully thermally broken to ensure high levels of thermal performance and to prevent heat escaping. This installation is not triple glazed, but for enhanced performance values we could certainly do this with triple glazing.

@@IQGlassuk Thanks for the reply. I'm looking at retractable roof frames at the moment (large) but the weight of triple glazing requires a fairly substantial structural frame - especially when seismic and snow-loads are factored in. The use of VIG (Spacia etc) would considerable reduce the mass - but I don't think this technology has enough years in industry to have ironed out all the failure points, especially the edge cracking and ultimate loss of vacuum, it's still rather novel. Regards

@@winstonsmith9740 we have a number of systems that sound like they would be a good fit for your project. You can see our retractable glass roof system here (www.iqprojectsuk.com/roof-glazing/#Retractable_Glass_Roof) or our MARS rooflight, which has been designed to reach large sizes without compromising on performance or minimal design (www.iqglassuk.com/mars-automated-rooflight-system/s109973/)

The glass roofs can be cleaned the same as you would any other glazing! Either a window cleaner or by hand if it is within reach.

Yes! You can specify walk on glass for any rooflight/floorlight where there will be access. We can provide anti slip surfaces too.

Do you provide services in India? 1:12

Hi there! You can reach out to us with any queries at [email protected]

The end result was really impressive.

It is quite a high specification design - especially at the height of the doors. You need to use a decent glass spec to make sure the doors are strong. If you were looking for a more cost effective solution for the same opening height you could opt for a smaller door system with fixed glass overlight. But you wouldn't get the same wow factor they get here.

Hi Guljit, thanks for getting in touch! From the information you have provided I would roughly calculate this as costing around £45,000 for supply and installation excluding VAT. Please note that this is only a very rough estimate and to get accurate cost you would need to receive a formal quotation from us. This figure doesn't include any additional technical glazing options, such as solar control coatings or heated glass. Hope this helps, for more information you can get in touch with us at [email protected]

Hi Dylan, thanks for getting in touch! Our glass box extensions use thermally efficient double or triple glazed units, with a full thermal break that limits heat loss through the junctions between the glass panels and doors. We also use low-E coatings that help retain heat by reflecting long wavelength heat from the sun back into the space, rather than letting it escape through the glazing. This ensures that the glass extension meets the thermal performance required by UK Building Regulations. You can also turn the glass itself into a minimal heating solution for the extension space, by integrating electrically heated transparent glass panels into the design that emit an adjustable, radiant heat source. Please let us know if you'd like any further details on any of this. Our team is on hand to provide expert glazing advice - you can get in touch by emailing [email protected] or calling us on 01494 722880.

@@IQGlassuk thanks i have sent a email