We have experience of the fabrication of many different energy efficient window styles, opening options, hardware and colour choices to suit a variety of applications. - schools, factory units, university buildings.  We understand the demands that are put on our aluminium windows in these high usage applications.  We offer

  • Casement windows with opening restrictors.
  • Fixed windows
  • Bifold windows
  • Awning windows
  • Sliding windows
  • Replacing Crittall Style windows

The commercial aluminium windows are fabricated from aluminium alloy and designed to offer excellent weather resistance and featuring a polyamide ‘thermal break’ between the inside and outside frames to provide excellent insulation properties.  There is a wide range of colour and finish options to suit a corporate style or to fit with planning restrictions. The frames are powder coated to a colour of your choice and can be a different colour inside to outside. We have the perfect colour to suit every project in any location.

We can work with you regarding access to the building, if you are looking to replace windows.  We recently replaced windows at a university building which involved a road closure, lifting at height and all done on a Sunday.

It’s unlikely that you’ll need planning approval to install replacement windows and doors, but if you do, we can utilise specific systems to meet the requirements of sensitive new build and refurbishment projects – even for buildings that are listed. We are happy to discuss your individual project and offer advice on the most suitable options.



The windows are internally beaded for security purposes and have multipoint locking systems. Internally beaded top hung and side hung sashes have successfully tested to BS7950.  PAS24 - you can find out more about security.


The windows are available in many configurations including incorporating them into curtain walling or along side an aluminium door.

Commercial aluminium windows Sheffield

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What our customers say

“Just wanted to express my thanks for the excellent work done by your installation team at my property today. I missed them leaving so was unable to thank them in person. We’re delighted with the product! The windows look great and I’m hugely impressed by the quality of the build and finish, the appearance and the installation. Your men were polite and courteous and worked to a very high standard.

It really has been a pleasure doing business with you.”

Bifold Doors fitted

“Thanks to #CMCAluminium for their 7m bi-folding door installation at our barn conversion project in Grindleford nearing completion. A great company to work with and nothing is ever a problem.”

CMC Aluminium – Peak District

“We are very pleased with the job you have done.

The two chaps that fitted it took the utmost care which we very much appreciate.”

Mr Gadd – Sheffield

“Many thanks for the recent works installing the two patio windows at our cottage.
They look great and I am very pleased with them indeed.
Again many thanks for the works done.”

Mr Wright – Patio Windows in Derbyshire

“The advice you gave, on all sorts of queries, from locks to hinges to options for glazing panels, was very informative and useful. Overall we are delighted with the way that the project was handled by your company from Start to finish. Thank you for doing such a good and customer focused job.”

CMC Aluminium Derbyshire School

“The quality and standard of service has been excellent.
We are most impressed with the after sales and maintenance service.
We will certainly be using you again in the future.”

CMC Aluminium – School in South Derbyshire

“Thank you very much for the service that you and your colleagues provided.  All the work was carried out with the minimum of disruption with the staff being very helpful and considerate. Thank you again, we will certainly recommend you to anyone we know who wants similar work carrying out.”

Mr Galbraith CMC Aluminium Derbyshire

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