The Next Generation of Aluminium Doors and Windows

Our trusted partner, Reynaers Aluminium Ltd, that has supplied us for years with outstanding-quality aluminium products. Together we created the next-generation series of window systems and doors.

Furthermore, MasterLine 8 combines the latest-technology. Subsequently to produce windows with ultimate thermal insulation, air-and-water tightness and daylight performance. They are produced with high speed, and mirror the current trend towards maximising daylight.

Additionally, the series can also be integrated with the existing CP130 and CP155 sliding door range and the CW50 curtain walling. They all come as inward and outward opening glass-and-panel, highly-insulated and robust flush doors 

Having previously stated, MasterLine 8 doors are extremely durable and are accompanied with a Passive Housing certificate–the world’s leading standard in energy efficiency, requiring very little energy to achieve comfortable temperature all year around. Consequently, MasterLine doors feature air tightness and excellent thermal performance, along with a class-3 burglar resistance and weight up to 250kg. 

The Future Is Here

Standard, high-Insulation and high-insulation+ are the three industry-leading insulation layers from which customers can choose, which retain and reflect heat. These features bring window U-values down to 0.64W/m2K. Besides, customers can choose from five design variations: functional, renaissance, deco, hidden vent and balcony boor. 

Their outstanding sealing properties (water tightness of 900Pa and reduced air loss at 600Pa air pressure), make them ideal for British weather’s elements. 

The process of manufacturing aluminium doors and windows is complicated, and highly technical. The public rarely takes notice of what is happening behind the scenes and sophisticated methods and machinery of aluminium manufacturers

To create an aluminium miracle, the aluminium goes through several processes, and MasterLine 8 is the latest form of advanced aluminium products supplied by Reanaer Ltd.

At C&A Window Systems Ltd we partner with Reynaers to offer our customers top-notch products that stand the test of time. Back-up and supported by industry giants, our clientele always enjoys supreme quality and services.

To find out more, call us now on 01787 477 976

C & A Window Systems Ltd

Customise Your products

A personalised touch

Glass options

Contemporary designs that enhance security and privacy.

Integral Blinds

An attractive addition delivering privacy and shading when you need it.


Peace of mind starts when you get in touch and lasts for years.

steve arundellsteve arundell
13:43 02 Nov 23
Chris and Andy listen to what we wanted and their team then delivered in spades.Great company well worth the effort to contact.
ArBa InstallationsArBa Installations
22:23 20 Dec 22
Posting from the view of an Installations company, C & A have always been a pleasure to deal with. Their process is very thorough and products are top quality. We use them for all our commercial doors and would highly recommend all their products and them as a company.
Paul DillonPaul Dillon
14:17 23 Nov 22
Great service. Top products. Thank you. C&A
Alfie TonerAlfie Toner
13:43 21 Nov 22
Great company to deal withQuick quotesPleasant staffGreat productsGreat customer supportDefinitely recommend
22:50 12 Jun 22
Couldn’t recommend this amazing company enough from start to finish the professionalism have been second to none. The quality of the work undertaken shows how much C&A take pride in there work. Thank You again
Gary WoodhatchGary Woodhatch
11:11 11 Mar 22
Have been dealing with Andy and Kim in the main at C&A windows for a few months now and the service overall has been great, quick quotes, lead-times inline with expectations and well presented and packaged goods. Great responsive aftersales assistance when called upon. Would recommend C&A for sure.
richard newellrichard newell
07:44 11 Mar 22
Always a pleasure to work with the people at c and a, very good communication throughout the process and most importantly the product is excellent.Highly recommended.

Send us an email

Send us an email if you have any questions.

call us

Need to know more about our products? Call us, and a member of our sales team will help you.

01787 477976

visit us

Book an appointment to visit our showroom.  
8am – 5pm Monday – Friday

Unit 1, Lancaster Way
Earls Colne Business Park, Earls Colne, Colchester CO6 2NS

We are looking for new staff to join our team.