Trade Supply Windows and Doors

C & A Trade Supply Windows and Doors

When you choose C&A Window Systems for your trade supply windows and doors, you’re in partnership with a reliable and trusted supplier, helping you grow your business and benefit from the desirability of aluminium windows and doors.

Our Reynaers and Senior Architectural systems are some of the best, tried and tested, widely specified and with an excellent system and brand reputation. Trade supply windows and doors for glazing firms, building contractors, trade counters professional installers.

Reynaers aluminium systems for the trade

All our products meet the requirements of current Building Regulations for energy efficiency, ventilation, accessibility, security and performance. We have the systems in place with suitable conformity paperwork, letting you complete your installations with confidence and meet your client’s requirements.

We offer a specialised service geared towards meeting the unique needs of the trade, wanting to buy glazed or unglazed fabricated windows and doors. Our products are made from high-quality aluminium materials and are designed to provide a durable and reliable solution for every type of building project.

slim modern windows6 1

Residential and Commercial doors and windows – perfect for the professional installer

Reliable Supplier Service

Best Lead Times

Always Quality Products

From a simple aluminium window installation to a full building project, our made-to-order windows and doors are right first time, promptly delivered and competitively priced. With our dependable service, you can rest assured that your trade supply order will be processed quickly and efficiently to get you the products you need when you need them.

For your residential projects, the desirable Reynaers range gives your customers premium aluminium windows, sliding and folding doors and residential doors. All come with renowned Reynaers product engineering and substantial colour, hardware and product functionality options. Our Reynaers products provide you with traditional or contemporary glazing, including the latest ultra-slim sliding doors, steel-look windows and designer aluminium doors.

For your commercial projects, Senior Architectural windows, doors, commercial doors, and curtain walling are easy to specify, great to install and come with some of the best design features, insulation and performance for high-traffic buildings. A complete range of Senior commercial doors is ideal for any building that is not a dwelling, needs a super-reliable entrance, exit or access control door, and meets current Building Regulations for Accessibility.

The trade supply only service you expect

Using our leading fenestration software, our prompt quotations are accurate, detailed and prompt, letting you complete your own quotations faster and with confidence. You are also welcome to take advantage of our modern showroom and factory, where you can bring your clients to view a wide variety of products.

Our lead times are efficient and help meet your project goals. All products are carefully protected and ready for transportation. Our delivery service is available to your premises or direct to the site. A friendly professional team understand the end-user or commercial client market, making us the perfect partner to help your business grow.

Grow your aluminium business as a C & A Partner.

Wherever you’re located in the UK, becoming a C & A Partner gives you even more scope for growth with quality leads and an exclusive area. We support you with quality-made products for your chosen residential or commercial market, backed by our professional service in trade supply windows and doors.

Frequently Asked Questions about trade supply windows and doors.

Some answers to common questions about trade supply windows and doors and C&A Window Systems – dedicated to providing the trade installer with a reliable and personal service.

What to look out for when buying aluminium windows?

Choosing the best trade supplier of aluminium windows and doors means finding a manufacturer that offers both windows and doors for your end-user homeowner customers as well as products designed for commercial property. You should also check the specifications and performance of the windows and doors provided, ensuring they meet with current Building Regulations, can comply with the architect’s specifications and demonstrate that they meet the needs of the homeowner customer as well. Importantly your choice of aluminium windows should also offer a choice of contemporary, steel-look, industrial, slimline or classic styling, ensuring you can provide windows and doors for most property types.

Which brand is best for aluminium windows?

Whilst every good window brand provides a replacement or new window solution, Reynaers Aluminium is regarded by building professionals, architects and discerning homeowners as one of the best aluminium window brands. With a vast range of window and door options and solutions, even products designed for individual and very specific requirements, Reynaers offers some of the best-designed, styled, secure and thermally-efficient windows and doors on the market.

How do you provide your trade supply windows and doors?

C&A Window Systems provide our products ready to fit, fully fabricated and assembled with all cills, beads and ancillary times cut to size. Transport sizes and the nature of the product may mean some outer frames, such as those on bifolding or sliding doors, are provided in kit form. With extensive experience in manufacturing and installation, our products are made and designed for the trade to fit, glaze and adjust easily and quickly.

Do aluminium windows meet current Building Regulations?

Yes. With the correct glass specification, aluminium windows should comply with the latest 2022 Building Regulations, Part L, covering energy-efficiency, U-Values and window energy ratings.

Do aluminium windows meet Part F of Building Regulations?

Approved Document F of the Building Regulations covers new ventilation rules. Previously, any old windows taken out and fitted with trickle vents required the new windows also to have trickle vents. These are also required for new build homes. With the latest 2021 changes, all habitable rooms must have trickle ventilation, and each room’s ventilation area has also increased. Contact us for more information about compliance for your project.

I want to start selling and installing aluminium windows.

We are a reliable, efficient and expert trade manufacturer of aluminium windows and doors for dwellings and commercial buildings. We are also dedicated to providing trade installers and window fitters with quality-made products with reliable and prompt lead times at great prices. Contact us to discuss your requirements.

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.

Better windows and doors

Give your customers the superior products they expect with brand reputation, design, security and impressive energy efficiency.

Your project on track

Don’t let colour stand in the way of what you want to sell. Popular colours are held in stock, and special colours are available in as little as ten working days.

Aluminium Expertise

Our modern factory, manufacturing the leading systems for contractors and specifiers, ensures the best customer and site service.

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.