Door and window guarantees

We are confident you’ll be delighted with the quality of our products and the C&A Window Systems service. We care that you’re happy, and our service continues after the installation or supply of your windows and doors, with door and window guarantees being part of this service.

Quality door and window guarantees by C&A Window Systems

Homeowners family time in a lounge in front glazing with door and window guarantees

Our door and window guarantees naturally vary, depending on the client type, whether they are installed in a dwelling or commercial building and when provided on a trade supply-only basis.

Door and windows guarantees for homeowners

For our full retail supply and installation service to our homeowner clients, our products come with a ten-year guarantee on the products. Exceptions to this can include some products like our integral blinds, where the manufacturer stipulates the guarantee. Your installation is also covered by CERTASS certification with an insurance-backed guarantee.

Glazing guarantees for commercial installations

Our supply and installation service for our contractor clients includes specific guarantees depending on the product type and the intended building use. For commercial contracts, hardware, surface finishes, glass, and products can each carry their specific warranty, for instance, doors and windows in marine or coastal locations. You can contact us for full details of door and window guarantees for offices, schools, retail and other commercial buildings.

Trade Supply Only Guarantees

Our trade customers installing our products benefit from a comprehensive product and manufacturing guarantee, providing peace of mind for their end-user customers. The product guarantee covers the powder-coated surface finish, our own warranty on our manufacturing quality and any associated hardware and components required to make your windows and doors. You can contact us for full details of our warranty and quality for our supply-only windows and doors in our Reynaers, Alutech or Senior Architectural systems.

Importantly, our supply-only windows and doors are not installed by us, and we have no control over the installation quality of third-party installers. The installer would usually be the first point of contact.

Expertly crafted windows and doors by C & A Window Systems

aluminium fabricator

We are proud of the quality of our products and warranties. Our homeowner, commercial or trade clients have peace of mind because we make our own products in our factory and do not use third-party manufacturers or installers.

Glass, the powder-coated finish, handles, locks, gaskets, and accessories naturally do come from specialist manufacturers, and often these provide their own terms and guarantee period on their products. Full details are available upon request.

Our door and window guarantee also depends on the specification required, such as enhanced security, special access control requirements or individual guarantees, over and above what is provided by us. For example, some manufacturers of key locking cylinders provide their own warranty, applicable once the end-user clients register the product with that company.

Contact us for more information about our door and window guarantees on our entire range of products.

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.