Senior SD Commercial Doors

Proven for many years and highly specified for high-traffic doors, commercial offices, shops, retail and schools, Senior SD commercial doors are a non-thermal reliable aluminium heavy-duty entrance or exit door with matching framing.  Made for the trade and construction sectors by C&A Window Systems.

Available as single or double doors rebated single action or centre hung single and double action with concealed closer. Just like its thermally broken version, Senior SD commercial doors suit a substantial range of locks, electric strikes, access control systems and exit hardware. At the same time, the closers, hardware, and threshold options ensure Senior SD commercial doors meet Part M or the Building Regulations for accessibility.

Senior SD commercial doors to a luxury clothes shop
  • Reliable, affordable commercial doors
  • Rebated, centre-hung and anti-finger trap
  • Also available as garage showroom slidingdoors
  • Doors to 1100mm wide, 2400mm high
  • Many door thresholds, midrails and profiles
  • Works with most major door hardware

Widely specified in all manner of commercial developments, where the specification calls for a robust entrance or exit door without insulation. Senior SD commercial doors have, for years, met the demands of high-use buildings. Senior SPW501 commercial doors are ideal as shop doors, office and factory entrance and exit doors, and even plant room doors. Suitable for single or double glazing up to 24mm, including aluminium insulated panels or aluminium louvres.

C&A Window Systems can help you specify the right commercial door for your project. Using Senior SD commercial doors allows access to the major commercial door hardware brands, depending on the functionality of the door set. Main locking, panic exit, fire exit, magnetic locks and access control are all available with this system, using some of the major lock brands such as Adams Rite, Dorma, Axim and many others.

This system also comes with a deep transom section for fixing automatic door-closing devices for hinged doors and operators by Dorma, Besam, Geze and others for automatic sliding entrance doors. A specific set of profiles also allows the fabrication of non-insulated sliding doors for car showrooms, and the door integrates with Senior facade glazing systems.

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.

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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.