CAD 21 Ltd


Cad21 Ltd are a team of of highly motivated building services engineers.

Our philosophy towards sustainable design and our ability to directly communicate with our clients puts us at the top of our field.
All building services engineers have been hand picked and are committed to our philosophy.

For more information on our building services engineers please visit our website.

Contract Procurement

We at Cad 21 aim to harmonise the process between design and installation seamlessly and in order to do so have partnered up with:

We have experience of framework agreements with local Authorities and Healthcare Trusts and due to the success of this procurement route, we will be looking to expand on this avenue in the near future.

For more information on our contract procurement please visit our website.

Contract Procurement

Energy Efficiency

We stock a wide range of energy efficiency products.

Our use of Low Energy Lighting utilises compact fluorescent and highly efficient linear lamps with daylight control and proximity detection.

In order to reduce energy consumption we use cold cathode and LED emergency exit lighting with prolonged life improvement. Our external lighting units are fitted with time-control and photocell override to further energy efficiency opportunities.

For more information on energy efficiency please see our website for more.

Energy Efficiency

Carbon Emission Reduction

We aim to provide high comfort, low energy systems by merging heat pump boilers and high efficiency condensing with underfloor heating. Our ventilation systems provide heat recovery via an extraction process from exhaust air and by pre-heating  the incoming fresh air.

CAD 21 is accredited to produce certificates of energy performance.

For more information on carbon emission reduction please visit our website,

Carbon Emission Reduction


Here at CAD 21 we have fully qualified in-house assessors who complete the breeam assessments as well as the certifications for a vast range of building sectors including:

  • Commercial projects
  • Multi-Residential
  • Education
  • Healthcare

For more information on breeam please visit our website.


Cad 21 Ltd

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