Grayson Thermal Systems


The leading supplier of Cooling, Heating & Air Conditioning Products 

Grayson Thermal Systems design, manufacture and supply  engine cooling, heating, and air conditioning products for buses and coaches, specialist off-road vehicles and commercial vehicles worldwide. We are responsible for the sales, installation and servicing of Thermo King vehicle air conditioning systems to the bus and coach industry throughout the UK.

A proud UK manufacturer, Grayson works in partnership with our customers to develop innovative ways for them to improve vehicle performance and reliability. Our customers include some of the best known OE manufacturers and vehicle operators. From the heart of England, we serve customers in Britain and right around the globe including China, the US, Eastern and Central Europe and New Zealand. We have opened Grayson North America and Grayson Poland, and plan a further programme of satellite businesses across the world. .

Formed in 1978, we remain a privately owned, family business. Exceptional staff within the organisation ensure the core beliefs that have led to our success remain at the heart of our business operations. 


Our systems can be found in an incredibly diverse range of vehicles. From specialist hybrid to earth moving vehicles, our products deliver high performance and durability even when faced with the most extreme operational challenges.

Tough climates are no barrier to the operation of our products. The extreme heat of Dubai, Las Vegas, Athens, and Hong Kong has proved no match where our products perform exceptionally 24/7 year after year. 



Grayson design and manufacture OE and aftermarket engine cooling, heating and air conditioning products that meet your demands – no matter how challenging they may be. Our innovative designs and continual improvements through extensive R&D has resulted in producing products that deliver exceptional test results and operational performance. 

We offer total flexibility – if we do not have a suitable off the shelf solution, we will create a new system tailored to your exact specifications. Our bespoke design service ensures you do not have to compromise on performance. 

Our product range includes

  • Complete cooling modules
  • Radiators
  • Charge Air Coolers
  • Oil Coolers
  • HVAC products
  • Tube/ Shell coolers
  • Fuel tanks Silicone hoses


Because we are passionate about our products and yours, Grayson Thermal Systems is renowned for an expert maintenance and technical support service that is second to none.

Our team is dedicated to servicing a wide range of air conditioning systems and our own growing range of heating and cooling products.

Our service division has become such an important part of our business that we have a dedicated service centre and a network of 30+ service engineers covering the whole of the UK. Our customers can have peace of mind of having the very best assistance and advice available.

Maintenance and Support packages include: 

  • Cooling system maintenance
  • Heating system audits
  • Drop and Clean
  • Cooling system overhaul
  • HVAC system service
  • HVAC system retrofit
  • Fire suppression install/ retrofit 




Technical sales +44 (0)121 700 5610
General enquiries +44 (0)121 700 5600 

United Kingdom
Head Office and Aluminium Research and Development Division
Wharfdale House,
257 Wharfdale Road,
Birmingham B11 2DP

Copper Brass and HVAC Manufacturing Division
1 Wharf Road,
Birmingham B11 2DX

Matco Engineering Division
Unit 6,
Rovex Business Park,
Hay Hall Road,
Birmingham B11 2AU

Air Conditioning and General Vehicle Servicing Division
Unit 44,
Elmdon Trading Estate,
Bickenhill Lane,
Birmingham B37 7HE 

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