Grayson Thermal Systems – Corporate Brochure

Grayson Thermal Systems – Corporate Brochure
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Grayson Thermal Systems

Your Global Partner

From the heart of the Midlands UK, we are proud to be a global leader in the design and manufacture of thermal management systems for vehicle and industrial equipment manufacturers and operators worldwide.

Creating the Future of Thermal Management

When the pressure is on and you need the products, service and advice to get the job done, we are here for you. With generations of accumulated experience, no problem is new to us. We have built our reputation as global leaders by producing highly innovative solutions that can be trusted to perform, and by taking a ‘can do’ approach that gets the job done time after time.

Although we are a highly technological engineering company, it is our people who set us apart. From the shop floor to the boardroom our passion to exceed your expectations has been key to building long-term relationships with the most respected manufacturers in the industry. Throughout our history we have embraced new technology to keep us at the forefront of the industry. We are continually discovering innovative ways to produce breakthrough products, and are researching and developing systems that use energy more efficiently – the environment is a priority in our thinking.

Our ongoing investment programme has helped us create world-class manufacturing facilities that can consistently produce better, more technically advanced products than ever before. We also offer an extensive after sales facility that supports the longevity of our systems. In short, we have the people, products, technology, validation and after sales support that make us the first choice to deliver for you.

Generations of Expertise

Today, Grayson Thermal Systems is a specialist engineering company with a strong reputation for quality, innovation and for working in partnership with customers to develop and supply solutions to specific business issues.

We design and manufacture OE and aftermarket heating and cooling products for buses and coaches, specialist off-road vehicles and commercial vehicles, and our customers include some of the best-known OE manufacturers and operators.

We are a proud Birmingham business with two extensive manufacturing facilities, dedicated engineering, research and test operations, and a separate service centre. 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. It’s our ambition to grow our overseas presence still further so we have opened Grayson Corp. in North America and Grayson Poland, and plan a further programme of satellite businesses across the world.

So Grayson has come a long way since 1978, when Graham Hateley opened a car radiator repair business from a small unit in Hay Mills, Birmingham. Now, it’s a proud family-run business with an excess of 230 employees, including three generations of the Hateley family.

More importantly, we’re still brimming with new ideas to take us – and our customers – through the next generations.


We have an extensive range of high quality products and systems for a broad spectrum of cooling, heating, and ventilation applications. From complete air conditioning systems to a single hose, it’s probable that we already have the product you need. If, however, you have a particular specification that cannot be met by one of our existing products, we have the expertise and the manufacturing facilities to be able to design a bespoke solution from concept todelivery.

We serve many different markets globally, each with its own different design, climatic and operational challenges.



Thermal management is a highly specialist area where a wide range of factors are crucial. Our highly experienced design team are experts in crafting solutions to the most challenging of specifications. Each of our products is a complex mix of components that need to be designed to work in harmony with each other; that’s exactly what we do, leaving you one less problem to solve.


Heat exchangers are subjected to a range of potentially damaging forces. Thermal expansion, pressure pulsation, and vibration will all cause fatigue and eventual failure if the product is not designed and installed correctly. Our testing regime and validation process ensures that when you specify a Grayson product, you can have total peace of mind that it will perform above and beyond your specification.


We have constantly reinvested in the latest technology so, whatever your manufacturing requirements, we can consistently deliver what you need. The key to our success lies in our flexibility. We can produce low-medium volumes, manufacture in different materials or produce bespoke designs so you never need to compromise.

Your Partner for the Journey Ahead

Aftermarket Parts Division

A comprehensive parts network worldwide ensures that our customers’ tough standards are met. Grayson has a global network of distributor locations which can be found on

Our dedicated team of experienced and knowledgeable customer service specialists are ready at the end of the phone to answer any questions you might have. They have information at their fingertips for Grayson’s 3,000 plus part numbers.


Grayson Service offers comprehensive service packages for our customers, including:

  • Aircon servicing and repair
  • Engine cooling system maintenance
  • Heating system diagnostics
  • Servicing and repair of Firetrace fire suppression systems
  • Fuel tank replacement


We are committed to building trust with our customers by dedicating ourselves to achieving world-class quality, superior customer support and outstanding value. We operate an effective Quality Management System that has allowed us to be certified according to ISO9001:2008 regulations. We know that our continued success lies in creating your success, which is why we only supply products with excellent performance and reliability.

Latest Grayson Thermal Systems News

Grayson’s Vehicle Thermal Management System

Grayson’s Vehicle Thermal Management System

Grayson Thermal Systems' new Vehicle Thermal Management System (VTMS) delivers industry-leading weight savings and driving range.

Grayson Thermal Systems – Winner of Best HVAC Products Manufacturer

Grayson Thermal Systems – Winner of Best HVAC Products Manu...

Grayson have been awarded the prestigious Best HVAC Products Manufacturer 2019 by the 2019 Midlands Enterprise Awards, UK.

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