Valve engineering & mechanical services

About Us

Commitment to quality

Endotec are are ISO 9001:2015 and ISO 14001:2015 accredited.
All our relief valves are tested to API 527 as standard.​

Endotec are an established and trusted engineering company providing the highest quality valve servicing and mechanical services to heavy industry including power generation, oil, gas and chemical industries.

We have been established since 2001 founded by Maurice and Stephen Doe, who are highly experienced and respected in the valve industry. Their vision was to build a business around a team of experienced, ‘time served’ engineers that would work in partnership with their customers. Today Endotec has its third generation of the Doe family working within the company.  

This approach has paid off, with high profile clients such as Centrica Energy,  N Power and Lindsey Oil Refinery using Endotec for not only their valve expertise but also providing mechanical services and more recently the supply of specialist safety labour.

A true testament to our levels of customer service is the fact that we are still working with clients we started with in 2001. Not many businesses can say that.

The Endotec Group also includes MH Pneumatics who provide compressed air solutions to the industries including manufacturing, food, power generation and engineering. Find out more about MH Pneumatics


The unrivalled expertise and experience of our people make them our greatest asset. At the heart of our team are our ‘time served’ engineers who have the wealth training and on-the-job experience so crucial in such a specialist field.

We invest in the training and development of all our staff including Nebosh, Iosh, Swagelk and Tyco qualifications and courses. We have also invested through apprenticeships to develop the valve and engineering experts of the future.

Our business is passionate about the environment! We have taken steps to reduce our energy consumption, lowering our carbon emissions for our local community. As a business we have invested in LED lights. This will make a huge difference to the environment and this is just the start of our sustainable journey.


To help us invest in these energy saving measures we had support from Smart Energy Greater Lincolnshire. Through this we received a grant of £3222.40 to enable us to make these fantastic changes.


The £8.5 million Smart Energy programme has been part funded by the European Regional Development Fund. This is enabling small to medium businesses across the Greater Lincolnshire area invest in energy-saving technology.