100 years of Leadership

In Water & Wastewater Treatment

Leading Provider

Of Industrial Water Solutions
  • Offices in England & Scotland
  • +44 1403 272772

100 years of Leadership

In Water & Wastewater Treatment

Leading Provider

Of Industrial Water Solutions


Cradle-to-Grave Environmental Engineering

With the exception of any building & civil work that may be needed, we provide you with a complete package for your water and wastewater treatment needs. We outline the various parts of that below but perhaps the most important part in some ways is the fact that we offer you a “cradle-to-grave” service. In other words, not only do we supply you with a high-quality system but, once it is operating and proven, we offer you on-going technical support, servicing and spare parts throughout its life on whatever basis you prefer.

Reverse Osmosis section of plant serving a UK power station

 Process Design / Chemical Engineering

Process design and the associated Chemical Engineering is at the heart of what we do; it is certainly the first activity required in designing a solution to your problem since it defines what equipment is necessary and how big and complex (or not) it needs to be.

Once the Process Design is complete, it is further developed into the detailed design that defines each item of equipment, including its size, complexity, materials of construction, connection details etc.; in fact every detail that is necessary to procure, manufacture, assemble and finally install and start up the solution that we provide to you.

Each stage of the design is checked and approved by our peers within the company to avoid any unintentional errors.

H+E has been doing this for more than 100 years so, not unreasonably, we feel that we do have a level of experience that enables us to offer among the best-designed systems currently available.

However, we are definitely not complacent about this experience and constantly remind ourselves of our commitment to “Continuous Improvement”, which indicates our clear intention to remain at the forefront of our chosen business.

ANAFIT anaerobic treatment for pulp & paper sector

 Equipment Manufacture

We manufacture a substantial amount of the custom-designed equipment in-house. Typically this includes items in plastics, including tanks, skids etc. Such items are designed and manufactured to appropriate international Standards so we know that they will have a long life. A 25 year service life is perfectly normal for plants that we design and supply. In fact many of the plants we have supplied are still working after a lot more than 25 years. If you want your plant to be well designed and have a long, trouble-free life so that you can focus on production, contact us and we will be happy to discuss what you need.

Of course, we also purchase a lot of COTS (Commercial Off The Shelf) equipment such as instrumentation, pumps, valves etc. and in such cases we are always happy to discuss with you any preferences you may have for equipment type or manufacturer.

You can download the brochure here

ltrafiltration system prior to delivery to site


One of the advantages of having our own manufacturing facilities is that it enables us to simply pre-assemble a lot of the equipment, including interconnecting pipework and electrical wiring, before we deliver it to you. This has two major advantages:

  1. We can test all our manufactured equipment and pre-assemblies in our own factory before we deliver it to you to ensure that we did indeed get the quality right.
  2. It minimises the time we need to spend on your site to assemble it before we can then start it up and train your staff how to operate it.

 You can download the brochure, including pictures of pre-assemblies, here

Wastewater Treatment for a Petrochem refinery

 Installation, Commissioning and Training

As mentioned above, we also install whatever we supply to you. Generally, all we ask of you is to provide the space necessary with all the required services (power, water, air etc.) As a rule, equipment is installed by our own staff. However, if this is not possible for any reason, we certainly have our own Site Supervisor / Manager monitoring the work.

Once mechanical and electrical installation is complete, we do all necessary “dry” testing before we start to fill the plant for the final commissioning stage. This is always done by our own staff and they will train your staff during this process.

Technical-Support Service

 Service and Technical Support

Once your plant is fully operational it will need to both operate correctly on a day-to-day basis and also be provided with occasional maintenance and replacement of some components.

If you would prefer not to operate the plant yourself, we will be pleased to talk to you about that.

But most clients are perfectly happy to operate their plant on a day-to-day basis, simply because the work involved is not very time-consuming.

Long experience tells us very clearly that plants operated by our clients benefit very substantially from an occasional service visit from one of our Engineers. In most cases such visits take just one day, and the clear objective is to go through the plant’s operation from beginning to end and check that everything is set-up, calibrated and operating as it should be in order to achieve the best possible performance. Service visits should be regular, planned (so that you know in advance when it will take place), and at a frequency to suit you. This depends on both your preference and to some extent on the size and complexity of the plant. However, typically, once every three months is a good starting point.

One of the advantages of pre-planning each visit is that the operators know in advance when it will be and can then prepare their questions in advance; Service visits are not just about checking the plant’s operation, but also about answering the operators’ questions and dealing with any minor training needs on-the-spot.

We have a substantial number of clients for whom we have supplied Service and Support for well over 25 years and their plants are still operating perfectly satisfactorily, and we are in touch with them regularly, providing service, technical support and spare parts when necessary.