Since 1991 Hygienic and Environmental Engineering Services (HEES) has provided electrical and mechanical engineering support to the Biotechnology, Pharmaceutical and Industrial markets.
Combine our coverage, experienced office and on-site teams and you have a reliable partner, working to the very latest quality standards.
We aim to be the first choice for local support & proven design solutions, delivered on time and to budget.
We are proud of our engineering achievements and quality of service so we let our reference list speak for itself.
HEES carry out all project installations in accordance with the latest comprehensive Quality Assurance Systems.
We are accredited to ISO 9001, ISO 14001, OHSAS 18001
Download copies of our: Environmental Management System, Environmental Policy Statement
Reference: International Organization for Standardization
We are also accredited to the British & European Compressed Gases Association and the NICEIC

Ideally placed near Heathrow & the Eurostar our head office in George Green is perfectly placed to support the UK & Ireland with our office in Brussels giving us a multilingual base for mainland Europe.
HEES recognises the challenges to maintaining site engineering & design resources.
We therefore compliment and support our customers wherever their resource is challenged, allowing operating budgets to be maintained, whilst increasing their levels of support and backup.
We can provide:

We use the latest enclosed head welding equipment from Orbimatic.

Our weld technicians are all qualified to:
Materials of construction:

We can offer the electrical expertise to provide complete renewal, refurbishment or modification to clients’ electrical installation services.
All electrical installations are fully compliant with the Institute of Electrical Regulations BS7671:2008 and we are a National Inspection Council for Electrical Installation Contracting (NICEIC) registered contractor.
This provides clients with the comfort of knowing that all the electrical installations are backed up with a guaranteed standard by the NICEIC.
Our electrical control panels and distributed I/O are all constructed according to IEC & EN Standards, UL 508 & 544 NEMA and NEC or CSA.
Our installation services include:
HEES have listened to our valued customers and reduced lead times and improved our cost base by supplying modular sub assemblies.
Our standardised assemblies enabled us to deliver, install and commission ahead of schedule and within budget.
A complete installation service is available to manage and support our customers applied resources.
Support & management extends to: