Since 1991 Hygienic and Environmental Engineering Services (HEES) has provided electrical and mechanical engineering support to the Biotechnology, Pharmaceutical, Commercial 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.