Home page of Hyperbaric Tunnelling Ltd.

Hyperbaric, Tunnelling

Welcome to the new Hyperbaric Tunnelling website.

“T.R.H.A Ltd is a specialist hyperbaric tunnelling company established in 1997. We provide expert services related to all hyperbaric techniques associated with modern tunnelling applications, together and in parallel with related Tunnel / TBM;  Safety, Medical, Occupational Health, Rescue & Extrication supports.
Please use the navigation panel (Left) to find your way around. Our telephone and email addresses appear at the foot of every page for your convenience.

A.R.Ridley MSc CMIOSH – Managing Director”

Hyperbaric Tunnelling Services Hyperbaric Tunnelling Hyperbaric Tunnelling Hyperbaric Tunnelling Services Hyperbaric Tunnelling Tunnel Engineering & TBM Support

Some of our larger projects:-


Tel: +44 01508 538 838   Fax: +44 01508 538 938
Email: info@hyperbaric-tunnelling.com or tony_ridley@btconnect.com