Our Company

Derlin Construction is a family owned and run company specialising in railway maintenance works, predominately London Underground.

We we also carry out building and civils work for residential clients.

The company is run by John & Michael McCormack.



Our clients range from London Underground, Bryen & Langley, Clancy Docwra, Claremont Construction and Silverdale Construction.


Health and Safety

We have a well documented Health & Safety policy which covers all construction disciplines including railway works.


Our Environmental policy and procedures conform with all current legislation.

Quality Assurance

We have ISO 9001:2008 accreditation.