Company Overview
Established in 1984 Celtic Contractors have enjoyed steady growth, through recommendation and repeat business. A testament to our ability to establish long and successful relationships to whomever we are given the opportunity to work alongside.
We have completed numerous successful projects in collaboration with various managing and main contractors, forming lasting partnerships spanning many years.
We are a Surrey based interior fit out contractor that has grown with our clients whilst delivering value and quality to all our projects. Celtic Contractors has earned their enviable reputation in the marketplace by maintaining a proactive and refreshing approach to our clients business needs.
At Celtic Contractors we conduct our business to the highest standards of honesty and fairness. Our aim is quite simply provide the highest possible level of finish within budget constraints and to exceed our clients expectations in all elements of our operations.
Board of Directors
John Whyte - Managing Director
Founder member of Celtic with over 35 years Industry experience. Has a hands on philosophy and endeavours' to visit every site at least once every week. Coming from a front line delivery background John has a practical knowledge of drywall and ceilings, John always maintains an in depth awareness of all the company activities.
John Brennan - Operational Director
John has been with the company since its onset and has in excess of 30 years experience in construction. He controls, organises and oversees on site operations, from the site management team to attendant labour. He is the Director responsible for Health & Safety, will also control production costs on site.
Martyn Stewart - Project Director
Joined Celtic Contractors over 10 years ago from a small fit out contractor with a further 15 years service. Works in conjuction with the other 3 Directors to ensure time and budget constraints are met. He is from a contract management background and is involved in projects from the tender stage right through to practical completion and then on to after sales.
Jonathon Whyte - Director
The most recent member of the Celtic board he has been with the company for over 10 years working up through the ranks, started as a fixer, quickly moved on to site management. Now works mainly on site assigned to our larger projects.


