Customer Testimonials


Thank you for the service that Black Diamond has provided, which has been what you advertised & more. On joining, the staff took the time to explain the Umbrella Company service and have always had the time to answer my queries quickly in a friendly & uncomplicated manner at the end of a phone.
All Best Wishes for the future to Maria & staff at Black Diamond.

Gerald Burlinson- Senior Piping Designer

The organisation has been professional, courteous and expedient in their continued efforts to deliver the service that I require at all times. I would never hesitate to recommend them to prospective new engineering contractors when the opportunity arises.

Michael Smith

I was introduced to BDU when I started contracting. Black Diamond Solution was easy to set-up and simple to operate; I was forced to use another umbrella company on one contract, but their system was overly complex to operate and I was glad to be able to use BDU on my last contract.

George Greenway

Very easy to contact and always a happy voice on the end of the phone. Keep it up, it’s a pleasure.

Sir Colin Roberts

I have always had friendly, informative and professional contact with Black Diamond Umbrella.

Andy Underwood

Contact with any member of staff has always been helpful & polite. People I have dealt with always appear friendly & approachable. It's always a pleasure to deal with any member of staff, thanks & keep doing what your doing.

Alan Brocklehurst

A great bunch of people to do business with, would recommend you without hesitation.

Roy Pateman

Very pleased with your services—hassle free and a phone call will always sort out any problems.

Mike Burnett

I like the way queries and enquiries are dealt with quickly and politely. The service is excellent, thank you.

Derek Robinson

Very good service, excellent support, very easy to live with.

John Rothwell