Our Accreditations

We hold a range of accreditations from various bodies including:

Construction Line

At the heart of what we do is our national online database, the UK's largest register for pre-qualified contractors and consultants. In terms of efficiency, time and cost saving and best practice, Constructionline is proven to deliver for public and private sector organisations alike.

CHAS Accredited Contractor

Each month thousands of contractors and consultants (suppliers) apply for work with public and private sector organisations (buyers). To win work, they must meet the buyer's health and safety standards. Assessing suppliers health and safety competence is usually a lengthy and time consuming process. Suppliers can sometimes meet one buyer's Health and Safety standards but not another. Being CHAS approved reduces duplication as suppliers compliance is accepted by all CHAS buyers.


NICEIC is the UK's leading voluntary regulatory body for the electrical contracting industry. It has been assessing the electrical competence of electricians for over fifty years and currently maintains a roll of over 26,000 registered contractors.

Glowing Testimonials From A Range Of Clients

DSE operates to the strict benchmarks set by NICEIC and in doing so has successfully met the rigid contract quality requirements of clients such as C.W. Davis Ltd, J.T. Dove, Caledonian Hotels, Wansbeck Homes, Frank Haslam Milan and British Gas.

Competitive, quality service

"Very pleased with the professionalism and quality of the work on our property. Highly recommended."

Mrs F Kelley

High quality

"Met all our requirements, efficient in doing so and competitive. Will be using for a range of other work we require."

Mr D Stones