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Derek LOFTY & Associates (DLA) is an established family firm of civil and structural engineers providing innovative engineering solutions to a variety of structural problems. Working with all principle building materials, our track record has earned us an excellent reputation amongst both our domestic and commercial clients and partners. All of our work is on recommendation. Derek LOFTY & Associates is proud to offer you over 30 years of technical ability, experienced project management and sincere commitment to your complete satisfaction.
About Us

Over 30 years of engineering excellence

Based near Watford with easy access to the M25, we work on projects throughout London, the South East and across the UK.

Our portfolio is split between home owners, Architects, Surveyors and Commercial Clients. Our work is varied, covering most aspects of Structural Engineering and the construction industry.

With our expertise, knowledge and working relationships we are able to adapt to meet client requirements, be it working in isolation or with your chosen team of professionals. We would also be happy to introduce you to our tried and tested associates with whom we’ve worked over the years.

We deliver efficient engineering solutions tailored to your needs, from minor domestic alterations to multi-unit housing, commercial and industrial projects.

Why Choose Us?

A family run business of civil and structural engineers established in 1983 that offer a personal and dedicated service to each Client.

Request a quote

Complete our simple form, upload any photos or plans you may have and we’ll endeavour to get back to you with 48 hours.


Design, surveys and reports, renovation, extensions, conversions, party walls and drawings.


Residential, commercial, transport, roads, retaining walls and marine engineering.


Site investigations, foundations and ground engineering.