To deliver high-quality, cost-effective projects on schedule by employing and supporting motivated, flexible, and focused teams. We value the importance of our relationships and will continue to remain fair and true in our dealings with all employees, clients, vendors, and partners. Our clients count on our dependability, our drive, and our integrity. We take great pride in our accomplishments and try to build on them every day.

Security Electrical Installations Ltd Electrical Contractors working throughout the UK

Security Electrical Installations Ltd was established in 1998 and has been trading since August 2002. The founding directors Mr. Paul Mercer and Mr. Alan Ogden each have over thirty years of experience in security and electrical contracting installation works.

We pride ourselves on delivering a quality service in support of our customers both pre and post contract. Our services include everything from specialist LED lighting designs and fibre optic installation to electrical testing and much more with national coverage.


Established in 2002

SEI is 21 years old with a vastly experienced team of contractors and directors.

Nationwide Cover

Based in Preston our contractors cover the whole of the UK.


We take on an apprentice every year to add to our skilled team.


Our contractors have full MOD security clearance and are fully CRB checked.

Vacancies and Apprenticeships

Our latest vacancies and apprenticeships are listed below. We take on an apprentice every year.
Preferably with a driving license and some previous learning in electrical works i.e. college or work experience.