Welcome to Dennis Johns Service Group

Much has changed since we began providing security and electrical solutions to our public sector and corporate clients nearly 40 years ago.  We have expanded and innovated.  The technology we use is increasingly sophisticated. We ensure we exceed our clients’ requirements so that we can deliver the one-stop solutions which they have come to expect from us.  But, at the heart of Dennis Johns
Service Group, is a philosophy based on quality work, customer service and
competitive pricing.  We have evolved and our traditional values keep us ahead.

Contact Us

If you would like any further information or
assistance, please contact us at:
email. enquiries@dennisjohns.com
Telephone.  020 8985 7668