Our history

McGill’s story

McGill was founded in 1981, and has been delivering for customers across Scotland ever since. With a Scotland-wide footprint and an all-trades approach, McGill has spent the last four decades building a strong reputation as a contractor which consistently delivers quality work.

On 1st February 2019, McGill entered administration after a few years of difficult trading conditions. United Capital, an investment company in the construction and facilities management sector, quickly became KPMG’s preferred bidder, and officially acquired the company in March of that same year.

United Capital set to work quickly righting the direction of McGill, streamlining costs and processes, and making sure the right leaders were in place to take the business forward. One of the earliest priorities for the new McGill was to become a living wage employer, cementing its reputation as a company working with and for the community.

Alliance Electrical Services’ story

Shortly after acquiring McGill, United Capital brought Angus-based company Alliance Electrical Services into the growing group.

  • 1995


    AES founded and has since grown into a well-established and trusted electrical contracting business.

  • 1996


    Alliance introduced a Fire and Security division, installing smoke detectors, CCTV, door entry systems, security systems, emergency lighting, and many more features, for domestic and commercial customers.

  • 2007


    With customer demand growing, the company created a Renewables Division. It has since delivered air source heat pumps, electric vehicle charging points, solar panels and solar battery storage for hundreds of customers.

  • 2012


    Continuing its growth, Alliance created a plumbing and heating division, which installs bathrooms, provides boiler installation and maintenance, showers, and solar water heating, for domestic and commercial customers.

  • 2018


    Alliance demonstrated its green credentials with its fleet of electric vehicles.

  • 2019


    Alliance Electrical Services was acquired by United Capital.

Constructing the future together

Since acquisition and throughout the difficult pandemic period McGill and Alliance each continued to thrive, and have successfully collaborated on a number of projects. It soon became clear that by bringing the companies together, they could form a new and powerful contractor with Scotland-wide coverage and a reputation for quality. With the focus on delivering excellence and a partnership experience for clients, the newly-formed company trades under the McGill name, and brings a combined 65 years of experience with it. McGill is now fully committed to constructing the future together with its customers.