McConnell operate as the Principal Contractor on most of the projects we undertake. We are an accredited and quality assured Principal Contractor and our management teams are highly experienced in delivering multifaceted building refurbishment, regeneration and associated new build projects, for a diverse group of clients in many different industries.

With a backbone of specialist services delivered by our own trades-people, supported by approved specialist subcontractors and overseen by a senior management team that has delivered more than £2bn of principal contracts in their careers, McConnell are a trusted provider of principal contracting services for some of the UK’s biggest property, infrastructure and facility owners.

We deliver principal contracting services to the following sectors:

  • Residential
  • Retail & Commercial
  • Industrial
  • Defence
  • Infrastructure & Utilities

Other Divisions


The McConnell roofing division delivers roofing and waterproofing solutions for buildings and facilities across the UK.

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McConnell has an in-house division specialising in the design and installation of building cladding and sheeting systems, primarily to replace or over-clad existing systems.

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McConnell started life in 1929 as a painting and decorating business and we have stayed true to our roots almost 100 years later, still providing painting, decorating and specialist coatings through our teams of directly employed skilled operatives.

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A wealth of knowledge and experience