Many people in our industry make impressive claims as to why they lead the sector. But only a handful of companies are, like ourselves, in a position to support those claims with tangible evidence.
It’s for this reason that we believe we’re ideally placed to deliver the solutions and services you need. And it’s why we believe we’re ready to drive standards in our industry higher than ever before.



As a long-established domestic mechanical and electrical sub-contractor John N Dunn Group Ltd provides sub-contract plumbing, heating, electrical, security systems and renewable energies services to the construction industry, including contracting services for property developers, housing associations, ALMO's and RSLs (specialising in 'decent homes' refurbishments) and M&E installations for commerical, industrial, retail and leisure businesses throughout the North of England and Scotland.
