M&J Group History
From Karmbey Limited to M&J Group (Construction & Roofing) Ltd — four decades of development.
Last verified: 5 October 2026
M&J Group has traded under several names since its incorporation in 1978. The company's evolution traces a path from a felt-roofing specialist to a broader construction and building-envelope contractor.
Historic Company Names
KARMBEY LIMITED
Original incorporation name (1978)
M & J FELT ROOFING LIMITED
Early trading name
M & J FLAT ROOFING LIMITED
Mid-period name
M & J GROUP (CONSTRUCTION & ROOFING) LTD
Current name
Exact name-change dates should be verified directly from Companies House filing history.
From Roofing Specialist to Construction Contractor
The company began as a felt-roofing specialist, expanded into flat roofing, and later broadened into general construction and building-envelope work. The current name — M&J Group (Construction & Roofing) Ltd — reflects this wider scope while retaining the roofing heritage.
Companies House — filing history and historic names [S006]