No matter the location, no matter the challenge, GMG provide reliable building refurbishment solutions for a host of clients, large and small.

From tiling, to cavity wall insulation, window and door repair, plumbing, joinery, plastering, brickwork and more, we keep buildings working on a routine, recurring or one-off basis.

Depending on their design, quality of materials and workmanship, function and location, buildings deteriorate at different rates and require different levels of attention.

Refurbishment will ensure that a building’s lifespan is extended to the maximum and its appearance enhanced.



  • Underpinning
  • Drainage
  • Screeding including granolithic anhydrite screed
  • Tracking
  • Foundations


  • Cavity wall insulation
  • Brickwork and concrete repairs
  • Window and door replacement
  • Dry lining
  • TV/satellite alterations
  • External wall insulated render systems
  • Cast-iron and uPVC gutter replacement
  • Shiplap cladding
  • Seamless copper/aluminium gutter replacement
  • Fascia and soffit replacement
  • Flat roof insulated systems
  • Flat to pitched-roof conversions
  • Loft/rafter Insulation
  • Slate-effect roofing
  • Concrete roof tiling
  • Standing seam roofing
  • Replacement of rainwater goods
  • Plumbing works
  • Lightweight metal profile roofing
  • Wall-tie replacement
  • Mortar repairs and pointing
  • Crack-stitching
  • Parging
  • Traditional render systems
  • Internal wall insulation
  • Oversill replacement
  • Rot eradication
  • Plaster works
  • Bitumen systems
  • Single plu
  • Liquid plastics
  • Slating
  • Zinc roofing
  • Leadwork
  • Electrical works
  • Joinery works