- Air Source Heat Pumps 51
- Bathrooms / Bathroom Fitters / Bathroom Installers 37
- Battery Storage Systems 1
- Bedrooms / Bedroom Fitters 1
- Biomass Boilers 13
- Boiler Servicing and Repairs 2
- Builders 9
- Care and repair/Home improvements 1
- Carpenters & Joiners / Carpentry & Joinery 4
- Cavity Insulation 2
- Cavity Wall External Insulation 1
- CCTV Drain Surveys 1
- Central Heating Engineers 68
- Central Heating Power Flush 1
- Conservatories 1
- Disabled Equipment 1
- Door Repairs 1
- Double Glazing 1
- Drain Cleaning & Unblocking 4
- Drainage Contractors 1
- Drains - Root Removal 1
- Electric Storage Heaters 3
- Electrical Test & Inspection 1
- Electricians 54
- Estate Agents 1
- External Wall Insulation 1
- Floor Insulation 4
- Gas Engineers 39
- Gas Fired Condensing Boilers 10
- Gas Safety Checks for Landlords 2
- Geothermal Heating Systems 1
- Glass / Glazier / Glazing 2
- Ground Source Heat Pumps 32
- Gutter Cleaners / Gutter Cleaning 2
- Handyman / Handyperson 1
- Heat Pumps 4
- Heating & Hot Water Controls 19
- Heating Engineers 4
- High Pressure Drain Clearing 1
- Home Adaptations - Elderly and Disabled 11
- Joiners 2
- Kitchens / Kitchen Fitters / Kitchen Installers 7
- Lead Roofing 1
- Leadwork Specialist 2
- Loft Conversions 1
- Loft Insulation 7
- LPG Heating 1
- Oil Fired Boiler Service Repair & Installation 10
- Oil Fired Condensing Boiler 11
- Oil Fired Heating 10
- Oil Tank Installers / Installation 2
- Painters & Decorators / Painting & Decorating 3
- PAT Testing 1
- Plasterers / Plastering / Renderers / Rendering 3
- Plumbers / Plumbing 87
- Plumbing Specialists 12
- Property Maintenance 3
- Pumps 1
- Radiators 2
- Renewable Energy 1
- Retrofit Assessor 4
- Roofers / Roofing 1
- Room in Roof Insulation 3
- Servicing & Repairs 1
- Showers 1
- Solar Panels 24
- Solar PV 20
- Solar Thermal 19
- Tap repairs / Tap replacement 1
- Tilers / Tiling / Grouting 9
- Toilet Repairs 1
- Under Floor Heating 1
- Wall Insulation 4
- Wetrooms / Wetroom Installation 4
- Window Repairs 1
- Windows / Window Fitters 3