- Gas Safety Check Baildon
- Gas Safety Check Barlby
- Gas Safety Check Barnard Castle
- Gas Safety Check Barnsley
- Gas Safety Check Barton-upon-Humber
- Gas Safety Check Batley
- Gas Safety Check Bedale
- Gas Safety Check Beverley
- Gas Safety Check Billingham
- Gas Safety Check Bingley
- Gas Safety Check Birtley
- Gas Safety Check Bolsover
- Gas Safety Check Bradford
- Gas Safety Check Brampton (South Yorkshire)
- Gas Safety Check Brandon (Durham)
- Gas Safety Check Bridlington
- Gas Safety Check Brigg
- Gas Safety Check Brighouse