Are you up for the b&m challenge? For general enquiries lines are open 8am to 8pm weekdays, 8am to 4pm saturday and 10am to 4pm sunday. Questions regarding your boiler cover? we've got them answered. Gas fires and cookers can be fickle things and whether you need assistance with installation, maintenance or repairs, it pays to do things right our accredited south thames gas engineers cover the local area, working from croydon to lewisham, clapham to herne hill, making us the best gas fire.