All they can to do was replace the gas hob and electric cooker in EXACTLY the same place as the my old, moody installer, spent ages muttering under his breath about wiring before declaring that the manufacturers specific for the hot zone was different from a.o online....and yet the hot zone is fine on standard hot zone and my previous gas hob has been there for 17 years, he didn't want to help, left my gas boiler on the wrong settings so I didn't have heating all morning and he broken the door on the gas meter outside and didn't bother to say, shitty old van he turned up in, absolutely awful, will never use again, stay well clear of this company.