Remember that all work carried out by our qualified and insured engineers carries our gurarantee. CORGI gas registration is no longer valid or recognised by law in these regions. To work legally on your gas appliances and installations your engineer must be on the Gas Safe Register. Potterton Baxi specialists with over 30years experience and British Gas training you can rest assured that your system / boiler will be looked after no matter how new or old. AN Plumbing & Heating services are able to offer services from 1st fix on a new development right through to mature system servicing and maintenance.