How do I open an account with Hamworthy Heating? Hamworthy Heating September 06, 2018 10:10 Updated Follow If you would like to open an account with Hamworthy Heating all you need to do is contact us. Please give us a call on 01202 662500 or use our contact form and we will be in touch. Related articles Do Hamworthy boilers contain asbestos? Comments 0 comments Please sign in to leave a comment.