I will not share with, or sell your personal details to any company or tradesman. After completing the work, If you don't mind, I would use your personal details, only, to get in touch with you and ask if you are happy with my work, and, if you want, and have the spare time, to leave a comment or review on my workmanship. Your feedback is very important for me, and drives me to provide high standard plumbing and heating services that you you deserve and expect. If you require any other tradesmen services which I trust as high standards workmanship, just let me know and I will pass you their contact information or, if you prefer, I will pass your personal details to them, only with your approval.