Smoking cessation Stopping smoking is an important and worthwhile decision. No matter how long you have smoked for, quitting can help both your physical and mental health immediately. WDP offers a free and confidential stop smoking service in the London Borough of Harrow. Our team at WDP Harrow provides regular support by phone or online. They also offer free nicotine replacement therapies and other stop-smoking medicines. Our advisors will be able to recommend which product or combination of products could work best for you. You are 4 times more likely to quit smoking with expert help so if you are ready to quit or would like more information, get in touch.