Dear …
Please accept this as our formal announcement, that effective __(date)__, __(Name of company)__ will no longer be offering the service of __(type of service)__. Instead, we have decided to focus all of our efforts in the area of __(type of service(s)__. This restructuring, we believe, will benefit our customers as we continue to grow our expertise in __(that/those)__ area(s).
It is important to us, however, that our customers continue to receive good __(type of service)__, so we are pleased to announce that our former employee, __(Name)__, will now be offering this service. __(He/She)__ has already had considerable experience with __(type of service)__during __(his/her)__ employment with us and has managed to build a superior level of competence. We encourage you to contact __(name)__ at __(phone #)__ for your __(type of service)__ requirements. We are confident that you will find __(him/her)__ to be professional in every regard.
It has been our pleasure to serve you over the years and we thank you for all your support. __(name of company)__ is looking forward to a continued relationship with you as we provide you with the kind of focused expertise you deserve for all your __(type)__ needs.
Sincerely,