Dear …

RE: Installation Job - __(type of product)__ Location: __(Address)__

I wish to inform you of a situation that has gone unresolved now for __(# weeks/months)__. On __(date)__ our company purchased __(type of product)__ from __(name of company)__, which was installed on __(date)__. I cannot tell you how disappointed we have been with the poor quality of this installation job and the subsequent poor service we’ve encountered from your company ever since.

After the installation workers finished the job, we noticed that the __(briefly describe what part of the job is defective)__. As soon as defective workmanship was brought to my attention, I immediately contacted your office by phone to arrange to have it __(repaired/completed properly)__. To my surprise, it has appeared that nobody within your company is willing respond to this matter.

After __(repeated calls / # of calls)__ to your office since __(date)__, and having left __(# /several)__ messages, I have still not had a response from anyone from your organization. This has become increasingly disturbing to me. Can it be that your company is not willing to stand behind its workmanship?

I am asking you to look into this matter for me, __(name)__, hoping that we will be able to resolve it without further delay. I look forward to hearing from you soon.

Yours truly,