This letter should be sent certified mail, return receipt requested. Always keep a copy of any document to send to another party.
1234, Main Street
Boston, MA 02123
06 April, 2005
<Recipient Address Goes Here>
On <date>, I mailed you a letter asking that you pay the cost of repairing the damage you did to my property when you <description>. The amount of said repairs is <$ amount>. The return receipt I received from the post office indicates you received my letter on <date>. To date, I have not had any response from you.
Please consider this letter a formal demand that you remit to me <$ amount> in the form of a check made payable to <your name or the name of repair person> to pay for the repairs described above. If, for some reason, you are unable to pay this amount or if you dispute my complaint, please contact me as soon as possible so we may discuss this matter. If I do not hear from you within ten days of your receipt of this letter, I will have no choice but to seek legal recourse.
I look forward to hearing from you.
encl: <List of enclosed items goes here>