contractor did not pay to subcontractor

Since this was a School renovation and therefore prevailing wage applied, the contruction job is very likely bonded and if you are a subcontractor you should be able to file a claim against the bond. It sound like you are a sub-subcontractor (that is you are not working for the contractor, but a subcontractor).  Different rules may apply. Also be aware that some standard contracts include a "pay when paid" clause. This means that even though you did everything you were to do, your contraoctor doesn't have to pay you until it is paid. Case specific information would be needed to be able to determine if that is applicable to your case and is enforceable. There are also statutory specfic provisions regarding Contractor and Subcontractor Payment Obligations.   All matters are dependent upon all of the facts and circumstances of each situation, and there are factors which may cause a general rule or principle set forth in any response or the information in any memoranda to differ for your situation or inquiry. The provision of a response or other information is not intended to provide legal advice or counsel to you, and is not intended for you to take or refrain from any action. This response does NOT create an Attorney-Client relationship