I would request that you not leave a negative rating to ask a follow up question. It affects my standing on the site and I am happy to answer your follow up questions until you are satisfied.
Additionally, while you may be quite familiar with your situation, I have only the information provided in you question and I nave no way of knowing what you know or do not know.
You asked for the remedies available. You can file a suit in small claims
court, most likely, for breach of your lease. That is the remedy available to a tenant when the landlord violates the warranty of quiet enjoyment. A constructive eviction required that you physically vacate the premises, which you indicate you are unwilling to do.
Small claims court, as I am sure you are aware, is more user friendly than regular court and is designed to be accessible to the public without an attorney. The clerk of the court in your county will have the summons and complaint forms you need to file to commence the case.
As an additional remedy, you can call the local police to cite the contractors if they begin construction activity prior to the time allowed in local ordinance.
I hope this is helpful. If you have more follow up questions please let me know. It is never a problem.