We would need to know the kind of contractor in order to answer your question.
The main question that a person should ask when hiring a general contractor is if they have a license. Another great question is asking for references or a portfolio.
A local contractor can answer your question.
It's just a job description like plumber, electrician etc. So could be an employee working for a company or a self-employed contractor. If not self-employed, the fitter in question would be defined as working for the contractor, the contractor being the company who took on the work.xx
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This is an exceedingly vague question. In the most general terms, contractors are hired by whoever needs the services the contractor provides. The most familiar type of contractor to most people is a building contractor, but there are many types of contractors who are hired for a specific job (often for a few hours a week, or on an irregular schedule) as opposed to being regular employees.
You have not provided enough information to answer your question.
Question needs to be more specific; which community is being referred to, specifically.
This is a good question and it has more questions layered within it that you probably didn't realize. An article that will help you with this question was written on the Lien Blog, and you can read it in the related link for further information. Can A Contractor File A Mechanics Lien If They Didn't Finish The Work?
It's "contratista." It can be either male [el] or female [la], depending on the gender of the "contratista" in question.
The things you need to ask a fence contracter varies based on the details of the job. The only question that needs to be asked on every job no matter how small is if the contractor insures his work.
That question brings no easy answer. I posted a good article on the federal reverse to you to check out.