First, check whether the contractor is properly licensed. It is always good to work with a pool repair company that is licensed to operate in your city or state. Before hiring, ask to see the licenses in order to confirm their validity.
Secondly, check on experience level. If possible, look for contractors who have been around for many years. Make sure the contractor repaired similar pools in the past. Favor well-established companies that have been in business for long.
Again, consider asking for some references. Before enlisting the services of any pool contractor, it is good to ask for some referees. Call those people you are given as references and inquire about their experiences with the service provider in question.
Further, check whether your prospect contractor is fully insured. It is always good to hire a properly and adequately insured company. Ask for a proof of insurance before making that vital decision of hiring.
Lastly, consider asking for a written work contract after selecting a contractor to undertake your project. Before appending your signature on the document, make sure all the details about your project are intact. If everything is okay, then allow the expert to work on your swimming pool.