If you are looking to install a heating or air conditioning system or perhaps both, you will need a professional heating and air conditioning contractor. How do you go about finding the best one? Thankfully there are a number of things you can do to protect yourself from people who are less than professional.You need to make sure that the company and individual you are dealing with is properly bonded and insured. Never let a contractor from any trade onto your property without first confirming this as if he was to have an accident and be injured or worse you could find yourself being sued.If you have not been given a personal recommendation to the company be sure to ask for referrals from their existing clients. In particular you will want to speak to clients who have had similar jobs to yours done. There is really no point in you speaking to someone who had a heat pump installed if you only want air conditioning done. Another option you have is to check the company out with the Better Business Bureau. Professional companies will be happy to give you the details of satisfied customers and will understand why you are asking these questions.Always ask for a fully itemized quote which should include everything relevant to the job in question. You want to know the costs of all the parts as well as the labor and the time line the job is expected to be completed within. It is not always a good idea to engage a company on price alone. You need to feel comfortable around their staff as after all they will be in your home for a certain period of time. You should feel as if you matter to their business rather than just being another order in the book. If you feel that they can’t be bothered spending time answering your questions, then it doesn’t matter if they are the cheapest. You will probably not be happy with the job they do. Your instinct should play a part in the decision making process.