Finding a reliable air conditioning contractor in Plano, TX is crucial for comfort during hot weather.To choose the best contractor, compare price estimates, research reputations, and verify qualifications.Ask for in-person price estimates rather than over-the-phone to ensure accuracy.Avoid always opting for the cheapest estimate as it may lead to low-quality services.Conduct thorough research by checking reliability through customer feedback, BBB complaints, and referrals.Ask for referrals from friends, trade organizations, and the contractor itself to gauge their performance.Consider reputation, credibility, and experience of the contractor before making a decision.Ensure the contractor has the necessary licenses, certifications, and insurance for credibility and safety.Home evaluation is crucial for selecting the right air conditioning unit and ensuring proper installation.Choosing a contractor with over five years of experience and availability for assistance is advisable.