I used Flanders Heating & Air Conditioning last week because of my A/C system not acting right. The tech told me that I would need a coil, and when I asked how much it was going to cost, their front office was quick in giving me an estimate. I thought that was good. I've been using them since 2013, ever since they installed my air conditioning system. Ever since then they've been coming out every year to check it, change the filters, and to let me know if there's anything wrong. Their techs are all very good, excellent workers and I plan to continue using them.