Although there are competitors who have more favorable prices for materials or service, McCarthy does extremely high quality, reliable work, which offsets any concern I might have had about cost. They completely replaced my heating and air conditioning systems within 24 hours of my old systems failure, and they did it professionally despite extremely cold weather. Where I could perhaps have found a cheaper system to meet my needs, it could not have happened without a lot of hassle and wait.. McCarthy took those concerns away.