Since 1984, MJB Heating and Cooling has been a family-owned and operated business founded in Derby, Kansas. We specialize in residential and commercial repairs, service, and installation. The difference in working with MJB comes from our quality workmanship and honest business approach. Our focus is simply, we want to provide our customers with the most affordable and effective option; as well as the best experience possible. There are countless people in Derby, Wichita, and surrounding communities that have been highly satisfied with our services; we would be honored to add you to that list! Let MJB Heating and Cooling be the company you can trust.