J & M Heating & Cooling has been serving the Princeton, WV area for over 20 years. We are proud to serve our community by providing unparalleled service, competitive rates, and overall value to our customers. We serve the heating and cooling needs of residential, commercial and industrial clients. At J & M Heating & Cooling, we offer 24/7 emergency service for your air conditioning or heating needs. So, if your air conditioner stops working in the middle of a hot humid night, give us a call! There is not a brand of air conditioner or heater that we don’t service or repair, we work on all brands. We are fully licensed and insured and mostly serve Mercer County. Although we have customers all over the state and even some in Virginia. If you are having problems with your home comfort system, give us a call! We are here to help 24 hours a day, 7 days a week.