In business since 1901, MHS has been proudly serving Escondido for many years. Whether you need an installation, repair or maintenance service, we are here to help. MHS Heating & Air Conditioning is a full Service Heating and Air Conditioning Company. We do furnace and HVAC Repair. Our company also offers free estimates for replacement systems! Friendly, quality service team! Give us a call today! We are here to help!