Veteran Owned, Maryland Experienced. We service all makes & models. 23+ years of providing cost-effective HVAC services throughout baltimore has earned peninsula cooling & heating 100's of repeat customers and great reviews from AngiesList, Yelp, and an A+ BBBrating. Call us today with any questions or to schedule an appointment. 100% County & State Licensed + Bonded A+ BBB Rating Call Today! Ask Us About Power Company Rebates... MD power companies have many incentive programs for consumer upgrades & installs. This is out business. If you have any questions about power company rebate programs, and how to maximize them, give us a call. Our Services Our expert, licensed technicians are trained to deliver the highest possible heating and cooling maintenance, repair and new installations. We work with a host of brand names, and have relationships that will save you time, and money. Whether it a Heat Pump issue, furnace diagnostics, or a new HVAC system, we are standing by to assist.