Discover unparalleled comfort with Holtzople Heating, Air Conditioning & Electrical Services – your premier frederick hvac company dedicated to exceptional heating and cooling solutions in Frederick, MD. Led by industry veterans Jerred and Vicki Holtzople for over 30 years, our family-run operation prides itself on offering an array of HVAC services tailored to meet your specific needs. Whether it's advanced Aeroseal Duct Sealing to optimize your system's efficiency or installation of high-performance heat pumps for year-round comfort – we've got you covered. Embrace eco-friendly living with our Geothermal systems or enjoy consistent warmth with both oil and gas boilers at your disposal. Our expertise extends to installing cutting-edge ductless mini-splits perfect for spaces where traditional ductwork isn't feasible. As a Google Nest Pro partner, we seamlessly integrate smart technology into your home environment while ensuring the air you breathe is clean and healthy through our robust selection of humidifiers & air cleaners.