ROSA Heating and Cooling, LLC is an HVAC company based in Baltimore, MD, offering a range of heating and cooling services. They specialize in installing and repairing air conditioners, furnaces, mini-split systems, geothermal heat pumps, and provide indoor air quality services. The company also offers HVAC tune-ups and system monitoring using software and sensors to track equipment performance. ROSA Heating and Cooling serves multiple communities in Maryland and Pennsylvania, including Cockeysville, Glenville, Hampstead, and Towson. Their team is experienced in diagnosing complex issues, such as wiring problems and system compatibility, and they provide clear explanations and options to customers. The company is locally owned and emphasizes professional, certified technicians and convenient scheduling.

Len The Plumber Heating & Air, LLC is a full-service plumbing and HVAC provider based in Baltimore, MD. Serving Baltimore and surrounding counties, they offer a wide range of services including air conditioning, heating, plumbing, drain, and sewer repairs. The company specializes in HVAC installation and repair, with capabilities such as emergency heating and AC repair available 24/7 to address urgent needs. With over 25 years of experience, their licensed technicians handle everything from furnace and boiler installation to indoor air quality improvements and sewer line repairs.

L.A.N.E HVAC Mechanical is a family-oriented heating and cooling company based in Baltimore, MD. They offer a variety of services including installation, repair, and maintenance for air conditioners, furnaces, heat pumps, boilers, and general HVAC systems. With over 10 years of industry experience, the team provides tailored solutions to ensure comfortable environments in homes and workplaces.

Rowbel Services is an HVAC and electrical repair company serving Baltimore, MD, and surrounding areas. They offer a wide range of services including installation, repair, and maintenance of air conditioning, furnaces, heat pumps, boilers, and commercial rooftop HVAC units. With over 20 years of experience, they serve residential, commercial, and multi-family properties. Their team includes NFPA 70E trained electricians who handle electrical repairs and emergencies. Rowbel Services provides 24/7 availability for urgent HVAC and electrical needs, ensuring support during nights, weekends, and holidays.

Reliability Home Services is a licensed and certified provider of plumbing, heating, and air conditioning services based in Baltimore, MD. They offer a wide range of HVAC services including repair and installation of furnaces, heat pumps, boilers, air conditioners, and ductless mini-split systems. With over 20 years of experience serving the Dundalk area, the company emphasizes personalized solutions and craftsmanship to maintain home comfort and system efficiency. Their team is trained to handle common HVAC issues such as clogged air filters, malfunctioning thermostats, and refrigerant leaks. They also provide 24-hour emergency service for urgent plumbing needs.

Arundel Service Experts is an HVAC and home services provider based in Baltimore, MD, serving Maryland communities since 1971. They offer a range of services including air conditioning, furnace, and heat pump repair and installation, as well as HVAC tune-ups and indoor air quality solutions. The company is known for its licensed and ACE-certified technicians who deliver precise installations and maintenance. Arundel Service Experts operates with 24/7 scheduling availability, ensuring support whenever needed.

Quality Refrigeration Services, Inc. is based in Baltimore, MD, providing heating, cooling, refrigeration, and indoor air quality services. They specialize in geothermal heat pump installation and offer solutions for both residential and commercial needs. With experience in system integration, they also handle structured wiring, home automation, and climate control. Their geothermal heat pump services aim to improve home comfort and energy efficiency.

Dalton Air Conditioning Repair is a licensed and insured HVAC company serving Baltimore, MD. They provide a range of services including emergency AC repair, furnace service, duct cleaning, thermostat installation, and indoor air quality solutions. The company handles both residential and light commercial HVAC systems and offers eco-friendly options. Dalton Air Conditioning Repair is available 24/7 for emergency calls and employs NATE-certified technicians to ensure quality work.

All-Air Systems is a locally owned HVAC company serving Baltimore, MD, and surrounding areas including Anne Arundel County and parts of Pennsylvania. They specialize in residential heating, air conditioning, and water heater services, offering installation, repair, and maintenance for systems such as traditional split AC units, heat pumps, furnaces, geothermal systems, ductless mini splits, and boilers. The company is a certified SpacePak installer and provides oil-to-gas conversions and gas line installations. Founded and led by a second-generation HVAC tradesman, All-Air Systems emphasizes accurate system diagnosis and quality workmanship. They also offer 24/7 emergency response for urgent HVAC needs.

ITB Heating & Air Conditioning is a family-owned HVAC company serving Baltimore, MD, and nearby areas including Glen Burnie, Columbia, and Montgomery County. They provide a range of services such as AC repair, furnace repair, heat pump installation, ductwork installation, and thermostat services. With over 45 years of combined experience, their licensed tradesmen focus on delivering efficient and reliable HVAC solutions. The company is known for thorough site evaluations and detailed system installations, including smart thermostat setups.