Belair Engineering and Service Company, Inc. is a woman-owned HVAC and plumbing company serving Washington, DC, and the surrounding Prince George's County area. Established in 1962, Belair offers a wide range of services including installation, repair, and maintenance of furnaces, heat pumps, boilers, air conditioners, mini splits, thermostats, and standby generators. The company is known for its comprehensive home comfort solutions and provides 24/7 furnace repair services to ensure customers have reliable heating whenever needed. With over six decades of experience, Belair combines licensed technicians and a strong local presence to support homes in Bowie, Crofton, Annapolis, and nearby communities.

Grove Heating & Cooling is an HVAC company serving Washington, DC, and nearby areas including Bowie, Crofton, and Annapolis. They provide a range of services such as furnace repair, air conditioner repair, heat pump repair, HVAC installation, and indoor air quality solutions. The company also offers geothermal heat pump installation and HVAC tune-ups. Grove Heating & Cooling is equipped to handle heat pump repairs at any time, including day or night service. They aim to support customers with reliable heating, cooling, and ventilation needs.

C.D. Shanahan's HVAC, Plumbing, Electrical & Remodeling LLC provides heating and cooling services in Washington, DC. They offer repair and installation for air conditioning, furnaces, heat pumps, boilers, and full HVAC systems. Their certified technicians bring extensive experience to each job, ensuring quality HVAC tune-ups and system maintenance. The company serves both residential and commercial customers in the area.

Lowe's Air Duct Cleaning provides air duct and dryer vent cleaning services in Washington, DC. They use professional tools and a powerful vacuum with a HEPA filter to remove dust, debris, and allergens from ducts and vents. The company offers before and after pictures as evidence of their cleaning results and recommends regular cleaning every four to six years to maintain indoor air quality. They also provide anti-microbial treatments as an add-on service. Additionally, Lowe's Air Duct Cleaning emphasizes dryer vent cleaning to reduce fire risks and improve dryer efficiency. The company follows standards set by the National Air Duct Cleaners Association and operates with flat-rate pricing and no upselling.

Regal Duct Cleaning, Inc is a duct cleaning company serving Baltimore, MD. They specialize in air duct and dryer vent cleaning using HEPA technology to improve air quality and reduce fire risks. Their team follows enhanced health precautions to ensure safety during service.

McDaniel Service, Inc is a family-owned HVAC and plumbing contractor serving Washington, DC. They provide a wide range of services including installation, repair, and maintenance of air conditioning, heating systems such as furnaces, boilers, and heat pumps, as well as duct cleaning and indoor air quality solutions. Their capabilities extend to plumbing services like water heaters, gas piping, and backflow testing. The company handles both residential and commercial projects, offering expertise in water treatment and advanced indoor air quality installations such as air purifiers and UV lights. All work is performed by licensed, in-house technicians who service all major brands.

K&K Air Duct & Dryer Vent Cleaning is a service provider based in Washington, DC, specializing in improving indoor air quality through various cleaning services. They offer air duct cleaning to remove dust and allergens, dryer vent cleaning to reduce fire risk and improve efficiency, chimney sweeping to enhance fireplace safety, mold sanitizing to eliminate harmful spores, and carpet and upholstery cleaning to restore freshness and comfort. Their services focus on enhancing airflow, safety, and overall air quality in homes.

Environmental Systems Associates is an HVAC, plumbing, and electrical service provider based in Baltimore, MD. Serving Howard County and surrounding areas including Columbia, Elkridge, and Ellicott City, they offer a range of services such as AC and furnace repair, installation, HVAC tune-ups, and indoor air quality solutions. Established in 1973, the company combines local expertise with national brand support from Service Experts. They provide 24/7 availability for urgent home system needs and emphasize precise installation and maintenance according to manufacturer standards.

Nelson's HVAC, LLC provides heating, ventilation, and air conditioning services in Washington, DC. They offer installation, repair, and maintenance for HVAC systems, including air conditioners, furnaces, and heat pumps. The company emphasizes indoor air quality and serves both residential and commercial clients. With over 21 years of experience, Nelson Revollo leads a licensed and insured team that operates in the Northern Virginia and Maryland suburban region. They recommend regular maintenance checks to keep systems running efficiently and provide thorough diagnostics and repairs when needed.

Bluestar Air Mechanical Inc. is an HVAC company serving Washington, DC, and nearby counties including Fairfax, Prince William, Loudoun, and Arlington. They provide a range of services such as air conditioning and furnace repair, heat pump installation, duct cleaning, thermostat installation, and HVAC tune-ups for both residential and commercial customers. The company is equipped to handle system replacements and maintenance, with specialized skills in mechanical duct repair and humidifier installation. Bluestar Air Mechanical Inc. has over 10 years of experience and offers 24/7 emergency service to address urgent HVAC needs.