The HVAC industry in Maryland is essential for ensuring comfortable and safe indoor environments, covering heating, ventilation, and air conditioning. Companies in this sector range from small operations to large firms, providing services like system installation, maintenance, and repairs for residential and commercial clients. A noteworthy trend is the growing focus on energy efficiency and sustainable solutions, with many companies deploying advanced technologies. As the demand for indoor air quality rises, Maryland's HVAC companies face opportunities to innovate and expand their service offerings in eco-friendly installations and smart home integrations, reflecting ongoing advancements in building management.

This list features a mix of HVAC companies throughout Maryland, highlighting various aspects such as size, client focus, and specializations. With firms ranging from small family-owned businesses like Clean Air Heating & Air Conditioning, founded in 1972, to larger entities like R.E. Michel Company, established in 1935, these companies exemplify a broad spectrum of experience. Their geographical presence spans from urban areas in Baltimore to suburban locations in places like Gaithersburg. Whether focusing on residential comfort or commercial efficiency, each company contributes uniquely to Maryland's HVAC landscape.

Continue reading to explore the top HVAC companies in Maryland.

Top 22 HVAC Companies Companies in Maryland

1. Clean Air Heating & Air Conditioning Co.,Inc.

• Website: cleanairhvac.com
• Ownership type: Family Owned
• Headquarters: Baltimore, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1972
• Headcount: 51-200
• LinkedIn: clean-air-heating-%26-air-conditioning-co.-inc.

Clean Air Heating & Air Conditioning Co., Inc. is a family-owned service company based in Baltimore, Maryland, specializing in HVAC solutions since its establishment in 1972. With a workforce of approximately 51-200 employees, the company has grown from its humble beginnings in a small garage to a substantial operation with a 27,000 square foot facility. They provide comprehensive services, including installation, repair, and maintenance of heating and cooling systems for both residential and commercial clients. Clean Air is dedicated to enhancing indoor comfort and air quality, serving a wide range of areas in Maryland. Their commitment to customer service is reflected in the numerous positive testimonials from satisfied clients, showcasing their reliability and expertise in the HVAC field.

2. Grove Heating and Cooling INC

• Website: grovehvac.com
• Ownership type: Family Owned
• Headquarters: Davidsonville, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2004
• Headcount: 11-50
• LinkedIn: grove-heating-and-cooling-inc

Grove Heating and Cooling INC, based in Davidsonville, Maryland, is a family-owned HVAC service company established in 2004. With a team of 11 to 50 employees, the company specializes in providing comprehensive heating, cooling, and indoor air quality solutions tailored to the needs of residential and commercial customers. Their service offerings include installation, repair, and maintenance of various HVAC systems, such as air conditioners, furnaces, heat pumps, and geothermal systems. Grove Heating and Cooling is dedicated to ensuring comfort and efficiency for its clients, and it has built a reputation for exceptional customer service. The company operates primarily in Maryland, serving areas like Bowie, Crofton, and Annapolis, and emphasizes the importance of trust and reliability in its operations. Their proactive approach includes offering maintenance plans and financing options to enhance customer satisfaction and accessibility.

3. American Mechanical Services

• Website: amsofusa.com
• Ownership type: Private
• Headquarters: Laurel, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1997
• Headcount: 501-1000
• LinkedIn: amsofusa.com

American Mechanical Services (AMS) is a private company based in Laurel, Maryland, specializing in HVAC maintenance, repair, and installation, as well as plumbing services. Founded in 1997, AMS has grown to employ between 501 and 1000 individuals, reflecting a robust operational capacity. The company primarily caters to commercial clients, including property managers and facility directors, ensuring reliable building operations through their expertise in mechanical systems. AMS operates in various locations across the United States, including major markets such as the greater Washington, D.C. area, Texas, and California. Their service portfolio includes detailed maintenance programs designed to extend equipment life and enhance operational efficiency. AMS prides itself on delivering quality customer service around the clock, supported by a team of highly skilled and safety-focused technicians. The company has a strong commitment to integrity and value, which is evident in their mission to provide quality workmanship for a fair price. With a focus on complex construction and repair projects, AMS has positioned itself as a trusted partner in the HVAC industry, particularly in the renovation and retrofitting of older and occupied structures.

4. Advanced Heating & Cooling

• Website: advancedhc.com
• Ownership type: Private
• Headquarters: Owings Mills, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2006
• Headcount: 11-50
• LinkedIn: advanced-heating-%26-cooling-llc

Advanced Heating & Cooling, based in Owings Mills, Maryland, is a privately owned company specializing in commercial HVAC solutions. Founded in 2006, the firm has built a reputation for providing installation, maintenance, and repair services tailored to the needs of businesses across various sectors. Their expertise spans from traditional heating and cooling systems to advanced geothermal solutions. The company prides itself on its customer-centric approach, offering preventive maintenance plans designed to enhance system efficiency and longevity. With a team of experienced technicians, Advanced Heating & Cooling aims to ensure that clients maintain a comfortable and safe environment. Their service portfolio includes work in manufacturing, healthcare, retail, and construction, showcasing their ability to adapt to different industry requirements. The company has not reported any funding, indicating a self-sustained growth model.

5. R.E. Michel Company, LLC

• Website: remichel.com
• Ownership type: Private
• Headquarters: Glen Burnie, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1935
• Headcount: 1001-5000
• LinkedIn: r-e-michel-company-inc-

R.E. Michel Company, LLC, based in Glen Burnie, Maryland, is a prominent wholesale distributor specializing in HVAC and plumbing supplies. Established in 1935, the company has built a robust network of physical branches throughout the United States, catering primarily to contractors and businesses in the HVAC industry. Their extensive product offerings include boilers, chemicals, refrigeration equipment, and various components essential for the installation and maintenance of heating and cooling systems. R.E. Michel Company is dedicated to providing quality materials and support to HVAC professionals, ensuring they have access to the tools and resources necessary for effective service delivery. The company also engages in programs such as energy rebates and inventory management, further enhancing its value proposition to clients in the HVAC sector.

6. GAC Services

• Website: gacservices.com
• Ownership type: Family Owned
• Headquarters: Gaithersburg, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1970
• Headcount: 51-200
• LinkedIn: gacservices

GAC Services, based in Gaithersburg, Maryland, is a family-owned company that has been serving the HVAC, plumbing, and electrical needs of the community since 1970. With a workforce of approximately 53 employees, GAC Services focuses on delivering reliable and efficient solutions to both residential and commercial customers across Montgomery, Frederick, and Howard Counties. The company prides itself on its commitment to customer comfort and safety, offering a comprehensive suite of services that includes air conditioning maintenance, heating system installation, plumbing repairs, and electrical upgrades. GAC Services has built a reputation for professionalism and quality, supported by a team of licensed technicians dedicated to ongoing training and customer satisfaction. Their operational model includes emergency services and maintenance memberships, which further enhance their service offerings. GAC Services is recognized as a Bryant® Factory Authorized Dealer, underscoring their credibility in the HVAC market.

7. Quality Air Services

• Website: qualityairservices.com
• Ownership type: Private
• Headquarters: Rockville, Maryland, United States (USA)
• Employee distribution: United States (USA) 88%, Brazil 12%
• Founded year: 1998
• Headcount: 11-50
• LinkedIn: quality-air-services

Quality Air Services, based in Rockville, Maryland, has been a prominent player in the HVAC industry since its founding in 1998. With a workforce of approximately 33 employees, the company specializes in heating and cooling solutions tailored for both residential and commercial clients. Their extensive service offerings include heater repair, air conditioning installation, and preventative maintenance, catering to the needs of homeowners and property managers alike in the Washington DC Metro area. Over the years, Quality Air Services has built a reputation for reliability and customer satisfaction, focusing on the unique requirements of multi-family housing and commercial properties. Their commitment to maintaining high standards of service and expertise in HVAC systems has solidified their position as a trusted partner for clients seeking efficient indoor comfort solutions.

8. Bge Home

• Website: bgehome.com
• Ownership type: Private
• Headquarters: Baltimore, Maryland, United States (USA)
• Founded year: 2022
• Headcount: 201-500
• LinkedIn: bge-home

Bge Home, now known as Constellation Home Products & Services LLC, is a home services provider based in Baltimore, Maryland. Established in 2022, the company specializes in heating, cooling, plumbing, and electrical services, ensuring comfort and safety for homeowners. With a workforce of approximately 164 employees, Bge Home operates through a network of certified technicians who deliver prompt and reliable service. The company offers a comprehensive range of products and services, including air conditioning systems, water heaters, and home service plans. Their commitment to customer satisfaction is evident in their service offerings, which include emergency repairs and regular maintenance. Bge Home serves various regions, primarily focusing on residential clients, and has built a reputation for quality service in the HVAC industry.

9. Aj Michaels Company

• Website: ajmichaels.com
• Ownership type: Family Owned
• Headquarters: Baltimore, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1978
• Headcount: 11-50
• LinkedIn: aj-michaels-company

A.J. Michaels Company, based in Baltimore, Maryland, is a family-owned service provider specializing in HVAC, plumbing, and home performance solutions. Established in 1978, the company has built a reputation for delivering high-quality heating and cooling installations, plumbing repairs, and energy audits. They cater to both residential and commercial clients, emphasizing comfort and efficiency in their services. A.J. Michaels is recognized for its commitment to energy efficiency, having received accolades such as the Century Club Award from the Department of Energy for energy savings achievements. The company also holds Master's licenses in plumbing, heating, air conditioning, and electric, ensuring that their technicians are well-equipped to handle a variety of systems. Their proactive approach includes offering planned service agreements, which provide customers with regular maintenance and priority service. With over 35,000 systems installed in central Maryland, A.J. Michaels has demonstrated a strong commitment to customer satisfaction and community engagement.

10. Boothe's Heating, Air, Plumbing, Drains & Electrical

• Website: boothehvac.com
• Ownership type: Corporate
• Headquarters: Hollywood, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: August 2021
• Founded year: 1993
• Headcount: 51-200
• LinkedIn: boothe%27s-heating-%26-air-conditioning-llc

Boothe's Heating, Air, Plumbing, Drains & Electrical is a service-oriented company based in Hollywood, Maryland, specializing in HVAC, plumbing, and electrical solutions. Established in 1993, the company has built a reputation for quality service and customer satisfaction. They cater to both residential and commercial clients across Southern Maryland, ensuring comfort and safety in various properties. Boothe's offers a wide array of services, including heating and air conditioning repairs, plumbing maintenance, and electrical installations. Their Comfort Club membership provides customers with regular maintenance and priority service, reflecting their commitment to long-term customer relationships. The company has been recognized as one of the Top 10 Rheem Pro Partner Dealers in the nation, underscoring their expertise and reliability in the industry. Boothe's operates with a focus on energy efficiency and sustainability, helping clients make informed decisions about their home systems.

11. J&J Mechanical, Inc.

• Website: jjmechanicalhvac.com
• Ownership type: Private
• Headquarters: Belcamp, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2005
• Headcount: 11-50
• LinkedIn: j%26j-mechanical-inc.

J&J Mechanical, Inc., based in Belcamp, Maryland, has been providing heating and air conditioning services since its inception in 2005. The company caters to both residential and commercial clients, offering a comprehensive suite of services that includes new installations, maintenance, and repairs. With a dedicated team of 24 employees, J&J Mechanical focuses on delivering superior service across Maryland, Virginia, Delaware, and Pennsylvania. Their commitment to customer satisfaction and operational excellence positions them as a reliable option for HVAC solutions in their service areas. The company has not reported any funding, indicating a self-sustained business model that has allowed them to thrive in a competitive market.

12. C. Albert Matthews INC.

• Website: calbertmatthewsinc.com
• Ownership type: Family Owned
• Headquarters: Easton, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1922
• Headcount: 1-10
• LinkedIn: c-albert-matthews-inc-

C. Albert Matthews INC. is a well-established home services company based in Easton, Maryland, specializing in HVAC, plumbing, and electrical services. Founded in 1922, this fourth-generation family-owned business has built a reputation for quality and customer satisfaction over the past century. They cater to both residential and commercial clients, offering a comprehensive range of services including installation, maintenance, and repair of heating and cooling systems. The company operates primarily in the Mid-Shore area of Maryland, where they are known for their commitment to quality workmanship. C. Albert Matthews INC. is recognized as a Carrier Factory Authorized Dealer and has received the Carrier President’s Award multiple times, underscoring their expertise in the HVAC field. Their focus on customer service and community engagement further solidifies their standing in the industry.

13. S&W Controls, Inc.

• Website: sandwcontrols.com
• Ownership type: Family Owned
• Headquarters: Upper Marlboro, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1989
• Headcount: 11-50
• LinkedIn: sandwcontrols

S&W Controls, Inc. is a family-owned HVAC service company based in Upper Marlboro, Maryland, with a focus on HVAC controls, building automation, and energy management. Established in 1989, the company has built a reputation for providing installation, service, and maintenance to both commercial and government clients in the Washington, DC metropolitan area. With a workforce of 11-50 employees, S&W Controls prides itself on its commitment to customer service and competitive pricing. The company specializes in retrofitting and upgrading existing systems, ensuring energy efficiency and cost savings for its clients. Their project portfolio includes work for prominent institutions such as Georgetown University Hospital and the Smithsonian Museum, showcasing their capability to handle complex projects. S&W Controls is affiliated with Steamfitters Local Union 602, which underscores their dedication to quality craftsmanship and skilled labor in the HVAC industry.

14. Modern Comfort

• Website: moderncomfortsystems.com
• Ownership type: Family Owned
• Headquarters: Westminster, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1934
• Headcount: 51-200
• LinkedIn: modern-comfort-systems-inc-

Modern Comfort, established in 1934, is a family-owned business based in Westminster, Maryland. The company specializes in HVAC and plumbing solutions, catering to both residential and commercial clients across Maryland and Pennsylvania. Their service offerings include installation, maintenance, and repair of heating and cooling systems, as well as a variety of plumbing services. Modern Comfort prides itself on its customer-centric approach, providing service plans that ensure timely maintenance and emergency support. With a workforce of approximately 21 employees, the company has built a reputation for reliability and expertise in the HVAC industry. Their commitment to quality service is reflected in their extensive service area and the number of homes serviced annually, which stands at around 15,000. Modern Comfort also embraces modern technology, offering smart home plumbing solutions that enhance efficiency and convenience for their customers.

15. Anchor Mechanical LLC

• Website: anchormech.com
• Ownership type: Family Owned
• Headquarters: Forest Hill, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2012
• Headcount: 201-500
• LinkedIn: anchor-mechanical-llc

Anchor Mechanical LLC, based in Forest Hill, Maryland, is a family-owned service company that specializes in HVAC and plumbing solutions. Founded in 2012, the company has grown to employ between 201 and 500 individuals, showcasing its capacity to manage a variety of projects. Anchor Mechanical offers a comprehensive suite of services, including installation, maintenance, and repair for both residential and commercial clients. Their operational focus is primarily in Central Maryland, covering areas such as Harford, Baltimore, and Cecil Counties. The company prides itself on delivering exceptional customer service and has built a reputation for reliability and professionalism. With a commitment to maintaining high standards, Anchor Mechanical aims to create lasting relationships with clients, ensuring repeat business and referrals. Their service offerings are supported by a team of experienced technicians who are dedicated to providing high-quality work and addressing customer needs effectively.

16. Mecco LLC

• Website: mecco-llc.com
• Ownership type: Private
• Headquarters: Jessup, Maryland, United States (USA)
• Employee distribution: United States (USA) 82%, Indonesia 18%
• Founded year: 1983
• Headcount: 51-200
• LinkedIn: mecco-inc-

Mecco LLC, founded in 1983 and based in Jessup, Maryland, is a mechanical services company that specializes in HVAC, plumbing, and building controls. With a workforce of approximately 21 employees, Mecco has built a reputation for providing high-quality installation, maintenance, and repair services tailored to commercial building owners, property management firms, healthcare facilities, and government entities. The company prides itself on its experienced technicians, who are trained by top industry organizations, ensuring that clients receive competent and reliable service. Mecco operates 24/7, offering emergency services to address urgent mechanical needs. Their affiliations with various unions and professional organizations underscore their commitment to industry standards and best practices. Mecco's focus on energy efficiency and customer satisfaction positions them as a valuable partner for businesses seeking to optimize their mechanical systems.

17. Mechanical Systems Inc.

• Website: mechsys.com
• Ownership type: Private
• Headquarters: Columbia, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1970
• Headcount: 11-50
• LinkedIn: mechanical-systems-inc

Mechanical Systems Inc. is a private HVAC service provider based in Columbia, Maryland, with a history dating back to 1970. Founded by Roy Poore, the company was the first independent contractor for automatic temperature controls in the Washington, DC area. Over the years, Mechanical Systems has expanded its services to include the installation, maintenance, and repair of a wide range of commercial HVAC systems. They pride themselves on their customer service, offering 24/7 assistance and a fleet of fully stocked service trucks to ensure prompt response times. Their expertise includes automatic temperature control systems, and they are an authorized installing agent for Johnson Controls Facility Explorer systems. The company has garnered a strong reputation among notable clients, including various embassies and large property management firms, which reflects their capability and reliability in the HVAC industry.

18. Supreme Service Today

• Website: supremeservicetoday.com
• Ownership type: Private
• Headquarters: Baltimore, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2004
• Headcount: 11-50
• LinkedIn: supreme-air

Supreme Service Today, founded in 2004, is a private service company based in Baltimore, Maryland, specializing in HVAC and plumbing solutions. With a workforce of 11-50 employees, the company has established itself as a reliable provider of air conditioning installation, heating repairs, and plumbing maintenance for both residential and commercial customers. They pride themselves on delivering high-quality workmanship and exceptional customer service, which is reflected in their 100% satisfaction guarantee. The company invests significantly in training its technicians, ensuring they are knowledgeable about the latest HVAC technologies. Supreme Service Today also offers 24/7 emergency services, demonstrating their commitment to being available when customers need them most. Their service areas include Baltimore, Ellicott City, and several surrounding regions, making them a prominent player in the local market.

19. Superior Mechanical Services

• Website: superiormech.net
• Ownership type: Private
• Headquarters: Beltsville, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2001
• Headcount: 51-200
• LinkedIn: superior-mechanical-services

Superior Mechanical Services, founded in 2001 and based in Beltsville, Maryland, specializes in commercial HVAC and plumbing solutions. With a workforce of approximately 58 employees, the company has built a reputation for providing installation, repair, and emergency services tailored to the needs of various sectors, including hospitality, retail, and office environments. Their operations are designed to ensure that clients maintain efficient and functional systems, which is crucial for comfort and safety in commercial settings. The company prides itself on its experienced team, which is equipped to handle complex projects and deliver sound solutions. Superior Mechanical Services is dedicated to customer satisfaction, offering 24/7 emergency services to address urgent needs promptly. Their focus on commercial clients and extensive experience in the industry positions them as a reliable choice for businesses seeking HVAC and plumbing expertise.

20. John G Webster

• Website: johngwebster.com
• Ownership type: Private
• Headquarters: Beltsville, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1912
• Headcount: 11-50
• LinkedIn: john-g-webster

John G Webster is a privately owned service company based in Beltsville, Maryland, specializing in plumbing, heating, and air conditioning solutions. Established in 1912, the company has built a reputation for providing quality service to residential and commercial clients in the Washington, DC area. With a workforce of 11-50 employees, John G Webster offers a comprehensive range of services, including installation, maintenance, and repair of HVAC systems, as well as plumbing services. The company emphasizes customer satisfaction through responsive service and preventive maintenance agreements. Additionally, John G Webster is EPA certified, ensuring compliance with environmental standards. Their facility features modern technologies and a dedicated team, further supporting their commitment to quality service.

21. HPS Specialties LLC

• Website: hpsspec.com
• Ownership type: Private
• Headquarters: Mount Airy, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2008
• Headcount: 11-50
• LinkedIn: hps-specialties-llc

HPS Specialties LLC, based in Mount Airy, Maryland, is a private company specializing in HVAC and plumbing products. Established in 2008, the firm has carved out a niche in providing high-quality specialty products and custom solutions tailored to the needs of businesses in the commercial and industrial sectors. With a team of dedicated professionals, HPS Specialties ensures timely project completion and exceptional service. The company operates primarily in the Mid-Atlantic region, including Maryland, DC, Northern Virginia, West Virginia, Eastern Pennsylvania, Southern New Jersey, and Delaware. HPS Specialties is committed to sourcing products from reputable manufacturers, and they actively participate in industry organizations such as ASHRAE and the Mechanical Contractors Association, which underscores their involvement and influence in the HVAC sector.

22. United Products Distributors

• Website: updinc.com
• Ownership type: Family Owned
• Headquarters: Halethorpe, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1973
• Headcount: 11-50
• LinkedIn: united-products-distributors

United Products Distributors, Inc. (UPD) is a family-owned company based in Halethorpe, Maryland, with a rich history dating back to its founding in 1973 by Joseph Kaelin. After his passing in 2000, the company continued to thrive under family management. UPD specializes in the distribution of HVAC products, including equipment and service parts, catering primarily to HVAC contractors. They operate several branches across the Mid-Atlantic region, including locations in Baltimore, Salisbury, and Dulles, which enhances their ability to serve a broad customer base. The company emphasizes quality service and customer satisfaction, which has been pivotal to their growth and success over the years. Additionally, UPD offers training programs and resources for contractors, further solidifying their role as a supportive partner in the HVAC industry.

HVAC Companies Insights: Key Companies in Maryland

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