Commercial plumbing companies in Connecticut provide essential services that maintain and enhance public and private facilities. They offer a wide range of solutions, from plumbing installation and repair to advanced HVAC systems, catering primarily to businesses, institutions, and construction projects. As the industry evolves, there is an increased focus on sustainability and energy efficiency, encouraging innovation in water management and system design. Additionally, the demand for smart plumbing technologies is on the rise, pushing companies to explore new ways to deliver better services while reducing resource consumption. Overall, Connecticut's plumbing sector is poised for growth, driven by both regulatory changes and changing consumer expectations.


The companies on this list represent a robust segment of Connecticut's commercial plumbing sector. They range from small teams employing 11-50 staff to larger firms with over 200 employees. Founded between 1942 and 2017, these firms are strategically located across various cities including Milford, Avon, and Glastonbury. Their specialties include plumbing, HVAC services, and industrial applications. Each company adapts to market demands while catering to both private and public sectors, showcasing a commitment to quality and reliability that defines this industry in Connecticut.


Continue reading to discover the top commercial plumbing companies in Connecticut.


Top 25 Commercial Plumbing Companies in Connecticut


1. ricks plumbing service inc


Rick's Plumbing Service Inc. is a plumbing and heating service company based in Milford, Connecticut. Established in 1992, the company has been serving the local community for over three decades. They provide a wide array of services, including drain cleaning, sewer repair, water heater installation, and emergency plumbing. Catering to both residential and commercial customers, Rick's Plumbing emphasizes efficient and reliable solutions tailored to the needs of their clients. The company prides itself on employing skilled professionals who ensure high-quality service. Their operational footprint primarily covers New Haven and Fairfield Counties, making them a trusted choice for plumbing and heating needs in the region.


2. Eastern Mechanical Services, Inc

  • Website: emsinc.us
  • Ownership type: Private
  • Headquarters: Oxford, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1985
  • Headcount: 51-200
  • LinkedIn: eastern-mechanical-services-inc

Eastern Mechanical Services, Inc. (EMS) is a mechanical contractor based in Oxford, Connecticut, established in 1985. The company specializes in plumbing, HVAC, and fire protection services, catering primarily to commercial, industrial, institutional, and pharmaceutical clients. EMS is known for providing essential mechanical systems that ensure comfort and safety in various facilities. With a dedicated team of licensed technicians and craftsmen, EMS emphasizes quality and customer satisfaction in all its projects. The company has also gained recognition as a Mitsubishi Electric Diamond Elite contractor, highlighting its expertise in advanced HVAC systems. EMS's portfolio includes notable projects such as the Hotel Marcel and the Playhouse Theater, demonstrating its capability in handling complex mechanical installations. The firm operates with a commitment to maintaining high standards and has established itself as a trusted provider in the mechanical services industry.


3. Mega Mechanical Systems Corporation


Mega Mechanical Systems Corporation, founded in 1991 and based in Glastonbury, Connecticut, is a private mechanical contractor that specializes in HVAC, plumbing, and piping services. The company serves a variety of sectors, including healthcare, education, and commercial construction. With a workforce of 51-200 employees, Mega Mechanical Systems prides itself on delivering quality craftsmanship and exceptional customer service. They handle projects ranging from new construction to renovations, ensuring that mechanical systems meet the specific needs of their clients. Their expertise extends to medical gas systems, which are critical in healthcare facilities. The company operates as a full-service union contractor, emphasizing safety and integrity in all its operations. Mega Mechanical Systems has successfully completed projects for notable clients such as Yale University and Bridgeport Hospital, showcasing their capability in managing complex mechanical installations. Their commitment to safety and ethical practices further enhances their reputation in the industry.


4. Macri Associates, Inc.


Macri Associates, Inc., established in 1981, is a mechanical contracting firm based in Avon, Connecticut. The company specializes in HVAC systems, plumbing, and construction management, catering to a wide range of clients such as commercial buildings, educational institutions, and healthcare facilities. With a workforce of 11-50 employees, Macri Associates prides itself on delivering comprehensive services from design to emergency maintenance. Their team consists of licensed and trained technicians who are dedicated to minimizing operational costs and enhancing system reliability. Over the years, Macri has built a reputation for attention to detail and a strong commitment to client satisfaction, which is evident in their extensive portfolio of projects. They have also received accolades for their safety practices and have been active members of industry organizations, further solidifying their role in the commercial plumbing sector.


5. Action Air Systems, Inc.

  • Website: actionairsystems.com
  • Ownership type: Private
  • Headquarters: Manchester, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1987
  • Headcount: 11-50
  • LinkedIn: action-air-systems-inc

Action Air Systems, Inc., founded in 1987, is a mechanical contractor based in Manchester, Connecticut. The company specializes in HVAC/R and plumbing services tailored for commercial and industrial clients. With a workforce of 11-50 employees, Action Air Systems has built a reputation for providing design/build services, 24-hour maintenance, and custom installations. Their clientele includes manufacturing plants, hospitals, and government facilities, primarily in Connecticut and surrounding areas. The company operates from a 20,000-square-foot facility equipped with a state-of-the-art sheet metal shop and training center, ensuring they maintain high standards in service delivery. Action Air Systems prides itself on rapid response times and a commitment to quality, which is reflected in their customer reviews and project portfolio.


6. Macri Associates, Inc.

  • Website: macrict.com
  • Ownership type: Private
  • Headquarters: Avon, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1981
  • Headcount: 11-50
  • LinkedIn: macri-associates-inc.

Macri Associates, Inc., founded in 1981, is a mechanical contracting firm based in Avon, Connecticut. The company specializes in HVAC systems and plumbing, providing a comprehensive range of services that include design-build, construction management, and emergency support. With a team of licensed and trained technicians, Macri Associates is committed to delivering high-quality service to commercial and institutional clients. Their expertise extends to preventative maintenance programs aimed at reducing operating costs and minimizing emergency repairs. Over the years, Macri has built a strong reputation for attention to detail and reliability, working closely with clients in sectors such as education, healthcare, and manufacturing. The company prides itself on its professional approach and has received recognition for its safety practices and project execution. Macri Associates continues to be a significant player in the mechanical contracting industry, focusing on innovative solutions and client satisfaction.


7. Edgerton Inc

  • Website: edgertonhvac.com
  • Ownership type: Family Owned
  • Headquarters: Monroe, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1956
  • Headcount: 51-200
  • LinkedIn: edgerton-hvac

Edgerton Inc, based in Monroe, Connecticut, has been a staple in the HVAC and plumbing industry since its founding in 1956 by Charles Edgerton. Now in its third generation of family ownership, the company prides itself on delivering comprehensive heating, air conditioning, and plumbing services to both residential and commercial customers. With a workforce of approximately 32 employees, Edgerton Inc operates around the clock, ensuring that clients receive timely assistance whenever needed. Their service portfolio includes installation, maintenance, and repair, with a particular emphasis on customer satisfaction and technical excellence. The company also offers financing options to help clients manage their service costs effectively. Edgerton Inc has established a strong presence in the local market, serving various counties in Connecticut and parts of New York, and continues to uphold its core values of teamwork, integrity, performance, and innovation.


8. USA Mechanical & Energy Services

  • Website: usamech.com
  • Ownership type: Family Owned
  • Headquarters: East Granby, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2017
  • Headcount: 11-50
  • LinkedIn: usa-mechanical-energy-services

USA Mechanical & Energy Services, founded in 2017 and based in East Granby, Connecticut, is a family-owned mechanical contracting firm. The company specializes in HVAC, plumbing, and energy services, primarily serving commercial and industrial clients. Their clientele includes significant sectors such as healthcare and education, where operational efficiency and energy cost reduction are critical. USA Mechanical emphasizes high-quality service and strong client relationships, which are vital in the competitive contracting landscape. The company has expanded its workforce significantly since its inception, reflecting its growth and commitment to meeting client needs. They also engage in community initiatives, showcasing their dedication beyond just business operations. With a focus on safety and employee training, USA Mechanical aims to maintain a skilled workforce capable of delivering reliable services. Their comprehensive approach to mechanical contracting positions them as a relevant player in the commercial plumbing sector.


9. Modern Mechanical Systems

  • Website: modernmech.com
  • Ownership type: Family Owned
  • Headquarters: Farmington, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1976
  • Headcount: 11-50
  • LinkedIn: modernmechanicalsystems

Modern Mechanical Systems, Inc. (MMS) is a family-owned mechanical contractor based in Farmington, Connecticut, established in 1976. The company specializes in HVAC, plumbing, and process piping services, catering primarily to commercial, industrial, and municipal clients. With a workforce of around 40 employees, including licensed plumbers and HVAC technicians, MMS has the capability to handle projects of varying sizes and complexities. They have successfully completed numerous projects, including significant contracts with educational institutions and healthcare facilities, demonstrating their expertise in the field. MMS also emphasizes safety and quality, having received multiple awards for their safety programs. Their proactive approach to maintenance and service ensures that clients' mechanical systems operate efficiently, which is crucial in commercial settings. Overall, Modern Mechanical Systems is a well-established player in the commercial plumbing industry, known for its reliability and technical proficiency.


10. Mulvaney Mechanical, Inc.


Mulvaney Mechanical, Inc., based in Danbury, Connecticut, is a mechanical contracting firm that specializes in HVAC systems, plumbing, and clean room installations. Established in 1981, the company has developed a strong presence in the commercial, industrial, and institutional sectors. With a workforce of 11-50 employees, Mulvaney Mechanical prides itself on delivering high-quality mechanical systems that ensure efficiency and safety. Their expertise extends to process piping and high purity gas installations, catering to industries such as pharmaceuticals and manufacturing. The company emphasizes safety, employing seasoned instructors for in-house OSHA training and providing necessary personal protective equipment to its staff. Mulvaney Mechanical is also actively involved in community service and holds various industry affiliations, enhancing its reputation and network within the mechanical contracting field.


11. Sarracco Mechanical Services, Inc.

  • Website: sarracco.com
  • Ownership type: Family Owned
  • Headquarters: Waterbury, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 88%, Portugal 12%
  • Founded year: 1975
  • Headcount: 51-200
  • LinkedIn: sarracco

Sarracco Mechanical Services, Inc., based in Waterbury, Connecticut, has been a family-owned business since its inception in 1975. With a workforce of approximately 100 employees, the company specializes in mechanical services, including plumbing, HVAC, electrical, sheet metal, and fire & security systems. They cater to a variety of clients, including hospitals, schools, and businesses, providing essential installation, maintenance, and renovation services. Their plumbing division is particularly noteworthy, handling projects that range from new construction to complex renovations, ensuring compliance with industry standards. Sarracco has earned recognition for its safety programs and quality workmanship, which has helped them maintain a strong presence in Connecticut, Massachusetts, and New York. Their extensive experience and commitment to customer satisfaction position them as a reliable partner in the mechanical services industry.


12. McKenney Mechanical Contractors Inc.


McKenney Mechanical Contractors Inc., founded in 1987, operates out of Newtown, Connecticut, and has established itself as a significant player in the HVAC and refrigeration industry. The company specializes in complex installations and services, particularly in demanding environments such as hospitals, schools, and commercial facilities. Their offerings include large tonnage chiller installation, commercial boiler services, and process piping, which are essential for maintaining efficient operations in various settings. McKenney Mechanical is known for its commitment to safety, community involvement, and energy conservation, providing 24-hour emergency services and preventative maintenance programs to ensure the longevity and efficiency of HVAC/R systems. With a workforce of 51-200 employees, they have built strong relationships with engineering and property management partners, enhancing their reputation in the industry.


13. The Jack Farrelly Company (A Core & Main Brand)

  • Website: jfpipe.com
  • Ownership type: Private
  • Headquarters: Bloomfield, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1967
  • Headcount: 11-50
  • LinkedIn: the-jack-farrelly-company

The Jack Farrelly Company, a Core & Main Brand, is a pipe distributor and service provider based in Bloomfield, Connecticut. Founded in 1967, the company has established itself as a significant player in the pipe distribution industry, focusing on water and sewer systems. With a workforce of 21 employees, it operates from four locations across Connecticut and Massachusetts. The company serves a variety of clients, including contractors, municipalities, and water companies, ensuring they have access to essential products and services for effective infrastructure management. Their product range includes PVC, HDPE, and ductile iron pipes, along with fittings, valves, and fire hydrants. The Jack Farrelly Company also offers a comprehensive suite of emergency services, such as hot taps, line stops, and pipe testing, which are crucial for maintaining water infrastructure. Their motto, "When Service Counts," reflects their dedication to customer support and operational excellence in the plumbing sector.


14. Tucker Mechanical, Inc.

  • Website: tuckermech.com
  • Ownership type: Private
  • Headquarters: Rocky Hill, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2008
  • Headcount: 51-200
  • LinkedIn: tucker-mechanical

Tucker Mechanical, Inc., based in Rocky Hill, Connecticut, is a private mechanical contracting firm founded in 2008. With a workforce of approximately 64 employees, the company specializes in HVAC, plumbing, and industrial services. They cater to various sectors, providing comprehensive solutions for the installation, maintenance, and efficiency of mechanical systems. Tucker Mechanical emphasizes quality service and invests in employee development, ensuring that their team is well-equipped to meet client needs. Their service portfolio includes plumbing, preventive maintenance, process piping, and industrial services, showcasing their capability to handle complex projects. The company operates under the umbrella of EMCOR Group, which enhances its operational strength and resources. Tucker Mechanical has successfully completed notable projects, including work for Bridgeport Hospital and the Fairfield Water Pollution Control Facility, demonstrating their expertise in the field.


15. Consulting Engineering Services (CES)


Consulting Engineering Services (CES) is a private consulting and engineering firm based in Middletown, Connecticut, founded in 1994. With a workforce of approximately 297 employees, CES specializes in mechanical, electrical, plumbing, and fire protection systems. The firm has built a reputation for delivering high-quality engineering services tailored to the unique needs of its clients. Their portfolio includes a wide range of projects, from residential homes to large commercial developments, with a strong emphasis on sustainable design and energy efficiency. CES has worked with various sectors, including education, healthcare, and public safety, showcasing their ability to handle complex plumbing challenges. Their team of licensed professionals is equipped to provide comprehensive plumbing engineering services, ensuring optimal results throughout the project lifecycle. CES is committed to fostering relationships based on trust and excellence, making them a notable entity in the plumbing engineering sector.


16. Keeney

  • Website: keeneymfg.com
  • Ownership type: Corporate
  • Headquarters: Newington, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: November 2019
  • Founded year: 1923
  • Headcount: 201-500
  • LinkedIn: keeneymfg

Keeney Holdings LLC, based in Newington, Connecticut, has been a significant player in the plumbing manufacturing industry since its founding in 1923. Initially established as a manufacturer of floor and ceiling plates and radiator air valves, Keeney has evolved its product line to include a wide array of plumbing fixtures and accessories. Their offerings range from faucets and bath drains to toilet repair parts, catering to both wholesale and retail markets. Keeney operates manufacturing facilities across multiple states in the U.S. and has expanded its reach internationally with operations in Canada and China. The company prides itself on high order fulfillment rates and customer-friendly merchandising, which have earned them recognition in the plumbing community. Keeney has also been acknowledged for its commitment to workplace safety and environmental initiatives, further solidifying its role in the plumbing industry.


17. Ferguson

  • Website: fergusoncontractors.com
  • Ownership type: Private
  • Headquarters: Plainville, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 95%, United Kingdom (UK) 3%, Other 2%
  • Founded year: 1925
  • Headcount: 51-200
  • LinkedIn: fergusoncontractors

Ferguson Contractors, based in Plainville, Connecticut, has been a player in the construction industry since its founding in 1925. The company specializes in electrical and mechanical systems, with a strong focus on plumbing services. Ferguson has worked on a variety of projects, including educational institutions and healthcare facilities, showcasing their expertise in both new constructions and renovations. Their portfolio includes significant projects like the UConn Health Center Research Tower and the Naugatuck Valley Community College, where they provided comprehensive plumbing solutions. With a workforce of over 200 skilled professionals, Ferguson is known for its commitment to quality and safety, ensuring that all projects meet stringent client specifications. The company has maintained a solid reputation in the Northeast, adapting to industry changes while delivering reliable plumbing and mechanical services.


18. Plimpton & Hills Corporation

  • Website: plimptonhills.com
  • Ownership type: Private Equity
  • Headquarters: Meriden, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: January 2024
  • Founded year: 1902
  • Headcount: 201-500
  • LinkedIn: plimpton-%26-hills-corp

Plimpton & Hills Corporation, founded in 1902 and based in Meriden, Connecticut, operates as a plumbing supply and HVAC company. With a workforce of approximately 175 employees, the company serves a broad customer base that includes both homeowners and contractors. They offer a comprehensive selection of products for bathrooms, kitchens, and heating systems, ensuring that clients have access to quality materials for various construction and renovation projects. The company operates through physical showrooms, enhancing customer engagement and providing a hands-on experience with their products. Their commitment to quality and service positions them as a significant player in the plumbing supply industry, catering to the needs of both residential and commercial clients.


19. BellSimons Companies

  • Website: bellsimons.com
  • Ownership type: Corporate
  • Headquarters: Glastonbury, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: November 2022
  • Founded year: 1940
  • Headcount: 201-500
  • LinkedIn: bellsimons-companies

BellSimons Companies, founded in 1940 and based in Glastonbury, Connecticut, specializes in the distribution of HVAC, plumbing, and electrical products. With a workforce of approximately 72 employees, the company caters to contractors and businesses in the construction and maintenance sectors. Their product range includes essential plumbing supplies such as faucets, fittings, and pipes, alongside HVAC and electrical components. Operating primarily as a distributor, BellSimons facilitates both B2B and B2C transactions through their online platform, ensuring that clients have access to quality supplies for their projects. The company has maintained its relevance in the industry by adapting to market needs and providing a comprehensive catalog of products from various manufacturers.


20. Torrco

  • Website: torrco.com
  • Ownership type: Private
  • Headquarters: Waterbury, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1917
  • Headcount: 51-200
  • LinkedIn: torrco

Torrco is a private wholesale distributor based in Waterbury, Connecticut, specializing in plumbing and HVAC supplies. Founded in 1917, the company has built a solid reputation over more than a century of service. Torrco caters to a wide array of clients, including builders, designers, architects, and homeowners, by offering a comprehensive range of products necessary for construction and renovation projects. Their operations include physical showrooms and an online platform, which allows for easy access to their extensive product catalog. This dual approach not only enhances customer experience but also positions Torrco as a significant player in the plumbing supply industry. The company is committed to providing quality products and services, making it a reliable resource for those in the construction and renovation sectors.


21. Advanced Sheetmetal Associates, LLC


Advanced Sheetmetal Associates, LLC, founded in 1988, is a mechanical contracting firm based in Middlefield, Connecticut. The company specializes in HVAC systems, plumbing, and sheet metal fabrication, serving a variety of sectors including healthcare, pharmaceuticals, manufacturing, and education. With a workforce of 11 to 50 employees, Advanced Sheetmetal Associates prides itself on delivering high-quality installation and maintenance services. They have a strong reputation for safety, quality, and timely project completion. The company has successfully managed projects ranging from small installations to large-scale endeavors exceeding $10 million. Their expertise includes the installation of complex plumbing systems, such as potable and non-potable water piping, waste and vent piping, and high-purity lab piping. They also employ advanced technologies like 3D scanning and BIM modeling to enhance project execution. Advanced Sheetmetal Associates operates with a commitment to integrity and customer satisfaction, ensuring that they meet the needs of their clients while maintaining high standards of workmanship.


22. Davenport Associates

  • Website: davenportassociates.com
  • Ownership type: Family Owned
  • Headquarters: Wallingford, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1965
  • Headcount: 11-50
  • LinkedIn: davenport-associates

Davenport Associates, established in 1965, is a family-owned sales and marketing agency based in Wallingford, Connecticut. With a dedicated team of around 60 employees, the company specializes in the plumbing and heating sector, providing essential services such as sales support, product warehousing, and distribution for various manufacturers. They focus on a select group of quality manufacturers, ensuring that each line receives the attention necessary for success. Operating across multiple states, Davenport Associates has built a reputation for driving sales into new markets and enhancing the visibility of the products they represent. Their commitment to ethical practices and strong relationships with clients and manufacturers underpins their operations, making them a reliable partner in the plumbing industry.


23. Savy & Sons

  • Website: savyandsons.com
  • Ownership type: Family Owned
  • Headquarters: Hebron, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1975
  • Headcount: 11-50
  • LinkedIn: savy-sons

Savy & Sons is a family-owned construction services company based in Hebron, Connecticut, founded in 1975. The company specializes in infrastructure restoration and rehabilitation, focusing on critical services such as waterproofing, wastewater rehabilitation, and media blasting. They cater to a variety of clients, including engineering firms, municipalities, and commercial entities, providing effective solutions to maintain and restore essential infrastructure. Savy & Sons prides itself on its service-first approach, utilizing state-of-the-art technology and high-quality materials to ensure long-lasting results. Their expertise in water and wastewater systems positions them as a key player in the plumbing industry, particularly in the context of infrastructure maintenance and repair.


24. Dme

  • Website: dme-design.com
  • Ownership type: Private
  • Headquarters: New Haven, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2015
  • Headcount: 1-10
  • LinkedIn: dme-designs

DME Design is an engineering firm based in New Haven, Connecticut, specializing in mechanical, electrical, plumbing, and fire protection engineering. Founded in 2015, the company has built a reputation for providing comprehensive services that include pre-construction consulting, MEP engineering, and design-build solutions. DME collaborates closely with facility managers, contractors, and architects, addressing complex engineering challenges across various sectors, including commercial, life sciences, and manufacturing. Their portfolio showcases over 200 projects, reflecting their capability to handle diverse engineering needs. DME's plumbing services cover a wide array of applications, from domestic water systems to specialized waste management, making them a significant player in the commercial plumbing industry.


25. Empire Industries, Inc.

  • Website: empireindustries.com
  • Ownership type: Family Owned
  • Headquarters: Manchester, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1942
  • Headcount: 51-200
  • LinkedIn: empire-industries-inc-

Empire Industries, Inc., founded in 1942 and based in Manchester, Connecticut, is a family-owned manufacturer and distributor of piping products. The company has built a solid reputation over its 80 years of operation, focusing on pipe hangers, supports, strut, and strut accessories. They serve a wide range of industries, including residential, commercial, industrial, and waterworks, ensuring that their products meet the high standards required in these sectors. Empire Industries prides itself on its customer service, offering same-day and next-day shipping from eight nationwide stocking locations. This capability allows them to meet the urgent needs of wholesalers and contractors effectively. Additionally, they provide custom fabrication services, catering to specific client requirements, which further solidifies their position in the plumbing market. Their products are designed to comply with American manufacturing standards, making them suitable for federally funded projects. Overall, Empire Industries is a well-established player in the plumbing industry, known for its quality and service.



Commercial Plumbing Insights: Key Companies in Connecticut


CompanyHeadquarterSizeFoundedOwnership
ricks plumbing service incMilford, Connecticut, United States (USA)11-501992Private
Eastern Mechanical Services, IncOxford, Connecticut, United States (USA)51-2001985Private
Mega Mechanical Systems CorporationGlastonbury, Connecticut, United States (USA)51-2001991Private
Macri Associates, Inc.Avon, Connecticut, United States (USA)11-501981Private
Action Air Systems, Inc.Manchester, Connecticut, United States (USA)11-501987Private
Macri Associates, Inc.Avon, Connecticut, United States (USA)11-501981Private
Edgerton IncMonroe, Connecticut, United States (USA)51-2001956Family Owned
USA Mechanical & Energy ServicesEast Granby, Connecticut, United States (USA)11-502017Family Owned
Modern Mechanical SystemsFarmington, Connecticut, United States (USA)11-501976Family Owned
Mulvaney Mechanical, Inc.Danbury, Connecticut, United States (USA)11-501981Private
Sarracco Mechanical Services, Inc.Waterbury, Connecticut, United States (USA)51-2001975Family Owned
McKenney Mechanical Contractors Inc.Newtown, Connecticut, United States (USA)51-2001987Private
The Jack Farrelly Company (A Core & Main Brand)Bloomfield, Connecticut, United States (USA)11-501967Private
Tucker Mechanical, Inc.Rocky Hill, Connecticut, United States (USA)51-2002008Private
Consulting Engineering Services (CES)Middletown, Connecticut, United States (USA)51-2001994Private
KeeneyNewington, Connecticut, United States (USA)201-5001923Corporate
FergusonPlainville, Connecticut, United States (USA)51-2001925Private
Plimpton & Hills CorporationMeriden, Connecticut, United States (USA)201-5001902Private Equity
BellSimons CompaniesGlastonbury, Connecticut, United States (USA)201-5001940Corporate
TorrcoWaterbury, Connecticut, United States (USA)51-2001917Private
Advanced Sheetmetal Associates, LLCMiddlefield, Connecticut, United States (USA)11-501988Private
Davenport AssociatesWallingford, Connecticut, United States (USA)11-501965Family Owned
Savy & SonsHebron, Connecticut, United States (USA)11-501975Family Owned
DmeNew Haven, Connecticut, United States (USA)1-102015Private
Empire Industries, Inc.Manchester, Connecticut, United States (USA)51-2001942Family Owned


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