Ambient Temperature Corporation
Ambient Temperature Corporation (ATCO) is a union mechanical service contractor serving Eastern Massachusetts, New Hampshire, and Southern Maine, specializing in HVAC repairs, maintenance, and design-build projects for commercial, industrial, and institutional markets.
About
Founded in 1985, Ambient Temperature Corporation (ATCO) is a mechanical service contracting company specializing in the installation and maintenance of heating, air conditioning, refrigeration, process piping, plumbing, and air-handling systems. Headquartered in Newburyport, Massachusetts, ATCO has built its reputation on delivering expertise, dependability, and reliable service to commercial, industrial, and institutional clients throughout Eastern Massachusetts, New Hampshire, and Southern Maine.
In October 2023, ATCO joined Exigent, a dynamic group of companies focused on providing critical commercial HVAC and mechanical services. This partnership allows ATCO to better serve its customers with improved capabilities and resources while maintaining its commitment to service excellence.
Led by President Jeffrey Groth, ATCO's leadership team prioritizes investing in both customer success and employee development. Over the past 35+ years, the company has built a strong reputation based on the stability of its staff, effective project management, and an impeccable safety record. ATCO's highly trained union technicians are experts in diagnosing and repairing complex mechanical systems including boilers, chillers, HVAC equipment, and building automation systems.
ATCO offers comprehensive mechanical services including repair and replacement, programmed maintenance, building controls, and energy and sustainability services. The company provides 24/7/365 emergency response with certified technicians trained in leading building automation systems including Carrier, Delta, Johnson, TOSIBOX, and Tridium Controls. ATCO serves diverse industries including hospitals and medical centers, schools and universities, industrial facilities, government and defense installations, major hotels and resorts, commercial buildings, multi-family housing, data centers, and life sciences facilities.
ATCO's core values center on customer-first service, safety, quality without shortcuts, respect, and teamwork. The company has successfully completed notable projects for major institutions including the Malden Housing Authority and the Massachusetts Department of Conservation and Recreation, demonstrating their ability to provide innovative, effective, and cost-efficient solutions for complex mechanical challenges. ATCO's ongoing investment in employee training, education, and development is reflected in their reputation for technical expertise, superior customer service, and dependable solutions that keep facilities operating efficiently.
Service Area
Regions
Project Types
Hospitals and Medical CentersSchools & UniversitiesIndustrial Facilities and PlantsGovernment and Defense InstallationsMajor Hotels and ResortsCommercial Office BuildingsMulti-Family HousingData CentersLife Sciences
Notable Projects
- •Malden Housing Authority - Identified factory defects in heat pump equipment and leveraged manufacturer warranty to reduce costs
- •Massachusetts Department of Conservation and Recreation (DCR) - Statewide mechanical services supporting Decarbonization Initiative goals
- •Town of Belmont - Ongoing maintenance services for municipal facilities
Specializations
Union Affiliations
Certifications & Memberships
Contact Information
Company Details
Established
1985
Employees
26-50
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