We do it right!
We deliver the highest quality mechanical contracting services with expertise, safety, professionalism, and urgency.
ACI is a full-service contractor delivering integrated mechanical solutions and comprehensive facility support to industrial, commercial, and institutional customers in Maryland, Washington, DC, and Virginia.
American Combustion Industries (ACI) combines decades of mechanical expertise with expanded capabilities in plumbing, piping, HVAC, and industrial vacuum services. By integrating a trusted service team, we’ve strengthened our ability to deliver responsive solutions for critical facilities of every size and complexity.
Our reputation for reliability is built on more than technical excellence. We are committed to long-term client partnerships, exceptional customer service, and a willingness to go the extra mile. From emergency repairs to large-scale system upgrades, ACI delivers cost-effective, high-quality solutions that keep facilities operating at peak performance.
We continue to evolve by investing in the latest technology, training, and best practices. Our industry isn’t standing still—and neither is ACI.
Proud to be part of Exigent
In 2022 ACI joined Exigent, a dynamic group of companies focused on providing critical commercial HVAC and mechanical services. This partnership allows ACI to better serve its customers with improved capabilities and resources through Exigent’s Integrated Mechanical Solutions platform.
Our Team of Experts
ACI holds ASME and National Board of Boiler and Pressure Vessel Certifications, including R, A, H, and PP Authorizations.
Do you need a reliable service partner?
ACI has grown into a premier mechanical services company by hiring only the best highly-skilled and trained technicians. Our experienced and factory-trained team members are not just experts in boilers, chillers, central plants, and other mechanical systems. They are also experts in responsive and professional customer service. Our commitment to finding the most efficient and effective solutions to any challenge is reflected every day, with every customer. ACI has the knowledge, experience, and dedication to diagnose and repair or replace your mechanical system—and keep your facility operating.
Core Values
Customer First
We’re committed to peerless customer service to resolve our customers’ issues quickly and safely while offering innovative preventative solutions.
Safety
The safety of our customers, employees, and partners is our highest priority.
Quality, no shortcuts
We do it right. We promise quality work and excellent service every time.
Respect
Our respect for our customers is reflected in our prompt, reliable service. We guarantee our work—every job, every time.
Teamwork
Our team of highly skilled technicians works together to solve our customers’ unique challenges.
“The winter of 2017 proved to be an extremely challenging time for our campus. When we needed them most, ACI delivered. They were willing to work through the night to ensure that our systems were up and running, and we were immensely impressed with the service we received.”
— Howard University
24/7 Emergency Service
Call ACI Now!
Need emergency commercial boiler, HVAC, chiller, plumbing, or industrial vac service? Call us for emergency services ASAP!
ACI services your most mission-critical systems 24 hours a day, 7 days a week. Count on us to be there when you need us.