NAC Mechanical Services, LLC

NAC Mechanical Services operates as a mechanical contractor in Gaithersburg, Maryland, holding a 3.4-star average from 13 customer reviews. Since 1983, the company has provided HVAC and energy solutions across the Baltimore-Washington DC metropolitan area, serving commercial, industrial, healthcare, education, and government sectors. The contractor maintains standard business hours Monday through Friday from 7 AM to 4 PM, with weekend operations closed.

What distinguishes NAC Mechanical Services is its commitment to design-build retrofit projects and operational assessments for complex facilities. The company offers scheduled maintenance programs and emergency repair services with rental equipment options. Their project delivery emphasizes completing work within budget and on schedule, even under challenging conditions. The contractor utilizes energy-efficient technologies aimed at long-term value solutions for building owners.

Customer feedback highlights specific team members who delivered exceptional service. Reviewers recognized Gwen and AJ for their customer interactions, while Emily Winters praised Deron Depuis and Brandon Awad for their work on a boiler room project, noting precision and attention to detail throughout the process. One reviewer described a same-day response during a project, though another mentioned challenges with timely communication and professionalism.