Anderson Mechanical Services Inc

Anderson Mechanical Services, branded AMSI, is a commercial HVAC and plumbing contractor in Sterling that has supported facilities across the Mid-Atlantic since 1988 and is now part of Vertical Mechanical Group. Its technicians service rooftop units, split systems, heat pumps, boilers, chillers, make-up air units, exhaust fans and VRF systems in office buildings, industrial spaces, hospitality and multi-use buildings, and multi-site operations. Offerings include preventive maintenance contracts with regular system checks, indoor air quality evaluations, equipment replacement and retrofits, thermostat and smart control upgrades, smart building controls and startup and commissioning. Emergency HVAC and plumbing service runs 24/7 for contract clients and urgent needs. Rated 4.0 from 25 Google reviews, 19 of them five stars and 6 one star.