rooftop air handling equipment

Preventive maintenance and repair of commercial heating and cooling systems

Properly-maintained commercial HVAC systems: conserve energy, cut absenteeism, increase productivity, and minimize business interruptions and costly emergency repairs.

The right maintenance program pays for itself in terms of energy savings and extending equipment life. As an experienced commercial HVAC contractor, Thornton Service provides HVAC service and maintenance services to customers ranging from federal, state and local governments to educational institutions and private companies. The Thornton Service HVAC programs fall into two categories:

  • Assured Professional Maintenance HVAC contracts: (Comprehensive, full service, parts and labor inclusive), and
  • Certified Professional Maintenance HVAC contracts: (Preventive maintenance service).

By maintaining on call, 24/7 coverage, Thornton Service customers don’t worry about after hour emergency HVAC service; Thornton Service’s commercial HVAC services are there when they need them. Read below to learn more about the Thornton Service HVAC maintenance services, or contact them for immediate assistance with your building’s HVAC needs.

Thornton Service focuses on providing quality service through regularly scheduled preventive maintenance. Scheduled maintenance provides a range of benefits, including: longer systems and equipment lifespan, fewer costly repairs, increase in energy efficiency, healthier indoor air quality, compliance with EPA standards and the availability of documented equipment histories.

Currently, Thornton Service manages approximately 150 maintenance accounts in the Washington, DC metropolitan area; the journeymen technicians that comprise this mobile commercial heating and cooling service division are members of Steamfitters Local 602. In addition, Thornton Service manages several science laboratory buildings, which are staffed with stationary building engineers from Local 99.

Thornton Service’s customized HVAC services

  • Predictive and scheduled preventive maintenance
  • Computer room heat removal and cooling equipment preventive maintenance
  • Building energy analysis
  • Chillers (reciprocating & centrifugal)
  • Automated building controls
  • Contract administration
  • Steam boilers (hi & low pressure)
  • Hot water boilers
  • Pneumatic air systems
  • O&M, repair and facility upkeep (interior & exterior systems, MEP)
  • Chemical water treatment
  • Services subcontracted by Thornton Service include rigging, reverse osmosis/deionization systems, autoclaves, building automation controls, emergency generators, UPS systems, backflow preventer device testing & certification and medical gas piping

Commercial HVAC equipment serviced by Thornton Service

  • Packaged terminal air conditioners (PTACs)
  • Air handling units (AHUs)
  • Split system air conditioning units
  • Self-contained air conditioning units
  • Rooftop air conditioning units
  • Chillers: centrifugal, reciprocating and screw
  • Computer room air conditioners (CRACs)
  • Cooling towers
  • Compressors: reciprocating, scroll, screw, rotary, open, hermetic and semi-hermetic
  • Centrifugal pumps
  • Heat pumps
  • Boilers
  • Vane axial fans
  • Refrigeration and ice machines
  • Variable frequency drives
  • Condensing units
  • Glycol dry coolers
  • Controls
  • Fan coil units (FCUs)
  • Variable air volume boxes (VAVs)