Home / About Us
Products & Services
Service Agreements / Contracts
Specials & Payment Options
Testimonials
Tips & Suggestions
FAQs & Glossary of Terms
Affiliations & Accreditations
Contact Us
Customer Satisfaction Survey

Our residential services include:

  • Preventive Maintenance Service Agreements
  • Central Air Conditioning Systems
  • Split Systems - Ducted and Ductless
  • Heat Pumps
  • Furnaces - Gas and Oil
  • Boilers - Gas and Oil
  • PTACs - Self Contained Through-the-Wall Units
  • Programmable Thermostats
  • Electronic Air Cleaners
  • Whole House Filtration Systems
  • Humidifiers
  • Dehumidifiers
  • Home System Zoning - Water and Air
  • Water Heaters - Tank and Tankless
  • Water Softeners
  • Reverse Osmosis Units (R/O Units)
  • Condensate Pumps

Our commercial services include:

  • Packaged Rooftop Units
  • Split Systems
  • Boilers
  • Chillers
  • Heat Exchangers
  • Dry Coolers (Glycol Systems)
  • Cooling Towers (Service Only)
  • Water Treatment Systems
  • Pumping Systems
  • Temperature Control Systems
  • Supply & Exhaust Fans
  • VAV Systems
  • Computer and LAN Rooms
  • PTACs
  • Fan Coils

*These lists are not all-inclusive. Please feel free to call us at (703)580-8858 with any questions you may have.

Specializing in:

  • Service and repairs
  • Energy management repairs and support
  • Preventive maintenance
  • Tenant improvements
  • Replacement of existing equipment
  • Commercial/tenant build-outs
  • Due diligence walk-through reports

For information about our Residential Preventive Maintenance Service Agreements and Commercial Service Contracts, please click here.



TBLM can install any brand of HVAC equipment. We specialize in Heil products, but we partner with all of the major equipment manufacturers, and will install whichever brand you desire.



Air conditioning & heat pump condensing unit
Even on the hottest days of the year, you can keep your home cool and comfortable while enjoying low energy costs with a high-efficiency air conditioner. Don’t choose between affordability, durability, and optimum cooling comfort. Install a new high-efficiency air conditioner to receive all three.


Air handler
Your air handler is an essential part of your split heating and cooling system. It is the indoor portion that delivers the cooled air in the summer and heated air in the winter — quietly and economically.


Evaporator coil
An evaporator coil is made for use with split-system air conditioning and heat pump systems. It is the essential mechanism for heat transfer.


Gas and Oil furnaces
Gas and oil furnaces deliver warm, money-saving indoor comfort year after year. Variable and multi-speed furnaces provide enhanced performance by slowly ramping up to meet your comfort needs. This also alleviates the ‘cold air blow’ often associated with single-speed furnaces that cut on at full speed only.


Mini split air conditioners (or ductless mini-split)
These systems have numerous potential applications in residential, commercial, and institutional buildings. The most common applications are in multi-family housing or as retrofit add-ons to houses with "non-ducted" heating systems.


Packaged heating and air conditioning system
Packaged systems offer both heating and cooling performance from one product. Packaged heat pumps provide efficient electric heating and cooling to your home or business. Packaged air conditioners efficiently keep you cool in the summer, and gas furnace/ air conditioner packaged products add the warmth of cozy gas heat in the winter.