ADI Heating & Air Conditioning, LLC

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Claim This BusinessAbout ADI Heating & Air Conditioning, LLC
ADI Heating & Air Conditioning, LLC serves residential and light commercial clients across dozens of communities in Maryland and the District of Columbia, including Gaithersburg, Rockville, Germantown, Bethesda, and Silver Spring. The company maintains a 4.9-star average rating derived from 57 client reviews, reflecting consistent service quality in a region where summer humidity and winter temperature swings demand reliable year-round climate control. Technicians at this contractor handle air conditioning, heating, heat pumps, boiler systems, and indoor air quality equipment for homeowners, property managers, and new construction projects.
This contractor distinguishes itself through broad equipment expertise spanning traditional forced-air furnaces, radiant floor heating, heat pump installations, and ductless mini-split configurations. The company offers commercial refrigeration services alongside residential HVAC, positioning them as a resource for both homeowners and small commercial property operators. Indoor air quality solutions include HRV and ERV ventilation systems, UV coil purifiers, electronic air cleaners, whole-house humidifiers and dehumidifiers, addressing the region's pollen spikes and seasonal humidity challenges that affect many homes in Montgomery County and surrounding areas.
Customer reviews repeatedly recognize a technician named Ronen for going beyond standard service calls. One reviewer describes a same-day phone consultation in which Ronen talked them through a furnace diagnosis and repair that saved a costly part replacement. Another account recounts Ronen responding on a Sunday afternoon after heating failed during frigid weather, providing technical guidance when no other contractor would answer. A third reviewer notes their system has operated consistently well for eight years following an equipment replacement in 2017, underscoring long-term reliability that drives repeat business.
What Customers Say
Four of five detailed reviews specifically name Ronen as the technician providing service, with three mentioning same-day or Sunday response during heating emergencies. All twelve full reviews carry five-star ratings, and common themes include cost savings from accurate diagnostics and system longevity continuing past eight years.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| TuesdayToday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | 8 AM–5 PM |
Services
AC Repair & Maintenance
Diagnostic services, tune-ups, and repair for residential air conditioning systems requiring parts or refrigerant service.
AC Installation & Replacement
New air conditioner installation and equipment replacement for aging units in existing homes.
Heating System Services
Furnace and heating maintenance, repair, and installation including emergency heating repair.
Heat Pump Systems
Installation, maintenance, replacement, and repair for traditional and ductless heat pump configurations.
Indoor Air Quality Solutions
UV purifiers, electronic air cleaners, whole-house humidifiers, dehumidifiers, and HRV/ERV ventilation systems.
Boiler & Radiant Heating
Boiler services, radiator services, and radiant floor heating installation and repair.
Commercial Refrigeration
Refrigeration services for small commercial properties alongside standard HVAC offerings.
Smart Thermostat Installation
Integration and setup of smart thermostat systems for enhanced climate control and energy management.