One Hour Heating & Air Conditioning of Nassau County

One Hour Heating & Air Conditioning of Nassau County serves residential clients across Oceanside, Freeport, Baldwin, and surrounding Nassau County communities. The contractor holds a 4.8-star rating compiled from 11 client reviews, reflecting consistent satisfaction with both repair and installation work. The business operates around the clock with 24-hour availability every day of the week, including holidays.

The company distinguishes itself through same-day emergency response capabilities and specialized expertise in complex heating system repairs. Their service portfolio covers the full spectrum of residential HVAC needs, from routine AC maintenance and furnace tune-ups to complete system installations and ductwork solutions.

Multiple reviewers specifically mention technician Alejandro by name, praising his diagnostic skill and thorough approach to repairs. One reviewer describes how Alejandro located a leak in their unit that had gone unidentified, then completed the fix with excellent craftsmanship. Another client notes the team resolved a complicated steam gas water heater issue involving sensor malfunctions and calibration problems. Reviewer Ronnie Klein also calls out dispatcher George for professional handling of the service call, highlighting the company's coordinated response from initial contact through job completion.