GreenSeal Installations

GreenSeal Installations maintains a 4.9-star rating across 107 customer reviews in Mt Sinai, New York. Operating from Suffolk County, this heating equipment supplier has built its reputation on oil tank services alongside broader HVAC offerings including boilers, air conditioning, and water heaters. The company serves residential and commercial customers throughout the county, with a documented 25-year track record of equipment installation and replacement projects.

The contractor distinguishes itself through specialized oil tank expertise, handling installation, removal, and abandonment services that many general HVAC companies avoid. Their service menu includes Peerless boilers, Bosch inverter ducted split heat pumps, and Vaughn indirect water heaters, giving customers manufacturer options across different price points. The company offers photo-based estimate assessments, allowing homeowners to receive quotes without requiring an initial in-person visit, a practical convenience that reviewers specifically praised.

Customer reviews highlight specific technicians who managed particular scenarios. One reviewer described Mike visiting the day after initial contact, with installation completed two days later. Allison handled communications and scheduling for another customer. Juan Hernandez, Matt, and Mike (described as the boss) removed a leaking basement oil tank for a reviewer whose tank contained sludge and corrosion. Reviewers consistently mentioned the crew's cleanliness, with one noting minimal oil smell remaining just two hours after tank removal.