Green Team LI
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About Green Team LI
Green Team LI operates as an insulation contractor serving Holbrook and the broader Long Island region, including East Patchogue. With 403 customer reviews generating a 4.7-star rating, the company has established a strong reputation for home efficiency upgrades. The business functions as both a Home Performance with ENERGY STAR contractor and a SunPower solar installation company, positioning it as a comprehensive solution for homeowners seeking energy improvements. Service hours run Monday through Friday from 8 AM to 5 PM, with the office reachable at (631) 676-4717.
What distinguishes Green Team LI from typical HVAC contractors is their whole-home approach backed by building science expertise. Every project begins with a comprehensive energy audit that identifies specific opportunities for savings, ensuring solutions are tailored to each home's unique characteristics. The company specializes in high-performance insulation options including cellulose and spray foam, complemented by professional air sealing services. Their solar division offers analysis during every energy audit, helping homeowners determine qualification for available rebates and incentives through New York state programs. This dual focus on energy efficiency and solar allows them to address multiple aspects of home performance under one roof.
Customer reviews highlight specific experiences that illustrate the company's service style. Anthony Orlando described a thorough insulation project involving 14 inches of attic insulation, joist sealing, and HVAC duct sealing, noting the crew left his home spotless. Another reviewer, Debra Schnepf, praised technician Jason for his patience and thoroughness in explaining a new HVAC system and its smartphone app controls. Robert Moffitt's review described a multi-unit installation involving oil tank removal and hybrid system setup, with electrician Brian consulting on options throughout the project.
What Customers Say
Three of four featured reviewers award 5 stars, praising attention to detail, thorough explanations, and clean work. Technician Jason receives specific mention for HVAC fine-tuning and customer education. The single 1-star review documents dissatisfaction with heating performance after an oil-to-gas conversion, representing the only negative feedback among featured reviews.
Working Hours
| SundayToday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | Closed |
Services
Energy Audits
Comprehensive testing identifies where home upgrades could reduce energy bills, forming the foundation of every project.
Insulation Installation
Cellulose, spray foam, and foam board options installed to improve year-round energy efficiency and home comfort.
Air Sealing
Professional sealing of gaps and leaks throughout the building envelope to prevent energy loss.
Heating & Cooling Systems
HVAC installation, maintenance, and service agreements for residential heating and air conditioning needs.
Ductless Mini-Splits
High-efficiency zone-controlled heating and cooling solutions for homes without traditional ductwork.
Oil to Gas Conversions
Transition services from oil heating systems to more efficient gas or heat pump alternatives.
Solar Panel Installation
SunPower solar systems with available purchase or lease options and incentive guidance.