Our energy audit tests show exactly where and how home upgrades could be saving you money.

Looking for lower energy bills and a more comfortable, healthy home?

Schedule your FREE Green Team energy audit or solar analysis today.

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Upgrade Your Home with Green Team

Green Team is Long Island’s premier provider of home comfort and energy efficiency solutions. We help local homeowners in Nassau and Suffolk counties increase energy bill savings and improve their overall home health with services including:

  • Cellulose & Spray Foam Insulation
  • Air Sealing & Weatherization
  • Energy Audits
  • Building Envelope Work
Blower Door with Fan Running
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Certified home efficiency contractors are held to the highest standards of quality and building science. Green Team’s many partnerships and certifications mean we have the training and expertise to identify and execute upgrades that will decrease energy use and improve your home comfort. Choosing a company with Green Team Long Island’s credentials can:

  • Improve Your Home’s Comfort
  • Maximize Your Energy Efficiency Savings
  • Utilize Cutting Edge Building Science Expertise
  • pearl certification logoIncrease Your Home’s Resale Value (with Pearl Certification)


Free Home Energy Audits

Our detailed on-site home evaluations identify which upgrades will most benefit you.

Insulation and Air Sealing

Upgrade your insulation and air sealing to lower your energy bills and improve home comfort.

Expert Heating and Cooling

HVAC installation, repair, and maintenance saves you money and can make your home healthier.

Financing and Incentives

With rebates and low-interest loans, home improvement work has never been more affordable.

Find Out What Actual Green Team LI Customers Have to Say About Us:

  • I signed up for an audit at the Smithtown Day festival. They came and did the audit and were very nice. They insulated my attic and changed all my light bulbs. I can't wait to see my savings this winter.

    Tina, St. James
  • I must admit that when I completed the LIPA energy audit and found out that an outside company will be doing the audit, I was skeptical. But, as an energy conscious consumer I kept an open mind. My doubts dissapeared from the first contact with your company.

    Zev, East Northport
  • This company is efficient and professional. Working with everyone involved was a pleasure.

    Rose-Marie, Huntington NY
  • The workmen were very neat and precise. I was very satisfied. My heating bill is lower by 25%.

    Shirlee, East Northport NY


With all of the rebates and incentives available to Long Island residents, upgrading the energy efficiency of your home has never been more affordable. From tax and utility incentives to state-subsidized low interest financing, Green Team can help you qualify for home performance savings.