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Our team has the expertise and technical certifications to provide safe, complete service and installations on your Cold Spring Harbor area home's systems. From the essentials of heating and cooling to assessing and improving your home's performance, comfort and efficiency, Green Homes Long Island is ready to improve your home's systems. We hold memberships and certifications in these professional and business organizations:

Plumbing - Heating - Cooling Contractors Association (PHCC)

With 130 years of experience, the PHCC provides education programs and resources for all aspects of residential heating, cooling and plumbing.

Better Business Bureau (BBB) Metropolitan New York, Long Island, and the Mid-Hudson Region

Our BBB A+ rating provides our customers with the assurance that our business practices are fair and transparent.

Dr. Energy Saver Authorized Dealer
Building Performance Institute (BPI) GoldStar Contractor

Building Performance Institute is the nation’s top credentialing organization for home performance professionals. BPI ensures that home performance professionals meet quality assurance and standards as set using sound building science. Green Homes Long Island holds these home performance designations:

  • Building Analyst performs comprehensive, whole-home assessments to identify problems and prioritize commonsense solutions.

  • Envelope Professional focuses on reducing air leakage by tightening the building envelope or exterior shell of your home.

  • Heating certification focuses on your home’s heating system and insulation to improve efficiency, comfort and safety.

  • Air Conditioning/Heat Pump certification is skilled in ensuring your air conditioning and heat pump systems work efficiently and effectively within your home’s heating and cooling systems.

Home Performance with ENERGY STAR® Approved Contractor

In coordination with local electric utility PSEG Long Island, our BPI GoldStar accreditation enables us to perform energy saving upgrades for qualifying PSEG Long Island customers to reduce energy costs by as much as 20%.

Air Conditioning Contractors of America (ACCA)

The ACCA provides standards for the design, maintenance, installation, testing and performance of indoor environment systems, including air conditioning and heat pumps.

Independent Dealers

Our continued relationship with the top brands for heating, cooling and plumbing ensures up-to-date training and great service on all products. Our technicians are able to determine the best products to suit your family’s needs. Green Homes Long Island offers these brands:

  • Carrier

  • Bryant

  • Rinnai

  • Trane

  • Bradford White

Count on Green Homes Long Island for the top certified professionals to improve your home’s comfort and performance. Schedule your home audit appointment today!

What our customers are saying

  • The installation crew was helpful and efficient. The energy specialist did a good job educating me on the insulation. My house is quiet and no drafts! My electric and gas bills are smaller.
    B. G., Amityville
  • The expert from Green Homes Long Island did a great job of coaching me through the process. I was very happy with the end result, the house is a lot warmer! I am very satisfied with the job and the installation crew was excellent.
    Bob S., South Hampton
  • Green Homes Long Island was the only company to call me back.  The energy specialist was very professional and knowledgeable.  Great job and I will be using Green Homes Long Island for additional work.
    Brett G., Plainview
  • I am very satisfied with the job, the installation crew was great, A+++.  The crew from Green Homes Long Island were awesome - very friendly and professional. I heard about your through the NYSERDA site.
    Briana T., Kings Park
  • I am very satisfied with the job and I thought the energy specialist's presentation was enlightening- I'm spreading the word! I chose your company instead of another company because you are professional and knowledgeable. Overall, great job. I can feel the difference.
    Chris W., East Hampton
  • The installation crew was helpful and efficient. The energy specialist did a good job educating me on the insulation. My house is quiet and no drafts! My electric and gas bills are smaller.
    B. G., Amityville
  • The expert from Green Homes Long Island did a great job of coaching me through the process. I was very happy with the end result, the house is a lot warmer! I am very satisfied with the job and the installation crew was excellent.
    Bob S., South Hampton
  • Green Homes Long Island was the only company to call me back.  The energy specialist was very professional and knowledgeable.  Great job and I will be using Green Homes Long Island for additional work.
    Brett G., Plainview
  • I am very satisfied with the job, the installation crew was great, A+++.  The crew from Green Homes Long Island were awesome - very friendly and professional. I heard about your through the NYSERDA site.
    Briana T., Kings Park
  • I am very satisfied with the job and I thought the energy specialist's presentation was enlightening- I'm spreading the word! I chose your company instead of another company because you are professional and knowledgeable. Overall, great job. I can feel the difference.
    Chris W., East Hampton
  • I am very satisfied with the work Green Homes Long Island did for me.  Our energy specialist was very knowledgeable and the office / scheduling department were extremely accommodating!  The installation crew was professional, hardworking and very clean.
    Ed C., Stewart Manor
  • I am completely satisfied with the excellent job Green Homes Long Island did.  The office staff, especially they were outstanding and very helpful.  Our energy specialist was great as well and help us come up with the right solutions in making our home more energy efficient.  The installation crew w
    Edward M., South Huntington
  • Words cannot accurately express my gratitude to the wonderful team at Green Homes Long Island.  Thank you all for insulating my home and moving dryer vents, etc.  I am very grateful to all involved for all of their hard work, and making my home a warmer & happier place!!
    Harry L., Greenport
  • Thank you for taking care of my project promptly and professionally!

    Homowner, Brentwood
  • Your in-home energy specialist's presentation was great! I would recommend it to anyone. I chose to hire you guys because the Long Island Green Homes coordinator recommended you and had nothing but good things to say!
    Jaclyn P., Babylon
  • I am very satisfied with the work completed by Green Homes Long Island.  The installation crew was very professional, the office staff was great and our specialist was very knowledgeable and informative.  I had seen your trucks in the neighborhood and called.  The speed of service from start to fini
    Jason M., Ridge
  • I am very satisfied.  The installation crew was professional, quick and neat.  Audit was great and informative.
    Joe B., Merrick
  • The Green Homes Long Island installation crew was very good, professional, and courteous. Will use again!
    John K., Douglaston
  • I am very satisfied with the insulation work done.  The installation crew was great - professional & clean.  The office staff was friendly and efficient.  I will definitely use Green Homes Long Island for future projects.
    Joseph F., Freeport
  • The crew at Green Homes Long Island was on time, polite and clean. I chose your company because you're listed on LIPA and the National Grid Website. My house is much cooler this summer and looking forward to warmer home in the winter.
    Karen F., Northport
  • I was very satisfied with the job your team did when replacing the heater. I chose your company because of your professionalism and responsiveness!
    Kendall S., Brook Haven
  • I am very satisfied with the work completed by Green Homes Long Island.  The installation crew was great as was the office staff.  The Energy Specialist was great and very informative and professional.
    Kevin H., Riverhead
  • I am very satisfied with Green Homes Long Island.  The Energy Specialist was excellent, the office staff was very professional.  The insulation crew was top notch and did a fantastic job.  I would recommend Green Homes Long Island to all my friends!!
    Larry M., Woodmere
  • I found Green Homes Long Island on google and contacted them.  The office staff was wonderful and the Energy Specialist was great.  I hired this company because of the price and professionalism.  The installation crew was great and cleaned up.
    Leslie G., West Hempstead
  • I am very satisfied with the insulation project Green Homes Long Island did for me.  Everyone, from the office staff, to energy consultant to installation crew - were all very professional and did a great job!! Definitely a 10!!  I will recommend them to friends and family!
    Lorenzo A., Medford
  • I am very satisfied with the work done by Green Homes Long Island.  The installation crew was very courteous, the office staff was excellent and our Energy Specialist was very professional and knowledgeable.
    Muriel R., Freeport
  • Green Homes Long Island is a professional insulation company which I highly recommend.  The installation crew did a great clean job.  The salesman was very informative and professional.
    Noel I., Atlantic Beach
  • This company is very professional, the office staff was great in making a timely appointment for an energy special to meet with me.  My specialist was extremely knowledgeable.  The installation crew was professional and clean up was immaculate.  I am so pleased with this company from start to finish
    Paul B., Oceanside
  • I am very satisfied with the work performed, the installation crew was excellent!
    Richard M., Muttontown
  • This was definitely an A+ Job!  The Energy Specialist from Green Homes Long Island was extremely knowledgeable and outstanding - the reason for my return business!
    Robert S., Stewart Manor
  • I am very satisfied with the work done in my home.  The energy specialist was clear & concise with what was needed to improve my home's energy efficiency.  The installation crew was professional, clean, fast & very courteous!  Great job!
    Ruth H., West Babylon
  • I was completely satisfied with the job you did. The installation crew was professional and clean. Joe Maehr was the most knowledgeable person that I spoke to after calling 3-4 different companies to research spray foam insulation installation in my home.
    Ryan L., Dix Hills
  • I am 100% Satisfied with the insulation work completed. Green Homes Long Island got here right away and got the work done quickly and efficiently.  All of their staff were great!! Clean up excellent!!
    Scott P., Jamesport
  • I am extremely satisfied with the work completed.  The installation crew was very professional and clean workers.  Our energy specialist was very knowledgeable and personable.  We will be using Green Homes Long Island again when we insulate our attic.
    Stephen C., Merrick
  • The work performed for me was good.  The installation crew was great and clean. 
    Tom W., East Setauket
  • I am very satisfied! Your installation crew was very polite and neat! The office staff was very courteous, pleasant, and helpful. I believe my friends have already contacted you.
    Vera M., Amityville
  • The sales staff and installation crew at Green Homes Long Island were wonderful. Overall work and professionalism were greatly appreciated.

    Will M., Manorville
  • Peter was very informative and a gentleman. The two installers were hard working and never took a break. 

    Eileen M. , Farmingdale NY

Latest Blog

Reduce humidity in your Long Island home!
July 27, 2017
Nassau and Suffolk County homeowners are doing their best to get outside and enjoy the comfortable temperatures we’ve been experiencing lately. Once they get home, though, many are running into the... Read more