Green Homes Long Island, Cellulose attic insulation, NY

Keep your home comfortable & energy efficient.

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Most homeowners understand that attic insulation is the first line of defense for keeping their home comfortable and energy efficient. But how much is enough? Homeowners in Nassau and Suffolk Counties count on the efficiency experts at Green Homes Long Island to answer attic insulation questions.

Start with a Home Energy Audit

When assessing attic insulation, many of our customers start with a home energy audit which takes a look at the entire home’s performance, including attic insulation. Our home energy audit will identify areas where attic insulation is compressed or ineffective, as well as where air leakage is occurring that can cause home heat loss and minimize the attic insulation’s effectiveness.

When Should I Replace Old Insulation?

If your home has experienced a leaky roof, or there are signs of pests nesting, it’s probably time to replace your insulation. Wet or rodent-infested insulation can develop mold and bacteria and pose an unpleasant health hazard. Older insulation can also become compacted and ineffective over time. Removing old insulation, air sealing and installing new insulation provides the biggest return on investment and most effective insulation barrier.

What is the Recommended Attic Insulation R-Value?

Insulation R-values measure how resistant the material is to transferring heat. Most insulation relies on tiny pockets of air to keep heat from passing through. In our area, R-38 or more is recommended for attics. The thickness will vary among the materials used for insulation. In addition to the attic floor, many homes have ductwork located in the attic that should be insulated as well.

Air Sealing Decreases Home Heat Loss

One important component to effective attic insulation is making sure your attic area is well sealed. Air sealing helps your insulation perform by keeping air from passing through. An energy audit can identify air leaks in the attic. Before we install new insulation, we like to seal off these leaks to ensure maximum performance. In fact, conducting air sealing alone can cut as much as 20% off your monthly energy bill.

Attic Insulation Types

After completing hundreds of insulation installations, Green Homes Long Island has narrowed our attic insulation the most effective options:

Is your attic insulation old and ineffective? Contact us to set up an home energy audit 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

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