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Products & Services

HVAC Systems

heating & cooling systems

heating repair

air conditioning contractors

air conditioning systems

boiler heating systems

central air conditioning

ductless air conditioning

gas furnace

high efficiency furnace

home heating systems

hvac companies

Home Energy Saving & Audit

energy efficiency audit

energy saving devices

energy saving products

energy saving tips

home energy audit

home energy conservation

Home Insulation

attic insulation

blown in insulation

cellulose insulation

duct insulation

green insulation

insulation contractors

reflective insulation

rigid foam insulation

roof insulation
spray foam insulation

wall insulation

window insulation

Water Heaters

gas water heaters

high efficiency water heater

hot water heaters

indirect water heater

instant hot water heater

tankless water heaters

water heater installation

water heater replacement

Air Sealing

sealing air leaks

air duct leakage

air duct sealing

air leakage testing

door air seal

window air leakage

Radiant Barrier

radiant barrier insulation

radiant barrier cost

roof radiant barrier


ductwork repair

ductwork installation

ductwork cost

furnace ductwork

hvac ductwork



Emergency plumbing

Plumbing repair and installation


Commercial Work

Commercial HVAC

Company Awards
We are one of 50 contractors enrolled in Long Island Power Authority's (LIPA) Home Performance with ENERGY STAR® Program for... [Read more]
The Dr. Energy Saver Network was recognized as the recipient of the silver Connecticut Quality Improvement Award Innovation Prize for... [Read more]
More Awards

Home Insulation and Energy Audit Specialist in Valley Stream, NY

Happy Customers Surrounding Valley Stream, NY
Work Requests

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Improving The Comfort & Energy Efficiency of  Nassau County Homes

At Green Homes Long Island we are the local home energy conservation experts in all of Long Island. Our company's highly trained certified contractors specialize in home energy audits, energy efficiency inspections and residential insulation upgrades.

Dr. Energy Saver Long Island is an authorized franchisee of the nationally renowned Dr. Energy Saver network of the best energy-conservation contractors across the country. We are not just a contractor company because we specialize in helping you understand your home's current energy efficiency, suggest repairs, and we also do the work! You'll receive the maximum energy and cost-saving results with least amount of hassle.

Valley Stream, NY's Home Energy & Insulation Contractor

We offer homeowners a wide variety of energy and insulation services that were scientifically designed to lessen your home's carbon footprint and save energy and money each month! We offer it all, from air sealing to ductwork to spray foam, attic, & basement insulation and much more!

At Dr. Energy Saver Long Island, we not only test and provide an evaluation of your home's energy usage, but we will provide and assessment and prioritize the proper repairs. You'll know which ones will save you the most energy and why. This will also help direct you in making the best decision for you and your family.

  • Attic Insulation
  • Spray Foam Insulation
  • Blown-in Insulation
  • Cellulose Insulation
  • Rigid & Injection Foam Insulation
  • Crawl Space Insulation 
  • Basement Insulation
  • Wall Insulation
  • Ice Damming & Icicle Prevention
  • Weatherization
  • Blower Door Testing
  • Ductwork Cleaning & Sealing
  • Home Energy Audits
  • Skylight, Window and Door Replacement 
  • Radiant Barrier Installation
Work Requests From Valley Stream, NY
Marlboro Rd in Valley Stream
Spend to much money on gas
Fir St in Valley Stream
I am looing to have my basement spray foamed.
East Gate in Valley Stream
Locating and sealing drafts, improving heating system
Union St in Valley Stream
Requesting free estimate, regarding Attic insulation / ventilation and crawl space insulation, in basement.
Franklin Ave in Valley Stream
Need estimate on insulation