Energy Efficient Home Services in Long Island for Comfort and Savings

Here at Home Efficiency Experts, we create the best standard when it comes to upgrades in your home. From insulation installments to heating and cooling upgrades, you can trust in us to make your home the most comfortable it can be, and save money in the long run.

Long Island’s Whole
Home Experts

When it comes to saving money on energy bills and making your home healthier and more comfortable, HVAC upgrades and home performance projects like insulation replacement go hand-in-hand.

That’s what makes Home Efficiency Experts the leading home contractor in Nassau and Suffolk Counties—our building science experts can help find the right solution for your home.

Our CEO Mark Hoffman describing the perks of working with Home Efficiency Experts

High-Efficiency Heating And Cooling Solutions

Insulation

Insulation for your Long Island home will create a barrier so that heat can’t escape during winter months and you’ll be better equipped to keep cool air inside during the summer months. It’s important to properly insulate and air seal your house so that your utility bills don’t increase and become more than you can afford.

Putting a proper seal around the building envelope will make your home more comfortable, healthier, increase its value,
and (most importantly) save you money!

Text-based promotional graphic stating "On average, you can SAVE 35% on yearly heating & cooling costs when you upgrade your systems!" with 'SAVE 35%' in large, bold, orange font and the rest of the text in orange and green.

Heating & Cooling Replacement
and Upgrades

Once your home is properly insulated and air sealed, a new high efficiency HVAC system can go a long way towards minimizing your energy bills and creating more even comfort levels throughout your Long Island home. Home Efficiency Experts specializes in money-saving, long-lasting HVAC system installation, including:

Long Island Home Energy Assessment For Better Comfort And Savings

Text graphic with the message, 'On average, you can save 35% on yearly heating & cooling costs when you upgrade your systems!', with emphasized 'save 35%' in large orange font, and the rest in smaller black and green fonts.

An assessment isn’t just an educated guess—it helps pinpoint your home’s specific weak points, and your home energy assessor will be able to walk you through the results, and explain their recommendations for home retrofits that will make the biggest difference to your home comfort, as well as your energy savings.

Energy efficiency upgrades are also much better for the environment. You’ll lower your carbon footprint by switching from fossil fuels to clean, renewable energy sources, and lowering your overall energy usage every month with a tighter building envelope and more efficient HVAC equipment.

See What Our Clients Are Saying:

Our process

Why Long Island Homeowners Choose Home Efficiency Experts

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18+ Years Of Home Performance Experience

With more than 18 years of experience, we have helped Long Island homeowners improve comfort, reduce energy waste, and enhance home performance through energy-efficient upgrades. Our experience allows us to understand the unique challenges different homes face and recommend solutions based on your specific needs.

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02

Whole-Home Approach To Energy Efficiency

Your insulation, air sealing, heating, and cooling systems all work together. We evaluate your home as a complete system to identify areas affecting comfort and energy use before recommending improvements.

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03

Local Long Island Knowledge

We understand the construction styles, weather conditions, & common efficiency concerns found in homes across Nassau and Suffolk Counties. Our local experience helps us provide recommendations that support year-round comfort.

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04

Certified Home Performance Experts

Our team follows recognized home performance standards & holds industry credentials, including Home Performance with ENERGY STAR® and Building Performance Institute (BPI) certifications. These programs support our commitment to quality workmanship and effective energy solutions.

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06

Clear Recommendations And Honest Guidance

We explain what we find during your home assessment & help you understand your options before work begins. Our goal is to provide practical improvements that make your home more comfortable, efficient, and valuable.

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05

Customized Solutions For Your Home

Every home has different needs. We provide insulation, air sealing, heating, cooling, & heat pump solutions designed to address your home's specific comfort and efficiency concerns.

Area We Serve

Home efficiency experts proudly serve Long Island with expert AC repair, heating services, cooling solutions, HVAC installation, furnace repair, and indoor air quality services for year-round home comfort.

Glen Cove
Long Beach
North Hempstead
Oyster Bay
Babylon
Brookhaven
East Hampton
Huntington
Islip
Riverhead
Shelter Island
Smithtown
Southampton
Southold

The value of a properly insulated home

SPEAKS VOLUMES!

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Lasting Comfort

Do some rooms run hot in summer and cold in winter? We can balance your home’s temperature so every room feels comfortable year-round.

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Healthy Home

Air sealing and insulation work together to improve indoor air
quality. With fewer drafts & pollutants coming in, allergy sufferers will notice real relief.

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Smart Investment

Energy efficiency adds value. In a neighborhood of similar homes, yours will stand out — and sell for more — when it’s energy efficient.

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Lower Bills

An energy efficient home keeps warm air in and hot air out, reducing strain on your HVAC system and lowering your monthly bills.