Save energy and money with energy efficiency programs

It’s easy to save energy and reduce your natural gas bills with our savings tips and energy efficiency offerings. We have options to help you save in your home.

As a sponsor of Mass Save, we provide programs to save you energy and money.

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Home energy tips

Saving energy can help you save money, plus it's good for our planet. The savings could lower your bill and provide you more comfort in your home. You can start saving today with our energy saving tips for every room.

Get the Tips

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Need new natural gas appliances?

We offer rebates toward the installation of qualified high efficiency heating, water heating and kitchen equipment.

See Available Rebates

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Start with an Online Energy Assessment

Our online assessment provides a fast, easy intuitive way to learn about the energy efficiency of your home. Once the survey is completed, you’ll receive customized advice on how to begin saving energy right away.

Start Saving Now

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Get a no-cost Home Energy Assessment

Through October 31, we will donate a coat to a child in need for every customer who signs up for a no-cost energy assessment.* Once you sign up, you’ll receive an evaluation of your home’s energy efficiency, recommendations for upgrades, and generous discounts on energy efficiency improvements to help you save.

Sign Up Today

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Income-eligible weatherization

Income-eligible customers can receive home weatherization, attic and wall insulation, air sealing, weather stripping, natural gas furnace repair or replacement, and more – all at no cost.

Find Out if You're Eligible

New home construction

Building a new home? Work with Columbia Gas and Mass Save to build your home with improved energy savings and high quality construction from the day you move in.

What You Get

Building new home

*Columbia Gas of Massachusetts will donate $22 to Operation Warm for each of its customers in Massachusetts who requests a Home Energy Assessment from October 1 – October 31, up to $11,000.

Have an emergency?

If you smell gas, think you have a gas leak, have carbon monoxide symptoms or have some other emergency situation, go outside and call 911 and then our emergency number at 1-800-525-8222.