Weatherization Assistance for Connecticut Residents

Designed to assist low-income households for free.

Say goodbye to soaring energy bills and hello to a cozier living space.

Reduce Your Heat and Utility Bills

Understanding Weatherization

Weatherization helps improve energy efficiency by sealing air leaks, insulating walls, attics, and floors, and optimizing heating and cooling systems. By reducing the energy needed to heat or cool a building, weatherization lowers energy bills for homeowners and tenants, saving them money in the long run. This makes your home healthier, cooler in the summer, and cozier in the winter.

Heating system tune-ups and repairs.
Blower door-guided air-sealing.
Attic and sidewall insulation.
Health & safety inspections.
No-Cost Weatherization

The US Department of Energy funds the Weatherization Assistance Program and assists low-income persons in minimizing energy-related costs and fuel usage in their homes through retrofits and home improvement measures.


The Weatherization Assistance Program uses the same eligibility criteria as the Connecticut Energy Assistance Program. The eligibility is set at 60% of the State Median Income. For multi-family dwellings, at least two-thirds of the tenants must be income-eligible. Learn more.

For Connecticut Homes

This program is specific to residents living in Fairfield and New Haven Counties. Not you? Click here

Working with CET

Nearly 50 years of experience

Half a century of experience as a leader in designing and delivering successful residential energy programs for income-eligible programs.

We Care

CET is at the forefront of innovation, spearheading initiatives to enhance access to underserved communities serving thousands of households annually.

Bilingual Staff

Don’t speak English? No problema! We have staff who can explain everything to you in Spanish from start to finish.

The windows weren’t really insulated, the walls were not insulated, the floors were cold during the wintertime. We would have to pretty much hibernate upstairs in the bedrooms because it was just so cold. Now … we can cook in the kitchen and walk around barefoot and I don’t have to worry about my children getting sick.

Holly, CET Customer

Apply Now

Here’s how you can contact us for any questions or concerns.


(860) 781-7124

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This material is based upon work supported by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) under the Weatherization Assistance Program Award Number DE-EE0009892.0001 administered by the Connecticut Department of Energy and Environmental Protection (DEEP).

Frequently Asked Questions

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We envision a world that has embraced and advanced just and resilient climate solutions.

CET is an equal opportunity provider and employer. 

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