It sounds like you are eligible for the Weatherization Assistance Program, which is a nationwide program available to help people who earn less than 200 percent of the federal poverty line to make their homes more energy efficient. To see if your income qualifies you for this program, click here.

If you qualify and you would like to learn more about how to apply, contact your county’s Weatherization Program manager. Here is the contact information for Snohomish County, in Washington State:

Bill Beuscher
3000 Rockefeller Avenue – MS 305
Everett, WA 98201-3511
Phone: (425) 388-7202
FAX: (425) 388-7311

For others in Washington State wondering about this program, here's a complete list of weatherization agencies by district.