$49 for a basic home-energy audit and a $250 credit toward cellulose-insulation upgrades ($100 value)
Appointment required, 24 hour advance notice required. Limit 1 per person, may buy 2 additional as gifts. Limit 1 per household. Valid only for option purchased. Valid within McHenry, Lake, Kane, DuPage, and northern Cook counties. valid for homes up to 3,500 square feet. Customers whose homes measure above the allotted space will incur a $50 fee. Upgrade credit is for whole attic cellulose insulation projects only.