NEIF Financing

As an Approved Contractor of the National Energy Improvement Fund (NEIF), the nation’s only Certified B Corp and US Department of Energy Home Improvement Expert lender, Think Windows offers transparent and trusted payment options to help our customers “Go Greener, Affordably.” 

NEIF EnergyPlus Overview for Homeowners


NEIF makes financing for energy-efficient home improvements easy and affordable. Borrowers can enjoy transparent, simple interest, fixed-rate, and low-payment installment loans. Home improvements are program specific and can include heating & cooling, air sealing & insulation, geothermal, and solar & other energy projects.

Philadelphia Neighborhood Home Preservation Loan Program


Restore, Repair, Renew is an initiative of the City of Philadelphia to help Philadelphia homeowners access low-interest loans to invest in their properties. Lender participating in the program is offering 10-year, 3% fixed Annual Percentage Rate loans that range from $2,500 to $50,000* to eligible homeowners. 

Energy Star

Federal energy-efficient home improvement tax rebates may be available.