A whole-house standby generator installation running $5,000-15,000+ is a real financial commitment — most homeowners don't pay entirely out of pocket, and understanding the financing landscape helps you compare offers on equal footing.

Large home backup generator, the kind typically financed by homeowners
Whole-house-class generator installations commonly run $5,000-15,000+, financed rather than paid upfront.

Manufacturer and dealer financing

Generac, Kohler and Cummins dealers frequently offer in-house or partnered financing plans, sometimes with promotional 0% APR periods for a set term — worth asking about directly, since these promotions aren't always advertised upfront.

Home equity loans and HELOCs

For homeowners with equity available, a home equity loan or line of credit often carries a lower interest rate than dealer or personal financing, though it uses your home as collateral and involves more paperwork and closing costs than a simple dealer plan.

Personal loans

Unsecured personal loans avoid using your home as collateral, but typically carry higher interest rates than home equity options — a reasonable choice for buyers who want to avoid a secured loan and can qualify for a competitive rate.

What to compare across any option

  • APR and whether it's fixed or variable over the loan term
  • Any promotional 0% period, and what the rate jumps to afterward
  • Prepayment penalties, if you might want to pay it off early
  • Total cost over the full term, not just the monthly payment — a lower payment over a longer term can cost more overall