Keep This House

Heat pumps, outages, bathrooms

How to read the quote before you sign

Someone sent you a number for a heat pump, a generator, a bathroom, or an addition. Here is how to read it before you sign.

Backup power

Transfer switch cost installed: interlock, ten circuits, or 200 amps

The generator is one invoice. The switch is another. HomeGuide 2026: manual $400–$1,300 installed, automatic $600–$2,500, interlock $400–$850. Angi typical job $1,200–$1,600, average $1,450. Ask which of those three jobs is on the bid.

Read the guide