The guides on this site are general information for homeowners. They are not professional, legal, or safety advice, and they do not replace a licensed heating and cooling professional looking at your actual system.
Heating and cooling work involves electricity, gas, and refrigerant. Do not attempt repairs you are not trained for. If you are unsure, switch the system off where it is safe to do so and call a licensed local professional.
We work to keep our guides accurate and current, but systems, codes, and products change. We do not guarantee that any guide is complete or correct for your home, and we are not responsible for decisions made from reading it.
Any cost discussion on this site explains what drives costs and how to compare written quotes. We do not publish prices, because prices vary by home, system, and region, and any number we printed would go out of date.