QR Code Link to This Post I will remove any old working or not central package system for $800.00, over cost of unit and accessories, and install your new Goodman . Call Charlie Don't get caught cold and waiting when it's 30 degrees outside and 35 inside. My 2 ton unit cost is $2095.56 with 10 kw aux. heat for a heat pump. Some addition accessories may be required ( new pad , change out old fuses to breakers , new dog house flashing etc.) for the retro fit applications, but those cost should be minimal and you'll never be surprised when your final bill.