4 ton replacement estimate
I am looking to replace a 10 year old 12 seer 2 ton unit that services about 5/8 of my house, mostly upstairs. I have a 2 ton unit downstairs that services the area adequately, but the upstairs unit is almost never adequate. It was installed by a prior owner and evidentally undersized.
My contractor tells me my house is a heat trap (he's probably right there--brick, sharp angles, ventilated somewhat poorly) and he recommends a 3.5 ton or 4 ton, some additional ducts, enlarging some existing ducts and a second return for the upstairs. He is quoting me about $9750 after rebates for a Carrier 2 stage, 4 ton 16 seer unit with all the bells and whistles in terms of programmable thermostat and humidity control. And about $8600 for a 3.5 ton Carrier single stage 16 seer.
I do trust his judgment about the size of the unit, and I'm going to be there for another 15 years and don't mind paying for comfort. He's losing me a little because he won't breakdown the equipment cost and labor cost in his estimate and I smell a rat there. I lived in another house installed and serviced by my guy so I know his work is quality.
Sounds too expensive though. Thoughts, comments? Thanks.