Will retail buyers pay more for a brand new HVAC and efficient ductwork?

[Geo K.]

Our company redevelops properties in the Orlando vicinity. We look for broad market properties like 3/2 in good school districts. We have one in an old neighborhood and we want to bring it back to the top of the market. We have a decision to make. 

For sure we will put brand new HVAC units. The decision is to either patch the current ductwork or replace it with brand new and more efficient work. The difference is like $2K which is not a deal breaker in any way, but the issue is you never know where else you will need extra spending. 

2 HVAC technicians said, you have to put brand new ductwork. If we do, and we rearrange some of the returns and vents we can actually reduce the tons of the units from 3 to 2.5. 

2 HVAC technicians said, just patch the work, the ductwork is good enough. Also, they said to keep the 3 ton unit. 

So the question is, as a retail buyer, will they care to pay a premium for brand new insulated ductwork with a brand new unit?

We are responsible investors and we want to do the right thing, we just don't want to leave profit in the table. 

Thoughts?