Downstairs is freezing. Upstairs is a sauna. Or one bedroom won't cool no matter what you do. This is fixable, and a lot of the time it doesn't need a new system.
You probably came here because…
- One floor is 8-10 degrees warmer than the other
- One specific room won't get comfortable no matter what
- The system runs constantly but rooms far from the unit stay warm
- You've been told you need a second system or a mini-split
What’s actually happening
Uneven temperatures between floors is usually one of three things: not enough airflow to the far rooms, not enough return air to the system, or a system that was undersized when it was installed.
The contrarian take: a lot of HVAC guys will try to sell you a second system or a mini-split before checking the cheaper stuff. Sometimes it really does need that. Most of the time it's a damper adjustment, a return-air upgrade, or a duct rework that costs a fraction of the price.
Zoning is the middle ground – dampers in the ductwork that direct air where it's needed, controlled by separate thermostats. Good option for a two-story with one system that mostly works.
What we do about it
Check every return grille
Walk the house. Every return grille should be clear and open. Doors to bedrooms should be undercut so air can get back to the return. If your return is small or in one central location, that's often the whole problem.
Check damper positions
In the ductwork you may have manual dampers (small levers on the duct trunks). If someone adjusted them wrong, one branch can be starving. We can rebalance these in an hour.
Consider zoning before replacement
If the system is sized correctly but you have two-story delivery issues, adding zoning with motorized dampers costs a fraction of a whole new system and often solves it completely.
When to just call
Before you spend money on a second system or a mini-split, get us out for a Manual J load calc and a duct evaluation. If you actually do need more capacity, we'll say so. If you don't, we'll tell you that too. Call (423) 637-1846.
Ready to fix it?
Call the family that’s been doing this in the Sequatchie Valley since 1996.