5 Signs Your Commercial RTU Needs a Tune-Up — Not a Replacement

Your rooftop unit is struggling. The building isn't cooling evenly, the energy bills are up, and your maintenance vendor just quoted you $12,000 to $18,000 for a new unit. Before you sign that purchase order, it's worth asking a critical question: does this system actually need to be replaced, or does it need a tune-up?

The answer matters more than most business owners realize. A poorly maintained RTU can exhibit every symptom of a failing system — but respond dramatically to a professional tune-up. We've seen systems that were days away from a "replacement quote" deliver years of reliable service after a thorough tune-up. And under EmPOWER Maryland's commercial HVAC programs, that tune-up can be substantially covered by utility rebates.

Here are the five most common signs that your commercial RTU is a tune-up candidate, not a replacement candidate.

When Replacement IS the Right Call

To be fair, some situations genuinely warrant replacement rather than a tune-up:

Tune-Up vs. Replacement: The Numbers

The economics are clear for systems that are good tune-up candidates: with EmPOWER Maryland covering up to 85% of the tune-up cost, the out-of-pocket investment can be recovered in energy savings within a few months.