J&J Heating & Air is a Charlotte-based HVAC contractor with a 3.3 Google rating across 4 reviews. The low review count and rating should be carefully considered by potential customers. At least one detailed review raises a serious concern about a capacitor replacement where the customer alleges used parts were installed and charged as new, with the part failing within a month and the contractor becoming unresponsive to warranty claims.

With very few reviews and a mixed rating, J&J Heating & Air has an insufficient track record to assess with confidence. Potential customers are advised to request written documentation of parts and labor warranties, verify that parts installed are new, and ensure a clear point of contact for post-service follow-up before committing to any work.