There are various signs that indicate the need for HVAC maintenance. First and foremost, if you notice a decline in system efficiency, such as inconsistent heating or cooling, it may be time for a check-up. Unusual sounds or odours coming from the HVAC unit can be indicative of underlying issues, alongside increased energy bills without a corresponding change in usage suggest reduced efficiency. Regular inspections, preferably before each season like we mentioned, can help catch potential problems early and ensure that your HVAC system operates optimally, providing comfort and efficiency.