@bestacsurplus
The idea that every window AC must be serviced yearly is a bit of an oversimplification. Some units operate efficiently with only basic cleaning, while others may require more attention depending on usage and local conditions. Professional servicing can improve cooling performance and energy efficiency, but it shouldn't be viewed as mandatory in every situation. Best AC Surplus advises homeowners to monitor performance and schedule service when warning signs appear. Proper maintenance is just as important as selecting reliable ac units for sale in the first place.
