If you skip the regular AC service in Rancho Cucamonga, ca, dust and dirt would accumulate on the filters, and your unit will have to work more to give you the same amount of cooling. Constant pressure on your air conditioning unit will decrease its lifespan to a great extent. Moreover, it would also damage various parts of your unit and result in unnecessary expenses. You will also notice a hike in electricity bills as more energy would be consumed to give you the same amount of cooling.