Many stores sell in-wall air conditioner units, including Home Depot, Best Buy, and the online store Amazon.com. These companies list a wide range of air conditioners in their online stores, and carry a range of name brands like LG and Frigidaire.
Manufacturers such as LG offer the ability to search for a distributor that sells a wall air conditioner at the price a customer is looking for, because some stores may offer different deals. As of February 19, 2015, Living Direct offered a sale of LG's 13,000 BTU wall air conditioner at $519.00, whereas Home Depot offered the same appliance at the higher price of $599.00. On the LG official website, the suggested price of this appliance is $649.00, so when shopping for this specific appliance, this is the price that major stores will use as a basis for their own prices.
Wall air conditioners are sold at most stores that carry air conditioning appliances, so customers can locate the appliances they prefer at local stores as well as the major stores listed above. The service available from each store depends on the warranties offered both by the store and the manufacturer of the appliance. Shopping around can lead to the discovery of a cheaper air conditioner.