It can cost between $100 and $300 to have a window air conditioner installed, depending on the size of the unit and the complexity of the installation. For example, a smaller window air conditioner that doesn't require any extra drilling or modifications to the window frame may be less expensive to install than a larger unit that does. And if there are any special requirements or challenges (like installing the air conditioner in a particularly narrow window), that will add to the cost as well.

The cost of having a window air conditioner installed ranges from $150 to $1,000, depending on the type and size of the unit, as well as the complexity of the installation. For a basic installation without any special features or modifications, most professionals will charge around $200. If you need to have a hole cut in the wall or window frame, or if there are other complicating factors involved, the cost can increase significantly.