Window AC Installation in Atlanta, GA: Sizing & Setup

Looking for Window AC Installation in Atlanta? A window air conditioner is often the quickest way to cool a room the main system does not reach, a finished attic, an apartment or an older house without ducts. A poorly installed one leaks air, drips on the siding and can even fall. Pure Air Atlanta installs window AC units so they are the right size, mounted securely, sealed against the weather and draining the right way.

When a window unit makes sense

• A single room that the central system cools poorly
• Apartments and condos where a ducted system is not an option
• Older houses with no ductwork, or additions and finished attics
• A temporary or backup cooling source during a repair

Choosing the right size

Bigger is not better. A unit that is too large cools the room quickly and shuts off before it removes humidity, leaving the room cold and clammy. One that is too small runs without stopping. Size depends on floor area, ceiling height, sun exposure, the number of people and any heat from a kitchen. The US Department of Energy has more on room air conditioners on its consumer room air conditioners page. We help you pick a unit, or we install one you have already bought.

What a proper installation includes

1. Window check. We confirm the window type: double-hung, sliding or casement, and the opening size.
2. Electrical check. Larger units need the right outlet and circuit, and we check before plugging in.
3. Mounting. We use the support bracket and fasten the unit so it cannot shift or fall.
4. Sealing. We seal the side panels and gaps so cooled air and Atlanta humidity stay where they belong.
5. Drainage. We set the tilt the manual calls for so water leaves the unit.
6. Test. We run the unit and check the airflow.

Building rules and historic districts

Many condos, apartment buildings and associations in Midtown, Buckhead and Old Fourth Ward limit window units or require approval, so check your lease or association rules before you buy. In historic districts, equipment visible from the street can be an issue, and the City of Atlanta lists protected areas on its historic districts page. Ask your landlord or association first.

Looking after a window unit

Clean the filter every few weeks while it runs. Remove the unit or cover it from the outside in winter, and check the seal and bracket every spring. If you want a permanent, quieter option, ask about a [[n_mini-split-repair|ductless mini-split]] service, which also covers repair of those systems.

Window AC Installation in Atlanta neighborhoods

We serve the intown neighborhoods listed on our Atlanta neighborhoods page, including Midtown, Old Fourth Ward, Virginia-Highland, Inman Park and East Atlanta. Browse all areas we serve, read what customers say, or learn about our company.

Related HVAC services

• Mini-split repair
• AC repair
• AC replacement
• AC maintenance
• Air conditioning cleaning
• Erv installation

Window AC Installation FAQ

Can you install a window AC in a casement or sliding window?

Often yes, but these windows can need a special kit or a different mounting. Tell us the window type when you call.

Do I need a permit for a window AC?

A plug-in window unit does not normally need a permit, but your lease, condo association or historic district may have rules. Check with them first.

What size window AC do I need?

It depends on the floor area, ceiling height, sun exposure and the number of people. We can size it for you.

Can you remove my old window unit?

Tell us when you book that you have an old unit to remove, and we can plan for it.

How much does window AC installation cost?

The price depends on the unit, the window and the access. Our pricing page explains how we quote.