How to Replace Your Old Air Conditioning System

Your choice of cooling system affects your energy bill. If you need to replace an old or failing air conditioning system, or are ready to upgrade, we recommend that you:

1. Find a Contractor.

A DC-licensed HVAC contractor can help you make sure your choices are eligible for rebates. Confirm that your new efficient air conditioning equipment is compatible with your existing HVAC system to be eligible for the rebate and result in expected energy savings.

View Compatibility

2. Choose Efficiency.

DCSEU offers rebates on many models of energy efficient cooling systems.

View Eligible

3. Get a Rebate.

DCSEU rebates help offset the increased cost of high-efficiency cooling systems.

View Rebates

Tips for Cooling Down This Summer

Before you upgrade your cooling equipment, consider the most cost-effective way to save money and energy on cooling–reducing your air conditioning needs. This can be done in several ways:

What You Can Do

How it Will Help

How Expensive Is It?

Delay heat-producing tasks

Wait to do any dishwashing, baking, or laundry, until the cooler evening or early morning hours.

No cost

Keep cool air in & hot air out

When it’s cooler outside than inside, open your windows. When it’s warmer outside than inside, close your windows and draw window coverings against direct sunlight.

No cost

Use energy-efficient light bulbs, such as CFLs or LEDs

Incandescent light bulbs lose 90% of their energy as heat.


Use fans (ceiling, table, floor, or wall-mounted)

Fans circulate air in a room, creating a wind-chill effect that makes you more comfortable in hot weather.


Use bath fans

Removes heat and moisture generated by showers.


Plant shade trees

Planting leafy shade trees on the east and west sides of your home will block heat and sunlight.


Install and use a whole house fans

Pulls air in through windows and exhausts warm air from the attic and roof.


Insulate and air seal

Prevents heat from entering your house.


Get Started


Cooling equipment must be installed by a DC-licensed HVAC contractor in order to qualify for rebates. Contractors must have a valid DC Master Ref/AC license to offer cooling rebates.

Qualifying Product

Qualifying Efficiency Level

Rebate Amount

Central Air Conditioning CEE Tier 2

≥ 16 SEER and ≥ 13 EER


Central Air Conditioning CEE Tier 3

≥ 18 SEER and ≥ 13 EER


Apply for your rebate online


To search for eligible equipment, please visit the CEE/AHRI website. Confirm with the DCSEU or contractor to determine that equipment is eligible for rebates. Apply for a rebate online if you have worked with a contractor to install qualifying equipment. Equipment must be installed on or after 10/1/18 to qualify for rebates. For more information, contact us at 202-479-2222 or