Updated September, 2025
Shade can decrease energy usage and reduce stress on your air conditioning system. Here’s how to shield your AC unit from the sun to increase efficiency and improve your comfort.
Will Shading Your Air Conditioner Save You Money?
According to the EPA, shade cools the air around the outside condenser, increasing efficiency by as much as 10 percent. But if you really want to slash your energy bill, plant trees strategically beyond the condenser to prevent the sun from heating your home. Effective shading with trees around the house can cut air conditioning costs by as much as 50 percent.
How Do You Shade Your Outside AC Unit?
- Choose the Correct Side
Hopefully, your air conditioning unit is already placed in a spot that receives little sunlight. That would be the north or east side of your house. (The north side stays cooler longer.)
Plant at least two or three trees on the side of your house where your AC is located. For example, a six- to the eight-foot-tall deciduous tree will provide shade for your unit within a year of planting it.
Plant a series of low-growing bushes and shrubs around the condenser, but not too close. Allow for about two to three feet of clearance between the appliance and any surrounding vegetation. This will help keep the ground cool without restricting airflow.
- Shade Your Windows
West-facing windows receive full sunlight during the day and evening. Plant trees that will grow 10 feet taller than your windows and keep them to within 20 feet of your windows.
This will help keep the majority of sunlight from entering windows, taking some of the load off of your AC system.
Smart Ways to Shield Your AC Unit (Without Harming Performance)
Protecting your air conditioner from the elements and extreme heat is a great idea – as long as you do it correctly. Here are some effective ways to give your AC condenser a break from sun and debris:
- Strategic Landscaping: Planting shrubs or trees to the south or west of your AC unit can provide valuable shade during the hottest parts of the day, potentially lowering the unit’s workload. Choose deciduous trees or tall shrubs that lose leaves in winter (so the unit still gets sun in colder months to prevent ice buildup). Keep plantings at least 2–3 feet away from the condenser to maintain airflow and allow access for maintenance.
- Install an AC Sun Shield or Screen: Lattice panels or manufactured AC screens can block direct sun without fully enclosing the unit. Position a screen a few feet away on the sunniest side. This can drop the surrounding temperature a bit and also block lawn mower clippings or windblown leaves. Ensure any structure is open on all sides and top – never box in the AC completely, as it will restrict critical airflow.
- Use a Cover (Off-Season Only): Covering your AC condenser with a breathable cover during fall and winter can keep leaves, seeds, and snow out of the coils. Just remember to remove the cover before spring usage – running the AC with a cover on can cause serious damage. Also, choose a cover that doesn’t trap moisture (mesh sides are good) to prevent rust.
- Keep the Unit Clean and Level: A unit that’s sitting level on a solid pad is less likely to vibrate or incur damage. Over time, pads can sink or tilt – correct this if it happens. Additionally, regularly spray off the condenser coils with a gentle hose stream (power washers are too strong) to remove dirt and dust. A clean coil dissipates heat better, meaning your AC won’t have to work as hard, especially under a blazing sun.
A little shade and protection can extend the life of your AC and improve efficiency, but always balance it with the unit’s need to “breathe.” By following these tips, you’ll help your air conditioner handle the dog days of summer more easily while avoiding any unintended consequences.
Protect Your Air Conditioner From Sunlight!
Bottom line: Keeping your AC unit out of direct sunlight can cut operating costs and improve performance. However, even the most effective shading can’t overcome a sluggish central air system. Make sure your air conditioner is operating at peak efficiency with routine maintenance. For all of your cooling needs this summer, depend on Southport Home Services.
Frequently Asked Questions
