When the weather is hot and humid, it’s tempting to blast on the air conditioning and let the cool air delight your skin. Realistically, this isn’t the most cost effective way to spend your summer, but there are ways to invest in your home, which will prevent you from relying on your central air cooling unit.

Step 1: Update Windows

Over time the seals on your windows break, which only lets cool air out and warm air in during the summer. So if you desperately need a window makeover, this update can save you money down the line and increase the value of your home. Depending on the brand of triple-glazed windows, you can save anywhere from 15-30% on your energy bill. Triple-glazed panes reduce the amount of heat from the sun that enters your home, and they also provide a barrier so the cool air doesn’t escape. Even during the winter, this type of window will keep your heat in and the cold, frosty chill of the season outside where it belongs.

Replacing windows is a costly endeavor, so if you have to put a hold on this project, at least place a film on your existing windows. Low-E Films help deflect about 70% of the sun’s heat and 99% of UV radiation.

Step 2: Seal Doors

Replacing the broken weather stripping on doors is another way to ensure that your precious cold air is staying inside. The material for weather stripping should cost around $20, and home improvement stores make it easier for the DIY home owners by selling weather stripping kits.

Step 3: Install Solar Screen or Shades

Companies such as Hunter Douglas, Solar-Screen Co., Inc. and Kennady Company, Inc. sell stylish and customizable vertical blinds and Roman shades to block the sun’s rays from heating up your house. Before purchasing, make sure that the screens or shades are PVC-free and made from recyclable fabrics.

Even if you choose to act on one of these three green renovations, you can reduce your air conditioning and heating costs all year round. In addition, you will enhance your home’s appearance and value.