Want to go green and save money? Remodeling your home with a few key features could improve its energy efficiency and increase its value over time.

In fact, homeowners who choose to take on green remodeling projects can lower their energy consumption by 30 to 50 percent, according to the Sustainable Building Council.

A study by the National Association of Home Builders (NAHB) and McGraw Hill Construction says the number of remodelers who tackle more than 60 percent of their projects with “green products” is expected to double over the next five years.

Now that these products are more readily available and affordable, it’s easier than ever to go green. Earth-friendly products are being incorporated into more home improvement projects to help with utility costs, air quality and the long-term value of a home.

Here are four of the most popular ways homeowners are saving money and still helping the environment.

1. High-performing, low-emissive windows are the most common way residential remodelers are choosing to go green, according to the NAHB and McGraw Hill. While they can be expensive to install, they eventually pay for themselves through lower heating, cooling and sometimes even lighting costs.

2. High-efficiency heating, ventilation and air conditioning (HVAC) systems can help reduce your monthly energy bill and maintain good air quality in your home.

3. Programmable thermostats can help you consistently regulate your home’s temperature so you won’t break the bank or use too much energy. Many programmable thermostats only cost around $100, so this purchase pays for itself in the long run.

4. Appliances with the Energy Star seal of approval can help you go green by reducing the amount of energy you use everyday. The Energy Star stamp, which was established by the Environmental Protection Agency, is given to more than 50 different types of products that meet the highest energy efficiency standards.