How to Pick the Best Energy Efficient Exterior Doors

Energy Efficient Front Door

Post Update: Article updated June 16, 2020, and originally published on April 20, 2017, and has been completely revamped and updated for accuracy and comprehensiveness.

Whether its to lower our monthly electricity bill, make our homes a bit more Earth-friendly, or both, we all want to be more energy-efficient.

You can change out your light bulbs, and install ceiling fans, but you could still be wasting energy by missing the biggest culprits in your home. The real problem could be your doors and windows.

Luckily, there is a way to combat this problem — by replacing your exterior doors with energy-efficient ones.

Establish your budget before choosing the material and all the details. While picking an energy-saving door can be tricky if you don’t know where to start, don’t worry. We’re here to help.

Here is everything you need to know about finding the best energy-efficient exterior door for your home.


When picking out any features for the exterior of your home, it can be tempting to pick style over functionality.

But this isn’t a problem with energy-efficient exterior doors.

It is possible to find a stylish front door that will also keep your AC inside; the trick is picking the right materials.

Fiberglass Composite

The lighter and more durable option in energy-efficient doors is the fiberglass composite door.

Fiberglass doors get their energy efficiency from a dense polyurethane foam core.

There are several different versions of fiberglass doors available, giving homeowners more freedom. These doors can come in different textures, allowing homeowners the option of painting or staining them.

It is also possible to get them with a faux wood grain texture. So you can give your home the aesthetic benefits of a natural wood door with the energy efficiency of a fiberglass one.

On top of that, fiberglass doors are resistant to dents and rust.


Steel doors are not only energy-efficient. They’re also super durable and can add to your home’s resale value.

While there aren’t as many different textures available, steel doors can be painted and come in several different styles.

Best of all, steel doors can also be very energy efficient. Like fiberglass doors, steel doors also feature a thick foam center, which can help keep outdoor temperatures out of your house. However, having a steel door with glass may not be a good idea because it will lose all energy-efficient benefits.

Steel doors also often come with magnetic weather stripping. This feature will hold the door shut in place, ensuring that no air can leak out between the door and the doorframe.


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No matter how energy efficient your door is, having the proper installation makes all the difference.

Most doors come pre-hung within a door frame. Before installing it, make sure the door fits snugly in its frame. While your new door should swing easily, it should also have a tight seal.

Applying foam caulking around the doorframe will ensure that no air leaks into your home from around the door frame.

You can install a door yourself, but the best way to ensure that the final product is energy efficient is by bringing in a professional team.

Energy-efficient home

Selecting New Energy-Efficient Exterior Doors

Your air-conditioning is not likely to slip through solid walls, but a house without any entrance points doesn’t make all that much sense.

Having the wrong exterior doors can cause your home to bleed power by letting your heating and cooling out, which in turn causes you to have to crank up your thermostat to keep your home comfortable.

Energy-efficient exterior doors can be an excellent way to lower your energy bills and your carbon footprint — if you know how to pick one.

Looking to replace your exterior doors, or want to make your home more energy efficient? We can help you with that.

Contact us today, and we can assist you in finding and installing the best and most energy-efficient doors and windows for your home.