Here’s What You Need To Know About Entryway Energy Efficiency
At a glance, almost all entry doors look relatively similar. Outside of obvious differences like staining and paint colour, you may find yourself looking at two doors side by side and wondering, “why does one cost so much less than the other?”

Why Should You Care About Energy Efficiency?

All entry systems are not created equal, and even though what’s on the outside is important, it’s what’s on the inside of the model that counts. Entry systems are expensive and can be quite a hassle to choose, arrange, and install, so you want to be sure you’re getting the best possible entry system that will last you through decades of Canadian winters.

Having an entry system that is energy efficient can reduce your overall heating and cooling costs by upwards of 10% annually. This is especially significant if your home has a large entryway (double doors or a large transom), or if your main living spaces are off the main entrance. When your door lets in cold or hot air, your heating and cooling system may have trouble regulating temperature, which can cause cold drafts or overheated spaces. Energy-efficient entry systems also protect the floors and furniture of your home by reducing UV sun damage to your home, which can cause your interior to lose its colour over time.

So what makes an entry system energy efficient? And how can you spot the differences?

Energy Efficient Doors Have A Tight Fit And Sealed Weatherstripping

 

Sill

The custom sill ensures that your entry system lines up perfectly with your door and that the entry system is fully supported. The Dorplex sill comes with a thick aluminium extrusion and outswing sill that prevent moisture from entering your home.

Sweep

The Door sweep sits at the bottom of the door and lines up with the sill. The sweep is made with 10 fins (compared to 6) in order to keep out wind and rain. The sweep also works to keep in cool air during the summer and creates an impenetrable seal at the base of the door.

Weatherstripping

If you’re not sure about the energy efficiency of your current door, an easy way to test it is to turn on your porch lights in the evening and shut your door. Any light that comes through your entry system is where you may be losing heat or cooling because of gaps between your frame and door. This is why each of our doors comes complete with weatherstripping along the post, and why our doors are shipped and built as complete units. In doing this, we are able to ensure a completely sealed system using both magnetic and compression technology.

 

Energy Efficient Doors Have Specific Core Materials

The most important thing to consider when it comes to the energy efficiency of your entry system is what it’s made of. At Dorplex, we use 24 gauge steel slabs. The slabs are made from pressure treated pre-finished wood and filled with a polyurethane insulation. We do this in order to maximize both the safety and the insulation of your unit. Many people think that wood doors are the sturdiest material when it comes to entry systems, but those units warp over time. Fibreglass doors allow for more customization and a higher rate of protection.

 

Energy Efficient Doors Have Multiple Glass Panels

Dorplex glass panels are multi-paned and treated in order to ensure that your home is safe from the elements. Each of our glass inserts is built by our trained professionals in-house, so that we can ensure that the glass 100% lines up with the opening of the door.

 

Energy Efficient Doors Are Certified

There are multiple certifications for entryway energy efficiency. Dorplex is a certified Energy Star partner, which means our doors have gone through rigorous rounds of testing in order to ensure that the quality is up to standard. If you’re not sure which entry system is right for you, or which are efficient, Energy Star has a range of brands that offer high quality and energy-efficient options.

 

No matter what entry option you choose, going into your search with ample information is the best way to choose the best entry system for your home. Choosing a door that is energy efficient is an investment not only in your home, but in sustainability. If you’re thinking of purchasing a new door, click here to check out our vast range of options, or click here to check out our inspiration gallery.

Why Fiberglass-Reinforced Composite Jambs Are Essential for Large Glass Door Systems

When homeowners invest in large doors with expansive glass, the focus is often on design, light, and visual impact. Whether it is a patio door, a multi-panel sliding system, or a statement entry door, glass heavy doors create stunning architectural moments. What is...

Finishes & Coatings: Why Water-Based Paints Are a Big Deal

In the window and door industry, innovation usually happens beneath the surface—inside insulation chambers, behind glass technology, or within structural materials. But one of the most meaningful technological advancements of the last decade is happening right where...

Canada’s NAFS/CSA Framework: Why It Matters in 2025

North American Fenestration Standard (NAFS) compliance—with the Canadian Supplement and CSA A440 standards—underpins real-world performance in tough climates. If you sell in Canada (or to northern U.S. regions with similar loads), NAFS + CSA is the language architects, inspectors, and energy auditors speak.

Energy Efficiency in Flux: Labels, Incentives, and What Homeowners Need to Know

Energy messaging is undergoing a rare period of turbulence. On the one hand, Energy Star remains the most recognized efficiency signal for residential windows, doors, and skylights, with U.S. guidance long noting potential HVAC savings (averaging up to ~13% on heating/cooling) for certified products.

Windows & Doors in 2025: Growth, Caution, and the New Normal

After a choppy 2024, the 2025 window and door market sits in a “cautious growth” posture—expanding where fundamentals are strong, but trimming sails around tariffs, rates, and mixed housing data. Trade groups describe an industry that kept investing through uncertainty: capacity additions, product upgrades, and digitalization are all advancing, even as leaders manage cost shocks and hiring gaps.

Tariffs, Materials, and Pricing: What 2025 Means for Windows & Doors

If you felt price lists shift this year, you’re not imagining it. In June 2025, the U.S. doubled Section 232 tariffs on steel and aluminum to 50%, with no grace period for goods already in transit. For fenestration, where aluminum extrusions, steel skins, and hardware are core inputs, that change flows through to BOMs within weeks. Window and Door

Dorplex Is Switching To Water Based Paints: Our Environmental Commitment

This January at Dorplex, we committed to holding ourselves to a higher standard throughout all aspects of our business. We started by implementing our partnership with Red Door Family Shelter, donating a portion of each door sold to their amazing organization. Another one of our goals for this year was to reduce our carbon footprint, and we are thrilled to announce that we have switched from solvent-based to water-based paints on all of our entry systems.

Multipoint Lock Systems: Everything You Need To Know To Keep Your Home Safe

One of the most common questions we get from our customers is about the safety and security of the entry systems we offer. Now more than ever, homeowners are concerned with the features on their entry system that protects from home invaders, and when it comes to home safety, there is nothing more secure than a multipoint locking system.

5 Ways To Check The Performance Of Your Windows

The weather has started getting cooler, and all of a sudden you notice a chilly draft that didn’t seem like a major concern over the summer. The windows begin to look a little like they’re fogging up, and you notice that when your heat bill comes it’s higher than it...

The SDL Advantage: Why A Simulated Divided Lite Is A Smart Choice For Your Home

Simulated Divided Lite entry systems allow for greater energy and weather efficiency, but what does an SDL entry system actually look like? Find out here.