Call for a free estimate: 1 (888) 964-7003 (ROOF)

Qualities of ENERGY STAR®-Qualified Replacement Windows

Choosing ENERGY STAR®-certified replacement windows can improve your home’s energy efficiency, which can help reduce your monthly energy consumption. Home remodeling contractor Colonial Remodeling, LLC discusses the qualities that make replacement windows qualified for ENERGY STAR certification.

Qualities of ENERGY STAR®-Qualified Replacement Windows


ENERGY STAR is a voluntary labeling program created by the Environmental Protection Agency and the Department of Energy, as a means to identify energy-efficient products at-a-glance. The first products to bear the ENERGY STAR labels include computers and printers. Today, the ENERGY STAR labeling program now includes any product that consumes or affects consumption of electricity, including HVAC systems, dishwashers, and replacement windows.

How Replacement Windows Affect Energy Consumption

You might be wondering how replacement windows can be labeled as energy-efficient as they don’t use electricity at all. This is because windows are part of your home’s energy envelope, an enclosure that also includes the attic and exterior walls.

The energy envelope needs to be airtight and have sufficient insulation in order to prevent heat transfer, the cause of heat loss during cold days, and heat gain during hot days. Unlike siding installation products, which are installed at the exterior, windows (and entry doors, for that matter) are part of both sides, and therefore can significantly affect energy efficiency.

Qualities of an ENERGY STAR-Qualified Replacement Window

Replacement windows are tested for certain qualities, primarily insulation. Unlike the attic and exterior walls, where conventional insulation can be used, replacement windows are mostly made of glass, which happens to be a naturally-conductive material. To qualify for ENERGY STAR, a replacement window must feature double or triple-pane glass. Eliminating contact between interior and exterior surfaces reduce conductivity. Combined with insulated window frames and additional features such as insulating gas and spectrally-selective coatings, a replacement window can meet or exceed the criteria for ENERGY STAR qualification.

Colonial Remodeling, LLC is your number one provider ENERGY STAR®-qualified replacement windows and James Hardie siding. Give us a call at (703) 822-7222 or fill out our contact form. We serve clients in Arlington, VA, and other surrounding areas.

Recent Blog Posts
We may not control what Old Man Winter throws our way, but we can prepare …

How to prevent and deal with ice on your roof Read More »

Often referred to as “Hardie Board,” James Hardie siding is the most widely installed fiber …

How to Care for your James Hardie Siding Read More »

A roof problem often leads to the realization that it’s time for roof replacement. While …

Traditional Asphalt vs Metal Roofing: Which is a better investment? Read More »

To match or not to match, that is the question. When it comes to choosing …

How to Coordinate Your Siding with Your Stone Veneer Read More »

As longer daylight hours bring warmer temperatures outside, many thermostat “wars” heat up inside. The …

KEEPING UP WITH CURB APPEAL: Eco-Friendly and Energy Efficient Exterior Updates Read More »

It is that time of year again when the weather is ever-changing in the DMV …

What to do when you have a roofing emergency Read More »

Since the beginning of the pandemic, home renovations have gone through the roof (pun intended). …

Upgrades that are Often Overlooked in Older Homes Read More »

While we’ve been enjoying a relatively mild winter (so far!), ice and snow are bound …

Keeping up with Curb Appeal: Preventing Ice Dams in Your Attic Read More »