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Designing Replacement Windows: What Makes a Window Energy Efficient

Designing Replacement Windows: What Makes a Window Energy Efficient

When you’re starting your project for replacement windows in Danville, energy efficiency should be number one on your priority list. That’s because inefficient windows can be responsible for the largest heating and cooling loss in your house.

They can release as much as 30% of your heating and cooling, according to the U.S. Department of Energy. So, it’s crucial that your replacement windows are the best match for the temps in Danville.

In selecting your new windows, here are a few things to think over.

Window Panes: One, Two or Three?

Window panes are one of the most essential parts of an energy-efficient window. We recommend selecting at minimum double-pane windows, as single-pane windows are especially inefficient. They’re also predisposed to seeping air and influencing your house’s comfort.

If it will work with your budget, switching to ENERGY STAR® windows will help lower energy costs and save you more money in the future. That’s since they work hard to keep your residence’s temperature in balance, despite the conditions outside.

On average, ENERGY STAR says typical residences that install these windows can save*:

  • $101–$583 annually when replacing single-pane windows.
  • $27–$197 annually when replacing double-pane, clear glass windows.

Over the life span of your windows, those savings can really add up. And you can also feel good knowing you’re helping reduce greenhouse gas emissions, which helps defend the environment.

Energy efficiency matters to us at Pella. That’s why we’ve affiliated ourselves with ENERGY STAR since 1999 and have windows that meet or exceed certification in all 50 states. Windows from our Architect Series®, Lifestyle Series, 350 Series and 250 Series are listed on the ENERGY STAR Most Efficient 2020 list. This means they’re among the most efficient that you can install.

Customize Your Windows with Glass Options

Including special coatings and gas between window panes can keep your house more comfortable while stopping more ultraviolet rays. No matter where you live, Pella offers an InsulShield® glass style that will work with your personal climate.

Picking the Ideal Window Frame Material

When designing your new windows, you’ll have a couple of materials to choose from. Here’s how they rank for energy efficiency:

  • Top insulation: Wood windows are rated very good for insulation, because wood naturally transfers less heat and cold.
  • High durability: Our exclusive fiberglass windows insulate almost identically to wood, along with the fact they won’t melt or break down when faced with temperature changes. Designed for lasting durability, Pella’s proprietary fiberglass is the strongest material available for windows.**
  • Budget-friendly: Our vinyl windows are created to match your budget while keeping your residence energy-efficient. Including numerous chambers, these frames help reduce heat loss and boost efficiency.

Quality Window Installation Matters

Good installation is just as important as the glass and window frame material you pick for your new windows.

That’s why you’ll want to select with a company like Pella of Danville, who is skilled in this service. We use exclusive installation methods to make sure your new windows are an excellent fit. This prevents holes and cracks that can permit in moisture and air that impact your comfort.

You can also count on our team to be thoughtful toward your home during your no-mess, no-guess installation day. They’ll clean up after themselves and will even haul away your old windows.

Want to select energy-efficient windows for your house? Your local Pella of Danville experts are ready to support you. Contact us at 217-443-3355 right away to start the process!


*Ranges are based on the average savings among homes in modeled cities. Actual savings will vary based on local climate conditions, utility rates and individual home characteristics.

**Pella's proprietary fiberglass material has displayed superior strength over wood, vinyl, aluminum, wood/plastic composites and other fiberglass materials used by leading national brands in tensile and 3-point bend tests performed in accordance with ASTM D638 and D790 testing standards.

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