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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 planning your project for replacement windows in Eau Claire, energy efficiency should be at the top of your priority list. That’s due to the fact inefficient windows can be responsible for the largest heating and cooling loss in your house.

They can lose as much as 30% of your heating and cooling, according to the U.S. Department of Energy. So, it’s important that your replacement windows are the wisest solution for the temperatures in Eau Claire.

In picking your new windows, here are a few points to think over.

Window Panes: One, Two or Three?

Window panes are one of the most essential components of an energy-efficient window. We suggest going with at least double-pane windows, because single-pane windows are especially inefficient. They’re also subject to losing air and influencing your house’s comfort.

If your budget allows it, switching to ENERGY STAR® windows will help decrease energy bills and save you more money in the future. That’s because they work hard to keep your home’s temperature in balance, regardless of the conditions outside.

On average, ENERGY STAR says regular houses that upgrade to these windows can save*:

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

Over the lifetime of your windows, those savings can really accumulate. And you can also feel good realizing you’re helping reduce greenhouse gas emissions, which helps shield the environment.

Energy efficiency is critical 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 included on the ENERGY STAR Most Efficient 2020 list. This means they’re among the most efficient that you can buy.

Individualize Your Windows with Glass Options

Including special coatings and gas between window panes can keep your home comfier while blocking more ultraviolet rays. Regardless of where you reside, Pella provides an InsulShield® glass option that will work for your individual climate.

Selecting the Right Window Frame Material

When selecting your new windows, you’ll have a few materials to choose from. Here’s how they rate for energy efficiency:

  • Top insulation: Wood windows are rated high for insulation, as wood intrinsically transfers less heat and cold.
  • High durability: Our exclusive fiberglass windows insulate similarly to wood, plus they won’t melt or break down when experiencing temperature changes. Created for lasting durability, Pella’s proprietary fiberglass is the strongest material available for windows.**
  • Budget-friendly: Our vinyl windows are designed to work with your budget while keeping your house energy-efficient. With several chambers, these frames help reduce heat loss and boost efficiency.

Quality Window Installation Matters

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

That’s why you’ll want to choose with a company like Pella of Eau Claire, who is skilled in this service. We employ exclusive installation methods to make sure your new windows are a good fit. This prevents gaps and cracks that can allow in moisture and air that compromise your comfort.

You can also depend on our team to respect your residence during your no-mess, no-guess installation day. They’ll clean up after themselves and will even take care of your old windows.

Want to select energy-efficient windows for your house? Your local Pella of Eau Claire experts are ready to help you. Contact us at 715-836-9301 today 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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