Energy-Efficient Windows for Indianapolis, IN, Homeowners

Significant amounts of energy are lost through old, broken, and drafty windows, which can drive up heating and cooling costs. At L.J. Stone Company, Inc., we aim to help Indianapolis homeowners combat these issues with our high-performance, energy-efficient replacement windows. Designed to insulate your home and minimize heat transfer, our windows will help maintain a comfortable interior temperature so you can spend less time fidgeting with the thermostat and enjoy lower monthly energy bills.

A Guide to Energy Efficiency

energy efficient windowsWe always want our customers to be 100% satisfied when they turn to us for replacement windows. One way to ensure this is to discuss some of the many confusing terms that are associated with energy efficient windows, including:

  • U factor – This term is indicative of how easily heat energy can pass through a window. Windows with low U factors will typically insulate better than those with higher U factors.
  • Solar heat gain coefficient (SHGC) – The SHGC of a window indicates the amount of solar radiation that can pass through it. Windows with low SHGCs will more effectively block radiant heat from a home and keep it cooler. However, in cooler climates like ours, retaining some solar heat may be beneficial, especially during the winter months. We’ll help you decide which SHGC level will best meet your needs.
  • Visible transmittance (VT) – This term refers to how much visible light is transmitted through a window. Though a high VT will help maximize daylight in your home, it’s important to remember that the special coatings used on window glass to block UV and infrared light will diminish VT to a certain degree.

Our Energy-Efficient Windows

Now, let’s focus on the energy efficiency of the replacement windows from L.J. Stone. We proudly install these outstanding windows because they are chock-full of energy-saving features, including:

  • Multiple panes of glass, covered in low-E coatings
  • Comprehensive weather-stripping
  • Argon gas fills
  • Intercept™ spacer technology
  • Full interlocks at the sashes

All of these components work together to form a highly insulative window, keeping heat inside your home during the winter and outside during the summer. To learn more about our energy-efficient window products, contact L.J. Stone today. We are proud to serve homeowners in Indianapolis, IN, and surrounding areas.

Why Choose L.J. Stone Company

Most Experienced Installation Team In The Area

Our in house, seasoned professionals have undergone extensive training & have tackled countless installations. Their attention to detail & focus on quality workmanship can handle any challenge that comes their way.

A+ Reputation

We have earned our A+ reputation one customer at a time over 46,000+ projects & more than 700 5-Star reviews. We believe that every satisfied customer is a testament to our commitment to excellence & trustworthy, high-quality performance.

No-Nonsense Guarantee

We stand behind the exceptional quality of our work & customer service. That's why we offer a No-Nonsense Lifetime Workmanship Warranty on every remodeling project we undertake.

Indiana Through and Through

When you choose us for your home remodeling project, you are not just working with a company; you are partnering with a team that is invested in the community & cares about your satisfaction. 50+ years of stability & reliable service.

Read What Our Happy Customers Are Saying


Would highly recommend LJ Stone!

“Excellent experience from beginning to end! They removed our old bathtub/shower surround and installed a new bathtub/shower with glass door and did a fantastic job. Looks even better than we imagined and has completely updated the look of our bathroom. High quality materials and a very rich look. Everyone was very friendly, professional, informative and kept us updated throughout the installation process. Would highly recommend LJ Stone!”

Sean D.

Great experience!

“LJ Stone came in and replaced our shower/bath with a new shower. The installer came in and to be honest, we hardly new they were here. It only took them a day and a half, and the next day I enjoyed a nice warm shower. What impressed me most was how clean they were in the process. For taking out an old tub, and doing a bit of drywall work there was virtually no cleaning we needed to do behind him. The only way you knew he had been here was the wonderful shower he left behind. Great experience!”

Rob H.

Great company and you back up your products!

“The window installers from LJ Stone did a great job! Very nice, polite and cleaned up as they went, we really appreciated it! They were here for two days, were right on time, and did a fantastic job! I have always recommended LJ Stone, we had windows, siding, and a new bathroom installed in Greentown, IN by LJ Stone that’s why we keep coming back, great company and you back up your products!”

Charlene E. / Greentown, IN


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