Call us today!


Energy Saving Glass Installation in DFW

High-Efficiency Replacement Windows

Our windows are built to resist the heat and cold, offering four-season comfort. This not only keeps you comfortable, but also saves you money through energy savings. Need proof? We meet or exceed the current standards for ENERGY STAR® Version 6.0 requirements in all 50 states and can exceed requirements for the Northern Zone, by up to 48% with select glass packages. Below are four common ratings that are provided for windows certified by the National Fenestration Rating Council (NFRC).

  • U-Factor – A measure of the rate of heat flow through a window. A lower U-Factor indicates a higher performing window that can help reduce heating and cooling costs.
  • Solar Heat Gain Coefficient (SHGC) – The amount of solar radiation allowed to pass through a window. The lower the number, the less solar heat gain and UV rays the window permits to enter.
  • Visible Light Transmittance (VT) – Ranging from 0 – 1, visible transmittance is a measure of how much light passes through the window. The higher the number the more light can pass through.
  • Condensation Rating (CR) – CR measures how well a window resists the formation of condensation on the inside surface. CR is expressed as a number between 1 – 100.The higher the number, the better a product is able to resist condensation.
Window requirements per region - The Window Source of Dallas-Fort Worth
Energy star requirements - The Window Source of Dallas-Fort Worth

Cardinal 366 LowE glass options keep you warmer in the winter and cooler in the summer.

energy saving image - The Window Source of Dallas-Fort Worth

All Cardinal 366 LowE glass options are UV resistant

Harmful UV rays can do more damage to your home than you might think. For example, if you don’t use the proper precautions on your windows, these rays can fade valuable items you have inside your home. Our UV resistant windows can act as a sunscreen for your house, blocking damaging ultraviolet rays without noticeably reducing the light coming inside. The Low-E coating options on our windows increase window performance and help to significantly reduce fading and sun damage to your furnishings, carpets and floor, so they stay colorful and beautiful. All of these energy saving features will save you money!

uv ray on windows - The Window Source of Dallas-Fort Worth
Clear insulated glass can block some UV rays
window bouncing uv rays to save energy - The Window Source of Dallas-Fort Worth
Low-E insulated glass can block the vast majority of UV rays

What is the Energy Star Certification?

Energy Star is an international standard for energy-efficient consumer products. This same standard applies to many products such as kitchen appliances, building products, computers, etc.

The Energy Star window certification program in the United States is designed to help you select energy-efficient windows optimized for your climate.

Energy Star replacement windows must meet minimum performance criteria to qualify for Energy Star certification. The NFRC criteria are based on whole window performance ratings and are different for each of the four United States climate zones as follows:

  • Northern Zone: U-Factor of .27 or less, SHGC any
  • North Central Zone: U-Factor of .30 or less, SHGC of .40 or less
  • South Central Zone: U-Factor of .30 or less, SHGC of .25 or less
  • Southern Zone: U-Factor of .40 or less, SHGC of .25 or less

What does Low-E mean for my windows?

The term Low-E means low emissivity. Low-E is a coating treatment applied to the window pane.

When a window is treated with Low-E, the surface emits lower levels of radiant heat. All surfaces reflect, absorb, and transmit heat. A Low-E coating reduces the amount of heat transfer through the window. 

Hence, the Low-E coating reflects heat, so your home stays cooler in the summer and warmer in the winter. 

The Low-E coating is applied to the inside of the pane, so it won’t scratch off.

In addition, Low-E protects against UV fading of any furniture that receives direct sunlight.

We guarantee the certification of our Energy Star replacement windows, so you will receive the best Low-E that is optimized for the Pikes Peak region.

What are the advantages of Argon Gas?

Window efficiency is further improved by using Argon gas to fill the space between the panes.

Argon gas is denser than air and therefore provides more thermal efficiency than having air between the panes. The Argon gas acts as an insulator, working in both summer and winter to protect your home from outside temperatures.

Argon gas also helps prevent frost from forming at the bottom of a window and improves the sound barrier capability of a window, thus lowering the noise in your home from outside sources.

Argon gas is odorless and non-toxic and should last the lifetime of a double-glazed window.

Will I get a return on investment by installing energy-efficient replacement windows?

The return on investment from lower utility bills depends on the type of windows you are replacing, and the style of window you are installing.

Did you know a gap in your window frames as small as 1/16 of an inch lets in as much cold air as leaving the window open three inches?

If you have old, leaky, single-pane windows with wood or aluminum frames, then you are going to enjoy a significant reduction in utility bills.  We often see savings of 25% or more. 

Window style is also a factor in improving the energy efficiency of your home.

Picture windows, casement windows, and hopper windows are the most energy-efficient styles of windows. This is due to the air-tight nature of the design of these windows. Therefore, you need to factor window style, window size, and the condition of your existing windows into your energy savings calculations. 

You should also consider the increased value of your Dallas-Forth Worth home that will result when you install new high-efficiency replacement windows. Your home will be worth more and will gain curb appeal after you upgrade your windows. 

Call The Window Source Today For A Free Estimate!

See What Our Customers Are Saying About Us

Excellent experience! The quote process was fast, detailed, and reassuring. 35 custom windows, half with arches - and I am 100% satisfied with the outcome and cost. The owners, Chris and Becca, are delightful to work with and respond quickly to questions. Their install crew worked hard and diligently while remaining jovial. Don’t skip an opportunity to have The Window Source upgrade your curb appeal.
Christina Gray
We had 11 windows replaced by The Window Source of DFW and would highly recommend this company. Every employee we worked with (Chris, Becca, Justin, Joe, and Kyle) was incredibly kind, professional, and knowledgeable. The windows are a great quality for a reasonable price. It was a very positive experience!
Kaitlin Welsh
We had the best experience with our window installation. Prices were very reasonable and the installation process was a breeze. Chris and Becca did a great job keeping us up to date with our order status and were quick to answer any of my questions. We love our new windows and would recommend this company to anyone!
Josh J
I had two sliding windows installed by Jonathan. He did an amazing job!! He was very friendly and professional. Had the install done in about one hour. Window source of DFW is a top notch company! The owner Becca was very friendly and responded to any questions I had during the process... I will be using them for any future windows that I may need. Very professional company! And the windows are very high quality. Thank you again window source of DFW.. I'm a customer for life!
Aaron Moss
Had a great experience, from the initial quote all the way through installation. The owners communicated regularly throughout the process, and Hugo and his team did a great job. The windows are of high quality and come with a lifetime glass breakage warranty. Very happy with my decision to go with The Window Source of DFW.
Ben Bain