The Clear Choice For
Windows, Doors & Concrete Floors

(888) 458-3630
(940) 898-9988

2832 Geesling Rd. Suite #150
Denton, TX 76208

Read Our Reviews: ★★★★★

As seen on Texas Flip and Move Good Contractor List

Free Estimate

Firm, Fair Price.
In Writing. Guaranteed.

Check Out Our



Review us on Google+


Standards Guide

Learn what to ask
before you hire
ANY contractor to
work in or around
your home.

Special Financing Available

Subject to credit approval.
Ask for details.

Remodelers, home builders, and real estate developers rely on GuildQuality's customer satisfaction surveying to monitor and improve the quality of service they deliver.

What Is the R-Value of a Window?

Posted on January 29, 2015.

Window Replacement

If you are currently in the market for replacement windows for your home, then you have probably heard references to a mysterious term called the “R-value”. If you are currently wondering what this term means and whether or not it is an important factor in selecting quality windows, here is some basic information that will help you understand why a good R-value is so important if you want high quality windows.

When people refer to the R-value of a window, they are simply referring to its level of insulation. Specific measurements are used to calculate the insulation effectiveness of a product, and it is then given an R-value rating. Homeowners that want to keep their energy costs low should try to purchase replacement windows that have a high R-value, because higher-rated products have more insulation than lower-rated products.

All homeowners must deal with regular monthly costs associated with their homes, including energy usage costs. These costs can spike substantially during the coldest and hottest months of the year, but energy-efficient windows can help to reduce energy costs by minimizing the amount of hot and cold air that seeps into or out of a home.

Although windows with lower R-values may be cheaper up-front than windows with higher R-values, homeowners who settle for lower-rated products often have to pay more in the long run because their HVAC systems have to work a lot harder to keep their homes at an ambient temperature. Because windows with low R-values are not as effective as windows with higher levels of insulation, they typically need to be replaced more often as well, which is an expensive burden for homeowners to bear.

In order to save costs in the long run, homeowners are encouraged to purchase replacement windows with high R-values that are more likely to stand the test of time while keeping energy costs low. Before buying any windows for your home, make sure you ask a company representative for the R-values of each type of window you consider purchasing.