The Window Source of Middle Georgia offers unmatched home comfort throughout the seasons. Our top-quality windows are specifically crafted to offer resistance against heat and cold, leading to remarkable energy efficiency. Wondering how this benefits you? Our superior windows not only keep you comfortable in your Macon, Warner Robins, or Dublin home, but also promote significant savings on your energy bills.
Our commitment to quality means we meet or even surpass the current standards for ENERGY STAR® Version 6.0 across all US states. What’s more, our selected glass packages can go beyond the Northern Zone requirements by up to 48%.
- U-Factor – This measures the rate of heat flow through a window. A lower U-Factor indicates a high-performing window that can help to reduce your heating and cooling costs in cities like Gray, Jackson, or Forsyth.
- Solar Heat Gain Coefficient (SHGC) – This rating determines how much solar radiation can pass through a window. A lower number means less solar heat gain and fewer UV rays entering your Perry, Jeffersonville, or McRae home.
- Visible Light Transmittance (VT) – This is the amount of light that a window allows to pass through, measured on a scale from 0 – 1. A higher number means more light can enter, brightening up your room in Eastman, Byron, or Ft Valley.
- Condensation Rating (CR) – This determines a window’s ability to resist condensation on the inside surface. The CR is a number between 1 – 100, with a higher number indicating better resistance to condensation, crucial for homeowners in Butler Cochran, Hawkinsville, Covington, Barnesville Soperton, or Milledgeville.


Energy Efficient Glass Ratings
NFRC Ratings | U-Factor | SHGC | VT | CR |
Energy Miser 2-IS | .22 | .24 | .38 | 53 |
Energy Miser 2 | .25 | .24 | .40 | 64 |
Energy Miser IS | .26 | .26 | .50 | 41 |
Energy Miser | .30 | .27 | .51 | 52 |
Clear (No LowE) | .49 | .59 | .61 | 38 |
*Air Infiltration ratings are ≤ 0.3 US (≤ 1.5 Metric) or better for all Window Source Windows.
Energy Miser glass options keep you warmer in the winter and cooler in the summer.

All Energy Miser Options Are UV Resistant
Damaging UV rays can impact your home more intensely than you may realize. Without adequate protection on your windows, these rays could cause fading to your precious items inside your home. At The Window Source of Middle Georgia, we offer UV resistant windows that serve as a sunscreen for your dwelling, providing a shield against harmful ultraviolet rays without considerably diminishing the natural light that enters. Our windows come with Low-E coating options, enhancing window performance and substantially reducing fading and sun damage to your interiors like furniture, carpets, and flooring, helping them retain their vibrant colors and charm. Each of these energy-efficient features translates into savings for homeowners in Macon, Warner Robins, Dublin, Milledgeville, and the surrounding areas. Money saved is money earned!

