Window & Door 101

Putting in new windows or doors is a big investment, so here are a few key things we feel are important to understand prior to making a choice.

  1. Be sure the products you choose are tested by the NFRC (National Fenestration Rating Council). They are a third-party nonprofit that certifies window and door rating and labeling.
  2. Consider the impact your existing windows/doors have on the beauty, value, and interior comfort of your home and what you want to achieve with replacement windows/doors.
  3. Consider the following four things when you begin searching for replacement window/door options: energy efficiency, aesthetics, durability and maintenance.


“Energy efficiency” is a manipulated and misunderstood phrase in the window and door industry. The fact is, not many manufacturers can provide you with the unparalleled variety of window and door designs that maintain best-in-class performance like THEBCO Windows & Doors. We began our company for this very reason; to offer the best of both worlds — beauty and performance — like no other. So here is what you need to ask when comparing brands:

What is the U-Factor and Solar Heat Gain and is it right for your climate? THEBCO has specially designed glass options for the Wisconsin climate zone.

How low is the air infiltration rating? Air seeping in around the window frame and sashes will impact the performance of your windows in a big way. Our composite windows and doors with provide the absolute lowest air infiltration available.


Your home is one of the most valuable investments you will make. Replacing your windows and doors not only adds value, but adds to your comfort and protection no matter the age of your home. THEBCO windows and doors are designed to provide a lifetime of comfort, backed by a lifetime, non-prorated, transferable warranty.


Wood windows or doors often require scrapping, painting and staining to maintain their beauty. Our premium, high-tech vinyl windows and doors are virtually maintenance-free, inside and out, so they never need staining or painting. Plus they look like wood and sometimes BETTER than wood in that we can make the frame slimmer so you have more “viewing” area.

Our windows are also designed for easy cleaning. Many styles tilt to the interior, allowing you to stay safely in your home instead of climbing on ladders. Also, consider adding Solar Clean® to your windows, which allows nature to clean your windows for you with sun and rain.


Adding curb appeal and lasting style to your home is one big reason to replace old windows. THEBCO Windows and Doors offers a variety of styles and options to allow you to design a window that fits your home’s interior décor and exterior to a “T”. Consider adding grids, exterior paint, or Madera interior wood trim to bring an extra special touch to your home. Our windows also feature a contoured mainframe that mimics the look of real wood windows, giving your home the beauty you desire, all while remaining maintenance-free.


For more information on replacement windows from Thebco including our flagship Restorations line call us at 608-249-2905 or check us out online at Or feel free to stop by our showroom at 4126 Robertson Rd, Madison, WI 53714 to check out some window design options in person!

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