Residential: 920.233.3333

Best Windows for Winter

What kind of windows are the best windows for winter? The answer is windows built with Low-E Glass.

That’s the answer. Didn’t expect the answer right out of the gate, did ya? Well we don’t like to drag our feet. This is important stuff after all! Just because it’s almost February doesn’t mean we’re out of the winter clear yet.

So now that we know the answer is Low-E, let’s figure out what exactly that is. Well, for starters,l the E stands for emissivity.

Emissivity is defined by Merriam-Webster as “The relative power of a surface to emit heat by radiation.”

So how likely radiation is to pass through a certain substance. In our world, it’s measured in a ratio of radiant energy a surface gives off that emitted by a blackbody of a similar temperature.

When it comes to windows, then, the best way to sum it up is how likely radiation is to pass from one side of the surface to the other. This is important for your windows, because heat both enters and leaves your window in the form of radiant energy.

Ice on glass in winter

Ah Ah Ah! Get it out! Get it out! Sorry reflex…
Image credit to Jason Devaughn | Flickr

Low-E glass is created at the point of manufacture (regular glass can not be retro-fitted as Low-E, however tinting could be an alternative). It is made with a metallic material coating it on a microscopic level. You can not see this coating, so visible light passes through but radiation does not.


Keeping out vs keeping in

A lot of people tend to think of winterizing and heating as keeping the cold air out, which is definitely part of it. As we’ve discussed before winterizing to insulate windows and doors is an important part of energy efficiency. When it comes to the windows themselves, however, the goal is to keep warm stuff in.

frozen steps outside in winter

You know that open staircase you love? Be a shame if some winter happened to it
Image credit to Vincent_AF | Flickr

In colder climates like that of the Midwest, Plains and the Northeast United States, the Low-E glass is manufactured with the low-e side facing inward. This allows radiant energy from sunlight (aka heat) to come in, but not leave (we call it Hotel California glass in the biz…okay, it’s just me that calls it that and I’ve been shunned by my co workers for doing so).

You know those winter days where it looks like it should be 75 degrees or so outside with all of the sunlight? Well all of that wonderful sunny heat is able to move through the exterior facing side of the glass into your house. When it attempts to bounce right back out, however, the tiny metallic surface of the Low-E glass crosses its arms and waits for the charge.

Meaning you get to keep the warmth. Sorry, outdoors, it’s not coming back.


Why isn’t everything made of Low-E glass, then?

Great question! I mean we should be using this stuff everywhere if it’s as incredible as it sounds. There are a few reasons that have prevented Low-E from becoming the glass standard of the developed world.

The most common issue is the cost. Low-E glass can be 3 – 4 times as costly as regular window-glass. While most households will make this money back on savings from heating and cooling, the initial cost can sometimes be out of budget for window buyers.

As window and glass technology advance, however, the cost comes down and every year more efficient ways to develop and manufacture specialized glass are discovered.

To discuss your options for Low-E window installation, contact us today!

Cozy window looking out to winter

Together, we can beat winter
Image credit to r. nial bradshaw | Flickr

Call Us Today! 1.800.236.7887


I just spoke with Dave V. by phone, but wanted to be sure that my appreciation did not go unnoticed. Jeff and Mark of your residential division just left my home after spending two days replacing several storm damaged windows.  I am calling and writing to express my deep appreciation for their professionalism, expertise and spirit.  They are both an asset to your company.  With a positive experience like the one I have experienced, you can bet that if there is additional work that I need done, Omni will be my first call.   ~ Thom N. Oshkosh, WI

“Mark and Brandon are going great guns here. Thanks for sending these gentlemen to do our installation. I have a GREAT deal of confidence in them and fully expect the entire job to go as well as it has to this point.”-Jim

“Your residential installer was wonderful and did an amazing job.”-Kyle, Green Lake

“Both Steve Bridwell & Mark Willems did a great job of helping me with my patio door after my home invasion.”-Kathy, Oshkosh

I wanted you to know that Mark Willems our installer did a FANTASTIC job. He is very professional, knowledgeable and personable. He represents your company well. P.S. We have made several referrals based on our experience! -Mike & Mary Kay, Winneconne

My recent experience with Omni Glass & Paint was fantastic. I had been waiting 3 months for a part for our front door from another glass company in Oshkosh. I reached out to Omni Glass & Paint; they came to look at the door, found the part and installed the part in less than a day. The door works perfect now. I was so impressed with Omni’s work and would highly recommend them to anyone. – Matt Bakalars, Fox Valley Savings Bank

Mark and Jeff installed windows in our home in Oshkosh.  We were extremely happy with their work but more than that, they went above and beyond to install those windows and were extremely friendly and informative along the way.  They even found an issue with rotten wood that the workers who installed our siding just covered up…so we are very grateful. Because of their services we would highly recommend Omni Glass to everyone.  And the windows are outstanding too!   ~ Roxanne D. – Oshkosh, WI

I just called to compliment the man who installed my new shower door.  Jeff was very pleasant, he did an AWESOME job, everything is perfect, and he left the place neater than when he arrived!  Everything lines up, everything fits, nothing leaks! I am so happy with the job he did!   ~ Nancy, Oshkosh, WI

I just wanted to congratulate the great crew we had working at my home, they were fantastic.  I am very, very pleased with their knowledge and abilities, they were the most impressive group of people I have ever worked with. Mark was especially helpful, he was absolutely wonderful to work with. Thanks again!   ~ Rick, P

View All Testimonials
Back To Top