WHAT IS THE BEST WAY TO COMPARE WINDOWS?

The only accurate method to compare windows is to look at the NFRC rating for each one you are thinking about. NFRC labels that have received independent accreditation rate the general window performance using the U-Factor and Solar Heat Gain Coefficient (SHGC). The lower these ratings are, the better the window will perform. U-Factor or SHGC should be prioritized based on your climate. Regardless of the sales pitch, you should choose the NFRC ratings that are optimal for your environment and your financial situation.

Does The Window Store install ENERGY STAR® windows and patio doors?

Yes – Any window or patio door ordered with a Low E glass upgrade must meet the ENERGY STAR® standards for the climate zone. This promise is always offered in writing on your contract paperwork to ensure that you order and receive the best Low E glass that is suited to your particular temperature zone.

Are there tax credits available when replacing windows and doors?

With our ENERGY STAR® products — yes! A 10% federal tax credit worth up to $200 for windows and $500 for patio doors that adhere to ENERGY STAR® standards may be available to you. These tax credits were set to expire in 2011, however a new law called "The American Taxpayer Relief Act of 2022" extended them into 2023 and retroactively to 2022.

How can The Window Source be so much more affordable than their competitors?

The Window Source can provide you with high-quality vinyl windows at a very affordable price because of our wide national purchasing power. Our low pricing and straightforward purchase procedure also enable us to operate at a high level of efficiency and pass the savings on to you.

Is the installation process as important as the window product itself?

A window needs to be accurately measured to suit the opening and leave space for plumbing and squaring the new window. No matter how high the quality of the new window, if it is not squared and correctly plumbed, it will not seal and function well.

Replacement Windows | The Window Source of Mankato

Our Story

We are Tim and Abby Murray, local owners and operators of The Window Source of Mason City, IA and most recently The Window Source of Mankato. We love Northern Iowa and are thankful to be able to raise our girls in such a great area as well as expand our territory to beautiful Minnesota.

Our passion for assisting others and giving back to our community has brought us to where we are today. Through our partnership with The Window Source, we now have access to exceptional national-level training, support, and supply sourcing in a field we adore. We have joined a network of more than 50 stores nationwide, and we appreciate their assistance in guiding us through this process.

Together, we are excited to connect local customers to a superior, high-quality product line that fits our Northern Iowa and Southern Minnesota climate needs at an incredibly competitive price. Contact us to learn more about what The Window Source can do for you.

The Owners of The Window Source of Mankato and their family

Our business philosophy is simple — we do our best to sow good seeds, both in how we treat people and how we conduct business.

This means:

We keep our promises by doing simple things like returning calls and arriving on time for appointments.

Our sales approach is meant to keep you, the consumer, in charge and provide you with the freedom to make informed, sensible decisions without feeling compelled to buy.

After the sale, we will complete an organized installation process that will allow you to use your new products for many years to come.

Every client receives the same level of service that we demand for our own friends and family.

Peace of Mind Assurances:

Lifetime Warranty

Replacement windows, entry and patio doors, and siding from The Window Source are all covered by a limited lifetime warranty. You can be confident that this is an investment you will only make once. For more information, speak with one of our knowledgeable window consultants.

Independently Certified NFRC Labels

So that you can compare with confidence, all of our Window Source products come with the National Fenestration Rating Council (NFRC) label. The U.S. Environmental Protection Agency (EPA) uses NFRC data to establish ENERGY STAR^® guidelines. Don’t listen to the sales gimmicks — we feature NFRC data so that you have peace of mind in our products.

ENERGY STAR® Rated Products

At The Window Source of Mankato, we have a selection of products that utilize High Performance Glass that meets ENERGY STAR^® guidelines for the Southern Minnesota climate zone. You can rely on our promise of valuable energy savings when you choose our high performance glass for your new door and window replacements.

Join our growing family of satisfied Mankato area customers at The Window Source where America shops for replacement windows and doors.

The Window Source is a network of carefully selected independently owned and operated entrepreneurs backed by a national brand. The Window Source believes that local family-owned businesses, supported by industry leaders with more than 40 years of operating experience, are an ideal combination for a company that values providing high-quality customer service, exterior home-improvement products at the best prices possible. Read our review at various locations across the country and see what your neighbors and others are saying about The Window Source!

Call The Window Source For A Free Estimate Today!

507-720-0722

Online Estimate

See What Our Customers Are Saying About Us

We just had The Window Source install 6 new windows and a sliding door. They look fantastic! All the windows are triple pane and are very efficient and high quality. The fact that they were about 1/2 the price of the competition was a sweet bonus! Aaron and his team did a great job and showed up on time and were very professional. And no high pressure sales tactics – very refreshing. I would recommend The window Source to all my friends and family.

Andrew Ehlert

I am so happy with our new windows and new door. Ben installed everything for us, and he did an amazing job! I cannot say enough about the installer, he was on time, professional, fast, and his quality of work is superb . His work ethic is none like I’ve ever seen. We will definitely be using The Window Source again in the future!

Mary Shopshear

Initially, Adam Fewins was thorough and knowledgeable. The owner, Aaron was extremely generous. As a customer, David made sure I was taken care of. I'm 110% satisfied with everything! Down to workmanship, Ben Ryman was amazing installing my windows. I felt very comfortable with everyone who was Involved. If you want excellent quality windows, customer service and installation for the price, I highly recommend The Window Source.

Deanna Liddy

Great experience even given the unpredictable product delivery industry this past couple of years. Lots of communication and they were there when they said they would be and finished on time. Ben installed the windows and was polite, efficient and so knowledgeable. Professionalism from top to bottom!

Jeanne Marriott

Had several windows including a slider door and large picture window replaced. Ben and Andrea were very pleasant to work with. Very professional. Cleaned up everything while they were working and after as well. I am so happy I went with Window Sources of Western Michigan.