The Window Source of Mason City

Window Installation and Replacement in Mason City, Iowa

The Window Source is your go-to provider of new and replacement windows in Mason City. From sliding glass doors to windows, our expert team can help you choose the right option for your home.

The Window Source of Mason City

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(641) 210-7004

1521 15th St SW
Mason City, IA 50401

Installing New Windows, Siding & More in

  • Mason City
  • Clear Lake
  • Garner
  • Algona
  • Charles City
  • Portland
  • Freeman
  • Emery
  • Hanford
  • Rock Falls
  • And More!


Entry Doors

Patio Doors


  • Picture Window Replacement and Installation
  • Awning Window Installation and Repair
  • Casement Window Installation and Repair
  • Double Hung Window Installation Estimates
  • Double Hung Window Repair and Installation
  • New, Heavy Duty Entry Door Replacement and Installation
  • Sliding Patio Door Repair and Installation
  • Whole House Siding Installation

Storm Doors

Sliding Patio Door


Picture Window


Entry Door


Double Hung Window

Awning Window

Casement Window

Double Hung Windows

Get Free Estimate

Durable and Long-Lasting Replacement Windows in Mason City, Iowa

When a homeowner in Mason City, Iowa, needs replacement windows, quality matters. Not every window replacement company has the experience and knowledge to provide only the best windows-based on the location and home style. That’s where The Window Source of Mason City stands out when it comes to installing windows and doors. Our bay windows, picture windows, casement windows, and double-hung windows are created to handle the common weather events that happen in Mason City. Each window is built to be strong and durable to last for long periods of time. All are installed to rid your home of drafts, replace dated windows, and take care of energy inefficiencies with your current windows.

Gorgeous Replacement Windows by The Window Source of Mason City

If you have a limited budget but need gorgeous replacement windows in Mason City, The Window Source is here to help. Homeowners can choose a variety of standard windows in all the most popular styles for a reasonable price. Those who have very specific needs can select picture windows, awning windows, and other exquisite options in custom styles to get the aesthetic desired. No matter what style appeals to you, The Window Source of Mason City can meet your needs. We can create windows that fit any space or vision you have for your home. In addition, we offer entry door installation, home siding installation, and patio door installation. It’s the perfect facelift for a home that a family loves.

Choose the Premier Window Replacement Company in Mason City

Whether you want Energy Star vinyl windows, double-hung windows, or custom windows, The Window Source in Mason City can provide it. We have a talented team of technicians who can install doors and windows in the spaces you want to provide the look you hope for. If you’re ready to make a change, reach out to us and learn more about new home windows.

Real, Local Reviews From Happy Customers


We are so glad we decided to go to the window source. We had them replace all 26 windows of our house. The owners were very nice, and professional, when they came to do the free estimate for our windows. They didn't pressure us into any sale, and got us a better deal then window world for an equivalent window. Their install team was great. They have the new windows in and sealed very well. We don't hear the wind nearly as much with the new windows, and the house is not drafty anymore. It was a really great experience, and I can't wait to work with them again on other projects we need done.

Garrett Roegner

Service: General window replacement
Positive: Professionalism, Quality, Value

Charles Seely

Window Source Q&A

Is it worth it to replace my windows?

Is it worth it to replace my windows?

Older windows are notorious for being leaky and inefficient. At The Window Source, we are constantly improving our technology to be more energy efficient. Installing new windows can realize up to an 80% return on investment when you sell your home. Coupled with the savings you’ll see on your energy bill, the cost of window replacement can often be quickly offset.

How do I know when to replace my windows?

How do I know when to replace my windows?

Anytime you notice damage on your windows, it is a good time to have them looked at by an expert. Damage can be caused by water, insects, and father time. Your old windows ar inefficient, unattractive, and can cause damage to your home, call our experts today!

How much will it cost to replace my windows?

How much will it cost to replace my windows?

The best way to determine the cost is to contract a professional and receive an in-home estimate. At The Window Source, our estimates are FREE to you.

What types of payment methods and financing do you offer?

What types of payment methods and financing do you offer?

We offer a variety of payment methods and financing options. Please contact us to hear our options.

What Warranty do you offer?

What Warranty do you offer?

Lifetime Warranty - All Window Source products come with a limited lifetime warranty. You will have peace of mind knowing that you will only make this investment in your home once. Ask your window consultant for details.