The Window Source of San Antonio

You Deserve The Windows You Want at a Price You Can Afford

Finding a reputable window company in San Antonio can be a challenging task. You work hard for your money and your home and you want the best value as well. Here at The Window Source of San Antonio we only offer the HIGHEST QUALITY energy-efficient replacement windows that you can find on the market today.

The Window Source of San Antonio

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(210) 942-7074

6800 Fairgrounds Pkwy
San Antonio, TX 78283

Installing New Windows, Siding & More in

  • San Antonio
  • Bexar
  • Guadalupe
  • Comal
  • Wilson
  • Atascosa
  • Medina
  • Kerrville
  • Hays
  • And More!


Entry Doors

Patio Doors


Storm 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 Door Repair and Installation
  • Gutter Repair and Installation

Storm Doors

Sliding Patio Door


Picture Window


Entry Door


Double Hung Window

Awning Window

Casement Window

Double Hung Windows

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The Window Source of San Antonio Offers a Personal Touch, Quality, and Experience

It’s not always simple to find a window replacement company that offers a combination of quality and experience. Expecting a personal touch is unheard of for many, but it’s something we pride ourselves on at The Window Source of San Antonio. All of our new home windows and replacement windows are also high quality and energy-efficient to meet your needs. If you spend too much on energy costs, are still using single-pane windows, or have broken seals on your windows, it’s time to get replacement windows for your San Antonio home. Choosing new energy-efficient windows and patio doors could save money on bills, make your home look nicer, and give you peace of mind.

The Window Source of San Antonio: Trusted Window Replacement Company

Window damage can happen anytime and anywhere. It leads to the need for window replacement from a great window replacement company. At The Window Source of San Antonio, we can install a bay window, awning window, basement window, casement window, or others. We’ll ensure the custom windows are sealed well to keep out rain and wind. We also offer patio door installation, entry door installation, and new vinyl siding to create an updated look on your home. Our staff will work with you to determine what the best windows and doors are to meet your needs. The work will be done with care to ensure the best results and quality you can trust.

Reach Out to The Window Source of San Antonio for New Home Windows

Whether you need vinyl siding, replacement windows, or patio doors, The Window Source of San Antonio can help. We provide a one-stop-shop for all these things and more. When you are ready to update to energy-efficient windows, reach out to us for more information.

Real, Local Reviews From Happy Customers


The Window Source of San Antonio did a WONDERFUL JOB installing windows on my new custom home! Everything on my house was custom built and made and I wanted to find the best windows for My home and after looking and researching several window companies in San Antonio, I could not be more pleased with the job they did. I worked with Anthony and he explained every detail of the window and the process from beginning to end. Erica and the rest of her office staff were always in constant communication with me and always provided weekly updates on the status of my windows. If quality, price, impeccable customer service and superb communication is what you want, look no further than The Window Source of San Antonio! Thanks TWS for making my experience remarkable!

Marta Owen

I have to say few business today can do what Window Source did. First off. Sales person was very professional and knowledgeable. It did take awhile for windows to come in, but that is no fault of the company. Installation was very professional and prompt. The windows are great quality and they repaired issues during installation with no problems. They have earned my upmost respect. I hope more people consider Window Source. You will not be disappointed. Thx you again for a job well done.

Jon Moore

Window Source was awesome! Installers were on time and professional. They stayed late to ensure installation was complete and never once complained. Thank you Moses and your team at Windows Source! If you need some windows, give them a call!

Joseph Cantu

Moses and his crew were amazing! The windows are a very good quality and the price is a very great value. His crew was very respectful, efficient and professional. I can’t say enough good things about this company. Would definitely recommend to all my neighbors, friends, and family.

Carlos Valadez

I used The Window Source of San Antonio to replace the windows in my home and I was completely amazed with the entire process. The customer service was impeccable from start to finish and I was beyond impressed with the communication they provided. I was consistently updated about the progress of my project on a weekly basis and the installation was scheduled conveniently around my work schedule. I’m extremely impressed with the level of professionalism and knowledge they provided me throughout the entire process and the windows were the perfect addition to our home. Not only were they esthetically pleasing, they significantly reduced my energy bill. Overall, they went above and beyond and deserve more than 5 stars!

Maclovia Rodriguez

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.