Call Now
Website
Call
Business Details
Your Trusted Partner for Window & Door Replacement in San Antonio
At The Window Source of San Antonio, we are dedicated to delivering premium replacement windows, doors, siding, and gutters tailored to meet the unique needs of Texas homeowners. With over 20 years of combined experience, our team of licensed and certified professionals prioritizes quality, energy efficiency, and personalized service. Our commitment to excellence begins with sourcing high-performance materials from trusted manufacturers, including ENERGY STAR-rated products designed for San Antonio's climate.

Every installation is backed by a double lifetime warranty, ensuring long-term value and peace of mind. As a locally owned and operated business, we take pride in reinvesting in our community while maintaining transparency, integrity, and exceptional customer satisfaction. From free in-home consultations to meticulous attention to detail, we strive to make every project stress-free and transformative for your home.
Services
Replacement Windows Replacement Doors Replacement Siding Patio Covers Gutters
Highlights and features
  • We offer over 20 years of experience in window and door replacement.
  • Our products include double lifetime warranties for long-term peace of mind.
  • We are locally owned and deeply invested in the San Antonio community.
  • Our team provides free in-home consultations with no high-pressure sales tactics.
  • We specialize in energy-efficient solutions tailored to Texas climates.
What people say
Phenomenal job Very professional Excellent work Stress-free experience Highly recommend
Services
Replacement Windows
We provide premium replacement windows tailored to enhance energy efficiency, curb appeal, and comfort. Our options include awning, casement, double-hung, and specialty-shaped windows. All installations feature high-performance glass, lifetime warranties, and expert craftsmanship. Our team ensures seamless integration with your home's design while meeting ENERGY STAR guidelines for Texas climates.
Replacement Doors
Our replacement door services include entry, French, patio, and storm doors designed for security, durability, and style. We offer free consultations to help you select energy-efficient options that match your home's aesthetics. Every installation includes lifetime warranties and meticulous attention to detail, ensuring lasting value and improved insulation.
Replacement Siding
We install vinyl, stucco, and sculptured stone siding to protect and modernize your home's exterior. Our siding solutions improve energy efficiency, weather resistance, and resale value. Backed by lifetime warranties, our installations are performed by skilled professionals committed to precision and customer satisfaction.
Patio Covers
Custom patio covers are designed to extend your living space while providing shade and weather protection. We use durable materials tailored to withstand Texas heat and storms. Our team ensures seamless installation that complements your home's architecture and enhances outdoor usability.
Gutters
Our gutter replacement and maintenance services safeguard your home from water damage. We install high-quality, durable gutters that ensure efficient drainage and prevent foundation issues. Backed by lifetime warranties, our solutions are designed for longevity and optimal performance.
Questions
What services does The Window Source of San Antonio offer?
We specialize in window, door, siding, and gutter replacements, along with patio covers. All services include lifetime warranties and free consultations.
Do you provide energy-efficient options?
Yes, our windows and doors meet or exceed ENERGY STAR guidelines for San Antonio's climate, reducing energy bills and improving home comfort.
Are your installers licensed and insured?
Yes, our team consists of licensed, certified professionals committed to safety, quality, and adherence to industry standards.
What areas do you serve?
We serve San Antonio and surrounding counties, including Bexar, Guadalupe, Comal, and Wilson.
Is financing available?
Yes, we offer financing options to make home improvements accessible and affordable for our customers.
What warranties do you provide?
All products include double lifetime warranties covering materials and workmanship, ensuring long-term satisfaction and protection.
Reviews (6)
Tamales Talamantez
Oct 11, 2021 Report
Ordered my windows on November 2020 and paid cash. In March of 2021 they installed all but one window because measurements where wrong. After numerous of appointments (3) and moving furniture away from the window. they still can't seem to get it right. Here we're in October 2021 My appointment was scheduled for the 18th @ 9am -11am no courteous call was made to us that they are running late. Until I called the main office. Running late be there at 1pm. I have lost time from work for every appointment made. Promises where made . I was trying to hold off on writing a review .
Jon Moore
Sep 25, 2021 Report
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.
Carlos Valadez
Mar 31, 2021 Report
Positive:Professionalism,Punctuality,Quality,Value
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 cant say enough good things about this company. Would definitely recommend to all my neighbors, friends, and family.
Service:Window installation
Maclovia Rodriguez
Aug 08, 2020 Report
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. Im 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
Antonio Maldonado
Jul 11, 2020 Report
Follow Up Review: After reading my review, two employees of The Window Source showed up at my home and we talked about my concerns. They first apologized for the miscommunication and they also explained to me some of the issues that were due in part to the manufacturer. They cleaned up the windows from the outside and made them look better. I thank them for that. Original review: Wish I had as good of an experience with The WIndow Source as the other reviewers have had. The pricing was fair and the breakdown of everything was nicely presented by Anthony. After a long wait for the windows because
Regina Torrez
Jul 28, 2019 Report
The Window Source design consultants were experienced in design, even super imposing a 10 ft door to allow me a preview of their product. When their installers came in they were extremely professional, in no time they had taken down the door and installed the new door, sweeping and cleaning. The finished product was as, if the door was a New Home installation. The Window Source continued in replacing my homes windows. I would recommend anyone looking to update to consider, The Window Source Team. Very Satisfied
Regina Torrez