Business Details
Premium Window & Door Replacement in San Antonio
At The Window Source of San Antonio, we are dedicated to delivering premium replacement windows, doors, and siding with a focus on quality, energy efficiency, and customer satisfaction. Our team brings over two decades of expertise to every project, prioritizing personalized service and locally tailored solutions. As a licensed, insured, and community-focused business, we emphasize transparency, integrity, and lasting value through free consultations, lifetime warranties, and meticulous attention to detail.Our commitment to excellence is reflected in our use of high-performance materials, ENERGY STAR-certified products, and a streamlined installation process designed to minimize disruption while maximizing results. With a reputation built on trust and reliability, we serve as a trusted partner for homeowners seeking to enhance their property's comfort, aesthetics, and resale value.
Services
Replacement Windows
Replacement Doors
Replacement Siding
Patio Covers
Gutter Replacement
Highlights and features
- We offer 20+ years of specialized expertise in window and door replacement.
- Our products include lifetime warranties for long-term peace of mind.
- We provide free in-home consultations with no-pressure sales.
- Locally owned and committed to serving San Antonio communities.
- Licensed, insured, and dedicated to quality craftsmanship.
Associations and certifications
- National Fenestration Rating Council (NFRC)
- ENERGY STAR
What people say
Phenomenal job
Excellent work
Very impressed
Cleaned their mess
Highly recommend
Services
Replacement Windows
We install energy-efficient vinyl, casement, double-hung, and specialty windows tailored to Texas climates. Our products feature high-performance glass, lifetime warranties, and NFRC-certified energy ratings. Expert installation ensures durability against extreme weather while improving home insulation and aesthetic appeal.
Replacement Doors
Our exterior door solutions include entry, French, patio, and storm doors designed for security and energy efficiency. All installations come with lifetime warranties and use materials that resist Texas heat and humidity. We prioritize seamless integration with existing home architecture for enhanced curb appeal.
Replacement Siding
We offer vinyl, stucco, and stone siding options that protect homes from Texas weather while boosting energy efficiency. Our siding installations are designed for low maintenance, long-term durability, and aesthetic cohesion with window and door upgrades.
Patio Covers
Custom patio covers provide shade and weather protection for outdoor spaces. Built with durable materials, these structures extend living areas while maintaining style compatibility with home exteriors. Ideal for San Antonio's climate.
Gutter Replacement
Our gutter systems ensure proper water drainage to protect foundations and landscaping. Installed with precision to handle Texas rainfall, these solutions prevent water damage while complementing other exterior upgrades like windows and siding.
Questions
What types of windows do you install?
We install awning, casement, double-hung, garden, picture, single-hung, slider, specialty-shaped, and vinyl windows tailored to Texas climate needs.
Do your products have warranties?
All windows and doors include fully transferable lifetime warranties covering materials and workmanship for long-term protection.
How long does installation take?
Most window or door replacements are completed in one day, with minimal disruption to your home and daily routine.
Do you offer financing options?
Yes, we provide flexible financing plans to make home improvements accessible while maintaining quality standards.
Are your services energy-efficient?
Our products meet or exceed ENERGY STAR guidelines, reducing utility bills and improving indoor comfort in San Antonio's climate.
What areas do you serve?
We serve San Antonio and surrounding counties including Bexar, Guadalupe, Comal, Wilson, and Hays.
Reviews (5)
Sandra Hasbach
Dec 11, 2021
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Anthony came out to my home and was very knowledgable with the product. I had several questions in regards to their warranty and the quality of their product and Anthony was able to answer my questions without any hesitation and showed me their VERY SIMPLE warranty. I found loopholes for other window agencies but window source does not have any loopholes and their warranty is very clear and to the point. I proceeded to making a purchase with Window Source thanks to Anthonys customer service, their quality of windows, and their amazing prices.
Tamales Talamantez
Oct 11, 2021
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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
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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
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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
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
Ivette Esquivel
Aug 27, 2020
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Sales director Anthony Came out and gave an excellent and informative presentation. He was able to answer all my questions and concerns I had regarding my window project. Their office manager Joseph was very professional and communicated very well throughout the process. He could call with weekly updates regarding our windows and was able to set up a installation date according to my business schedule. After the job was completed, Moses the owner came by to personally check the job. Im very impressed with how well they handled everything from start to finish! Everyone was professional and were
