Google reviewers rate The Window Source of Houston five out of five stars based on 427 reviews, with the owner responding to every comment. Customers frequently praise the installation crews for punctuality, professionalism, and thorough cleanup after replacing windows and doors. Positive feedback highlights effective communication, fair pricing, and the quality of the finished products. However, some lower-rated reviews criticize slow response times, high costs for specific exterior door projects, and instances of messy work sites or incomplete installations.
Google rating: 5.0 out of 5 from 427 reviews (98% five-star).
Reviews on this page: 427 Google reviews (378 with written comments, 52 with photos).
Owner responses: the business replied to 100% of reviews.
Most recent review: October 19, 2026.
Service: Window Dealer serving Houston, Texas.
Data from Google, last updated October 26, 2026.
Photos
Customer reviews
5.0
★★★★★
427 reviews on Google
5★418
4★2
3★4
2★1
1★2
Reviews from Google, shown as published (original wording, unedited).
JL
Jody Luedde3 reviews
★★★★★
Our windows look amazing! The crew did a meticulous job and all in one day!
Response from the owner · 5 days ago
Thank you for the wonderful review! We’re thrilled to hear that your new replacement windows look amazing and that our installation crew delivered the meticulous workmanship we strive for. At The Window Source of Houston, we take pride in providing high-quality replacement windows, professional installation, and outstanding customer service. Completing your window replacement project in just one day while maintaining attention to every detail is exactly what we aim for! Thank you for choosing us for your Houston window replacement needs. We truly appreciate your business!
David Mallette, Owner
The Window Source of Houston
We had 25 windows installed by Window Source of Houston, and we couldn’t be happier with the experience! Andy, our salesman, was very knowledgeable and a pleasure to work with. He helped make the process a positive experience from the beginning.
The installation team, overseen by Luis, did a remarkable job from start to finish. The workmanship was excellent, and they took great care to clean up thoroughly after the installation. Replacing 25 windows is a big job, and Luis and his team handled everything professionally and efficiently. We truly appreciate their hard work, attention to detail, and pride in doing the job right.
We are extremely pleased with the installation and would highly recommend Window Source of Houston to anyone considering new windows. Thank you to Andy, Luis, and the entire team for an outstanding experience!
Price assessment: Reasonable price
Services: General window replacement
Response from the owner · 5 days ago
Thank you so much for the fantastic review and for trusting The Window Source of Houston with your 25-window replacement project! We’re thrilled to hear that Andy provided a knowledgeable, positive, and professional experience from the start. We’re also proud to hear that Luis and his installation crew delivered excellent workmanship, attention to detail, and thorough cleanup throughout your window installation.
At The Window Source of Houston, we believe quality replacement windows deserve quality installation and outstanding customer service. Our goal is to make the entire window replacement process as smooth and stress-free as possible, from your initial consultation to the final cleanup.
Thank you for recommending us to others looking for replacement windows in Houston and the surrounding areas. We truly appreciate your business and are grateful you chose our team for such an important home improvement project!
David Mallette, Owner
The Window Source of Houston
Thank you for the great review! We’re thrilled to hear you’re happy with your new replacement windows, the quality of our products, and the service you received. At The Window Source of Houston, we take pride in providing high-quality replacement windows, professional installation, and outstanding customer service. We appreciate your business and thank you for choosing us for your Houston window replacement project!
David Mallette, Owner
The Window Source of Houston
My windows are excellent! The install crew was on time, cleaned up after the job and extremely honest. I would use them again for sure!
Price assessment: Great price
Services: General window replacement
Response from the owner · 2 weeks ago
Thank you so much for the great review! As the owner of The Window Source of Houston, I really appreciate you taking the time to share your experience. I’m thrilled to hear that you’re happy with your new replacement windows and that our window installation crew was on time, professional, honest, and cleaned up thoroughly after completing the job.
We take great pride in providing high-quality replacement windows, professional installation, and outstanding customer service throughout Houston and the surrounding areas. Our goal is to make every window replacement project straightforward, honest, and stress-free for our customers.
Thank you again for choosing The Window Source of Houston for your replacement windows. We truly appreciate your business and your recommendation, and I hope we have the opportunity to work with you again in the future!
David Mallette,
Owner
The Window Source of Houston
The windows were installed all in one day. The crew was very professional and cleaned up afterwards, to the point we only found 1 small piece of glass missed. The windows are great and would definitely recommend The Window Source to others.
Price assessment: Reasonable price
Services: General window replacement
Response from the owner · 3 weeks ago
Thank you for the great review and for choosing The Window Source of Houston for your replacement windows! We’re glad to hear that our installation crew made the process easy, completed the job in just one day, and left your home clean. We take pride in providing professional installation, quality products, and excellent customer service. We truly appreciate your recommendation and your trust in our team. Enjoy your beautiful new windows!
David Mallette
Owner
We had 23 windows replaced. One of the window had a mechanical issue which they took care of in a timely matter at no cost to us. The windows have made a big difference in our home with looks and comfort. The whole team at window source is great!
Price assessment: Great price
Response from the owner · 3 weeks ago
Thank you for the wonderful review and for trusting The Window Source of Houston with your 23 replacement windows! We're thrilled to hear that your new windows have made such a noticeable difference in the appearance and comfort of your home. While occasional issues can happen, we believe standing behind our products and taking care of our customers is what truly matters. We're glad we could resolve the mechanical issue promptly. Our entire team appreciates your kind words and your business. Enjoy your beautiful new windows.
David Mallette
Owner
Incredibly professional, fast, and amazing quality
Price assessment: Great price
Services: General window replacement
Response from the owner · 3 weeks ago
Thank you so much for the 5-star rating! We appreciate you choosing The Window Source of Houston for your replacement windows. Our team takes pride in providing quality products, professional installation, and outstanding customer service. Thank you for your trust and support!
David Mallette
Owner
We had a great experience with the whole team from the salesman to the installers! The installers did such an awesome job, took their time and was very safe. There was literally no mess left behind at all which is surprising working with glass. I am very satisfied with my purchase and the warranty that comes with the install. Peace of mind and great service!
Thank you so much for the wonderful review and for trusting The Window Source of Houston with your home! As the owner, it means a lot to hear that you had a great experience with our entire team, from your salesperson through installation.
Our installers take a lot of pride in doing things the right way—working safely, taking their time where it matters, protecting your home, and leaving the jobsite clean when the work is complete. We’re also glad to hear that our warranty gives you that added peace of mind. We truly appreciate your business and are grateful you chose our team for your window replacement project!
— David Mallette
Owner, The Window Source of Houston
My husband and I are obsessed with our new windows from The Window Source!! They were delivered in a very short time frame and only took a day to install. Great install crew - very clean, efficient, and paid attention to detail when sealing everything off. Great communication from Luis and his crew. The process was so easy working with our salesperson, Collin, and owner, David Mallette. We’ve been renovating our 80’s farmhouse and were in desperate need of an upgrade. Couldn’t be happier with our selection! Highly recommend!
Window Type: Twinsulator black aluminum
Response from the owner · a month ago
Thank you so much for the fantastic 5-star review! We’re thrilled to hear that you and your husband are obsessed with your new replacement windows and that they were the perfect upgrade for your 80’s farmhouse renovation.
Collin and our installation crew led by Luis will be so happy to hear your kind words. We take great pride in providing clean, efficient installations with attention to detail, especially when it comes to properly sealing and finishing every window. We also work hard to keep communication clear and make the entire window replacement process as easy and stress-free as possible.
Thank you for trusting The Window Source of Houston with your home and for recommending us. We truly appreciate your business and are so happy you couldn’t be happier with your new windows!
Regards,
David Mallette
Owner
Amazing work, had all windows and entry doors updated. They are professional and walk you through the entire process from start to finish. Our doors and windows look amazing and were done exceptionally well.
Thank you so much for the great review and for trusting The Window Source of Houston to replace all of your windows and entry doors! We’re proud to hear that our team kept you informed throughout the entire process and that you’re happy with the quality of the installation and the finished look of your home.
Most importantly, from one veteran to another, thank you for your service to our country. As a veteran and owner of The Window Source of Houston, it always means a little more when we have the opportunity to serve a fellow veteran and their family.
We truly appreciate your business, your trust in our team, and your service to our great country. Enjoy your beautiful new windows and doors for many years to come!
David Mallette
Owner
