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March 2024 by Carmen Huaman
They did a wonderful job!
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March 2024 by Shazia Begin
Excellent products and good value for money. Fast responses. Have recommended to several clients now, and will continue to recommend. Thank you for keeping window replacement affordable
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March 2024 by Kayleigh Guzek
I had an great experience with certified windows. The owner came out to take a look at my windows and give me an estimate; he wasn’t pushy which I really appreciated. Once I decided on what I wanted, his team set a plan and was very efficient in their work. Would highly recommend for anyone who needs windows!
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March 2024 by Pam Voyles
Fast, friendly, efficient, fair prices.... who could ask for more? And my dining room already feels so much warmer (winter time) with a new patio door that is insulated and installed properly. Highly recommend!
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March 2024 by cyprien nguyen
Great services. Good communication. Installation was very professional and quick.
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March 2024 by Gabriel Sartor
Great value on new windows/installation. Jim went above and beyond to satisfy my condo association's rigid application process for replacing windows. Installation crew was efficient, clean and courteous; ten new windows took only half a day.
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February 2024 by carol aubrey
Certified window company replaced all 33 windows in my house. They worked with me as I navigated my HOA to be sure we had all the necessary components. The Quality of the windows is superb. The installers were prompt, courteous and thorough. After the install, they cleaned up the mess and left my house tidy.
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February 2024 by MAHESH CHAMINDA
Certified Window Co. Jim is the best. Did not waste my time giving me High-pressure sales. Can’t compare the price to Window Nation or window world much better price for much better Window. Jim delivered what he promised. Joe Window installer his crew got done 37 windows within a day no time wasted, professional job.Three companies I got quotes from they were two times higher for lesser grade windows.
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December 2023 by Laura Ann
Jim and his crew did an amazing job on our windows! We highly recommend them!! So glad we found on Google search
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October 2023 by Michael Kiriakou
I'm very happy that I contacted Jim at Certified Windows. I had nothing but a Great and seamless experience.The quality of the windows and service were second to none. Jim, who is very knowledgeable, always communicated and stayed in touch through the entire process.The team was professional,efficient and exceeded my expectations.I would highly recommend them.Service: General window replacement
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September 2023 by R R
Just wanted to share my thoughts on my recent experience with Jim and his crew at my townhome in Fairfax.From initial consultation to the final installation, Jim and crew were extremely courteous, respectful, knowledgeable, and prompt. Excellent customer service, friendly staff, and so far, excellent work!I love my new windows, and I would highly recommend anyone looking for an amazing window replacement company to give Jim a call, you won't regret it!Service: General window replacement
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September 2023 by KC Chronopoulos
I hired Jim in 2020 to replace my windows at a rental property of mine - not only was he very professional and prompt-he did exactly what he had promised. No hidden agendas! Since then I’ve referred him and his company to several of my clients. They were all very pleased as much as I was. The quality and the value is there and he definitely responds in a timely manner. Would I refer him clients again, of course I will - he’s become my window buddy!! Thank you Jim for all you have done and continue to do. Kc
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August 2023 by Keri Fox
Our house looks clean and fresh after our new window installation. Amazingly, the timeline was presented and the windows were delivered and installed right on schedule. We have shared our experience with friends. Highest compliment!Service: General window replacement
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August 2023 by Tammy Lynch
Jim is personable and very professional. He goes above and beyond to be honest regarding your needs. Would not hesitate to do business with this company again.
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August 2023 by Donna Bridges
We used Certified Windows for window replacement for my mother's home in Fairfax. From start to finish, everything went smooth. Great prices, product and installers! Highly recommend!
