Carlos Diaz was awesome to work with. He broke down the GC course through 1 Exam Prep in a way that actually made sense and never rushed through anything. Super patient, answered all my questions, and... See more
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Review summary
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I purchased my books and was told someone would be reaching out to me, that someone was Carlos Diaz. He took the time to explain everything clearly and walk me through how the entire process works. He... See more
Company replied
Carlos was excellent. He was very thorough during the intro call and made the entire process smooth and easy. By following his instructions, I was able to pass the first part—the Business and Finance... See more
Company replied
Carlos Diaz was very informative and knowledgeable about the course and how to navigate all the books needed to pass the exams. Answered all my questions and gave me his personal number to reach out w... See more
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Company details
Written by the company
Contractor exam prep license school providing certificate based training for state licensing exams across construction and skilled trades. We deliver focused study programs designed to support licensing approval, exam readiness, and professional certification.
Contact info
U.S. Outlying Islands
- (877) 775-9400
- support@1examprep.com
- 1examprep.com
4.8
Excellent
98 reviews
No history of asking for reviews
This company hasn't invited their customers, so reviews may not be representative
Replied to 100% of negative reviews
Typically replies within 1 week
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Carlos Diaz was very thorough and easy…
Carlos Diaz was very thorough and easy to understand with his explanation of getting started in obtaining my state certification
June 19, 2026
Unprompted review
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Shaniece is an excellent resource.
June 18, 2026
Unprompted review
Carlos was extremely helpful
Carlos was extremely helpful! He walked me through the entire process, mentioned things to avoid, and gave advice on how to study for the exams.
June 17, 2026
Unprompted review
Carlos is very professional and…
Carlos is very professional and helpful. And he is always available if you have any questions or concerns
June 12, 2026
Unprompted review
Reply from 1examprep.com
Thank you so much for your kind review! We’re happy to hear that Carlos was professional, helpful, and available to answer your questions and concerns. We truly appreciate your feedback and are glad you had a great experience.
I feel more comfortable with the…
I feel more comfortable with the process after the conference with Carlos Diaz. He was a great help with understanding what I need to do. Thank you Carlos
June 11, 2026
Unprompted review
Reply from 1examprep.com
Thank you so much for your kind review! We’re glad to hear that your conference with Carlos Diaz helped you feel more comfortable with the process and better understand your next steps. Carlos is a valued part of the 1 Exam Prep team, and we truly appreciate you taking the time to recognize his support.
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Great experience and attention.
June 10, 2026
Unprompted review
Reply from 1examprep.com
Thank you for your kind review! We’re happy to hear you had a great experience with 1 Exam Prep and received attentive service. We truly appreciate your feedback.
Carlos was great to deal with and very…
Carlos was great to deal with and very personable. Appreciate the call and help navigating the process.
June 9, 2026
Unprompted review
Reply from 1examprep.com
Thank you so much for your kind review! We’re glad to hear that Carlos was personable and helpful throughout your call. At 1 Exam Prep, we’re always happy to help make the process easier to navigate, and we truly appreciate your feedback.
Carlos was Great
Carlos was Great. He answered on my questions thoroughly!
June 5, 2026
Unprompted review
Reply from 1examprep.com
Thank you for your kind review! We’re glad to hear that Carlos was great to work with and answered all of your questions thoroughly. The 1 Exam Prep team truly appreciates your feedback.
Quality
In my opinion, this meeting was very productive. Carlos Diaz provided me with helpful and efficient guidance, answering all my questions. Excellent service
June 3, 2026
Unprompted review
Reply from 1examprep.com
Thank you so much for your kind review! We’re glad to hear that your meeting with Carlos Diaz was productive and that he provided helpful, efficient guidance while answering all of your questions. The 1 Exam Prep team truly appreciates your feedback and is happy you received excellent service.
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Carlos was fantastic
Carlos was fantastic. He thoroughly explained the online course, mentioned other available resources and answered all of my questions. I continue to be impressed and pleased with 1 Exam Prep and will continue to recommend 1 Exam Prep to others.
June 3, 2026
Unprompted review
Reply from 1examprep.com
Thank you so much for your wonderful review! We’re thrilled to hear that Carlos was fantastic and took the time to thoroughly explain the online course, share additional resources, and answer all of your questions. The 1 Exam Prep team truly appreciates your continued support and recommendation.
Carlos Diaz was very informative and…
Carlos Diaz was very informative and knowledgeable about the course and how to navigate all the books needed to pass the exams. Answered all my questions and gave me his personal number to reach out with any questions that I have along the way.
June 2, 2026
Unprompted review
Reply from 1examprep.com
Thank you for the great feedback! We’re glad Carlos Diaz was informative, knowledgeable, and helpful in guiding you through the course materials and exam preparation process. It’s great to hear he answered all your questions and made himself available for additional support along the way. We appreciate you sharing your experience and wish you the best as you prepare for your exams!
Carlos is amazing answers any question…
Carlos is amazing answers any question you have and really inspires you to do good
June 1, 2026
Unprompted review
Reply from 1examprep.com
Thank you for the wonderful feedback! We’re so glad to hear that Carlos was able to answer all your questions and inspire you throughout the course. We appreciate you sharing your experience and wish you continued success as you prepare for your exams!
I just had an online meeting with…
I just had an online meeting with Carlos Diaz about my HVAC license exam. Carlos explained with details how to start the process, what comes next, answered all my additional questions, gave some extra tips and advices to make hole process easier.
June 1, 2026
Unprompted review
Reply from 1examprep.com
Thank you for sharing your experience! We’re glad to hear that Carlos Diaz provided a detailed explanation of the HVAC license exam process, answered all your questions, and offered helpful tips to make everything easier. We appreciate your feedback and wish you the best as you move forward with your exam preparation!
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Carlos DIaz was very helpful explaining…
Carlos DIaz was very helpful explaining everything
May 28, 2026
Unprompted review
Reply from 1examprep.com
Thank you for your feedback! We’re glad to hear that Carlos Diaz was very helpful and took the time to explain everything clearly. We appreciate you sharing your experience and wish you success with your exam preparation!
Carlos Diaz made the onboarding process…
Carlos Diaz made the onboarding process with 1ExamPrep incredibly smooth and stress-free. From the start, he was professional, knowledgeable, and very responsive to all my questions. He took the time to explain everything clearly and made sure I felt confident moving forward. His communication and customer service were outstanding, and you can tell he genuinely cares about helping people succeed. Highly recommend working with Carlos and the team at 1ExamPrep!
May 27, 2026
Unprompted review
Reply from 1examprep.com
Thank you for the wonderful feedback! We’re so glad to hear that Carlos Diaz made your onboarding experience with 1ExamPrep smooth and stress-free. It’s great to know he was professional, knowledgeable, responsive, and took the time to explain everything clearly so you felt confident moving forward. We appreciate your recommendation and are happy to have Carlos and the 1ExamPrep team supporting you on your journey!
Carlos was a huge help and clearedup…
Carlos was a huge help and cleared up the areas I was fuzzy in!!!
May 25, 2026
Unprompted review
Reply from 1examprep.com
Thank you for your feedback! We’re glad to hear that Carlos was a huge help and was able to clear up the areas you were unsure about. We appreciate you sharing your experience and wish you continued success with your exam preparation!
Sent me damaged books and essentially…
Sent me damaged books and essentially called me a liar and asked me to return them. I sent photos. Cost me 2k. Stay away from them difficult to work with. Go with another company.
May 23, 2026
Unprompted review
Reply from 1examprep.com
We’re sorry to hear about your experience and appreciate you bringing this to our attention. That is never the experience we want any customer to have. We take pride in providing a great experience and standing behind the products and support we offer. We would be happy to replace any damaged books and work with you directly to make this right. Please contact our support team so we can resolve the issue as quickly as possible.
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So far my experience is great I was a…
So far my experience is great I was a little nervous at first but my man Carlos Diaz very quickly made me feel comfortable in showing me how to use the material at hand.
May 22, 2026
Unprompted review
Reply from 1examprep.com
Thank you for the great feedback! We’re glad to hear your experience has been positive so far. Starting the process can definitely feel overwhelming, but Carlos Diaz does an excellent job making sure our students feel comfortable and confident from the very beginning. We appreciate you trusting 1 Exam Prep and look forward to helping you succeed on your exam!
Reply from 1examprep.com
Thank you for your feedback! We’re happy to hear you had a great experience and that everything was explained clearly and professionally. Our team works hard to make the process as simple and straightforward as possible. We appreciate your support and look forward to being part of your success!
Carlos Diaz helped me out and was very…
Carlos Diaz helped me out and was very informative. He spoke good English and guided me through questions that I had.
May 21, 2026
Unprompted review
Reply from 1examprep.com
Thank you for the great review! We’re glad Carlos Diaz was able to provide clear guidance and answer your questions thoroughly. We take pride in making sure our students feel supported and confident throughout the process. We appreciate your trust in 1 Exam Prep and wish you success on your exam journey!
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