Milford, PA
Member since 2024
DH Seminars
Cleaning/Restoration/Water Damage
Doug Heiferman has traveled the United States for over 20 years teaching IICRC classes in textile maintenance & restoration specifically for carpet, upholstery, wood, leather, oriental rugs and hard surface. He is one of the most sought after instructors in the textile maintenance & restoration industry. His teaching style is unparalleled. He knows cleaning from the scientific and the practical perspective and has a unique ability to relay information to students of all skill and experience levels. Doug is well-known throughout the cleaning industry. Training courses in addition to consulting services to help his clients build highly successful companies is his passion. Private IICRC in person and online training offered. Certification courses in carpet, upholstery and odor control. Specialized training at your facility in person or on line in the following. Water Damage Restoration, Oriental rug washing in addition to hard surface maintenance. Doug travels the U.S. helping his clients build highly successful companies. He is one of the most sought after business consultants in the cleaning and restoration industries.
| Location/Date(s) | Course | |
|---|---|---|
| Webinar | IICRC Carpet Cleaning Technician (CCT) | View |
| Webinar | IICRC Upholstery Fabric Cleaning Technician (UFT) | View |
| Webinar | IICRC Carpet Cleaning Technician (CCT) | View |
| Webinar | IICRC Upholstery Fabric Cleaning Technician (UFT) | View |
Doug Heiferman has traveled the United States for over 20 years teaching IICRC classes in textile maintenance & restoration specifically for carpet, upholstery, wood, leather, oriental rugs and hard surface. He is one of the most sought after instructors in the textile maintenance & restoration industry. His teaching style is unparalleled. He knows cleaning from the scientific and the practical perspective and has a unique ability to relay information to students of all skill and experience levels.
Doug is well-known throughout the cleaning industry. Training courses in addition to consulting services to help his clients build highly successful companies is his passion. Private IICRC in person and online training offered. Certification courses in carpet, upholstery and odor control. Specialized training at your facility in person or on line in the following. Water Damage Restoration, Oriental rug washing in addition to hard surface maintenance. Doug travels the U.S. helping his clients build highly successful companies. He is one of the most sought after business consultants in the cleaning and restoration industries.
100% Verified Reviews
Below are the most recent student reviews for previous DH Seminars Courses. All reviews are from people who registered for and attended the course.
Below are the most recent student reviews for previous DH Seminars Courses. All reviews are from people who registered for and attended the course.
(
4.9
out of 5 stars -
68
student reviews)
Christopher S.
attended on October 16, 2026
Love how the instructor interacted with the class Jay P.
attended on October 16, 2026
has been the best instructor I’ve had so far on my journey to become master certified in textile cleaning. He brings real world examples into the curriculum, he is also very knowledgeable in his field. I feel as though if he’s in my corner there’s not a certification I couldn’t obtain. Seth H.
attended on October 16, 2026
I liked doug he cares about what he teaches. and I truly feel like he is there for me if i need any help and he went out of his way to thoroughly answer the questions I had. and I feel very confident he has taught me all i need to pass my test Johnny R.
attended on October 16, 2026
Amazing instructors Benjamin W.
attended on September 11, 2026
Enjoyed the class. Doug was very personable and informative. You could tell he was skilled, knowledgeable, and passionate about the subject. Sara P.
attended on August 27, 2026
Doug was an excellent instructor who seemed very knowledgeable on the topic. He took the time to explain the reasoning behind specific processes and how they work. He also took time to explain why other methods would not work. Earl B.
attended on August 21, 2026
Overall good class. Instructor very knowledgeable Tina P.
attended on July 23, 2026
Overall, Doug made sure we knew all we needed to know to pass the exam the first time. He was patient and willing to help with any questions. He didn't come across like anyone was dumb for not getting a review question wrong. Lynnette H.
attended on July 3, 2026
Doug was the best instructor. Very knowledgeable and hands on. I was able to take my exam immediately following the class and complete it in 20 minutes and excelled. Given the fact that I have no prior experience, I give all of the credit to Doug. Stephanie P.
attended on July 3, 2026
I highly recommend Doug as an IICRC instructor. He has a great way of explaining the material and keeps the class engaging by using real-world stories and examples that make the concepts much easier to understand and remember. Instead of just teaching from the book, he connects the information to situations you might actually encounter in the field, which made a huge difference for me.
Doug was patient, knowledgeable, and encouraged questions throughout the class. Even when the material became technical, he presented it in a way that kept everyone involved and learning.
I enjoyed the class so much that I've already signed up to take his UFT course. If you're looking for an instructor who is experienced, approachable, and genuinely wants his students to succeed, I highly recommend Doug. Seth N.
attended on July 3, 2026
Doug was great and the class was as well. Easy with Zach Academy to enroll. Emmanuel L.
attended on June 12, 2026
Great information, teaches his students with a passion, all questions answered Patrick B.
attended on June 12, 2026
It is easy learning from a knowledgeable and passionate teacher! Benjamin P.
attended on April 10, 2026
Great instructor Kyle M.
attended on March 6, 2026
Instructor was very knowledgeable and the made the class a good experience Brian King R.
attended on February 20, 2026
Thus course was great. Doug is a great instructor and thorough. Being able to take the class on line was so convenient and cost efficient. I appreciate this whole experience. Hasan A.
attended on January 29, 2026
My instructor was very good. I learned a lot with this class Ashton G.
attended on December 17, 2025
Great teacher, very knowledgeable and not boring to listen to. Jonathan G.
attended on December 17, 2025
Doug was a Great Instructor. very energetic and interactive. Very knowledgeable on the subject. Ahmed J.
attended on December 12, 2025
Instructor Doug did an outstanding job teaching the Upholstery Fabric Technician (UFT) class. He is very knowledgeable, patient, and explains the material in a clear and easy-to-understand way. Thank you, Doug, for your professionalism, dedication, and support throughout the course. John L.
attended on December 12, 2025
Enjoyable class and very informative. John F.
attended on December 5, 2025
This was the best class I've been in through IICRC! Doug put on a show, enjoyed the participants and Instructor. Very Entertaining! had fun and gain knowledge. Really awesome experience. Jeff M.
attended on December 5, 2025
Very knowledgeable Judson A.
attended on December 5, 2025
Mr. Doug was incredibly informative and knowledgeable. His class was entertaining but professional and I know that every single student managed to walk away with a more intimate carpet Cleaning knowledge than they had before. I highly recommend him and will be looking out for future classes by him. Hansford B.
attended on December 5, 2025
A very good teacher keep you on your toes And keep your attention to the class Howard E.
attended on December 5, 2025
I am a person my mind somewhere else but in this class keep me focus I learn a lot more one of the best teacher he work with you as well Mike M.
attended on November 14, 2025
Knowledgeable, to the point instructor. Covered all important topics in the manual and hands on. Austin T.
attended on November 14, 2025
Knows what he’s taking about. Very personable and you can tell he’ll do whatever it takes to get you the knowledge you need. Adam T.
attended on November 14, 2025
I really enjoyed the course, Doug has a very energetic teaching style and genuinely seems to want youto do well in your career. Jon G.
attended on November 7, 2025
Doug was great! Very knowledgeable and passionate about the content he teaches! He made the course fun and easy to learn. I highly recommend taking any of his courses. Max P.
attended on October 30, 2025
Great class very educational. Doug was awesome. Chris O.
attended on October 30, 2025
Doug's instruction was wonderful and inciteful. He provided great incite for how the information applies to real world situations, which was invaluable to me and helped me remember the information needed for the exam. Travis C.
attended on October 30, 2025
Doug did an amazing job going through the process of professional carpet cleaning. Great real world examples and techniques from his years of experience. Ford B.
attended on October 30, 2025
Doug is one of the best instructors I’ve ever had. He really knows how to keep the topic interesting and exciting. He had a great attitude and was happy to be teaching us. He answered all my questions before I could even ask them. I will definitely be scheduling another class with Doug in the future. Isaiah S.
attended on October 30, 2025
Mr. Heiferman was the best! He explained everything in detail,He has the brain of an elephant, he never forgets a thing , And made sure everyone in the class understood the lesson before he moved to the next subject. That takes extreme patience. Zack F.
attended on October 8, 2025
Doug was a wonderful teacher who recalls valuable stories that tie in directly to the material of the class. A master of OCT. Dariusz W.
attended on October 8, 2025
I am very pleased with the training. I recommend it to everyone! Sean A.
attended on October 3, 2025
A lot of knowledge! Troy H.
attended on October 3, 2025
The instructor was very knowledgeable and had excellent working knowledge of the material Hector S.
attended on October 3, 2025
Doug was great for us, very motivated, enthusiastic and passionate about helping the students do their best as technicians and successful owner operators. I am very thankful for this class. Joshua S.
attended on September 19, 2025
Doug was very knowledgeable and professional with great insights into the industry. Rylan C.
attended on September 12, 2025
Doug is a great teacher. Megan S.
attended on July 25, 2025
2nd course I took with DH - Doug is the best! Very interactive class and I felt extremely prepared and confident to take the exam, and to use my knowledge in the field. Highly recommend DH and instructor Doug! Luis O.
attended on July 25, 2025
Doug was great and highly interactive. Threw in a lot of gems to help you be successful in the industry. Andrew A.
attended on July 11, 2025
This instructor really knows his stuff Dan S.
attended on July 11, 2025
Class was great. the instructor really knew his stuff and shared a lot of valuable insights from his time in the industry. I felt 100% prepared for the exam when the class ended. Megan S.
attended on June 26, 2025
Doug was awesome! Such great knowledge plus lots of fun and interesting stories and anecdotes. Interactive (even though it was a virtual class), educational, and engaging! So great that I signed up for another class with this instructor. Thanks DH Seminars! Justin F.
attended on June 20, 2025
The class was great. The teacher, Doug, made it even better. His knowledge, along with his fun way of teaching made the class enjoyable. I highly recommend this course and even more so I recommend Doug. Gevorg D.
attended on June 20, 2025
Doug was very professional and informative. One of the best instructors I had in certification classes. Super motivational Abraham C.
attended on April 17, 2025
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