Michael DeGregorio, Arborist Representative at Bartlett Tree Experts, works out of our Gaithersburg, MD office.

More about Michael DeGregorio

Mike grew up in the rolling hills of northcentral Pennsylvania where he developed a strong passion for trees and the outdoors. He attended college at Penn State, graduating in 2011 with a B.S. in forest science. Mike's desire to work with people prompted him to focus on caring for individual properties rather than forest landscapes. This led to him accepting a job with Bartlett in 2012. He began his career as an arborist trainee and quickly progressed to arborist climber, crew leader, and plant health care technician. Mike recently moved into the position of Arborist Representative where he can provide his clients with the highest quality service possible in the tree care industry.

Mike is an ISA Certified Arborist, Licensed Maryland Tree Expert, TCIA Certified Treecare Safety Professional, and carries both Maryland and District of Columbia pesticide applicators licenses.

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What Our Customers Are Saying About Michael DeGregorio

It was excellent from beginning to the end. Staff were knowledgeable, courteous, friendly, and professional. It does not get better than that. Well done and keep up the Good work.
Rick J., Potomac, MD

We were so impressed with the professionalism and courtesy of your staff. Your team removed a large tree from our front yard border safely and efficiently. They were pleasant and professional with us and our neighbors, and left the area spotlessly clean. Thank you for a job perfectly done.
Chris R., Cabin John, MD

I have had nothing but the best experience in working with your staff.
Vicki C., Rockville, MD

Bartlett staff are always communicative, from knocking on the door to let us know that they are there to do a service, to responding to emails about questions relating to our trees.
Amy K., Potomac, MD

I enjoy working with Michael DeGregorio.
Michael W., Potomac, MD

Mike D. is great, your best brand ambassador.
Bert B., Potomac, MD

I have found everyone at Bartlett to be very pleasant to deal with. Mike DeGregorio, my arborist, was knowledgeable and helpful. The crew who trimmed and planted did a good job and cleaned up well after themselves. In general, I would be happy to use Bartlett again and would recommend them to others.
Lauri F., Potomac, MD

Very pleased all around.
Ellie S., Potomac, MD

Michael DeGregorio is amazing, very knowledgeable, helpful, and responsive.
Olga P., Cabin John, MD

Michael was great, crew was on time, and professional. Yard was cleaned afterwards we look forward to working with you all again.
Renee B., Potomac, MD

My Bartlett Arborist Representative is always responsive, attentive, reasonable with recommendations and advice. He is a trusted advisor and I am lucky to have him caring for my trees.
David L., Potomac, MD

Great job cutting the big Pine tree. Always satisfied.
John C., Potomac, MD

We found Mike to be very knowledgeable and proactive in his approach. We respect his advice. We feel we are in good hands in treating our various trees and bushes.
Susan G., Potomac, MD

Both our representative and the crew members are always helpful and do a great job. We have recommended Bartlett to several friends.
Maggie S., Potomac, MD

Michael DeGregorio's crew did a very nice job cleaning up the fallen tree branch and leaving the yard looking like the branch had never fallen. They were very professional and completed the work quickly.
Vicki C., Rockville, MD

Michael is great.
Esther S., Gaithersburg, MD

Instructions of Mr. DeGregorio were specific and executed well by crew members. Also, the chief crew member asked if I was satisfied with the work along the way.
Robert D., Rockville, MD

Our main contact was Michael who was most courteous and helpful with the planning.
John T., Potomac, MD

I appreciate Mr DiGregorio’s professionalism, and I look forward to working with him again this year when our Azaleas have finished blooming and are ready for reduction.
Martha L., Potomac, MD

Everyone was efficient, knowledgeable, friendly, and helpful. I was not able to see the work in progress, but the results are good and the yard was left neat and tidy. Given how cold the weather was when the work was done, I appreciate that nothing was skimped on in completing the job.
Ann S., Potomac, MD

Mike DeGregorio and all the field guys are top shelf. We have had nothing but great experiences with the gentleman who does the chemical treatments and the folks who have done tree trimming and clean up. Mike is a huge asset with his technical knowledge and offers great advice. Thanks for a great year Bartlett, we really appreciate the great service. We will have you back again this spring.
Jim C., Potomac, MD

All of the Bartlett staff that I have had contact with have been professional, extremely responsive, and polite.
Priscilla L., Potomac, MD

Great Job. We appreciate your good work.
Margaret P., Potomac, MD

Mike and his crew are really excellent and are always a pleasure to deal with. Thank you.
Jeff D., Potomac, MD

The Bartlett representative and Hector's crew were all great, very friendly, and courteous, expert with their knowledge of what needed to be done, and getting it done. I am hiring them again for additional tree work.
Paul Y., Potomac, MD

My arborist always goes above and beyond the norm. I am generally not in contact with the technician or anyone else. However, I feel certain that anyone who works with or for Mike also goes above the norm. I am satisfied with them.
Priscilla L., Potomac, MD

So far wonderful and responsive.
Diana F., Rockville, MD

Every time I interact with someone from your company, I am impressed by how helpful and knowledgeable everyone is. Michael is always extremely patient answering questions and thorough in the way he assesses the trees. Your crew was extremely efficient also, and they got the job done without any issues. The area was spotless when they left and they were extremely nice snd pleasant. Thank you for a job well done.
Margaret B., Potomac, MD

Michael keeps in touch if problems are developing, and is responsive to our questions. He takes care of matters in a timely matter. Would recommend. Good Service.
Ronald S., Potomac, MD

Great Work. Thank you.
Richard L., Potomac, MD

Lots of care went into doing what was right for the tree. Not a cookie cutter approach.
Sheryl E., Potomac, MD

Mike de G is best ever. He is usually slammed but always finds time for me when in Potomac, MD. We are mutual good friends of the money and have links to one another there. Mike is bright, intelligent, and moreover communicative no concerns on my property.
Judy M., Potomac, MD

Michael is professional and enjoyable to work with. The original job of removing the fallen tree and hauling was done timely and thoroughly.
Jeff K., Potomac, MD

They did a great job cleaning up. Very professional, they did what they said they would do.
Janet G., Potomac, MD

Mike is very nice and good to work with, very responsive to questions.
Lionel V., Potomac, MD

Everyone was very professional. I was impressed with the crew and the Arborist. I would recommend Bartlett to everyone.
Shirley W., Potomac, MD

Tony and his crew performed as expected . I would use Bartlett in the future.
Michael A., Potomac, MD

Mike and his team are terrific.
Randy M., Potomac, MD

Very knowledgeable of the problem and proficient at removing the tree.
Margaret J., Potomac, MD

Michael was great to deal with and very helpful in getting everything scheduled. The guys that came out to work on the trees were very good and very professional. Site was left clean. Thanks so much.
John G., Potomac, MD

Michael DeGregorio was amazing to work with and quite possibly the most knowledgeable contractor I have ever met. His almost encyclopedic knowledge of plants and trees was truly impressive. The overall process was so easy and I immediately knew we were in good hands. The work itself was impeccable and the work site was left in pristine condition. Would absolutely recommend.
Stella M., Potomac, MD

I sought out two other quotes and, as always, Bartlett was by far the most knowledgeable and trustworthy representative. I trust your advice and your work.
Laurie G., Potomac, MD

We are impressed with the Arborist's knowledge and the speed of the service by the Bartlett staff, at his direction.
Lawrence F., Potomac, MD

Mike has been great to deal with. He is responsive, knowledgeable, and follows through on commitments.
Nancy K., Potomac, MD

It was certainly a pleasure to meet Arborist, Mike DeGregorio. He is affable, courteous, and highly knowledgeable. I trust him with my trees. The only direct contact I have had with other crew members was when one knocked on my door to tell me he would just treated my Dogwood, and that I should call to have someone come back and redo it if it should rain hard within the next few hours. I did not need to call. Shortly after he left, it began to come down, and I saw the Bartlett truck reappear out in front of my house. Otherwise, the Bartlett crew have come and gone silently. Based on my experience so far, I am confident they have done the job right (and will continue to do so).
Howard F., Potomac, MD

Michael DeGregorio and Chris are great. They both do a wonderful job, work hard are courteous and very knowledgeable. A real pleasure to work with.
Rick J., Potomac, MD

Have used your company in the past and will continue. Why? Honesty and Excellent customer service. Will refer to friends who might not know about the company.
Betty Ll, Potomac, MD

Arborist was knowledgeable. Crew was great. In and out in less than an hour and very thorough.
Amy M., Potomac, MD

Excellent knowledgeable assistance. Very professional, friendly, and helpful. Love the Bartlett staff and service.
Charise P., Potomac, MD

Mike is always responsive.
Priscilla L., Potomac, MD

Mike DeGregorio was very helpful in looking over several tree issues on our properety and suggesting appropriate remedial measures.
George B., Potomac, MD

Mike DeGregorio struck me as very knowledgeable in his field. He is very thoughtful and courteous in his interactions with me.
Deborah F., Potomac, MD

Mike is always very helpful. It is a pleasure to do business with him. The Dogwoods are looking much better since the treatment.
Janet M., Potomac, MD

Everyone was great. Mike Gregario was extremely knowledgeable, professional, and friendly. He scheduled the work to be done quickly and communicated throughout the process. The crew was extremely polite, listened to our requests, and acted upon them. They left all of the work sites completely clean and looking as if no work had even been done in the area. Many thanks.
Margaret P., Potomac, MD

I have communicated with Mike DeGregorio on several occasions, regarding our trees, and options for treatments, and removal. Mike is a great guy, and it has been a pleasure becoming acquainted with him and Bartlett. Thank you Bartlett, for your excellence in service.
Reed G., Potomac, MD

Everyone was great and they did a wonderful job. Thank you.
Susan O., Potomac, MD

Really helped our trees and bushes fend off various bugs and diseases. The trees look great.
Sharon C., Potomac, MD

Mike DeGregorio was very professional and easy to work with.
Randy M., Potomac, MD

Michael is always responsive and knowledgeable. It is a real pleasure to work with him.
Rick J., Potomac, MD

Mike DeGregorio is great. He was very quick getting back to me after I called with a problem I saw on one of our trees. He has very thorough knowledge of trees. He made reasonable recommendations for treatment and care. We entrust the care and health of our trees to Bartlett.
Carol F., Potomac, MD

Everything from first meeting to job completion was way above expectations and miles beyond what other companies I have worked with have done. Informative, friendly, conscientious, highly skilled crew, superb use of equipment, full use of safety equipment, left work site cleaner than before the job started which is unbelievable, the trucks and equipment were spotlessly clean and impressive. I can not say enough. Happy to speak on your behalf to anyone considering working with you and seeking testimonials.
Ken S., Potomac, MD

Mike is great, knowledgeable, responsive, and very capable. I have referred Bartlett to others who I believed would benefit from Mike’s expertise.
Bert B., Potomac, MD

Mike DeGregorio was excellent, very professional, clear in his communications, and provided practical advice. The gentleman who performed the service also did an excellent job.
Gayle S., Potomac, MD

Good job and good clean up.
Norman S., Potomac, MD

I liked Michael, he was good guy, and had a good understanding of his product line. I also especially liked that he was on time.
Lynn B., Potomac, MD

Mike DeGregorio is a model of professionalism. He is extremely knowledgeable and very easy to work with.
Priscilla L., Potomac, MD

I am not sure about the names but they came to the door to let me know they would be pruning our trees. They were very courteous and efficient. They listened to my requests. The grounds were clear of branches and very neat.
Ambar K., Gaithersburg, MD

Very professional, courteous, knowledgeable, and friendly. Respectful of my potential need to use my car, as they had to block the driveway. Kept work area clean.
John V., Potomac, MD

Prompt, knowledgeable, professional, and easy to communicate with. Would definitely recommend.
Margaret S., Potomac, MD

Just can not say enough good things about MIchael and the skilled technicians at Bartlett. They go out of their way to discuss and explain everything, are always on time, very responsive, and do a very professional job each and every time they are here to take care of our trees.
Rick J., Potomac, MD

Mike DeGregorio was a pleasure to work with. The property is a large one with a lot of tree issues. We asked him to stick to just the urgent issues, and he did just that. We so appreciate the great work.
Ana H., Potomac, MD

Mike DeGregorio is the best. Always available by phone and will quickly come by to look at whatever I am calling about. He is knowledgeable and attentive and I would recommend him and Bartlett to all my friends.
Nancy A., Potomac, MD

Michael DeGregorio is very knowledgeable, helpful, and honest. Job was well done and on time. Very professionally done.
Doris M., Potomac, MD

Very responsive, often will come by right after calling to look at a problem with one of our trees. Treatment crews always leave a door hanger saying they have been here for one of our treatments. Not the cheapest but they saved several trees and help maintain things. We invested a lot on trees and landscaping so want to protect that investment as best we can with feeding the trees properly as well as treating them for pests and diseases. Also gave advice on drainage issues. With so much rain last two years, some trees actually are drowning and doing what we can to fix drainage issues as advised has helped.
Sharon C., Potomac, MD

I have used a lot of tree services and Bartlett is the best.
Nelson F., Potomac, MD

Michael DeGregorio is a real professional and a nice guy. He has teamed with us to try to save our Crabapple tree. It is an all out effort and due to his expertise the tree is getting better, but it is going to take a while. He has gone the extra mile for us and it is greatly appreciated.
Rick J., Potomac, MD

Mike, our arborist, is very responsive, knowledgeable, and we like working with him.
Rick W., Potomac, MD

Very knowledgeable and friendly. Work was done timely and professionally. Was a pleasure working with Mike and his team.
Tony H., Potomac, MD

Everyone I talked to was helpful and professional. I really appreciated Mike's assistance.
Joe S., Potomac, MD

The staff was very responsive and provided meaningful information and assistance.
David H., Potomac, MD

Very prompt reply to initial inquiry and immediate service to remove tree that was leaning dangerously. I would definitely use Bartlett again and will recommend to others.
Carol F., Potomac, MD

I was very pleased with your office staff for scheduling very quickly an on-site inspection by your assigned Arborist. I was 100% satisfied with the recommendations made by Mike and the plan he set up for my four trees. The planned work started promptly, as scheduled, and was done by two very efficient and courteous crews. Thank you very much for your excellent work.
Roberto A., Rockville, MD

Mike and the team did a beautiful job pruning and balancing the shape of our Japanese Maple.
June M., Potomac, MD

Great staff who hopefully provided the solution to serious plant infestation and needed nutrients. Mr. DeGregorio was knowledgeable and helpful.
Judy K., Potomac, MD

Mike DeGregorio is very responsive, knowledgeable, and a pleasure to deal with. The crews do excellent work, in particular Elvan, who is very patient. Our new pest control person, Jessica, is also very pleasant and responsive to our needs. Do not change a thing.
Nancy H., Potomac, MD

Mike was very prompt in stopping by our house to take a look at our Maple Tree, and followed up very quickly with the removal. He also provided guidance on buying a replacement tree. Very nice and helpful.
Nicole Z., Potomac, MD

We have had the pleasure of working with Bartlett since the late 90's at our current address and have always found them to be thoroughly professional and most solicitous of our needs. Michael is the fourth representative we have known over these past twenty years and he has upheld the high level of competence we have come to know and expect from Bartlett.
Greta H., Potomac, MD

Mike DeGregorio responded so fast to my phone call and helped us when our driveway was blocked by a tree.
Amelie T., Potomac, MD

Mike is amazing. Usually comes to inspect damage the same day and tree removal is within a few days. He is a pleasure.
Carol Y., Potomac, MD

Elvin is great, a very talented and patient tree trimmer. We think the world of Mike, knowledgeable, responsive, reliable, and an all-around nice guy.
Nancy H., Potomac, MD

Michael DeGregorio was terrific. Not only knowledgeable but very patient with the many questions from this novice. I feel I have a friend at Bartlett.
Mary Lou D., Potomac, MD

I always enjoy working with Mike DeGregorio. Very knowledgeable and helpful.
Frank L., Potomac, MD

Great team to work with. I fired my previous tree people for poor work, Mike and Gilberto do excellent work at fair prices.
Irv E., Potomac, MD

Mike seemed very knowledgeable. Look forward to working with him.
Carol J., Potomac, MD

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