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Bartlett Tree Experts was founded in 1907 and is the world's leading scientific tree and shrub care company with offices around the UK. We can help with most any tree, shrub, or insect management issue. Please fill out the form below or call us today for more information.




841 E. Mission Road
San Gabriel, CA 91776

Office Hours

Monday through Friday
8 a.m. – 5 p.m.

Tree Service and Shrub Care in the Pasadena Area

Arborists in our Pasadena office are committed to helping local residents and businesses maintain beautiful, healthy trees and shrubs. Our arborists are experts in diagnosing and treating tree and shrub problems specific to the Pasadena area. Plus, with access to Bartlett’s global resources and advanced scientific research facility, we can provide customers with benefits that just aren’t available from other Pasadena tree services.

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Our San Gabriel office provides tree services such as pruning, tree removal, and fertilisation management for Northeast Los Angeles, San Fernando, Pasadena, Hollywood, Burbank, and the surrounding areas.

We are pleased to offer tree services in the following areas in and around the San Gabriel Valley:

  • Alhambra
  • Altadena
  • Arcadia
  • Azusa
  • Baldwin Park
  • Bradbury
  • Burbank
  • Costa Mesa
  • Covina
  • Diamond Bar
  • Duarte
  • Eagle Rock
  • El Monte
  • Glassell
  • Glassell Park
  • Glendale
  • Glendora
  • Hacienda Heights
  • Hansen Hills
  • Hollywood
  • Huntington Park
  • La Cañada Flintridge
  • La Jolla
  • La Verne
  • Lakewood
  • Lincoln Heights
  • Los Angeles
  • Madison
  • Monrovia
  • Montclair
  • Montebello
  • Monterey Park
  • Montrose
  • Murrieta
  • North Hollywood
  • Ontario
  • Pasadena
  • Pico Rivera
  • Placentia
  • Rancho Cucamonga
  • Rosemead
  • San Fernando
  • San Fernando Valley
  • San Gabriel
  • San Marino
  • Santa Ana
  • Sierra Madre
  • South El Monte
  • South Pasadena
  • Studio City
  • Sunland
  • Sylmar
  • Temple City
  • Toluca Lake
  • Toluca Terrace
  • Tujunga
  • Valley Village
  • Walnut
  • West Covina
  • West Toluca Lake

Pasadena Office Staff

Bryan Locke

Bryan Locke

Local Manager & Arborist Representative
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Dan Thacker

Dan Thacker

Arborist Representative
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Rod Mann

Rod Mann

Arborist Representative
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Richard McLeod

Richard McLeod

Arborist Representative
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Sal Rodriguez

Sal Rodriguez

Local Office Safety Coordinator
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Johanna Arias

Johanna Arias

Administrative Assistant
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Arianna Sierra

Arianna Sierra

Administrative Assistant
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Identifying hazardous tree conditions

When there is a hanging branch or crack in a tree, it's easy to see that a problem exists. However, some issues are more difficult to detect. Simple solutions can make a big difference. Pruning can lessen branch weight and wind resistance. Cables and brace rods can also be effective in helping to limit branch movement and protect trees.

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Arborist Associations

Bartlett Tree Experts is proud to be a member of so many industry associations. Many of our expert arborists have reached the pinnacle of their profession and have been recognized as such. Bartlett Tree Experts has been inspected and accredited based on adherence to industry standards for quality and safety, maintenance of trained, professional staff, and dedication to ethics and quality in business practices.

View a list of the many arborist associations with which Bartlett is associated.

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What Our Customers Are Saying

I have always found Bartlett to be very thorough. They leave my property in perfect condition. Richard McLeod is very knowledgeble and pleasant to deal with. I highly recommend this company for all matters regarding trees.
Dianna G., Los Angeles, CA

Rod Mann walked us around our property and knew every tree, what needed trimming, and explained everything to us. Rod's expertise made us feel comfortable hiring Bartlett.
Patty L., Pasadena, CA

Bryan is our go-to expert. He always steers us in the right direction with his knowledge and expertise.
Susan B., Los Angeles, CA

Rod Mann walked us around our property and knew every tree, what needed trimming, and explained everything to us. Rod's expertise made us feel comfortable hiring Bartlett.
Patty L., Pasadena, CA

Very good service and would use your service again in the future.
Buzz L., Claremont, CA

Ryan is always helpful and friendly. Rod Mann seems to stay up to date on the scheduling, trimming, and treatment of all trees and vegetation on the property. Camellia treatment seems to be helping and the roses have been excellent.
Annie S., Pasadena, CA

Fabulous, efficient, immaculate, and hardworking. Wish I had more trees that they could service.
Cathy M., Los Angeles, CA

Bryan is very professional, prompt, and responsive. He returned a quote in less than two hours after the appointment and kept me posted on the status of the city permit. I have a dying Red Wood tree near my front yard and the city needs an approval to chop it down. I contacted a few places looking for an arborist and got no response. I finally found Bartlett Tree Experts and got an appointment right away. The crew members showed up early and the job was done in less than three hours. I am very glad I found this company.
Karen L., San Marino, CA

They all were courteous and knowledgeable. They worked very efficiently.
Michele M., Los Angeles, CA

I have been working with Dan Thacker for many years. He has helped me transform my Evergreen Pear tree from a perennial fire blight magnet to a beautiful, healthy tree. He has also been wonderful stopping by to check out and advise on my concerns over browning on my Mayten tree and the splitting bark on my Mock Orange tree. He never fails to give great advice and to respond quickly to my communication.
Erin K., Pasadena, CA

Ryan is always helpful and friendly. Rod Mann our consultant, seems to stay up to date on the scheduling of trimming and treatment of all trees and vegetation on the property. Camellia treatment seems to be helping and the roses, this season, have been excellent.
Annie S., Pasadena, CA

Bartlett and Rod Mann are always reliable and very knowledgeable.
Bill S., Pasadena, CA

Having worked with other providers between 2009 and 2016, I can say with 100% certainty that Rod and Danny are the best in the business. These gentlemen are the real deal. They are personally invested in providing excellent client service from start to finish. Since our HOA started working with Rod and Danny in 2016, our trees have not only survived but flourished at a time when many communities have lost countless trees due to drought and disease. In fact, the City of South Pasadena, also known as "Tree City USA", recently cut down four mature California Sycamores that were affected by the Polyphagous Shot Hole Borer. We have thirty one trees that were similarly affected, but Rod Mann knew of an experimental treatment and the only treatment that might save the trees. He recommended we try it, and he was right. These trees are doing very well, as are our other trees thanks to Rod and Danny.
Donna D., Pasadena, CA

I was very satisfied with your knowledge and experience. Thank you for helping us save our beautiful Liquid Amber trees. I have referred you to my neighbor who also has the same tree.
Connie B., Pasadena,CA

Grateful for the assessment on health of trees and making plan to try to save one in jeopardy. I appreciated how quickly we were able to set an appointment.
Elise F., Rosemead, CA

Dan Thacker was great.
Nancy C., Pasadena,CA

Dan Thacker had been my tree guy for over twenty years. He always responds quickly and informative when I have questions. Your tree cutters are the best. I am always amazed at how perfectly shaped my trees are when they are done. And they clean up everything. It pains me to see trees in my neighborhood that have been hacked back by non-professionals with chainsaws.
James D., Pasadena,CA

Richard McLeod is a tremendous representative of Bartlett. He is knowledgeable, personable, businesslike, with perfect follow through and follow up. His crew members were polite, did their jobs thoroughly, and the job site was left clean. We had a family member who was very ill while pruning was done outside his bedroom and he was not bothered at all by noise or interruption. I wish that there were people to whom I could recommend Richard and his service at this moment, perhaps in the future I will be able to do so. In the meantime, I am very grateful for the excellent care and service that has been provided.
Cheryl H., San Gabriel, CA

Isaac and the crew were very efficient and knowledgeable regarding our Avocado trees and their continued good health. We really appreciate their enthusiasm in helping us in the task of keeping our trees healthy.
Victoria I., San Gabriel, CA

We have worked with Dan Thacker, Bartlett Tree, formerly Finch Tree Surgery Service for many years. He has been consistent with his professionalism, customer service, and expertise. My family and I are very happy that he continues to be our arborist representative. The Bartlett crewmembers that recently removed our Italian Cypress trees worked well together as a team, along with the crane operator Hal from Angle Myer Crane Rental. The crew members were knowledgeable regarding the various cutting and safety methods. They demonstrated their skills and applied safety precautions throughout the whole job. In addition, they were courteous and respectful.
Larry H., Altadena, CA

I want to thank Richard Mcleod, Emilio Calvillo, and Jose Gonzalez for a great job removing my trees. The staff was friendly, courteous, and professional. Thank you, in particular, to Richard Mcleod whose expertise, continued support in answering questions, and providing suggestions made the whole experience positive. Thank you again for a job well done.
Lupe V., Glendale, CA

Richard explained everything very well so I knew what was going to happen. He was always available to answer any questions I had. I am very happy with him and all the crew.
Dianna G., Los Angeles, CA

The Representative and the crew members were all professional and did an excellent job. I would highly recommend Bartlett Tree service to work on your trees.
Philip M., Altadena, CA

The men who have worked on our property trimming trees have been very courteous and respectful. They appear to aim to please. Dan Thatcher is quite knowledgeable and communicates well with us, and the staff on site before they start the job. He explains to us why certain trees need to be cut in a certain way with consideration both aesthetically and for the health of the trees. We very recently had our large Oak tree trimmed with emphasis on raising the skirt and cutting branches away from the house. Because of the timing, they were unable to cut more, according to Dan. In August, September, or next October we will have this Oak tree thinned to the degree the city will allow, and will request more radical pruning so as to let more of the front of our house show from the street.
Bill P., Los Angeles, CA

I decided to hire this company for an arborist home service project. They assigned an arborist expert by the name of Isaac Diaz. This company was amazing and Isaac Diaz was very professional and knowledgeable. He explained every step of the process before starting on the project. Isaac was very helpful, honest, friendly, and professional. I plan to be their client for many years to come and I would definitely recommend their services.
George M., Ontario, CA

Superb job. Artistic work. Thank you.
Sandra K., Pasadena, CA

Very professional and when they were done you could not tell they were there.
Alan W., Murrieta, CA

I received the most excellent service and follow-up help from Isaac Ramirez, of what needed to be done to correct the many years of neglect to the trees on my property. I really did appreciate his careful consideration of what I thought and what he could have the crew do to best accomplish the work without harm to the trees. In addition special thanks to Maria Camarena, Admin assistant, for her help on my phone inquiries. The crew did a really fine job of working around the cars that were not movable in the driveway and the other obstacles that were on the property. I want to commend Ryan for the careful pest control work that was done too.
Francis L., Los Angeles, CA

Isaac and the crew were great. Very pleased with the level of professionalism, follow through, and quality of work.
Rachel S., Los Angeles, CA

Rod Mann and his crew did a fantastic job properly trimming several of the Oaks around our house, as well as a small grove of Acacias and a very tall hedge of Podocarpus. During the three day job the crew was very professional and cleaned up debris at the end of each day. I recommend Rod Mann very highly and will plan to use his services in the future.
Richard P., Los Angeles, CA

We have used Bartlett Tree Experts in the past to care for our trees. We were unable to have some service done on a regular basis due to some personal budget cut-backs. We had our front and side trees serviced, including an unruly Mulberry Tree that exploded with leaves and berries this Spring. Dan Thacker and his crew did a great job of taming the tree and the rest of the growth on our property. We contacted them because we were concerned some should be trimmed back a bit further and they came out and took care of it all. It looks beautiful. Using arborists can be pricey but our trees and home value are important to us. Thank you Dan and crew.
Cyndie B., Pasadena, CA

Superb job. Artistic work. Thank you.
Sandra K. , Pasadena, CA

Rod was efficient, flexible, and helped us to navigate the city rules regarding tree removal. The work was done as promised with a minimum of disruption to our Association. I would highly recommend Bartlett for any kind of tree work.
Queenie T. , South Pasadena, CA

Rod is the best. We would not have anyone else touch our OakTree.
Douglas C. , La Cañada Flintridge, CA

Rod was terrific.
Rocco V. , Los Angeles, CA

In 2016 we began a search for a certified arborist to help us manage the trees on our homeowners association property. Our townhome complex was constructed in 1975 and we have 130 mature trees on the property, including pine, oak, sycamore, liquid amber, and eucalyptus trees. Many of these trees are protected by law and require permits to trim or remove. I received a referral to Bartlett and when I met with Rod Mann it was immediately clear that he was the best choice. He was patient, responsive, and able to work within our budget constraints at that time. Rod established a trimming schedule for us that spans all four seasons, something we desperately needed. Prior to working with Rod and Bartlett, the trees were trimmed annually or semi-annually, and selection was determined by whatever trees looked like they should be trimmed according to the tree trimming service available at that time. It was not an optimal process for the trees or the HOA budget. Rod Mann and his crews are so much more, true tree experts. I have watched the crews trimming 60 foot trees and I am in awe of their skill and the care they display for the trees and the surrounding property. I have also witnessed their superior safety practices and realize our prior vendors were not sufficiently knowledgeable on safety or proper trimming techniques. Danny and Emilio are excellent crew supervisors, the crew dives in and they do not waste time. Each person knows his role for the day, and they watch out for each other and work very well together, a true team. Rod Mann and his crews have also responded to several emergency situations on our property (broken, dangling tree limbs) with a shared sense of urgency. I recently discovered that Rod has stopped by a few times to check on our trees when he was in the area, and we are impressed and grateful for his superior level of service and commitment to our HOA and our trees.
Donna D., South Pasadena, CA

I was very impressed with Bartlett Tree Experts, especially Dan Thacker. He was very knowledgeable and knew how to explain things in a way that was easy to understand. From the initial visit to the billing process your services were effortless and simply a pleasurable experience. I am truly looking forward to having Bartlett take care of my trees from now on.
Tamia H. , Sierra Madre, CA

Bryan Locke is one of the most courteous and helpful representatives of a company I have ever met. His concern, insights, and openness to discuss all possible causes of a yard/tree/plant problem make him a pleasure to deal with. His crews are equally courteous and never fail to do a great job that leaves my yard looking improved and undisturbed.
Trudi K., San Gabriel, CA

Dan Thacker has been our arborist since we bought our home, and we could not be happier with him or the services he has provided. He is prompt, courteous, and knowledgeable. We depend on him and Bartlett for the health of our trees. I would highly recommend Bartlett Tree Service to anyone.
Merrily B., Los Angeles, CA

Rod is great, the trees look beautiful, and his crew did a wonderful job!
J.S., Los Angeles

Rod is fantastic and his team is the best!
Cathy M., Los Angeles

We appreciate your good work and especially Dan Thacker's expertise.
Andre M., Los Angeles, CA

Graham was courteous and thorough and even returned to Bartlett to pick up extra equipment needed to brace a young lemon tree that had fallen during a recent storm, although his main purpose for coming had been to spray our olive tree. I wouldn't trust my recently landscaped backyard to any other service. I trust the way you are knowledgeable about trees and plants, and not just guys driving around the neighborhood with a truck and pruning equipment!
Trudi K., Los Angeles, CA

I appreciate Rod Mann's informed but practical answers to my tree questions.
Steve R., South Pasadena, CA

We have always appreciated Dan Thacker's prompt service and expert advice. The tree trimming crews have been excellent as well.
Jim and Cindy W. , Los Angeles, CA

The crew did a terrific job! I watched from poolside at their artistry, their teamwork, and their quick and efficient job of taking off some really heavy stuff. I think the tree is quite happy, and so are we!
Julie R., Alhambra

Everything went very well. Special thanks to Graham, who came later on to treat the Bay Laurels and fertilize.
Jan S., San Gabriel, CA

Dan was gracious to rush over when a tree limb blocked my driveway, this is truly above and beyond in helping a customer in need.
John C., Pasadena, CA

Rod Mann was great as usual. Wouldn't think of working with anyone but him!
Cynthia K. , Pasadena, CA

Rod and the crew did a fantastic job on the Bamboo clean up, It was a lot of hard work.
Denise T. , South Pasadena, CA

Great service, Dan is a great arborist and the team is outstanding!
Bryan C. , Pasadena, CA

Everyone was very friendly and professional and did an excellent job!
Kathleen B., Duarte, CA

We appreciate Rod Mann's honesty, integrity, and knowledge. He tells us when we should trim and when we should not, which we respect.
Alan L., La Cañada Flintridge, CA

As a long-time Finch Tree Service customer, I'm happy to see the tradition of excellent work and customer service being continued.
Yvonne F., Monrovia, CA

Rod Mann is always helpful and explains the work that needs to be done thoroughly. The crew is professional, kind, and cleans up well. It's always a pleasure to have Rod and his crew work on the trees!
Terry V., Long Beach, CA

The crew was very professional and everything looks great!
Jason M., Altadena, CA

I couldn't be happier with the work done at my home. The crew was very professional, cleaned up after themselves beautifully, and the wildflowers under the tree were undamaged (despite all the pruning done over and around them). I loved working with you guys.
Chris B., South Pasadena, CA

Dan Thacker has been my arborist representative for many years. He has always been extremely helpful and easy to work with. I am grateful for the long-standing relationship I have with him.
Marcia H., Pasadena, CA

Rod was particularly helpful in going over the possible tasks with me and explaining my options. Kenneth G., Pasadena, CA

Dan Thacker is top notch and I have trusted him for over a decade. The crew members are always respectful. Jeff B., Monrovia, CA

The crew did a good job, and Daniel is always great to work with. Susan M., Alhambra, CA

Rod Mann and the crews that come with him are top notch. I have a difficult situation with a neighbor, and Rod has come to my aid countless times over the years in protecting my trees. He seems like part of my family. Thank you for helping me protect my trees and peace of mind. Cathy T., Eagle Rock, CA

Same great service that I have gotten from Finch Tree (now Bartlett Tree Experts) over the past 15 or so years. They were supposed to complete the job in two days, but worked so fast (and so well!) that they were able to complete it in just one. Thanks for a job well done! Marilyn C., Pasadena, CA

Dan Thacker has always been professional, prompt, thorough and more than accommodating to us throughout the many years that we have dealt with him through Finch Tree Service and now Bartlett Tree Experts. Maryanne O., Pasadena, CA

We love the outcome of the pruned tree. Thank you so very much for always wonderful work. Rod and his crew are very good to work with. Exceptionally good. Barbara M., Glendale, CA

These guys are great! Rod is always informative and patient with our questions. His guys are efficient and professional. They actually left the work site cleaner than when they got here! We will use them again. Terry L., Pasadena, CA

Daniel Goyette is my go-to guy! He tells you exactly what is going to get done and why and works with you regarding what you want long-term from your trees. The guys who work on the trees themselves are professional, courteous to a fault, efficient and quick, and anything that I had a question or concern over, they addressed on the spot. For those of us that have large, established trees that we care to maintain, I would never use anyone else. Bonnie S., Sierra Madre, CA

Dan Thacker came out to do the estimate and manage the project. He is very knowledgeable and patient. He knows his stuff. The workers are also great. The guys barely even used a chainsaw and were meticulous in bringing my overgrown trees into shape. Honestly, they aren't that much higher priced than other quotes and your trees will look well-groomed when they are done. Chris H., Altadena, CA

Emergency Tree Service

If you require emergency tree service, call 626-286-2716 anytime.


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Certificate of Insurance

View our certificate of liability insurance for proof of our insurance coverage.

By Appointment to Her Majesty the Queen - Tree Surgeons - F.A. Bartlett Tree Experts Co. LTD.

Royal Warrant

Royal warrants of appointment have been issued for centuries to those who supply goods or services to a royal court or certain royal personages. In the United Kingdom, grants are currently made by three members of the British Royal Family to companies or tradesmen who supply goods and services to individuals in the family. Bartlett is proud to hold the Tree Surgeons warrant for Her Majesty the Queen.

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