I would never use this company again! we hired their services about three years ago to conduct a study and issue a report. With the delays of the city over the past year, the city would not accept the "aged" report and asked for a new one. When we called James and asked him to revisit the site and update the report, he claimed that it would cost about the same as the original report. Alt nothing has changed at the property, while waiting for permits from the city, James said it would take even longer to issue a report as he would have to explain any changes from the first report (although the city refused the original report and NOTHING HAS CHANGED ON THE PROPERTY) We decided to reach out to other companies for a competitive price and obtained a price for a totally new report nearly 65% of-this company's price. Now remember, there is no issue of quality of the report as both companies just issue a report on the trees on s and there is no "good" or "bad" repor and hardly any justification for the inflated price and same price for updating the report. Anyway, the conversation with James was far from "giving a dam" about a customer; we paid him over $3k for the report and will now have to pay a little over $2k for a brand new one. Either way, I would never use their services again and suggest that you do the same. read more

I have a tree in my backyard that we are finding out is as important to us as a family member so I've been freaking out about how to restore it's health. James picked up the phone right away and offered very good advice on what I should be thinking about and pointed us to several good resources. He seems extremely knowledgeable and passionate about his work. read more

We hired James to do a risk assessment of a couple large trees near our property. He explained his observations in detail and spent a lot of time answering all my questions. He clearly has a great deal of expertise in arboriculture and a passion for his work. James even spent a little extra time with us to share his thoughts on some other plantings on our property that weren't looking healthy. I find myself a little more knowledgeable about plants and trees after spending time talking with James. It's refreshing to find people that both know their stuff and deal with integrity. Highly recommended! read more

James Komen is very knowledgeable and friendly. He spent a great amount of time to provide us a lot of information to calm us down for our oak disease issue. We will definitely find a way to work with him in the near future. read more

Wow when I called he offered info about other free services available and was upfront about being higher end of pricing. Excellent customer service and business practices. We will definitely be calling him back if we decide we need more help. read more

James is a treasure trove of tree information. With a few questions over the phone, he was able to diagnose the sticky, sappy stuff our Chinese elms are coating our cars and yard with and then explained how trauma is keeping our avocado tree from flowering. I highly recommend giving him a call if you have tree problems. read more

Look no further, you found the best. I came to James to ask his opinion on a tree speciesism that me and my wife could not find on our own. He took the time to research and answer our questions and did not want us to pay him for his time. People like this are hard to find. For these reasons James I decided to give five stars. read more

I called James for an assessment of a sick tree we have in our yard. He offered to look at some pictures and then talk to me at no cost. He came at the question from a point of view I hadn't considered. He was quite helpful. I much appreciate his interest in the subject and willingness to help. from me. I would definitely recommend his services. Thank you. read more

They treated my Italian Cypress Trees and knew exactly what was wrong with them. They were professional, kind and very patient with me. They were responsive and explained everything in detail. I would definitely use them for all of my future tree needs!! read more

Fabulous customer service! He suggested places for us to call for help and information, since it is quite expensive for him to come out. If the other options don't solve our problem, we will definitely be calling him to come out and evaluate our trees! This is a "classy" organization! read more

I found the arborist to be very helpful. He provided me with all the critical information I needed right away. I fell much better about the health of my trees after his expert advice. When you want the right advice seek an arborist only business like this one not a tree trimming business. read more

Class One Arboriculture - Tree Services Near Me

James does great work. Quick, professional, and thorough. I brought him in to generate a Tree Report that was required by the city of Los Angeles. He did great work, when he said he would do it, at the cost he said he would do it for. I only wish the rest of my team was as efficient... Highly recommended... read more

This review is for James. I was searching for a true Arborist to come to my house and help me identify the reason the peaches on my fruit salad tree did not survive but the apricots and plums were perfectly fine. James quickly told me he could come and take my money, but I could save a lot of money by reaching out to my city arborist for free. We discussed what a shame it is, that the public is not aware of this free resource. James advised me to reach out to American Society of Consulting Arborist and they can help me for free as well, and a third free resource through Cal State Davis's Agriculture Program. Thank You James for your honesty and saving me time and lots of money as an Arborist is roughly $1000 an hour for a site visit and diagnosis. I was willing to pay this as we really enjoy this tree that gives 3 different fruits in one, but because of James I can use that money to buy a couple more Tesla shares. Lol. I recommend this business for honesty and the time he took to talk with me and didn't take a penny from me. Thank You. read more

We had to do a tree impact report for our city, and he did an awesome job. He was very quick to respond to phone calls, text messages and the turn around time was very reasonable. More importantly, the actual report was done on time. The city public works depart commented that his report was exceptional and one of the best he's seen! I strongly recommend him for any reports needed by the city or any other tree concerns you might have!! read more

My gardner had set he thought my lemon tree might have a fungus at the base of the tree trunk and some branches. James had me take pictures, evaluated the details on the bark, and told me it is a topical issue that does not need action, only to pull back the turf from the base. His response was fast and did not charge. When I have another issue, James is my man. Thank you. read more

Class One Arboriculture - Tree Services Near Me

We were looking to have an arborist come check out our property. We left a message and James called us back. He was very knowable and very gracious with his time over the phone. Would highly recommend speaking with him regarding your tree needs. read more

James was incredibly helpful. i sent out a request through yelp, he got back to me immediately and answered questions through text. he gave me great advice over the phone about things I could do to help out three citrus trees that weren't doing so well. I decided I wanted him to come look at the rest of the trees. he came by and taught me so much in the hour about tree health and things I should do now vs. in the future to maintain the overall health of my trees. The entire time he would be perfectly honest with me about which things I should pay to have a certified arborist do, vs what I could just get a general tree trimmer to do for me. He doesn't try to upsell you on things you don't need. Really great guy, gives actionable advice in an easy step-by-step format and cares a lot about what he does. i'll be using the company to come back and take care of some pruning in the future. Edit: a couple months later, check out some before and after shots! I'm so pleased with the results :) read more

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James is a legitimate Arborist with a deep knowledge of trees and a passion for ensuring they are well understood and protected. He maximizes the value offered during his consultation and has a keen eye for all the different factors you might consider for your situation. I'd strongly recommend his services. read more

I reached out to James about pruning a tree. He is a consulting arborist, and doesn't offer this service, but he took the time to advise me one how I might find the right person, and even recommended a couple people. If I ever have the need for his service, I'll surely reach back out. read more

James was referred to us by another very professional arborist (The Swedish Arborist in Upland). We are putting a pool in the yard and wanted to make sure we had the best info we could get on whether the pool would adversely impact our coral tree, which we LOVE. James was incredibly fast in responding to us, displayed in-depth expertise about a great many trees (including the coral tree), and practical best of all. While he couldn't guarantee our tree's long term health, he gave us ideas on how we could increase the odds of success. I only wish all service providers could deliver this type of customer service and professionalism. I would recommend him to anyone in a heart beat. We'll also be asking him to come out in a few months to evaluate other trees. Don't hesitate... if you have a question about a tree you even remotely care about, CALL HIM! read more

I was trying to find someone to prune a huge Chinese Elm that hadn't been pruned in 15 years just lost a huge limb. I know nothing about tree trimming and did not feel equipt to hire the correct person at the right price. James took the time to refer me to a couple of tree trimming services. He also pointed me to some less expensive resources in case I thought I needed a consultant. I am very appreciative to him for taking the time to answer my questions and would recommend him without question. read more

James is professional and responsive. I can't thank him enough for his thoroughness in helping me take care of the mature tree on my property and really making sure I understand the maintenance and needs of this tree species. Reach out to him if you want someone extremely knowledgeable and clear! read more

James is very knowledgeable and most importantly willing to take his time and discuss my problem w a tree even when he knows he will not get hired for he job. I've had an issue with root rut and contacted him .. he told me to send him pictures and has since called me back twice and each time spend a considerable amount of time explaining to me his point of view on how to handle the issues. I'm saddened that it appears like there is nothing I can do to help that tree but I really appreciated James and his willingness to help! read more

James is very knowledgeable and professional. He was generous with his time in giving me the information I needed to decide on who I need to hire (a consultant or an arborist to work on the trees). He also gave me recommendations for the arborists as well as other less expensive consultants. (How cool is that?) read more

James is knowledgeable, clear and a kind man. He gave me guidance on the phone even though I didn't engage his services, and provided cheaper routes to go first before needing to engage him. His knowledge, explanations and character were top notch. Thank you, James. read more

James was incredible! I have a black pine tree in my front yard that is struggling due to the drought I am conscientious about doing my part for the water crisis and I decreased the watering causing stress on my black pine tree James did a consult for me over the phone he requested photos and with the photos he was able to direct me on how to save my tree and simultaneously be water conservative I have more trees in my yard and I will be planning for James to walk with me on my property Within the next two weeks I highly recommend first nature lovers and property owners to consult with James and make a plan for water conservation and nature maintenance. read more

Although it turned out his services would not be applicable to my situation, James took the time to talk to me on the phone about what I WOULD need. He was very informative and patient in answering the many questions I had. When the time ever comes where I or anyone I know needs help with trees, James will be the first person I think of! read more

Wow, James really knows plant and tree biology! Climate, soil pH, fungi and insects, moisture and soil composition, root structure, trunk structure, bark structure, shoot structure, leaf structure, the physics of how trees handle various environmental stresses, fruits and flowers... the list of things he looks for, thinks about, and discusses with you would fill a library. I think the only he thing he didn't discuss with me was plant PSYCHOLOGY, but I'm sure he could share a theory or two on that subject if prompted! As a new home-owner and tree-lover, it's important to me that I learn how to care for my trees and plants properly. James came over for a one-hour visual assessment and oral report, and he reviewed our Aleppo pine, Brazilian pepper, lemon, and bottlebrush trees, as well as my rose bushes, lawn, and herb garden. He gave me a summary on the health of each plant and concrete advice on how to care for them. He told me what I could expect of the plants and trees as they grew, and shared some timely advice on how to deal with the recent heat dome and droughts we've been experiencing. Throughout it all, he answered every question I had with clear and understandable responses, and was willing to delve as deep into the science behind his answers as I cared to probe. I feel like my IQ went up 10 points as we talked. James is friendly, professional, and whip-smart. I highly recommend him to anyone who cares about their trees and wants to get a crash course in plant biology! read more

James provided a very helpful diagnosis to the leaf disease on my orange trees (leafminer). He also referred me to a good online reference. It's much appreciated! read more

After asking for a quote via Yelp, James quickly responded and asked us to text him some photos. He replied same day and asked us to call him. He told us how he thought the tree looked and answered all of our questions. We asked him about coming out and he said we didn't need him, our tree was healthy and if anything changed or if we had further questions give him a call. James was super forthcoming and honest. We would totally use his service if we ever need him in the future and would recommend giving James a call! read more

James provided me with a super prompt and very knowledgeable and honest assessment of an ailing jacaranda. We now have some clear actions we can take to help nurse this tree back to life, if possible. His expertise was great for easing our concern over issues that turn out to be not relevant to this tree. Strongly recommend. Certified arborist for the win! read more

While calling around to get estimates -- we have pervasive white fly on our hibiscus and one of our fruit trees is starting to succumb -- James answered the phone. He was super helpful and even took time to explain the harmlessness of white fly and a few ways I might treat it, he was up front about his in person consultation fee -- and suggested I might first try the LA County Arboretum website and also UCIPM (UC Irvine integrated pest management) for info about containing white fly. Impressed with this business' willingness to give out valuable information -- for sure will translate into customer loyalty down the road. read more

James was super helpful! Asked for pictures of the 3 trees that we're having trouble with and gave me some quick advice for free. We could've hired him for an in-person consultation but he was very up front and said he couldn't guarantee that he will be able to figure out what's wrong with our pine tree. I'm giving James 4 stars since I didn't use his full services but I'd highly recommend others to give him a chance. read more

My experience was fantastic! I spoke with James over the phone and asked him some questions about my giant "sick"amore tree. He was courteous, helpful, and seemed enthusiastic about giving me a thorough answer. read more

We had an issue with one of the trees in our yard. I submitted a quote request with photos and within about 20 minutes James reached out. We spoke for about 10 minutes and he very thoroughly explained the issue with the tree, using helpful analogies to explain the situation. His service was exceptional. Will definitely be requesting his services again if ever we run into another issue. Cannot recommend him enough!! read more

It's rare these days that you meet someone that is knowledgeable, passion and patient with people that have little knowledge of the subject. I'm happy to say that James is that guy. There's a beautiful tree next that has been growing closer and closer to the house. I don't want to cut it down, but I didn't know if or when the tree would hit my house. James walked me through all the info about the tree, how is grows and when it's going to be an issue. I feel so much better now and I think I can save the tree! Thank you !! read more

James is the consummate professional. I'm so glad I reached out to him. After talking to him for a few minutes, has asked me to send some pictures. Once he reviewed the pictures, he replied with his finding. So hard to find someone honest these days. 9 out of 10 people would have charged some nonsense amount and so basically nothing. Thank you James! I will definitely reach out if I need anything else. Highly recommended. read more

James is the best. Took time with me on the phone to discuss my sick guava tree and best options for next steps. He was transparent about costs, which I really appreciate, and had great suggestions for some free botany services. read more

I needed some advice on my avocado trees that have become dryer then usual this summer. I contacted Class One Arboriculture. Immediately Jame contacted me and provided an insight to why my trees have become dry. James offered expert insight, suggestions and procedures to follow to get my avocado trees back to looking healthy again. I appreciated James quick response to my questions and for his professional assessment. Armando read more

I had a plumber put a pipe really close to a tree (closer than I'd expected) and was worried about it. I'd talked to another person at a nursery who had put me in a total panic about the tree, then I messaged James about it on Yelp, and he offered to look at pictures of it over the phone to save on costs. He told me it was a mulberry tree which are really hardy, and it would probably be fine, but that there wasn't a lot to do about it but wait and see. It was really reassuring to talk to someone calming and sane. We also talked about another tree that wasn't looking so good, and he told me there's an invasive disease attacking those trees. He said that we could do a test on it, but even if it was that disease, there's no cure. So he recommended just waiting on that too. In a time when most people are trying to upsell you, it's really nice talking to someone ethical and calming. I highly recommend him. read more