Good workers and clean work. I have used them for tree and landscape and will continue to do so.

I called United Tree Service to take a look at our pine tree that was loosing needles and turning yellow. Mark, the arborist assess the health of the tree and determined that it needed a special treatment which he came back later that evening to do. Mark called a couple times over the next couple weeks to check on how it was doing. We are very pleased with his service and price. Thank you United Tree Service - our trees are doing great. read more

The San Marcos Fire department sent me a notice to clean u the 7.8 acres I own in San Marcos. After trying to take on the job myself with hiring guys from Home Depot and hiring a guy with a trailer I found on the internet, I realized that I needed to hire a professional. I googled tree service near San Marcos and United Tree Service caught my attention because they were the only one with a verified license. Mark Robertson the owner came right out and gave me a price and 4 days later the work was completed as promised the price did not change and I am extremely happy with his work and his crew. I will never use any other company or attempt a job of that magnitude again. His guys made it look easy with the Chipper they brought out it really made a difference The place looks polished! I am very happy! I wish I had photos to post! read more

Mark Robertson its a knowledgeable certified arborist, really knows what he's doing he helped me get couple of trees back to life, bracing, fertilizing and trimming at a really high skill its been 6 months and the tree is blooming beautifully read more

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I have this really big Liquid Amber in the front yard and as the years go by I get more nervous when a wind storm blows through. I don't want the tree to crash down on the house or vehicles. My husband and I had been talking about getting an estimate on what it would take to either lose the tree or get a trim job. I decided to stop lolly gagging and opened up the Poway phone book that we received in the mail 2 days ago. I found United Tree Service, Inc and gave them a call. They came out the next morning, qouted me a price and within two days of starting the process, the tree was trimmed and so was the juniper tree out by the garage. When I came home today, 6/3, the tree looked expertly trimmed and I had a lot more sun in the front yard. I am going to call these folks to have them trim other trees, hedges, etc in the yard because they did such an awesome job this time. Love them!! read more

I called, pressed 1 per the automated system... then got a weird message saying the number has been disconnected (a different number than I called)... but then I got a marketing text. I don't know what's going on there, but I guess I can't get ahold of anyone. read more

This is the second time I've used United Tree Service in the past two years and I've been pleased both times. The first time was to take down two 50 foot tall pine trees and a carrot wood tree. The second time was complicated because it involved myself and the next two neighbors. All of our views were being blocked by a fourth neighbor's trees and bushes below us. Although it took longer than expected, Mark did not hesitate to spend the extra time to insure that all three of us were satisfied with the results. Mark Robertson and his crew are total professionals. They showed up on time and cleaned everything up before they left. Great company and I would not hesitate to use them again. read more

Not all tree trimmers are run by a certified arborist so if you have a removal or, especially, tree maintenance needs I'd recommend looking into UTS. Very knowledgeable. Competitive pricing. Nice guy. read more

Tried contacting this company and I get a busy signal 24/7. Are they still in business?

A recent windstorm pushed a tree into the house (no damage, thankfully) and a call into United Tree Service got it taken care of right away. Mark was quick to come out and take a look and was very straight foward in his assessment and got it taken care of in the same day. He even deposited the mulch from the tree into our yard and some garbage cans so that we could make use of it (and save the haul-away fee). read more

In the process of purchasing a home and had a concern about a tree that was close to the home. I understand that time is money but there really needs to be a consideration of potential business. Had the owner had more of an inclination to be helpful/genuine nature versus solely posturing around money, I would have been happy to give him the business as this home has numerous trees that need to be maintained. Instead he led out with justifying his exorbitant fee (almost $400) to consult on one tree. I also inquired about general information as it related to root type and he said he couldn't comment without inspecting the tree. In general, not a good vibe and just not the way to do business... read more

Mark (owner) of United Tree Service was professional, reliable, easy for me to reach even when out of the office, He and his company did a great job for me! read more

Mark is very professional and knowledgeable. He did a great job on several trees at our new home which had been neglected for a long time. We highly recommend United Tree Service! read more

We just had United Tree Service out today to do some major clean up, shaping and trimming several trees and removal of several king palms. Mark Robertson was very knowledgeable and made many recommendations. His crew did a wonderful job and were very careful around other plants, electrical and lighting. The place was cleaned up and the price was great! We checked his license number and he is fully insured, bonded and has workman's comp insurance. It's amazing how many companies don't. We highly recommend them! read more

Extremely happy with the service provided. Mark was very helpful in advising the trimming we needed done (numerous palms, bougainvillea and hibiscus bushes) and his professional, friendly crew did a terrific job - from trimming to total cleanup!! Will definitely use them again for our future yard trimming needs. read more

I have 30 large Queen palms and about 70 other, smaller palms on my property, and have entrusted United Tree Service with their care for several years now. The owner, Mark Robertson, is a certified arborist who definitely knows his stuff. For example, he always has his crew clean their equipment with bleach before starting work, to ensure that no disease is passed from one property to another. Like Mark, his foreman is top-knotch and a pleasure to deal with. They go the extra mile to please. I strongly recommend United Tree Service. read more