Tree Harmony Arborists
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Scott Sinclair founded Tree Harmony Arborists seven years ago after training under a senior arborist for a number of years. There he learned tree health and safety, best pruning practices, crew leadership, project pricing and management, and client relations. Scott has planned, supervised, and successfully completed over 1000 projects in his professional service.

The range of work has encompassed difficult technical removals, pruning large trees for safety, classical pruning of leaf trees (such as Japanese Maples), ornamental pruning such as roses, rhododendrons, and trellises, view pruning, and hedge and shrub shaping. After forming Tree Harmony, Scott has executed over 700 projects for his clients.

He and his team are dedicated to furnishing the highest level of professional tree care, marked by reliability, safety, integrity, and value. Tree Harmony is committed to building long-term relationships with our clients. We want to be a source of education, inspiration and expertise for their ongoing needs.
Services
Our company is dedicated to furnishing our clients with a full range of arborist services. Our projects are often comprehensive in nature; that is, we typically consult on a number of trees as to their health and safety. By providing a comprehensive team of professionals who are exceptional pruners, and, are skilled and safe at difficult removals, we are able to work with the needs of our client and recommend the most prudent course of action.
Reviews (8)
Jay Mezistrano
Jay Mezistrano
Jun 27, 2020
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It had been a great experience working with Scott and his team of professionals. They pruned a large Big Leaf Maple properly for it's health and safety. As well, they pruned several English and Portuguese Laurel for their health and good structure. After the job is completed I really felt like every dollar was well spent. His team is super meticulous and professional - thank you Scott. No debris were left behind at all. I would highly recommend Tree Harmony as an Arborist; I told Scott we will recommend his company to our family, friends and neighbors!
Darcy M.
Darcy M.
Jun 10, 2020
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Very professional, outstanding expertise and hardworking. Love these guys, the entire team was all around amazing to work with. Scott Sinclair’s work was impeccable. His expertise is a rare find in today’s world and something highly valuable. They very selectively pruned, removed dead wood, climbed large trees, ground a couple old stumps and provided expert knowledge on the care of the trees. Afterward they cleaned everything and Scott does a walk through with you to make sure all is satisfactory. Neighbors have now requested him to do work for them. Highly recommend this amazing group.
Karilyn Dammarell
Karilyn Dammarell
Dec 04, 2014
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I recently had Scott Sinclair and Tree Harmony Arborists do some work at my home in Redmond. The scope of work included pruning and trimming a Japanese Maple in the front of the house and inspecting a tall Evergreen tree to see if it was sick.
The work was of impeccable quality and his opinion about the Evergreen was absolutely correct. The work was done on schedule and on budget. The investment was well worth it. I plan to use Tree Harmony Arborists in the future.
Laura Zimmerman
Laura Zimmerman
Oct 14, 2014
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Scott did some work for us about five years ago. The trees have been doing great ever since.
About a month ago, Scott stopped by to see how everything was. He took me out into the yard and showed me a few more things that now needed attention. The things he pointed out were obvious once he showed them to me. He brought his crew in within a week and had everything trimmed up and on their way to good health once again. Clean-up was great - you'd never know how much debris had been on the ground earlier in the day!
We didn't get other bids this time - basically the cost seemed reasonable for the
James Woollard
James Woollard
Oct 07, 2014
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I highly recommend Tree Harmony Arborists LLC (Mercer Island). Scott Sinclair of Tree Harmony completed some pruning to a Vine Maple tree at the front of my house and cut down and removed a total of four very fast-growing Leyland Cypress trees growing in my backyard in the Redmond Ridge neighborhood of Redmond, Washington. I wanted the Cypress trees removed because they were blocking light and the maple needed trimming back for a combination of aesthetic reasons and to keep it from touching the side of the house. Scott came across as professional – I met with him to show him the project requirements
Bob Schmidt
Bob Schmidt
Sep 30, 2014
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Scott and is crew did a terrific job. We live in Bellevue, WA and initially used Scott and Tree Harmony back in 2012. Hi is timely, makes knowledgeable recommendations, does excellent work, and is a difference maker in the look of our place. We have a variety of plants....bamboo, small evergreens, plum trees, magnolias, etc....which makes working with a skilled arborist a necessity. Further, he has an artistic side which is often the skill most needed to do great design work. Everything was done on-time, on-budget, and with the care and attention we have come to expect with Scott and his crew.
Angela McLean
Angela McLean
Jul 13, 2014
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Tree Harmony Arborists provided a wonderful service for our very overgrown trees and shrubs. My husband and I worked with Scott Sinclair who is a very professional arborist. Scott communicated effectively with my husband and I what needed to be done to properly maintain and care for our trees. In addition, his crew was timely, polite, and safe. We had a very tall fir which needed to be pruned and a couple of cedars which also needed to be cleaned up. Scott and crew also shaped and pruned our rhododendrons, Camilla, and Vine and Japanese Maples. All looked beautiful after they were safely and properly
Hank W.
Hank W.
Jun 13, 2014
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The crew of Tree Harmony pruned a large fir for it's safety and health. The tree was perched over steep slope, a rather difficult project (which they performed beautifully). We had our front Japanese Maple pruned to provide light to our front window and
clearance from the roof. Scott and crew also pruned several smaller trees and shrubs. Their cleanup and efficiency was terrific.
Work was performed on time and per my expectations. Crew was courteous, safe, and enjoyable to have. Scott was helpful in educating about our trees and how to care for them. I would strongly recommend Tree Harmony to