Always a great job, they clean up well and are on time and reasonable. Scheduling was easy.read more

My neighbor and I hired Western Hemlock Tree & Stump Removal to do selective pruning on a shared…read moreWestern white pine, and the result was devastating. We agreed to pruning after a branch had previously fallen on my neighbor's house, so we wanted the work done responsibly and according to an arborist's recommendations. The tree is also classified as a Tier 2 tree under Seattle code (previously called an "exceptional tree"), which made it even more important that the pruning be done carefully and conservatively. Before any work was done, I hired an arborist to evaluate the tree and provide a report, which was referenced in the contract. Unfortunately, it became obvious afterward that they either never read the report or completely ignored its recommendations. The tree was massively overtrimmed and heavily underskirted to the point that it now looks mutilated. I am genuinely depressed every time I look at it. What was once a beautiful mature tree now looks stripped and unnatural. The company never communicated with us directly before doing the work and instead coordinated only with my neighbor while I was out of town. At no point did they review the plan with us, discuss the arborist recommendations, or confirm the scope of pruning before cutting. To their credit, they did provide a partial refund afterward, but it does not make up for the irreversible damage done to the tree or the distress this has caused. We hired professionals because we wanted careful, informed tree care -- not permanent damage. Extremely disappointed.

On time, quality work and they cleaned up after trimming and cutting down trees. Highly recommendread more

Very good team, cost effective, and done in a timely manner. I would recommend them to anyone.read more

Very quick in their response to an emergency situation (tree vs. roof). Easy to work with.read more

Brandon and his crew were fantastic. We had some existing cherry blossom trees pruned and a large…read moretree trimmed of deadwood and shoots. The job was thoroughly explained by Brandon. The crew were prompt, professional and cleaned up well after themselves. They even assisted our neighbors with a little side job. Wonderful crew and company. Highly recommend. We will use them again in the near future to remove some dying trees.

I needed someone to do an overall prune of a property with many trees. Andy my estimator had some…read morethoughtful comments about the different trees on the property. The team that came out was efficient and also thoughtful. The crew lead gave me some tips about the likely longer term future of a couple tricky trees on the property. They are respectful of permit rules, I have one tree with many trunks that they trimmed as much as they could but suggested I'll need to revisit it this summer when it's more clear how much is dead and make sure it's finished off within permit rules. They don't do permits themselves but can refer someone to help if the homeowner isn't up for it. There was quite a bit of debris from the trimming but when they left the yard was fully tidied, the furniture moved back into place, and the decaying gate carefully closed with a prop against it. Thank you! The final cost was as estimated.

Good results and reasonable price…read more But very poor communication. Ignored repeated emails and phone calls, didn't get a timeframe for arrival. Phone number on site didn't match the phone number on their quote (but they didn't answer either). But in the end, the team did show up and they were very friendly and efficient. The results look good but I hope the company improves its communication and responsiveness.

We are extremely happy with our tree trim service in front and out back. We now have serious…read moresunlight in the living room and out back.

We had a tree taken down in our front yard. They did an excellent job! I would definitely recommend…read morethem. They not only brought it down safely, they cleaned up completely. Fair price as well!

We were quite worried that our big leaning spruce tree might fall in a storm and hit the house, or…read moreworse -- simply no longer be there to bless the home with its beautiful presence! Trent stopped by to take a look and was an absolute pleasure to discuss the risk posed by the tree. You can tell he lives, breathes, and loves trees. I asked a lot of questions eager for his expertise. We left feeling extremely comfortable we can keep our tree, with good homework on how to gauge future risk. Thanks Trent and NW Arbor!

We've used NW Arboriculture several times over the years, and they've been consistently honest,…read moreethical, competitively priced, and skilled. After our most recent project with them, I decided it was finally time to give Trent, Heather, and their outstanding team the great review they deserve. For this project, we obtained bids from three other companies in the area while waiting for Trent to come out and bid the project. (NW Arboriculture's only drawback is that they typically book out pretty far in advance, but I'll explain why that may be a good thing a bit later.) Two out of the other three local companies counseled us that we needed to remove a couple of very large trees (that we hadn't been worried about) - at a cost of thousands of dollars per tree - that were in danger of falling down due to disease or damage. Interestingly, their recommendations for which trees needed removal were not identical. The third company's estimator did not recommend the same removals, but the post-visit bidding process was strangely non-specific, and he contradicted himself multiple times during a single conversation. As we were still waiting for NW Arboriculture to come out and bid the project, we hired an independent arborist for a couple hundred bucks to come out and evaluate every tree and shrub on our property. That was money well-spent. He explained why much of what the first two companies' estimators told us was completely wrong. I suppose the generous interpretation is that they just didn't know what they didn't know. The less generous interpretation is that they're frankly unethical. When Trent from NW Arboriculture came out to bid the project, he told us the same stuff as did the independent arborist, which was tremendously reassuring. Further, the great thing about NWA is that the person who bids the project works the project. We had so many items on our bid, that I don't think things would have gone as smoothly if one of the other companies (which don't necessarily have the estimator on the job site) had done the job. Anyway, this is part of the reason why it takes so long for NWA to come out to bid; they have to balance giving estimates with actually doing work. But it's worth the wait. With respect to the work itself, the team was able to take down a bunch of trees without damaging any shrubs that they promised in advance to not damage. I think one had to be sacrificed, but we were counseled about that during the bidding process. They also were very patient and easy to work with during the trimming of some large trees, as we gave them feedback regarding the look we were trying to achieve. About 4-5 hours after starting this sizable project, they wrapped up and cleared away all debris, to the point where our driveway looks more pristine than it has all year. Then they moved on to my neighbor's house and spent the rest of the day there. I asked him if he was happy with their work, and he responded that they did outstanding work for him as well. In summary, I may not even bother with multiple bids in the future, as this process has proven that NWA is clearly one of the best tree removal companies, and unfortunately some of the others in this area are either less knowledgable and/or frankly unethical.

Angel and his team at Cornona do exceptional work! Offered advice, worked quickly, and I walked…read moreaway with our patio space all prepped. Thank you guys! You rock!

The Corona Landscaping team did a fantastic job building the retaining wall and putting the…read moredrainage to mitigate my hillside erosion. I am really happy that they used pictures from the project as an example of their work. A really great business. You will not be disappointed.

Good job. Competitive bid. Arrived on time and efficiently removed the tree that got to big for…read moreits own good in a location too close to the house. They were careful of the plants/trees nearby and cleaned up the mess.

Had to have a large Maple tree taken down following a storm last year. Of the quotes I got, this…read moregroup was the most reasonable. They were also responsive and professional. The job ended up taking longer than they thought - not their fault, the tree was huge and the storm damage made it difficult - but they stuck to their original quote. Even helped arrange donation of the wood. I recommend them and would use them again.

A-1 was recommended to me from a business in Monroe. My neighbor informed me that he was unhappy…read morewith my huge cherry tree reaching over into his yard. Today A-1came out and took down the whole cherry tree, and also trimmed off branches from my maple tree. I am so impressed with their professional work! They cut the tree, hauled away all limbs and completely cleaned the job site. All completed at a very reasonable cost. I would recommend A-1Tree Service Conservation to anyone looking for a very Professional, reputable Tree Service. Suzie Black Monroe Wa.

From the owner: We're a locally owned and operated tree service for King and Snohomish Counties in Washington…read moreState. We cover all your tree care needs and have over 30 years of combined experience.