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TRUSTED BY CORNELIUS, OR HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon2.5k+
    Verified arboricultural services reviews

Find Arborists in Cornelius

"We recently expanded a deck, added a patio cover, and are putting a hot tub underneath this second floor deck. There was a concrete patio below the existing deck and we wanted to match that, w/ reinforcement for a hot tub. We got a couple bids for the job. Danny was the estimator that came out for Forest and he seemed knowledgeable and was punctual and professional. It was not the cheapest bid, but the company is much more well established than a couple others we consulted so I put more trust in their work. Rigo is the guy we needed to work with on scheduling etc. for concrete work. This was a little rocky at first, but that had a lot to do with us needing to postpone the start till our deck was done, but then also work around a vacation we'd be taking, and make sure the concrete had enough time to cure before our hot tub is dropped. Despite a slight language barrier, we worked it out and even managed to get it done ahead of when we originally scheduled it. Punctuality is impressive with these guys. For 3 days they were waiting outside our house to start at 7:30am precisely. They had to remove a portion of fence and work around some foliage for access. They ended up encountering an unexpected drainage tube of some kind while digging and made sure to create an access point for us if it's ever needed in the future. The concrete looks great and matches our old patio so well, it's hard to tell they weren't poured together. Danny and I (and later Rigo) discussed treating the old concrete to help the matching. At the end of the work they did a great job of cleaning up the area and returning everything to normal. Rigo also helped us by showing us how to remove the fence portion for when our hot tub is delivered and left the top cap off because he said we'd really struggle to get it off if they put it back. I'm happy with the work, communication, and cleanup and trust if there are any problems I will be able to get them resolved. If we have further landscape needs in the future I will def be calling Forest for a bid."

Amanda M on June 2022

Forest Landscape, Inc is proud to present our customs landscapes for your home.We are a landscape company that emphasizes more then your typical, run-of-the mill projects that take up space within your neighborhood.

"We recently expanded a deck, added a patio cover, and are putting a hot tub underneath this second floor deck. There was a concrete patio below the existing deck and we wanted to match that, w/ reinforcement for a hot tub. We got a couple bids for the job. Danny was the estimator that came out for Forest and he seemed knowledgeable and was punctual and professional. It was not the cheapest bid, but the company is much more well established than a couple others we consulted so I put more trust in their work. Rigo is the guy we needed to work with on scheduling etc. for concrete work. This was a little rocky at first, but that had a lot to do with us needing to postpone the start till our deck was done, but then also work around a vacation we'd be taking, and make sure the concrete had enough time to cure before our hot tub is dropped. Despite a slight language barrier, we worked it out and even managed to get it done ahead of when we originally scheduled it. Punctuality is impressive with these guys. For 3 days they were waiting outside our house to start at 7:30am precisely. They had to remove a portion of fence and work around some foliage for access. They ended up encountering an unexpected drainage tube of some kind while digging and made sure to create an access point for us if it's ever needed in the future. The concrete looks great and matches our old patio so well, it's hard to tell they weren't poured together. Danny and I (and later Rigo) discussed treating the old concrete to help the matching. At the end of the work they did a great job of cleaning up the area and returning everything to normal. Rigo also helped us by showing us how to remove the fence portion for when our hot tub is delivered and left the top cap off because he said we'd really struggle to get it off if they put it back. I'm happy with the work, communication, and cleanup and trust if there are any problems I will be able to get them resolved. If we have further landscape needs in the future I will def be calling Forest for a bid."

Amanda M on June 2022


"Israel and his team were great to work with and I am really happy with both of the projects they competed for me. They replaced an old, failing retaining wall with a beautiful stone retaining wall with a French drain behind it. I showed Israel pictures of what I wanted it to look like and his team did an amazing job making my vision a reality. They were careful with my existing plants and landscaping and went above and beyond by moving and repotting a shrub that I was unable to move by myself before the work began. They also replaced parts of my backyard that had been removed by neighbors and built a beautiful new fence and gate out of cedar. They did an amazing job matching the style of the existing fence and my yard looks so much better now. I am so happy with everything and I would work with GI Landscaping again anytime!"

Rachel H on May 2025

Landscaping business locally owned and operated we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Israel and his team were great to work with and I am really happy with both of the projects they competed for me. They replaced an old, failing retaining wall with a beautiful stone retaining wall with a French drain behind it. I showed Israel pictures of what I wanted it to look like and his team did an amazing job making my vision a reality. They were careful with my existing plants and landscaping and went above and beyond by moving and repotting a shrub that I was unable to move by myself before the work began. They also replaced parts of my backyard that had been removed by neighbors and built a beautiful new fence and gate out of cedar. They did an amazing job matching the style of the existing fence and my yard looks so much better now. I am so happy with everything and I would work with GI Landscaping again anytime!"

Rachel H on May 2025


Avatar for Global Green Tree and Landscape Service

Global Green Tree and Landscape Service

Portland
4.60(
10
)
Approved Pro

Global Green Tree and Landscape Service

Portland
4.60(
10
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
29 local quotes requested

Global Green— https://www.globalgreenpdx.com is your trusted, tree and landscape service in Portland, OR, with expertise in local tree care, shrub care, landscape cleanup and yard maintenance. We specialize in affordable tree removal, tree pruning, and landscape services. Our fully licensed, bonded, and insured arborists provide proactive solutions. Get a quote today - https://www.globalgreenpdx.com/estimate - or call us today at: (503) 839-5402

"Trees are so much better now! Excellent experience. Highly Recommend!"

Adam F on April 2025

Global Green— https://www.globalgreenpdx.com is your trusted, tree and landscape service in Portland, OR, with expertise in local tree care, shrub care, landscape cleanup and yard maintenance. We specialize in affordable tree removal, tree pruning, and landscape services. Our fully licensed, bonded, and insured arborists provide proactive solutions. Get a quote today - https://www.globalgreenpdx.com/estimate - or call us today at: (503) 839-5402

"Trees are so much better now! Excellent experience. Highly Recommend!"

Adam F on April 2025


Avatar for Onyx Landscape

Onyx Landscape

5.00(
1
)
Approved Pro

Onyx Landscape

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
45 local quotes requested

Landscape Design and Build Specialist Creating and Transforming Outdoor Spaces - Landscape Construction - Pavers and Retaining Walls - Walkways, Driveways, and Patios - Sprinkler systems - Outdoor Lighting - Artificial Turf - Boulders and Natural Stone

"We are thrilled with our new back yard! Alex and his crew did great work, gave us a beautiful plan and finished project, and finished ahead of schedule. They took our small yard from bare clay, gravel, and standing water to a lovely oasis. I asked for raised beds that I could plant in; they installed irrigation, lighting, hardscaping, and our beautiful pergola along with trees and shrubs to form the backbone of our garden. We're very happy with the results."

Theresa M on July 2024

Landscape Design and Build Specialist Creating and Transforming Outdoor Spaces - Landscape Construction - Pavers and Retaining Walls - Walkways, Driveways, and Patios - Sprinkler systems - Outdoor Lighting - Artificial Turf - Boulders and Natural Stone

"We are thrilled with our new back yard! Alex and his crew did great work, gave us a beautiful plan and finished project, and finished ahead of schedule. They took our small yard from bare clay, gravel, and standing water to a lovely oasis. I asked for raised beds that I could plant in; they installed irrigation, lighting, hardscaping, and our beautiful pergola along with trees and shrubs to form the backbone of our garden. We're very happy with the results."

Theresa M on July 2024


"Robert and the team at Artistic Landscapes were so amazing to work with. After my spouse and I fell ill over the summer, we had to let the yard go, and it took us a long time to recover so we never had enough energy to catch up. By the time we called Robert, we felt embarrassed of our yard and anxious to get it resolved. We have struggled in the past getting landscapers to follow through with giving us bids so we were nervous about starting that process again. Other crews that we hired wouldn't complete the job as described and made us feel like we were being difficult for asking questions or speaking up. This was NOT the case with Robert and his team. They were kind, communicative, affordable, flexible and the end product was gorgeous. They promised 100% and gave us 200%. We kept the crew on for monthly maintenance which will ensure that we have a gorgeous yard for years to come. Thanks to Robert, Salvador, Eduardo, Sarah and all of the folks who worked on our project in some way. We are eternally grateful, and feel like proud homeowners again."

Rebekah B on December 2024

No yearly contracts required for maintenance customers, month to month billing available. OLCB License #9292. Owner and Landscape Contractor: Robert Kinsey. Designer and Office Manager: Sarah Kinsey. Additional email - [email protected]. Award Winning .

"Robert and the team at Artistic Landscapes were so amazing to work with. After my spouse and I fell ill over the summer, we had to let the yard go, and it took us a long time to recover so we never had enough energy to catch up. By the time we called Robert, we felt embarrassed of our yard and anxious to get it resolved. We have struggled in the past getting landscapers to follow through with giving us bids so we were nervous about starting that process again. Other crews that we hired wouldn't complete the job as described and made us feel like we were being difficult for asking questions or speaking up. This was NOT the case with Robert and his team. They were kind, communicative, affordable, flexible and the end product was gorgeous. They promised 100% and gave us 200%. We kept the crew on for monthly maintenance which will ensure that we have a gorgeous yard for years to come. Thanks to Robert, Salvador, Eduardo, Sarah and all of the folks who worked on our project in some way. We are eternally grateful, and feel like proud homeowners again."

Rebekah B on December 2024


Avatar for Oregon Tree Service LLC

Oregon Tree Service LLC

19009 NW Green Mountain Rd
5.00(
14
)
Approved Pro

Oregon Tree Service LLC

19009 NW Green Mountain Rd
5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
47 local quotes requested

Best Tree Service company. If you need any tree related service, we got you! There is no project too big or too small for us. Call or send us a message anytime of the day or night! We are happy to help you and even offer 24/7 emergency service. Check out my reviews to see what your neighbors are saying about me! ISA Climber specialist, ISA Tree Risk Assessment, ISA Certified Arborist PN-8698AT

"Hired Oregon Tree Service to trim three deciduous trees. Rheir price was reasonable and their service was excellent. The crew arrived on time, as promised, and worke efficiently to trim the trees. They were profesional, knowledgeable, neat, and very personable. The did excellent work and removed all the debris from the work. We were very happy and willl use them again."

ROBERT S on March 2024

Best Tree Service company. If you need any tree related service, we got you! There is no project too big or too small for us. Call or send us a message anytime of the day or night! We are happy to help you and even offer 24/7 emergency service. Check out my reviews to see what your neighbors are saying about me! ISA Climber specialist, ISA Tree Risk Assessment, ISA Certified Arborist PN-8698AT

"Hired Oregon Tree Service to trim three deciduous trees. Rheir price was reasonable and their service was excellent. The crew arrived on time, as promised, and worke efficiently to trim the trees. They were profesional, knowledgeable, neat, and very personable. The did excellent work and removed all the debris from the work. We were very happy and willl use them again."

ROBERT S on March 2024


Avatar for North Woods Tree Service

North Woods Tree Service

23533 S. Woodview Ln.
4.97(
107
)
Approved Pro

North Woods Tree Service

23533 S. Woodview Ln.
4.97(
107
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 local quotes requested

North Woods Tree Service has been serving the Pacific Northwest since 1986, tackling the jobs other companies won’t. Based in Oregon, we proudly serve Clackamas County, Multnomah County, Washington County, and parts of Clark County, WA — providing safe, professional, and efficient tree services you can trust. We specialize in emergency tree removal, standard tree removal, tree trimming and pruning, stump grinding and removal, debris removal, land and lot clearing, logging, and site preparation. Our experienced crew handles every project with precision, leaving your property cleaner than when we arrived. Fully licensed, bonded, and insured, North Woods is the go-to choice for tree service near Portland, Oregon, and throughout the Pacific Northwest. ✅ Emergency Tree Removal ✅ Tree Trimming & Pruning ✅ Tree & Stump Removal ✅ Land & Lot Clearing ✅ Logging Call North Woods Tree Service today for your free estimate — the trusted team for the toughest jobs in the Northwest.

"Excellent service. The pruning of the 2nd oak tree and the Hawthorne tree was done one day, and all other work done the next day. The 4-person crew was very professional, kind, and respectful of the property. The large oak I had removed was right up against a new fence, and not far from the side of my house. And, it was not in an area to get a bucket truck nearby. They arrived right on time at the start of the day and worked hard with minimal breaks - very impressive. They ground the stump from the large oak as well as grinding a couple of leftover stumps from previously removed holly trees. Their cleanup was superb! They even blew stuff off the top of my roof! And the wood cut down was nicely rolled together - not just dumped into a large messy clump! And, they were cheaper than another bid I got from a company here on Angie. I cannot recommend them high enough."

CHERYL M on September 2021

North Woods Tree Service has been serving the Pacific Northwest since 1986, tackling the jobs other companies won’t. Based in Oregon, we proudly serve Clackamas County, Multnomah County, Washington County, and parts of Clark County, WA — providing safe, professional, and efficient tree services you can trust. We specialize in emergency tree removal, standard tree removal, tree trimming and pruning, stump grinding and removal, debris removal, land and lot clearing, logging, and site preparation. Our experienced crew handles every project with precision, leaving your property cleaner than when we arrived. Fully licensed, bonded, and insured, North Woods is the go-to choice for tree service near Portland, Oregon, and throughout the Pacific Northwest. ✅ Emergency Tree Removal ✅ Tree Trimming & Pruning ✅ Tree & Stump Removal ✅ Land & Lot Clearing ✅ Logging Call North Woods Tree Service today for your free estimate — the trusted team for the toughest jobs in the Northwest.

"Excellent service. The pruning of the 2nd oak tree and the Hawthorne tree was done one day, and all other work done the next day. The 4-person crew was very professional, kind, and respectful of the property. The large oak I had removed was right up against a new fence, and not far from the side of my house. And, it was not in an area to get a bucket truck nearby. They arrived right on time at the start of the day and worked hard with minimal breaks - very impressive. They ground the stump from the large oak as well as grinding a couple of leftover stumps from previously removed holly trees. Their cleanup was superb! They even blew stuff off the top of my roof! And the wood cut down was nicely rolled together - not just dumped into a large messy clump! And, they were cheaper than another bid I got from a company here on Angie. I cannot recommend them high enough."

CHERYL M on September 2021


Climbing Monkeys Tree Services & Landscaping, LLC

4.69(
16
)
Approved Pro

Climbing Monkeys Tree Services & Landscaping, LLC

4.69(
16
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
28 local quotes requested

Climbing Monkeys Tree Services & Landscaping, LLC is a professional tree and landscaping company located in Hillsboro, OR. Don’t waste your time and call us now! Tree Pruning, Tree Cutting, Tree Removal Service, Tree Trimming Service, Landscape Design Arbor Roses Hillsboro, OR; Aloha, OR; Elmonica, OR; Cedar Hills, OR; Hazeldale, OR; Tree Service, Tree Removal, Tree Trimming, Professional Tree Services, Quality Tree Services http://climbingmonkeystreeservices.com/

"I don’t know if they’re good at their professional services or not, but their truck pulled out right in front of me on the highway and I had to slam on my brakes to avoid hitting them. Then they continue to go 10 miles under the speed limit. Even though their hazard lights were on, not all of their hazard lights even worked and it doesn’t give them the right to potentially cause an accident. If their road safety is any indication of their work safety, I would never hire them."

Jennifer N on November 2025

Climbing Monkeys Tree Services & Landscaping, LLC is a professional tree and landscaping company located in Hillsboro, OR. Don’t waste your time and call us now! Tree Pruning, Tree Cutting, Tree Removal Service, Tree Trimming Service, Landscape Design Arbor Roses Hillsboro, OR; Aloha, OR; Elmonica, OR; Cedar Hills, OR; Hazeldale, OR; Tree Service, Tree Removal, Tree Trimming, Professional Tree Services, Quality Tree Services http://climbingmonkeystreeservices.com/

"I don’t know if they’re good at their professional services or not, but their truck pulled out right in front of me on the highway and I had to slam on my brakes to avoid hitting them. Then they continue to go 10 miles under the speed limit. Even though their hazard lights were on, not all of their hazard lights even worked and it doesn’t give them the right to potentially cause an accident. If their road safety is any indication of their work safety, I would never hire them."

Jennifer N on November 2025


Green Sky Tree Services

PO Box 265
5.00(
76
)
Approved Pro

Green Sky Tree Services

PO Box 265
5.00(
76
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
34 local quotes requested

Owner operated tree service. Providing services for the Willamette Valley and the Portland metro area since 2004. Green Sky Tree Services has over 30 years of combined experience in tree removal and landscaping business.

"The personnel for Green Sky Tree Service was punctual, professional, and the result was outstanding. The service provided was Tree trimming; this had been a service that was overdue, and when I called, they responded quickly and did a great job for us. We would definitely call them back and recommend them to friends and family!"

Koren R on May 2025

Owner operated tree service. Providing services for the Willamette Valley and the Portland metro area since 2004. Green Sky Tree Services has over 30 years of combined experience in tree removal and landscaping business.

"The personnel for Green Sky Tree Service was punctual, professional, and the result was outstanding. The service provided was Tree trimming; this had been a service that was overdue, and when I called, they responded quickly and did a great job for us. We would definitely call them back and recommend them to friends and family!"

Koren R on May 2025


Avatar for Roman Shevchenko Enterprises

Roman Shevchenko Enterprises

23230 S Hwy 99 E
5.00(
1
)
Approved Pro

Roman Shevchenko Enterprises

23230 S Hwy 99 E
5.00(
1
)
Approved Pro
4 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

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Arborists questions, answered by experts

Your fence post holes should be about three times as wide as the post. So if your post is 4-by-4 inches, you should make your hole at least 12 inches wide. The depth of the hole depends on the height of your post, but it should be as deep as one-third of the post height.

You can install exposed solid wood beams for between $6 and $80 per linear foot, but these beams are often decorative if you’re retrofitting an existing home with them. Laminated veneer lumber beams, more commonly called LVL beams, cost $3 to $12 per linear foot, and while they can’t span nearly as long of a distance as steel I-beams, they can provide more open spaces than traditional wooden beams.

On average, a prefabricated pergola kit takes one to four hours to build. Prefabricated pergolas are the fastest to install and could save you money, while custom pergolas can take several days to install, ranging from eight to 16 hours. The number of workers on the project can also impact how long it takes to install a pergola. 

If you need to build a concrete slab, level your property, or remove obstacles from your yard before building a pergola, then your project could take several weeks to complete.

The cost of a pergola varies depending on the style you choose. The average price is between $2,100 and $6,400 for materials and installation. On the low end, a standard pergola will cost between $20 and $55 per square foot, while a retractable pergola will cost between $900 and $3,000 to build. If you plan to build the pergola over a pre-existing deck or patio, that will increase the cost.

Costs range from $2,500 to $10,000, depending on size, material, and design complexity.

The Cornelius, OR homeowners’ guide to arboricultural services

From average costs to expert advice, get all the answers you need to get your job done.