Frequently Asked Questions

Yes. Northwest Arboriculture LLC is fully licensed, bonded, and insured (License #NORTHAL972CR), with ISA Certified Arborists on staff. We are a family-owned company serving King and Snohomish counties since 2000 and are members of the International Society of Arboriculture and the Tree Care Industry Association.

Complete our online service request form or call 360-821-2199. Our office manager will review your request, usually within one business day, and reach out to schedule a visit. An ISA Certified Arborist will walk your property with you, discuss your needs, and provide a written estimate outlining the proposed work.

Yes. Our crew is on call 24 hours a day for emergency storm response, including fallen trees, split trunks, and trees on homes or blocking driveways. Once the emergency is stabilized, we can handle cleanup and any recommended follow-up pruning or removal. For urgent assistance, call 360-821-2199.

Planting mistakes can affect a tree’s health for decades. Nursery-grown trees may have circling or girdling roots, and planting at the wrong depth can create long-term problems. Our arborists inspect the roots, correct issues where needed, and position the tree at the proper depth to give it a strong, healthy start. Read more here about our planting and pruning services. >

Compacted soil can make it difficult for roots to absorb the water and nutrients a tree needs. Our root work and soil improvement services use pneumatic tilling and mulching to improve growing conditions. A specialized air tool loosens the soil, and amendments such as compost and biochar help restore soil structure and support new root growth.

We take care to protect the surrounding landscape and leave the work area clean. Stump grinding and debris removal can be included as part of your project. Let us know what you would like during your site visit so those services can be addressed in your written estimate.