ISA-certified arborist performing deep root fertilization soil injection around a mature tree
Preventative Care

Proactive Tree Health Programs That Extend Canopy Life

Deep root fertilization, disease monitoring, and soil health management — the preventative work that avoids expensive removal later.

Call (971) 319-0003
What's Included

What Preventative Care Includes

Every program is tailored to the species, site conditions, and risk profile of your trees — not a one-size-fits-all treatment schedule.

Deep Root Fertilization

High-pressure soil injection delivers nutrients directly to the root zone — bypassing compacted surface soil and getting to where it matters.

Insect & Disease Monitoring

Early identification of Emerald Ash Borer, aphid colonies, scale, fungal cankers, and other Pacific Northwest tree threats — before they become removal decisions.

Soil Health Management

Compaction relief through vertical mulching, soil pH adjustment, and mycorrhizal inoculation to restore the root environment.

Structural Support Systems

Dynamic and static cabling and bracing for high-value trees with co-dominant stems, included bark, or wind-load concerns.

The Value

Prevention Costs Less Than Removal

Annual Care Program

$1,500/year

Deep root fertilization, seasonal monitoring, and ISA-certified inspections.

Emergency Removal

$1,500–$5,000+

Average cost to remove a mature neglected tree — often more on commercial.

Healthy trees also increase property value by up to 15% according to USDA Forest Service research.

Commercial Programs

Preventative care is the foundation of every Peak Tree Maintenance Agreement.

Our Work

Our Crews at Work

Planning tree work? Learn what shapes the scope of a proposal.

What drives the cost of tree work

Start a Preventative Care Program

Client Reviews

Christina N.

Portland Metro · Cabling, Bracing and Pruning · July 2026

Absolutely the best my tree has ever looked! I've had my tree trimmed 4 times over the years and this was the best company I've worked with. They were reasonably priced and clean. They took my concerns seriously and understood that my main priority was my tree's health. I have an 80 foot oak tree and really want it to be storm proof, I'm very happy to say I think it is.

Lisa H.

Portland Metro · Emerald Ash Borer Treatment · October 2025

Peak Tree Specialists were great. They are certified to inject Emerald Ash Bore treatment into Ash trees. They treated some of our trees and were professional.