Northern Illinois Certified Arborists Dedicated To Healthy Landscapes
Arborist in Winnetka, Glencoe, Highland Park, Lake Forest, Glenview, Northbrook, Deerfield, Wilmette, and Kenilworth | Tree Service | Prairie Tree Care
Your connection to nature begins at home.
Prairie Tree Care Certified Arborists help North Shore homeowners, property managers, and developers protect the legacy trees that define the lakeside communities from Wilmette to Lake Forest.
Getting started is easy.
Call Us Today: 773-599-3335 or
Your Local Tree Care Experts: ISA Certified Arborist serving Winnetka, Glencoe, Highland Park, Lake Forest, Glenview, Northbrook, Deerfield, Wilmette, and Kenilworth.
Our Tree Care Services
Structural support systems that preserve mature trees worth saving.
ANSI A300-standard pruning that improves structure, reduces risk, and extends the life of your trees.
Targeted treatment programs for disease, insects, and soil health — built around your specific trees.
Safe, technically precise removal of dead, damaged, and hazardous trees throughout Chicagoland.
Fast response to storm damage and failed trees, when it can't wait.
Expert arborist opinions, documented and defensible.
Right tree, right place, installed correctly from the start.
Certified Arborist Services for Chicago's North Shore
The North Shore is defined by its trees. The towering white oaks of Winnetka's Indian Hill neighborhood, the deep ravine forests of Glencoe and Highland Park, the formal estate landscapes of Lake Forest — these are communities where mature trees are central to both property character and property value. A single specimen oak on a North Shore property can contribute $15,000-$50,000 or more to appraised value, and the loss of a significant tree affects not just aesthetics but resale positioning.
Prairie Tree Care provides ISA Certified Arborist services throughout Chicago's North Shore , bringing science-based care to the residential and commercial properties that define these communities.
The Local Tree Care Difference
Prairie Tree Care provides full-service tree care across Chicago's North Shore — tree removal, structural pruning, Plant Health Care, and heritage tree management. As ISA Certified Arborists, we bring science-based care to the mature canopy that defines Winnetka, Wilmette, Glencoe, and the surrounding communities.
John Powell
Owner-Prairie Tree Care
Certified Arborist IL-10149A, TRAQ, CTSP
Tree Challenges Specific to the North Shore
Ravine and Bluff Properties
Glencoe, Highland Park, Winnetka, and Kenilworth have extensive ravine systems draining to Lake Michigan. Trees on ravine properties face slope instability, erosion, and unique microclimate conditions — cooler temperatures, more moisture, and different wind exposure than upland properties. Managing trees on ravines requires understanding how tree removal or decline on a slope can accelerate erosion and potentially affect neighboring properties and infrastructure. We develop management plans that balance individual tree decisions with the stability and ecology of the broader ravine system.
Lake Effect and Lakeshore Exposure
Properties close to Lake Michigan experience salt spray, sustained wind exposure, and temperature swings that stress trees differently than inland sites. Lakeshore trees often develop asymmetric crowns from prevailing winds, and species selection for new plantings must account for salt tolerance and wind resistance. We see accelerated decline in salt-sensitive species like sugar maples on lakefront properties, and recommend transitional planting with species like swamp white oak, Kentucky coffeetree, and bald cypress that handle these conditions better.
Heritage and Specimen Tree Management
The North Shore has a concentration of large, old-growth-quality trees that don't exist in most suburban settings. Bur oaks and white oaks with trunks over 36 inches DBH, 150+ year old specimens that predate the communities around them — these trees require a different level of care than typical landscape trees. Our approach to heritage trees emphasizes preservation through proactive health management, structural support, root zone protection, and regular professional monitoring rather than reactive intervention after problems develop.
Construction Pressure
New construction, major renovations, and pool/hardscape additions are constant across the North Shore. Lake Forest's tree preservation ordinance requires permits for tree removal on both public and private property, with replacement planting requirements. Highland Park and Glencoe have similar protections. We work with homeowners, architects, and builders on pre-construction tree assessments that identify which trees can realistically be preserved, what protection measures are needed, and where new trees should be planted to replace any losses.
Oak Wilt Awareness
While oak wilt has not been confirmed as widespread in the immediate North Shore area, it has been identified in parts of northern Illinois and is a serious concern for the region's oak-dominated canopy. We monitor for oak wilt symptoms — rapid wilting and browning of leaves starting at the margins, progressing inward, particularly in red oak group species — and follow best practices for pruning timing to minimize disease transmission risk. We avoid pruning oaks during the high-risk period (April through July) when the beetle vectors are most active.
Local Tree Ordinances: North Shore Communities
Lake Forest
Lake Forest maintains a comprehensive tree preservation ordinance covering both public and private property. Permits are required for removal of trees on private property above certain size thresholds, and replacement trees must be planted. The city employs a professional city forester who oversees parkway and public tree management.
Highland Park
Highland Park's tree preservation ordinance protects significant trees and requires permits for removal. The city's forestry division manages parkway trees and enforces canopy preservation requirements during development.
Glencoe
Glencoe's regulations protect parkway trees and significant private trees, with particular attention to ravine areas where tree removal can affect slope stability and neighboring properties.
Winnetka
Winnetka requires permits for parkway tree work and has preservation requirements tied to building permits and development activity.
Wilmette's Tree Preservation Requirements
Wilmette has one of the most comprehensive tree preservation programs on the North Shore, backed by its 39+ years as a Tree City USA community and recognition as an Arbor Day Foundation Sterling Community. The village requires a Tree Removal Permit for any tree 6 inches DBH or greater on private property — one of the lower thresholds in the area, meaning most mature trees on your lot are protected. Oaks and hickories over 10 inches DBH and any tree over 20 inches DBH are classified as Heritage Trees and may require a Zoning Board of Appeals variation before removal can be permitted. During construction, the village requires tree protection fencing at a rate of 1 foot of protection for every 1 inch of trunk diameter, and the entire parkway must be fenced regardless of whether trees are present. The Village Forester reviews all removal applications on-site, and replacement planting is required when healthy trees are removed. These regulations make it especially important to have a certified arborist involved early in any construction or renovation project in Wilmette.
Lake County (Heritage Trees)
Properties in Lake County communities are subject to heritage tree protections — any tree with a DBH of 25 inches or greater is classified as a heritage tree with additional permit requirements for removal.
We navigate these requirements as part of our standard service and advise you on permit needs before any work begins.
Our Services on the North Shore
Heritage Tree Management
Comprehensive care programs for large, significant trees — including annual health assessments, targeted PHC treatments, structural pruning, cabling systems, and root zone management. Designed to extend the productive life of irreplaceable specimens.
Tree Pruning
ANSI A300-compliant pruning for structure, safety, health, and aesthetics. We develop multi-year pruning cycles that maintain your trees' form without overpruning in any single season.
Tree Risk Assessment (TRAQ)
Formal assessments using ISA's standardized methodology — especially important for large trees near homes, pool areas, outdoor living spaces, and property lines. We provide written reports suitable for insurance documentation and real estate transactions.
Plant Health Care
Customized treatment programs addressing pest management, disease control, soil health, and nutritional deficiencies. Our PHC subscription programs provide proactive, season-by-season care that catches problems early.
Construction Consulting
Pre-construction tree inventories, preservation plans, TPZ installation, and construction-phase monitoring. We work with architects, landscape architects, and builders to integrate tree preservation into project planning from the start.
Tree Removal
When removal is necessary, we execute with the precision and care that North Shore properties require — protecting surrounding trees, landscaping, hardscape, and structures throughout the process.
Air Spade Services
Root zone investigation and remediation for trees showing signs of decline. Non-invasive excavation allows us to diagnose root problems, remove girdling roots, correct buried root flares, and improve soil conditions without damaging the root system.
Tree Planting
Proper species selection for North Shore conditions, sourced from regional nurseries. We consider soil type, drainage, exposure, available growing space, and long-term mature size in every planting recommendation.
Call 773-599-3335 | Request a Consultation Online
Frequently Asked Questions — North Shore Tree Care
We're planning a major renovation and our architect says we need a tree survey. What does that involve?
A pre-construction tree survey involves inventorying every tree on the property above a minimum size threshold (usually 6" DBH), recording species, size, condition, and structural assessment for each tree, identifying which trees conflict with the proposed construction and which can realistically be preserved, establishing Tree Protection Zones with specific fencing and signage requirements, and producing a written report with recommendations. This report becomes part of your permit application in communities like Lake Forest and Highland Park. We coordinate directly with your architect and builder to ensure tree protection is integrated into the construction plan, not treated as an afterthought.
We have a massive oak that's been here longer than the house. How do we take care of it?
A heritage-quality oak deserves a proactive management plan, not just reactive care when something goes wrong. We'd start with a thorough assessment of the tree's health, structure, and root zone conditions. From there, a typical management plan includes annual or biennial inspection and health monitoring, targeted pruning on a 3-5 year cycle to manage deadwood and structural issues, root zone management including soil testing, mulch ring maintenance, and air spade work if compaction or grade changes are affecting roots, and pest and disease monitoring with treatment as needed. Think of it like preventive medicine — ongoing, professional attention that catches problems early and keeps the tree thriving for decades to come.
What's the difference between you and the larger tree care companies on the North Shore?
The larger firms (Davey, Winkler, Hendricksen, SavATree) are fine companies. The difference is access and continuity. When you work with Prairie Tree Care, your trees are assessed by the same ISA Certified Arborist every time — not a rotating sales arborist who may or may not be on staff next year. I personally evaluate your trees, develop your care plan, and oversee the work. For high-value properties where the trees represent significant financial and aesthetic investment, that continuity matters.
Is there a best time of year to prune our trees?
It depends on the species and the goal. For most deciduous trees, late winter through early spring (before bud break) and mid-summer (after full leaf expansion) are optimal pruning windows. We avoid pruning oaks during the high-risk period for oak wilt transmission (roughly April through July in our area). Dead, damaged, or hazardous branches can and should be removed at any time of year. We'll recommend the best timing for your specific trees when we develop your pruning plan.
Why North Shore Homeowners Choose Prairie Tree Care
Your trees are among the most valuable assets on your property. They deserve care from a certified professional who treats every tree as an individual, understands the unique conditions of your community, and is accountable for the results. Prairie Tree Care brings ISA Certified Arborist credentials (IL-10149A), Tree Risk Assessment Qualification (TRAQ), and Certified Treecare Safety Professional (CTSP) certification to every job on the North Shore.
Call 773-599-3335 or request a consultation online to schedule a consultation.
Prairie Tree Care serves homeowners and property managers throughout Winnetka, Glencoe, Highland Park, Lake Forest, Glenview, Northbrook, Deerfield, Wilmette, and Kenilworth. ISA Certified Arborist IL-10149A | TRAQ | CTSP | TCIA Member | Illinois Arborist Association Member | Licensed & Fully Insured
