FAMILY OWNED & OPERATED | LOCALLY LOVED SINCE 2013
#1 Trusted Tree Service in the St. Croix Valley & Western Wisconsin
★★★★★ 4.9 Stars (1077+ Local Reviews) | 100% Satisfaction Guarantree™
Experience our 5-star reputation for exceptional St. Croix Valley tree service: quality work, friendly service, transparent pricing, and meticulous cleanup from start to finish.
✓ Fully Licensed & Comprehensive Liability Coverage
✓ ISA-Aligned Arborist Standards
✓ Turf-Safe Tracked Machinery & Lawn Defense
✓ Guaranteed 100% Clean Site Completion
Owners Matt & Megan Lennon
SERVING THE ST. CROIX VALLEY & WESTERN WISCONSIN SINCE 2013
Looking for Expert Tree Care in the St. Croix Valley or Western Wisconsin?
OUR PROMISE TO YOU
The NWI Service Guarantree™
At NWI Tree Service, our Service Guarantree™ means you can expect nothing less than a completely stress-free experience and results that exceed your expectations.
OUR PROMISE TO YOU
The NWI Service Guarantree™
At NWI Tree Service, our Service Guarantree™ means you can expect nothing less than a completely stress-free experience and results that exceed your expectations.
Why Choose NWI for Your Next Tree Service or Landscaping Project?
Fast, Free, No Obligation Estimates by Experienced Arborists
Fast, Free, No Obligation Estimates by Experienced Arborists
Our tree service experts will treat you like family and provide you with a free quote that’s fair and transparent. We’ll explain what’s included, why, and how we’ll get the job done, safely, and carefully. You can count on it!
Easy, Onsite Quotes
Experienced, Friendly Staff
Fair, Transparent Pricing
NWI Tree Service’s 360° Sustainability Cycle
Remove, Replace, Restore
NWI implements a continuous 360° Sustainability Cycle to manage your landscape’s ecosystem. We execute this closed-loop process by safely removing compromised trees, thoughtfully replacing them with resilient species, and restoring the soil and surroundings to ensure a thriving, healthy environment for generations to come.
Tree Removal
Eliminate Hazards & Safely Remove Dead or Leaning Trees
Trust our team of arborists and technicians to safely remove trees of any size using advanced crane technology and precision rigging that protects your property. We handle everything from hazardous emergency takedowns to routine clearing, guaranteeing a spotless cleanup every time.
Tree Trimming
Clear Overgrowth, Protect Your Roof & Boost Curb Appeal
Enhance the beauty and longevity of your landscape with expert trimming that improves structure, air circulation, and sunlight penetration. Our arborists skillfully remove dead or hazardous branches to boost tree health and protect your property from potential storm damage.
Tree Planting
Add Shade, Privacy & Long-Term Property Value
We partner with Legacy-Trees™ to plant hardy, rapid-growth trees featuring robust root systems designed to thrive for generations. Our arborists offer flexible packages ranging from basic installation to comprehensive, long-term care that ensures your investment flourishes.
Stump Grinding
Remove Tripping Hazards, Stop Pests & Reclaim Your Lawn
Reclaim your landscape by permanently removing hazardous, unsightly stumps with our fast and environmentally friendly stump grinding services. We grind well below the surface to prevent regrowth and pest infestations, leaving your property safe, clean, and ready for new planting.
Plant Health Care
Diagnose & Treat Sick, Infested, or Struggling Trees
Protect your landscape investment with proactive plant health care plans designed to combat Emerald Ash Borer, Oak Wilt, and other regional threats. Our certified arborists use advanced diagnostics and targeted treatments—including trunk injections and seasonal monitoring—to keep your trees vibrant and disease-free.
Commercial & Municipal Tree Service
Mitigate Liability, Ensure Safety & Maintain an Inviting First Impression
Maintain a professional, safe, and inviting exterior for your business or municipality with our comprehensive commercial tree care solutions. Our fully bonded and insured team of arborists handles everything from large-scale lot clearing and routine maintenance to emergency storm response, ensuring your property always makes the right impression.
Customer Service
Workmanship
Innovation
Customer Service
Workmanship
Innovation
Our History
Building a Reputation for Hard Work & Exceptional Service
NWI Expert Insights
An Interesting Approach to Buckthorn Removal
"Prescribed grazing" using goats is gaining popularity as an eco-friendly way to manage invasive species when combined with more permanent buckthorn removal techniques.
Oak Tree Wilt: The Signs
Taking care of your trees during the hot summer months is an essential aspect of maintaining the overall health and longevity of your green giants. In this article, we provide summer tree care tips that focus particularly on Oak trees.
Are There Exploding Trees in Stillwater?
Is the "exploding tree" trend on Facebook real? Matt from NWI Tree Service breaks down the science of frost cracks in the St. Croix Valley and what to listen for.
Trusted Tree Removal in Stillwater with Crane
This tree removal in Stillwater demonstrates a crane-assisted tree removal performed by NWI Tree Service in Stillwater, MN on January 20, 2026. The objective was a zero-impact removal of a high-tonnage tree located in a tight-access residential zone behind a structural garage.
Job of the Month
A ‘Behind-the-Scenes’ Look at Overcoming Challenging Projects
When homeowners on the North Hill in Stillwater reached out about a 100-year-old Sugar Maple threatening their roof and power lines, we stepped in with our "Remove, Replace, Restore" pledge. Learn more about this complex job.
