We ❤ Trees

We love taking care of your trees. The trees in your yard are just one part of a vast canopy spreading over the city of Madison and surrounding communities. By maintaining your piece of the urban forest, you help create a greener, healthier, and more beautiful place for all of us to live.

We are Madison, WI arborists passionate about coming up with the best solutions and ideas to help you maintain the trees in your landscape. Whether you want to plant a new seedling, train a young flowering crabapple, or a provide support to a hundred-year-old white oak, we can help you determine the best approach for helping your landscape flourish.

We’d love to come out to your house or business to meet with you and talk more about your trees. Please schedule a free consultation.  We strive to be the friendliest and most helpful arborists in Madison, Wisconsin!

 

Heartwood Partners

Mark and Brent started HTC after several years of friendship and work collaborating in landscaping and tree care. We both love being active contributors to the long-term health and vibrancy of the urban forest. We take pride in doing what is best for the customer and the trees alike. As owners and certified arborists, at least one (but usually both) of us will always be either in your trees or on the ground ensuring the work is completed to our high standards.

Mark Sundlin, a Madison area arborist and co-owner of Heartwood Tree Co.

Mark Sundlin

Certified Arborist WI 0713A
608.443.6037

Mark is a certified Madison arborist with eleven years service in the tree care industry as a lead climber and crew supervisor. He has always had an affinity for trees – from admiring the mature trees in his parents’ backyard to enjoying the shady and leafy streets of Minneapolis and Madison. When not in a tree Mark can be found working in his home garden with his wife, biking around town, on travel adventures near and far, and gazing up at beautiful, mature trees everywhere.

 

Brent Valentine

Certified Arborist WI 0805A
608.520.5985

Brent is a certified Madison arborist with 18 years of experience in the landscaping and tree care industries. Since high school he has pruned everything from small rose bushes to mature oaks. His favorite shrub/small tree is a serviceberry (great berries and fall color) and his favorite tree by far is the American beech. He and his grandfather used to collect and eat beech nuts in-between farm tasks as a child near Green Bay. These strong lifelong connections to the forest continue today in his more urban life, feeding his need to be outside getting dirty.

Brent Valentine, a Madison arborist and co-owner of Heartwood Tree Company.
 
Arborist Garrett Hughes

Arborist Garrett Hughes

Garrett Hughes

Certified Arborist WI-0710A
608.335.2275

Garrett is a certified Madison arborist with 13 years of experience within the tree care industry. Born and raised in Madison, he developed his love of the outdoors at a very young age. Whether it is was climbing the old crabapple tree in the backyard, or annual canoe trips to The Boundary Waters, he learned the importance of pursuing deep physical connections to the natural world. The field of arboriculture has allowed him to turn these interests into a career, and he is excited to share his passions and knowledge with customers and coworkers alike. 

 

Madison Arborist Team

Arborist Tim Kuhn

Arborist Tim Kuhn

Tim Kuhn

My interest in trees started as a boy because I loved climbing. As I grew up and became an outdoor enthusiast, I jumped at the opportunity to work with one of my best friends, arborist Brent Valentine. After two years now at Heartwood, Brent and Mark have taught me the importance and many benefits of proper tree maintenance.  As a part time stay at home dad, Heartwood has given me the opportunity for interesting work while maintaining my family life.

 
Arborist Alex Diederich

Arborist Alex Diederich

Alex Diederich

I hail from Colorado, where I enjoyed sundering in wilderness areas and climbing the high peaks of the Rocky Mountains. Land stewardship has always been close to my heart, and my love for the natural world has lead me to work with Heartwood Tree Company. Aldo Leopold once said, “A thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community. It is wrong when it tends otherwise.” I am proud to be a part of a company like Heartwood that embodies this belief, and I enjoy helping the Madison community become more resilient and retain its natural beauty.

 
Arborist Tyler Byrnes

Arborist Tyler Byrnes

Tyler Byrnes

I'm new to tree work, but I've always had a strong connection to trees.  When I was a kid my mom would often find me up a tree, reading a book.  I spent many hours splitting, stacking and hauling firewood with my grandparents.  Heartwood has given me the opportunity to reconnect with this passion and learn about proper tree care.

 
 
 
Arborist Keith Phelps

Arborist Keith Phelps

Keith Phelps

My interest in trees began in northern Minnesota while exploring the Superior National Forest and Boundary Waters at a young age. After graduating UW Madison, I worked with Heartwood before I began to work in Ecological Restoration in the Driftless Area. I am proud to be in a work environment that puts a strong emphasis on sustainability, safety and an overall love of the natural world. My two favorite native Wisconsin tree species are beech and the Kentucky coffee tree. 

 
Arborist Aaron Suiter

Arborist Aaron Suiter

Aaron Suiter

I’ve loved trees since I was a boy, scoping out the best branches to scale in my neighborhood. Climbing those big trees was fun, but the miniature trees on display at the Chicago Botanic Garden fascinated me. At age 12, my mom enrolled me in bonsai classes, where I was conspicuously out of place. From there began my interest in all things horticultural—from rose gardening to vegetable gardening to prairie restoration. After earning a BA in mathematics, I managed my college’s organic farm and then spent a couple years studying pottery In Montana. I’m excited to be part of the Heartwood team, where I’m able to combine my interests in horticulture and design to keep our clients’ trees healthy and beautiful.

 
Arborist Wade Dittburner

Arborist Wade Dittburner

Wade Dittburner

Coming from a long lineage of Wisconsin farmers, I learned a love for the land and pride in my hands' work at an early age. Though I was born a flatlander, I’ve always felt the urge to get my feet off the ground. Climbing rock, ice, and now trees, has led me to many places and  people that have taught me much. The two - land and people - aren’t all that different: care for them, and they will care for you. Working with Heartwood allows me to care for the things I love with the most precision and competence possible. 
 

 
Arborist Colton Hansberry

Arborist Colton Hansberry

Colton Hansberry

While I have always had a love for the outdoors, my strong interest in the field of arboriculture began a year and a half ago when I started working for a small tree service in Shopiere, WI. I believe we should be good stewards of the land provided to us, and the work I do with Heartwood Tree Company is one of the ways I do my part each day. Tree care is in my blood; my great-grandfather was a tree climber in southern Wisconsin during the 50's and 60's. In addition to climbing trees, I also love spending time with my wife and young son.