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Garrett McInnis, owner of High Line Builders, a contractor and carpenter serving Lake County, Illinois.

Garrett McInnis | High Line Builders

October 01, 2026•3 min read

About Garrett McInnis

Garrett McInnis is the owner and founder of High Line Builders, a contracting, carpentry, and building company serving Lake County, Illinois. He started as a professional carpenter and grew into contracting, and he still works on the job site alongside his crew.

Garrett serves homeowners and builders who want quality work from someone who understands how it's supposed to look, not just how to organize it. He runs his company by scripture and believes good work is the result of taking care of the people doing it.

Garrett has been a guest on the Brotherhood Beyond Business Podcast, where he discussed contracting, faith, integrity in business, balancing work and family, and building a company people can trust.

Ep 49 | Building with Integrity, Faith, and Trust with Garrett McInnis

Expertise & Professional Focus

Garrett's work covers three areas: contractor, carpenter, and builder. High Line Builders manages remodels and subcontracted projects, supplies carpenter labor for decks and trim work, and builds full homes.

What sets him apart is how hands-on he is. Garrett came up doing the physical work before he became a contractor. He can meet with a client to lay out the order of operations for a house, then be on site the next morning setting trusses.

His experience is especially valuable for homeowners planning larger projects and builders who need reliable carpentry crews.

Building a Business in Lake County, Illinois

Garrett built High Line Builders in Lake County, where he lives and works. The company is about three years old as an LLC, and he has been doing carpentry work since high school.

The company operates on cash and avoids loans, which keeps growth steady. Even so, sales roughly quadrupled from one year to the next. Garrett now leads a small crew and is learning what it takes to work on the business, not just in it.

His long-term goals are to build spec homes and eventually launch a natural disaster response team, Highline NDRT, that could send skilled crews and equipment to communities in need.

Philosophy & Approach

Garrett believes a contractor's job is to provide a service, and that means telling clients the truth. He has turned down projects he didn't believe in, including a basement finish in a home with foundation problems, because he didn't want to leave the homeowner worse off.

The business is guided by scripture: honest work, honest communication, quality craftsmanship, and a clean job site. Garrett doesn't use that as a marketing angle. It's how he operates, whether it wins the job or costs him one.

His goal is trust. He wants clients to say, "We trust him," and he believes that comes from focusing on the people doing the work first. The product follows.

About High Line Builders

High Line Builders is a contractor, carpenter, and builder serving Lake County, Illinois. The company handles remodels, decks, trim work, and full home builds, and it supplies skilled carpenter labor for larger projects.

The team is built around honesty, quality work, and doing right by the client. Garrett is on the job site, and the crew is held to the same standard whether he's there or not.

⮞ Website: https://www.highlinebuildersllc.com

⮞ Facebook: https://www.facebook.com/people/High-Line-Builders-LLC/61552559692054/

⮞ Garrett McInnis Profile: https://brotherhoodbeyondbusiness.com/post/garrett-mcinnis


Trev Warnke

Trev Warnke

Trev Warnke is the founder of Brotherhood Beyond Business, a men’s mastermind built to help entrepreneurs become the CEOs of their own lives. A lifelong entrepreneur himself, Trev knows the weight of leadership—and he’s passionate about making sure men don’t feel lonely at the top. Through his writing, coaching, and Brotherhood groups, Trev equips men to thrive in the 10 Domains of Life—from Physical Dominance and Mental Fortitude to Family Leadership and Wealth Ascendancy. His mission is simple: to help entrepreneurial men stop carrying it all alone and start building the life they actually want. When he’s not leading Brotherhood circles, Trev enjoys life with his wife Erica, their dog Duke, and adventure-filled experiences that sharpen both body and spirit.

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