Kasteel Enterprises
Modern mountain home overlooking the North Georgia lakes

A family-run builder.
Twenty-one years and counting.

A family business
with family values.

Through wisdom a house is built, and by understanding it is established.
Lakefront custom home at dusk by Kasteel
Founded 2004 · Ellijay, Georgia

Kasteel Enterprises, Inc., started in 2004 by Chad and Tiffany Muilenburg, is a general contracting firm specializing in light commercial and custom residential construction. Headquartered in Ellijay, GA, Kasteel has earned a reputation for delivering projects throughout the Southeast of the highest quality, at a fair price, and in the shortest possible duration of time.

Kasteel's goal is in building good, strong relationships, which translates into projects that run smoothly and customers whose expectations have been exceeded. Our commitment to excellence has established a strong repeat client base and referral network.

Founders

The Muilenburg Family

Chad Muilenburg

Founder & President

Chad Muilenburg

Auburn University · BS Building Construction (1992)

Chad founded Kasteel in 2004 to bring back the kind of integrity and craftsmanship that had quietly disappeared from contemporary construction. Auburn graduate, Cliff Hare Award recipient, captain of the Auburn football team.

Excels in: client relationships, project oversight, line-itemed bidding, leading a job site.

Why it matters: Chad personally walks every project. The Kasteel standard isn't a slogan it's the bar he sets in person, on site.

Co-Founder & Operations Director

Tiffany Muilenburg

Auburn University · BA Foreign Language & International Trade (1993)

Tiffany co-founded Kasteel and runs the entire back of the house accounting, compliance, insurance, HR. Detail-oriented, people-first, the reason every client feels heard.

Excels in: operations, vendor relationships, client communication, keeping a project organized end to end.

Why it matters: A great build needs a great backbone. Tiffany makes sure nothing falls through the cracks invoices, schedules, paperwork, all of it.

Tiffany Muilenburg

Our Process

How We Work

Each Kasteel project is supervised by a professional Superintendent who oversees all aspects of work, ensuring that the quality of craftsmanship and a safe working environment is maintained from start to finish.

Weekly client meetings at the jobsite keep the project on schedule, ensuring that any and all construction modifications are identified and addressed both timely and cost effectively.

Weekly meeting reports, including progress photos and construction updates, keep everyone current and fully informed.

Effective client/builder communication is critical to a successful project.

The People on Your Job Site

Tayler keeps the Kasteel office running the calendar, the documents, the day-to-day client communication.

Why it matters: Fast answers. Nothing forgotten. The first voice you'll hear when you call.

Excels in: framing, finish carpentry, complex site logistics. Decades of hands-on construction.

Why it matters: When Heath runs a job site, the trades fall in line. Quality and safety are non-negotiable.

Excels in: schedule management, sub coordination, holding the line on quality.

Why it matters: Dillon is the reason your project hits its dates. Calm, thorough, no fire drills.

Excels in: high-end residential, sub management, materials sourcing.

Why it matters: Chris brings the kind of professionalism clients expect when they're trusting a builder with their home.

Excels in: spec adherence, trade coordination, finish details.

Why it matters: Chris executes the spec. What's drawn is what gets built no compromise on the details.

Aaric carries the next generation of the Kasteel family standard.

Why it matters: A family business stays a family business when the next generation cares as much as the last.

01

Listen first

Site, lifestyle, family, the way you want a Tuesday morning to feel. The build serves the life not the other way around.

02

Show our work

Itemized bids, weekly photo reports, real-time access to your superintendent. You'll never wonder what's happening on site.

03

Stay after handover

The relationship outlasts the build. Most clients come back for the next one a guest cottage, a lake place, a friend who saw the work.