Duncan & Sons’ shares its commitment to going above and beyond for both clients and staff.
By Dylan Balle | Photography by Nathan Sparks
Appeared in Cityview Magazine, Vol. 41, Issue 6 (Nov/Dec 2025)
Quality cleaning isn’t something you encounter every day—unless you’re part of the team at Duncan & Sons’ Building Maintenance. For this Knoxville-based company, going the extra mile to serve the customer and create lasting partnerships is the core of who they are. Their pride comes from doing the job right, and doing it with integrity.
Growth with Purpose
Last year, Clean Team Inc. joined forces with Duncan & Sons’. While the Duncan & Sons’ name remains, Clean Team’s ownership marks a new chapter for the company’s continued success. Together, they celebrate winning Gold in Office Cleaning Service in Cityview’s Best of the Best for 2025.
Duncan & Sons’ has supported Clean Team’s expansion into Tennessee, opening new doors of opportunity for both customers and employees. “The caring relationships built with both employees and customers is amazing,” says Jim Armbruster, VP of Sales. “We treat customers and team members the way we want to be treated—and that’s how we retain our staff, our clients, and grow year after year.”
High Standards, High Quality
Founded in 1989, Duncan & Sons’ has spent decades refining its commitment to excellence. That dedication has only grown under Clean Team’s leadership. The team stays at the forefront of East Tennessee’s commercial cleaning industry, always seeking better ways to serve clients.
“We are proud to offer space vacuum services, enabling us to clean and maintain even the highest and hardest-to-reach areas,” says Sheri Henegar, President of Duncan & Sons’. “We recognized the need among our clients, and we made it happen to ensure we continue delivering the highest level of service.”
The company serves medical facilities, multi-tenant buildings, churches, schools, manufacturing facilities, and more. Their extensive services include:
- Janitorial services
- Hard-surface floor care
- Commercial carpet cleaning
- Sanitation and disinfection
- High bay cleaning
- Comprehensive building maintenance
Reliable, Honest, and Here to Stay
Duncan & Sons’ is dedicated to delivering the cleanest buildings possible, driven by reliability, care, and integrity. The company has spent decades building relationships rooted in trust—and those relationships are what set them apart.
If you want a team that treats your business like their own, Duncan & Sons’ is ready to help.
Comments are closed.