Service Is at the Heart of Everything We Do
Diakonos was built on a simple belief: buildings don’t just need cleaning, they need care. Our work is about more than tasks on a checklist - it’s about showing up with integrity, taking ownership, and serving people well.
What “Diakonos” Means
Our name comes from the Greek word for “servant.” That word defines how we show up - for our clients, our team, and our community.
Diakonos was founded in Knoxville with a clear purpose: to raise the standard of building maintenance by putting people first. We believe facilities run better when care, reliability, and integrity are non-negotiables. From offices and schools to industrial spaces, we serve with the mindset that every job is an opportunity to do what’s right.
Honest Work. Reliable People. Real Care.
When you choose Diakonos, you get more than a vendor - you get a team that stands by its word. We show up when we say we will, follow through on every detail, and treat your space like it’s our own. Our promise is simple:
Show up on time.
Do the work right.
Own mistakes and fix them fast.
Put people before shortcuts.
The way we show up every day
At Diakonos, our work is guided by a few simple principles. They shape every decision, every service, and every relationship we build.
Do what’s right – always
Honesty and quality over shortcuts, even when no one’s looking.
Own it
We keep our word, show up on time, and fix anything that isn’t right - fast.
Serve like it’s our own
Your building gets the same care we’d give our own family’s place.
Be there when you need us
Local, reachable, and quick to respond - no call centers, just Knoxville people who care.
Our team
Meet the people behind Diakonos Building Maintenance
What people are saying
See our reviews & testimonials
Diakonos cleaned a construction cleanup for my business. The team did an incredibly detailed job that was reflective of the quote and accurate to what they said they could do. Can’t recommend them highly enough and will definitely be calling them again!
Very friendly receptionist!
I’ve known Luke for many years. He is a man of integrity and an exceptional Christian businessman. He will get the job done for you and do it well! Don’t hesitate to have him quote your job. He’s got a great team and is truly gifted in the area of service.
I’ve been a customer of Luke’s for many years, and he has always operated with fairness and integrity. He’s attentive to customer needs and consistently follows up quickly whenever questions or concerns arise. A dependable and trustworthy professional - highly recommend his janitorial services.
Luke Duncan is building an incredible janitorial business here in Knoxville. He's been in the industry for over a decade, he cares about people and treating folks right, and he's as honest as they come. I highly recommend Diakonos for all your janitorial and building maintenance needs.
Ready for a facility that always feels clean, safe, and taken care of?
Reliable janitorial and building maintenance from a local Knoxville team you’ll actually enjoy working with. Schedule your free walkthrough and custom quote - takes about 30 minutes, zero pressure.
