About us

A family legacy of building at the lake

35+ years of construction in Eldon and Lake of the Ozarks — now led by the second generation.

With over 35 years of dedicated service to the Lake of the Ozarks community, 3 Keys Construction has built a legacy of excellence in construction and outdoor living. Keith Knamiller founded the company with a vision to transform spaces and enhance lives; today his sons carry on the family tradition of craftsmanship and customer service.

We're not just builders — we create spaces that bring families together and make homes and businesses more beautiful and functional. Our work spans interior renovations, structural improvements, exterior enhancements and complete outdoor transformations for residential and commercial clients.

Custom decks and outdoor living are our specialty: from a cozy coffee deck to an expansive entertaining area with an outdoor kitchen, pergola and fire feature that blends indoor and outdoor living.

Our approach is simple: understand your needs, exceed expectations and make sure you're satisfied from start to finish — using quality materials, current design and the highest standards of craftsmanship.

Keygan and Keyton Knamiller, co-owners of 3 Keys Construction, on a framing job site
The second generation on the job

The team

Meet the owners

Portrait of Keygan Knamiller, Co-Owner of 3 Keys Construction

Keygan Knamiller

Co-Owner

Portrait of Keyton Knamiller, Co-Owner of 3 Keys Construction

Keyton Knamiller

Co-Owner

Keith Knamiller

Founder

Started 3 Keys Construction and built its reputation for honest, quality work across Lake of the Ozarks before handing the keys to the next generation.

Why choose us

What you can count on

Experienced craftsmen
Skilled professionals who bring precision and care to every project.
Quality materials
Durable, low-maintenance materials chosen for the lake environment.
Custom designs
Every project is tailored to your vision, property and budget.
Transparent pricing
Clear, upfront estimates without hidden fees.
Satisfaction guarantee
Workmanship and materials warranty, plus manufacturer warranties.

Free estimate

Work with the Knamiller family

Tell us a little about your project and an owner will reach out to set up a free consultation.

  • Free on-site consultation and written estimate
  • Family-owned and owner-led, start to finish
  • BBB Accredited Business with an A+ rating

Prefer to talk it through?

(573) 434-2996

Monday – Friday 7:00 am – 7:00 pm · Saturday 7:00 am – 12:00 pm

Call (573) 434-2996