# 3 Keys Construction > 3 Keys Construction is a family-owned general contractor in Eldon, Missouri, serving Lake of the Ozarks for 35+ years. Founded by Keith Knamiller and led today by his sons Keygan and Keyton Knamiller. BBB Accredited Business (A+). Builds custom decks and outdoor living spaces, remodels, additions, boathouses and commercial projects for residential and commercial clients. ## Key facts - Business name: 3 Keys Construction (legal: K&K Squared LLC; also: 3 Keys Construction & Maintenance, 3 Keys Construction LLC) - Address: 471 Highway W, Eldon, MO 65026 - Phone: (573) 434-2996 - Email: keyton@3keysconstruction.com - Hours: Monday – Friday 7:00 am – 7:00 pm; Saturday 7:00 am – 12:00 pm; Sunday Closed - Owners: Keygan Knamiller and Keyton Knamiller (co-owners); founder Keith Knamiller - Experience: 35+ years; 200+ projects completed - Service area: Eldon, Lake Ozark, Osage Beach, Camdenton, Sunrise Beach, Laurie, Gravois Mills, Versailles, Linn Creek, Village of Four Seasons, Rocky Mount, Brumley, Tuscumbia, Jefferson City; Miller County, Camden County, Morgan County, Cole County, Osage County, Maries County, Laclede County, Pulaski County, Dallas County, Phelps County, Polk County, Greene County, Missouri - Free estimates: yes - Permits: handled by 3 Keys Construction for clients - Warranty: workmanship and materials, plus manufacturer warranties ## Services - [Decks, Pergolas & Outdoor Living](https://3keysconstruction.com/our-services/decks-pergolas-outdoor-living/): 3 Keys Construction designs and builds custom decks, pergolas, covered patios, outdoor kitchens, fire pits and multi-level waterfront decks for homes around Lake of the Ozarks, using composite, cedar and treated lumber with cable or aluminum railing. - [General Construction & Remodeling](https://3keysconstruction.com/our-services/general-construction-remodeling/): 3 Keys Construction provides full-service remodeling in the Eldon and Lake of the Ozarks area, including kitchen and bathroom remodels, basement finishing, living-space renovations, flooring, painting and energy-efficient upgrades for homes and businesses. - [Additions & Expansions](https://3keysconstruction.com/our-services/additions-expansions/): 3 Keys Construction builds home and business additions around Lake of the Ozarks — bedrooms, bathrooms, garages, bonus rooms, lake house additions, boathouses and dock expansions — matched to the existing structure's style. - [Commercial Construction](https://3keysconstruction.com/our-services/commercial-construction/): 3 Keys Construction delivers commercial and light-industrial construction in central Missouri, including office, retail and tenant build-outs, interior finish-outs, steel buildings, warehouses and storage facilities. - [Repairs & Restorations](https://3keysconstruction.com/our-services/repairs-restorations/): 3 Keys Construction repairs and restores homes and businesses in the Lake of the Ozarks area, including storm and water damage repair, structural repairs, roofing, siding, deck repair and seasonal maintenance and inspections. - [Lighting & Fixtures](https://3keysconstruction.com/our-services/lighting-fixtures/): 3 Keys Construction installs interior and exterior lighting and fixtures — recessed, accent and landscape lighting, deck lighting, ceiling fans and energy-saving fixture upgrades — for homes and businesses around Lake of the Ozarks. ## Pages - [Home](https://3keysconstruction.com/) - [About the Knamiller family](https://3keysconstruction.com/about-us/) - [Project gallery](https://3keysconstruction.com/gallery/): 18 photos of completed projects - [Service area](https://3keysconstruction.com/service-area/) - [FAQ](https://3keysconstruction.com/faq/) - [Contact and free estimates](https://3keysconstruction.com/contact-us/) ## FAQ ### What types of construction projects does 3 Keys Construction handle? We offer comprehensive construction services, including home remodels, kitchen and bathroom renovations, additions, outdoor living spaces, decks, patios, commercial build-outs, repairs and more. ### Where is 3 Keys Construction located? Our office is at 471 Highway W, Eldon, MO 65026. We serve Eldon and the Lake of the Ozarks area, including Lake Ozark, Osage Beach, Camdenton, Sunrise Beach, Versailles and surrounding communities in central Missouri. ### Do you provide both residential and commercial construction? Yes. We work on residential homes, commercial buildings and specialty projects throughout the Eldon area and beyond. ### Who owns 3 Keys Construction? 3 Keys Construction was founded by Keith Knamiller and is now led by his sons, Keygan and Keyton Knamiller. It is a local, family-owned business with more than 35 years of service in the Lake of the Ozarks area. ### What is your process for a new construction or remodeling project? From consultation and custom design to permitting, construction and final walkthrough, our team manages every aspect to ensure quality and clear communication at each stage. ### Do I need permits for my project, and do you help with that? Most projects require permits, especially additions and exterior work. We handle the permitting process on your behalf to keep your project hassle-free and compliant. ### How long do typical construction projects take? Timelines vary by project scope, but we provide a detailed schedule during the planning phase and keep you updated throughout the process. ### What materials do you use? We source high-quality, durable materials tailored to your design goals, preferences and budget for both indoor and outdoor spaces. ### What kind of warranty do you offer? We stand behind our craftsmanship with a comprehensive warranty covering both workmanship and materials, plus any relevant manufacturer warranties. ### How do I maintain new additions or remodels? We provide maintenance guidelines for all completed work — interior upgrades and outdoor installations — so you can enjoy your investment for years to come. ### Do you offer free estimates? Yes. Call (573) 434-2996 or send a message through our contact page to schedule a free consultation and estimate. ### Is 3 Keys Construction BBB accredited? Yes. 3 Keys Construction is a BBB Accredited Business with an A+ rating, listed under Eldon, MO. ### What decking material is best for Lake of the Ozarks? Composite decking is the most popular choice at the lake because it resists moisture, fading and splinters with little maintenance. Cedar and pressure-treated lumber cost less up front but need regular sealing. We walk through the trade-offs on every estimate. ### Can you build a deck on a steep lakefront lot? Yes. Steep, wooded lakefront lots are a large share of our work. We engineer footings and framing for the slope and often design multi-level decks with stairs that follow the grade to the water. ### Do you build covered patios and pergolas? Yes. We build freestanding and attached pergolas, fully covered patios with wood ceilings, and gazebos, and we can add lighting and ceiling fans. ### Do you handle kitchen and bathroom remodels? Yes. Kitchen and bathroom remodels are core services, from vanity and fixture updates to full gut-and-rebuild projects with new layouts, tile and cabinetry. ### Do you coordinate electrical, plumbing and HVAC? Yes. We coordinate electrical, plumbing and HVAC work as part of the project so you are not managing separate trades. ### Can you remodel commercial spaces too? Yes. We remodel offices, retail spaces and other commercial interiors in addition to homes. ### Do you build boathouses and dock expansions? Yes. We build boathouses, add storage to existing boathouses and expand docks for Lake of the Ozarks waterfront homes. ### Will an addition match my existing home? That is the goal on every addition. We match rooflines, siding, trim and interior finishes so the new space looks original to the home. ### Do I need a permit for an addition? Almost always. We handle the permitting process for additions and exterior work as part of the project. ### What commercial projects do you take on? Office, retail and tenant build-outs, interior finish-outs, steel buildings, warehouses, storage facilities and small business facilities. ### Can you work around business hours? Yes. We schedule phases to limit disruption and keep your business operating during construction whenever possible. ### Do you repair storm and water damage? Yes. We repair storm and water damage to roofs, siding, decks and interiors, and handle structural repairs and reinforcement. ### Do you offer seasonal maintenance for lake homes? Yes. We provide seasonal maintenance and inspections for decks, roofs, siding and other exterior systems. ### Can you add lighting to a new deck? Yes. Step, post-cap and under-rail lighting are common add-ons to our deck and pergola projects.