Consult
Walk the site
Vision, scope, and budget — construction, NanaWall, design, or all three.
About
One family team from slab to sofa
Tim and Sarah Jahnke run Jahnke Construction and Design together — he builds it, she finishes it, and neither hands off to someone else.
Construction
Tim Jahnke
Tim brings decades of hands-on residential construction to every job site — structurally sound, weather-tight, and finished clean. As a certified NanaWall installer, he handles the full build from foundation through glass wall systems.
Custom homes, lakeside renovations, structural openings for folding glass walls, composite decks, covered porches, and full exterior remodels.
- Custom homes & major renovations
- Decks, porches & outdoor structures
- Exterior remodeling & siding
- Certified NanaWall installation
Interior design
Sarah Jahnke
Sarah handles the interior side from early planning through final styling — flooring, cabinetry, lighting, color, and furniture coordinated with the build schedule.
Spaces should feel lived-in, not staged. Her selections balance how a room looks with how a family actually uses it.
- Full-service interior design
- Material & finish selections
- Space planning & furnishings
- Indoor-outdoor coordination
Process
How a project moves
A real sequence — consult, plan, build, deliver — not decoration.
Plan
Lock the details
Tim coordinates structural plans and timelines while Sarah locks in finishes.
Build
On-site craft
Regular updates, certified NanaWall installs handled in-house.
Deliver
Move in
Structurally sound, designed throughout, ready to live in.
Let's talk about your project
Construction, NanaWall, interior design — or the complete package.