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Plumb Line Design

Lighting Design That Shows You Exactly What You'll Get — Before It's Built

Plumb Line Design creates physics-based lighting renderings from your actual project models — using real fixture data, real geometry, and real materials. No guesswork. No surprises. Just confident decisions from design through commissioning.

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Lighting Designed to Elevate Your Vision

Wisner-Pilger Early Learning Center interior — linear lighting on corridor ceiling

Every space tells a story. The right lighting brings that story to life — guiding the eye, setting the mood, and making good architecture feel extraordinary.


Plumb Line Design is an architectural lighting design firm built on one principle: precision in service of beauty. We partner with architects, interior designers, engineering firms, and building owners to deliver lighting solutions that are technically rigorous and visually compelling.


Whether you need a collaborative design partner who thinks like a designer, a subcontracting team that delivers clean, stamped construction documents, or a trusted advisor who protects your investment through commissioning — we adapt to fit your workflow and strengthen your project.

Rendering from Wisner Pilger ELC project. Reference Portfolio page for further information.

Why Architects, Engineers, and Owners Choose Plumb Line Design

Physics-Based Renderings


See your lighting design in accurate detail — built from your actual Revit or SketchUp model with real manufacturer .ies data. Included with every project.

Full Spectrum Service


From concept through commissioning — lighting design, controls, emergency, circuiting, and construction administration. One team, one point of accountability.

PE + LC + Design IALD


A rare combination of professional engineering, lighting certification, and IALD design membership. Technical depth and design sensibility in one firm.

On Time, Every Time


We stand behind our deadlines. If we miss a committed milestone, your fee is reduced by 10%. That’s how seriously we take your schedule.

Selected Projects

A sampling of work spanning corporate headquarters, cultural institutions, hospitality, and educational facilities.

Dormie Club Clubhouse*

Pinehurst, NC | Hospitality

Dormie Clubhouse bar - Home page

Bellevue Public Library*

Bellevue, NE | Civic

Bellevue Public Library reading nook - Home page
Bellevue Public Library rings - Home page

Carson Wealth Conference Room*
Omaha, NE | Workspace

Carson Wealth lit ceiling - Home page

Triage Staffing HQ*

Omaha, NE | Workspace

Triage core wall - Home page
Triage training area - Home page

*Project completed by David Repair while serving as lead lighting designer at a previous firm

View All Projects

Ready to See the Difference?

Whether you're an architect exploring a lighting concept, an engineering firm looking for a reliable subconsultant, or a building owner who wants lighting that performs for your people and your budget, we'd like to hear about your project.

Let's Talk About Your Project