We care about what happens after the technology disappears into the building.
The builder hands over the keys.
The integrator leaves a system carrying their reputation.
A family begins trusting the place around them.
LumenCache exists to make that building easier to create, easier to live with, and easier to care for over time.
Our mission
To create healthier, happier, more sustainable homes through technology that is simple to use, repairable, adaptable, and built for the long term.
Founder's Message
A fifteen-year foundation.
For nearly fifteen years, my team and I have pursued one idea with unusual patience: technology inside our buildings should make people feel safer, healthier, more comfortable, and less burdened by the world outside. ReNetA is the flagship result of that work: not the finish line, but the foundation on which LumenCache and its partners can continue building better solutions for shelter. Every creature seeks a place where it can finally lower its guard: a snail in its shell, a dog in its favorite safe place, a child in familiar arms. Even the strongest among us need somewhere that quietly says, “You're safe here. We've got your back.” A home should do that too.
That same idea of security applies to the people who build those homes. Builders make decisions measured in years and decades, not product-launch cycles. They invest in training, supply chains, construction methods, service relationships, and the trust of thousands of homeowners. LumenCache is being built with the same long-term perspective: strength before speed, stability before fast money. That means developing dependable production capacity, resilient supply chains, experienced people, continuously improving technology, long product lifecycles, and compatible paths forward when products eventually change. We want a builder who standardizes on ReNetA today to have confidence that LumenCache, the ecosystem, and a practical replacement path will still be there when that home needs us years from now.
ReNetA reflects that philosophy in the product itself. Its permanent infrastructure is designed to outlive the technologies connected to it; replaceable modules allow the system to evolve instead of forcing the building to start over. The extraordinary amount of engineering is intentional: builders should experience predictability, installers should experience simplicity, and homeowners should simply experience a home that takes better care of them. We are not trying to win a product cycle. We are trying to earn a place in the way good buildings are built for generations.
- Derek Cowburn

Long-term Promise
If you put your name on it, we put ours behind it.
Builders invest in training, supply chains, construction methods, and the trust of homeowners. Integrators invest in demonstrations, technician knowledge, client relationships, and years of service after the project is complete. Neither can afford a product company that treats the next launch as more important than the last installation.
That is why LumenCache is building dependable production capacity, resilient supply chains, experienced teams, continuously improving technology, long product lifecycles, and compatible replacements—so our partners can build on ReNetA with confidence.
Strength before speed. Stability before fast money.
The real people building it.
ReNetA is the product of engineers, manufacturing partners, builders, installers, designers, and customers who kept asking a better question:
How can sophisticated buildings become simpler for everyone?
Note: We actually work really long hours, but who wants to see boring photos or AI slop of generic "people working". Enjoy!
Derek Cowburn
Founder & CEO
Zach Bielak
Product Design & Tooling Engineer
David Cowburn
Field Engineer
Build something worth standing behind.
The open, modular ReNetA platform invites good products, good people, and good ideas at every level. Bring us the first project.
We will bring fifteen years of commitment to helping it succeed.
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