For Homeowners
Start Where You Are
Homeowners arrive here in one of two situations. Either a building is already making you sick and you need to act, or you are planning a new home and want to build it right the first time. The two paths below are written for those very different moments — pick the one that fits.
Managing illness in a building that is making you sick
A calm, ordered path: what to observe first, what to remediate, and how to remodel without worsening symptoms.
Building new from the ground up
For the planning stage: how to choose a build option, screen contractors, and bring the standard into the contract.
If you are not sure which applies, start with managing illness — it is the more urgent path, and its first steps (find the moisture, lower the chemical load) are good practice for any home.
Last reviewed: August 2026