Your biggest health decision is your home
Learn how healthy your home really is. Enter your address and we generate a data-backed Nestwell Score in seconds, then test what matters and fix it, all from one place.
How it works
3 steps to a healthier home
- 01
Get an instant Nestwell Score
Enter your address, and we generate a data-backed home health report with your areas of concern and a personalized action plan.
Allergies & asthmaMusty smellTrouble sleepingNew baby on the wayJust moved inFrequent headaches - 02
Test your home
We send lab-grade kits. You collect a sample, we handle the rest.
- Kit shipped to your door
- Sample collected & mailed
- Lab analysis underway
- Results in ~10 days
- 03
Fix what’s urgent
Personalized fixes, prioritized so you know what to do first, plus up to 20% off the products you need.
Fixes and member pricing come with Nestwell membershipWaterHighUnder-sink filter that cuts PFAS and leadAirHighHVAC filter swap and a bedroom purifierDaily habitsOngoingVentilate 10 minutes, track over time
Test kit bundles
Bundled for where you are
Curated kit sets for a life stage or concern. Add the whole set in one tap.
Nestwell helps with your home’s hidden risks
Tell us what’s going on and we will point you to the right test.
One dashboard for your whole home: water, air, dust, soil, radon, and mold, with the fixes that match.
More bestselling kits
Medical advisors
Built with leading medical experts
Dr. Malathi Srinivasan
Clinical Professor of Medicine, Primary Care and Population Health
Stanford University
Our physical and home environment is a direct determinant of our health. Small environmental changes make a big difference, especially in early childhood development and for vulnerable adults.
Dr. Mark Cullen
Former Senior Associate Dean for Research; Founding Director, Stanford Center for Population Sciences
Stanford University School of Medicine
After four decades studying the health effects of environmental exposures, I consider a safe living environment paramount to long-term health and well-being.
Dr. Lauren Eggert
Associate Professor of Medicine, Pulmonary, Critical Care, Allergy, and Sleep Medicine
UCSF
As a lung doctor, I see air pollution, both indoor and outdoor, as one of the greatest threats to respiratory health.
Talk to a testing expert
Coming soonNot sure what to test? Book a quick call.
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See all articles →Your top questions answered
How does an at-home test kit work?
You collect a sample at home following the included steps, mail it back with the prepaid label, and a certified lab analyzes it. Your results appear in your Nestwell dashboard, explained in plain language.
Which kit should I start with?
If you are not sure, get your free home score first. It looks at your address and a few questions, then recommends the kits that matter most for your home. Water is the most common starting point.
What do the results tell me?
Results describe what the lab measured in your water, air, or dust, compared against published guidance such as EPA limits. They screen your home environment and are not a medical diagnosis.
What happens after I get results?
Nestwell matches your results to specific fixes, such as the right water filter or air purifier, so you are not left guessing what to do next.
Nestwell kits screen your home environment. Results describe your water, air, or dust and are not a medical diagnosis.