Understand what's really in your home — and what to do about it.
Lab-backed answers for moms, homeowners, and anyone who's tired of
guessing. Search by your situation, your concern, or what's on your mind.
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What's going on in your home?
Most testing companies make you guess what to buy. Tell us what's happening — we'll point you to the right answers.
Preparing the nursery
What to test before bringing baby home — water, air, paint, dust.
Buying or selling a home
What inspectors miss, and what to test before you sign.
Had a leak or flood
Mold timelines, drying decisions, and when to test surfaces vs. air.
I have a private well
Annual testing schedule, what to look for, and treatment basics.
Browse by Contaminant
The science, simplified
Click any contaminant to learn where it comes from, why it matters, and how we test for it.
Pb
Lead
HEAVY METAL
VOC
Organic Compound
AIR & WATER
Rn
Radon
GAS
As
Arsenic
HEAVY METAL
NO₃
Nitrates
AGRICULTURAL
Asb
Asbestos
MINERAL FIBER
PFAS
Forever Chemicals
SYNTHETIC
M
Mold
BIOLOGICAL
E.c
E. coli
BACTERIA
Featured Guide • 12 min read
The Complete Guide to Testing Your Home Water
Everything you need to know — from what's actually in your tap to how labs detect contaminants at parts-per-billion levels. Written for parents, not chemists.
WHAT'S INSIDE
01
Why your water might not be what you think
02
City vs. well water: different risks
03
City vs. well water: different risks
04
City vs. well water: different risks
05
How to read your lab report
06
Choosing the right filtration