Mold testers charge anywhere from $300 to $10,000. And the least expensive competent testers will charge around $700 to $1,000. 

In its 2019 Buying Guide, Angie’s List reported the average national price for mold testing was $644. Mold testers generally charge a base fee for a limited inspection (they just look at the areas the homeowner flags) or a full inspection (they go through the whole house). Some testers include testing the air for mold in 1 to 2 rooms in their base fee, while others don’t.

Yet ALL testers charge $50 to $100 for each additional room you want to have the airborne mold spore count checked. That’s when the process starts costing you BIG bucks. Since the average 3-bed, 2-bath home has 10 rooms, you’re looking at an additional $500 to $1,000!

And make no mistake: It’s essential to get the air in your whole home tested. Testing is only worth doing if you know the full picture. Otherwise, you won’t know the true scope of how much mold you’re being exposed to.

The legwork after your appointment also adds to your fees. Why? The tester has to take time to fill out lab forms, put the samples in a box, make a trip to the post office, pay postage fees, and pay the lab-analysis fees. 

Long story short…

Due to all this overhead, mold testers must markup their prices substantially and charge homeowners like you a pretty penny to cover the expenses.