What Does a Mold Inspection Cost in Spokane?

Our base inspection is $425 and includes one indoor air sample plus an outdoor control. Additional samples are $100 each. A typical three sample job lands around $525. That is the whole answer, and you should not have to fill out a form to get it.

The rest of this page explains what that money buys, what moves the number, what the cheaper advertised prices actually cover, and when the honest answer is that you should not pay for testing at all.

The full price list

No trip fee for Spokane, Spokane Valley, Liberty Lake, Cheney, Airway Heights, Deer Park, Mead, or the Kootenai County communities including Coeur d'Alene, Post Falls, Hayden, and Rathdrum.

VOC, formaldehyde, asbestos, and meth residue sampling are quoted per project, because lab fees for those methods vary considerably. You get a firm number before anything is scheduled.

What the $425 actually covers

People assume the money goes to the lab. Most of it does not.

On-site time. A typical residential inspection is one to two hours, three to four on larger or more complicated properties. That includes crawlspaces and attics, where the actual answer usually lives and where a fair amount of the work happens on hands and knees.

Diagnostic equipment and the training to use it. Pin and pinless moisture meters, an infrared camera, a borescope, a psychrometer, and a calibrated air sampling pump. The pump matters most, because a spore trap result is a concentration calculated from flow rate times time. If the pump has drifted and nobody checks it, the number on your report is confidently wrong. Calibration against a primary standard is an ongoing cost, not a one-time purchase.

Two laboratory analyses. Air samples go to an accredited lab for direct microscopic examination, charged per cassette.

The outdoor control. One of your two included samples is the outdoor baseline, and it is not optional on any job we do. Outdoor air always contains spores in numbers that swing enormously with season and weather. An indoor count of 900 spores per cubic meter means nothing until you know whether outdoor air that hour was 250 or 14,000. Reports that give you indoor numbers with no same-day outdoor control cannot be interpreted, and they get sold constantly.

Report writing. The largest hidden cost, and the thing price comparisons ignore. Assembling the lab data with the outdoor comparison alongside it, moisture readings with dry reference values next to them, thermal images with corroborating meter data, photographs tied to locations, and a written interpretation scoped clearly enough that a remediation contractor can bid it against the IICRC S520 standard without re-inspecting. That is several hours after the truck leaves.

Why some companies advertise $149

You will see $149 visual inspections in this market, and free ones. Both are honest offers as long as you know what they are.

A $149 visual inspection is a walkthrough and an opinion. Someone comes out, looks around, and tells you what they think. No laboratory analysis, because two lab samples alone cost a meaningful fraction of $149. Usually limited or no moisture mapping, no thermal imaging, no borescope, and no written technical report.

That is not worthless. If you have obvious growth and you want a professional to look at it and tell you roughly how big the problem is, $149 for an opinion may be a fine purchase. It is a different product, and it will not produce a document you can hand an insurer, a buyer, a landlord, or an attorney.

A free inspection is lead generation, and that is the important part. Companies offering free or near-free mold inspections almost always sell remediation. The inspection is a customer acquisition cost recovered on the back end. If the visit finds nothing, they lose money. If it finds a problem, they quote the cleanup.

Neither Washington nor Idaho licenses mold assessment, and neither prohibits one company from both assessing and remediating the same job. New York banned that arrangement under Labor Law Article 32. Here nothing stops it, which makes the structure legal, common, and entirely up to you to evaluate.

We are not saying those companies lie. We are saying that when the person deciding whether you have a problem is the person paid if the answer is yes, the incentive runs one direction, and good intent does not remove it. That is why we gave up the remediation revenue and take no referral fees. The inspection has to pay for itself, which is why it costs $425 instead of $149.

What actually changes the price

Square footage. Homes over 3,000 square feet are $550 to $650, because they take longer to walk and usually need more sample points.

Number of samples. Each sample past the included indoor sample and control is $100, covering the lab fee plus the added time on site and in the report.

How many distinct problem areas. One suspected wall in a bathroom is a different job from a basement, a crawlspace, and a second-floor bedroom with separate histories.

Access. A crawlspace with 30 inches of clearance and a clean entry is straightforward. One packed with stored material is not.

Turnaround. Standard lab is one to three business days with the report within a day of that, and it is included. Rush 24 hour lab is $100 more, a pass-through of what the lab charges. Most people do not need it. Inside a real estate contingency window, you probably do.

Three realistic scenarios

A musty smell in a finished basement. One air sample in the basement, one outdoor control. That is the $425 base. Add a main floor comparison to see whether the basement is loading the house and it is one more sample at $100, so $525.

A pre-purchase check where the inspector flagged the attic. Attic assessment, air samples in the living space and outdoors, plus a tape lift on the stained sheathing to confirm it is mold at all. Base plus one sample, $525. Against a closing deadline, add $100 for rush lab, so $620.

A 3,400 square foot house with a crawlspace issue and a bathroom concern. Larger home base at $550 to $650, plus samples in the crawlspace, both problem areas, and outdoors. Four samples means two beyond the included two, so roughly $740 to $840.

Every one of these gets quoted before we schedule.

Post remediation clearance is priced differently

Clearance, also called post remediation verification, is $375 flat for up to three samples. It is a shorter visit, 45 to 60 minutes, because the scope is defined: a visual check of the remediated area and the containment, air samples inside containment plus an outdoor control, and comparison against the standard.

It costs less than a diagnostic inspection because it is narrower, not because it is less rigorous. Restoration contractors use it regularly, because a remediator clearing their own work is not a verification of anything.

When you should not pay us anything

We will tell you on the phone if testing will not help, and this happens often enough that it belongs on the pricing page.

You can see obvious growth on a wall you already know is wet. A lab confirming what your eyes are telling you does not change the work. The IICRC S520 standard has no separate protocol by species. Fix the water, handle the material properly, move on.

A small area of bathroom surface mildew. That is a ventilation and cleaning problem, not a $425 problem.

You just want a number to feel better. If nothing about the result would change your behavior, the test is a purchase rather than a decision tool.

Things you should not pay anyone for: consumer settle plate kits, which grow mold in every house on earth including brand new ones because they have no measured volume and no baseline; mold "scores" from dust DNA panels, which EPA developed as a research tool and has said is not validated for routine use in individual homes; and any air sampling without a same-day outdoor control, because the result cannot be interpreted.

What this costs relative to what it decides

Median owner-occupied home value in Spokane County is $410,700, and roughly 5,800 to 6,300 homes change hands here every year. Kootenai County's median value is $518,700, with 2,484 sales in 2025 at a median of $549,000.

Against those numbers, $425 to know whether a house has a moisture problem is not the expensive part. The expensive part is the remediation quote that follows, where small localized jobs commonly run into the low thousands and whole-crawlspace projects reach five figures. An independent assessment that right-sizes a $12,000 proposal, or shows one is not needed, is the highest leverage money in the sequence. That is why we do not want to be the one bidding the work.

Frequently asked questions

Do you charge for a phone consultation? No. Describe what you are seeing and we will tell you whether an inspection makes sense. Sometimes the answer is no.

Is the lab fee separate? No. The $425 includes the indoor sample, the outdoor control and their analysis, and additional samples at $100 include analysis. The only add-on lab charge is the $100 rush.

Do you offer free inspections? No, deliberately. A free inspection gets paid for somewhere, and in this industry it is paid for by the remediation contract that follows.

How many samples do I really need? Usually two or three. The area of concern, the mandatory outdoor control, and often one unaffected room for comparison. Because we do not sell cleanup, extra cassettes are cost to you rather than margin to us, and we will tell you when two is enough.

Will insurance cover the inspection? Sometimes, when it is tied to a covered water loss and the carrier asked for documentation. Ask your adjuster before you book, and tell us if a carrier is involved so the report is written to be useful to them.

Do you price match the $149 companies? No, because it is not the same service. If a visual opinion is all you need, one of those is a reasonable buy and we will say so.

Get a firm price

Tell us the address, roughly how big the house is, what you are seeing or smelling, and whether a deadline is involved. You will get a specific number and an appointment, and if we think you should keep your money, you will get that instead.