What a Commercial Mold Assessment Costs in Northeast Florida

Commercial mold assessment in Northeast Florida typically runs from about $700 for a small office or retail suite to $2,200 for a mid-size multi-tenant building, with large warehouse and industrial facilities running $2,600 and up. The price is set by three things: the square footage being assessed, the number of HVAC zones or separate areas involved, and the number of air and surface samples the situation requires. This article breaks down how a commercial assessment quote is actually built, what gets itemized separately, what post-remediation clearance testing costs, and the questions worth asking any assessor before you hire one.

The short answer

Most commercial assessments land between $700 and $2,200.

Small suites sit at the bottom of that range. Mid-size and multi-tenant buildings sit in the middle. Warehouses and large facilities run higher, sometimes well past $2,600.

That spread is wide because "commercial building" covers a 2,800 square foot dental suite and a 60,000 square foot distribution center, and those are not the same day of work. What follows is how the number is actually built, so you can tell whether a quote you've been handed is reasonable — including one that isn't ours.

If someone quotes you a price before asking how big the building is, they are guessing.

What moves the price

Three things, and only three.

Everything else is a detail. If you can answer these, you can get a real quote over the phone.

Building sizeSquare footage of the areas actually being assessed — not the whole property, if the concern is confined to one suite or one floor. Size drives how long the visual and moisture survey takes.

Zones and systemsHow many separate HVAC systems or air-handling zones serve the space. Each zone that could carry contamination needs its own air sample, because results from one zone say nothing about another.

Sample countThe number of air and surface samples the situation genuinely calls for. This is the line that moves a quote the most, and it's the line most worth understanding before you agree to anything.

What jobs actually run

Typical all-in cost by building size.

These are complete, scoped numbers — the site visit, the survey, the samples, the lab work, and the written report. Not a starting price that grows later.

Small — under 5,000 sq ftA single office suite, retail unit, or professional space with one or two HVAC zones. Usually three to six samples. Typically $700 to $1,000 all in.

Medium — 5,000 to 20,000 sq ftMid-size or multi-tenant buildings, medical offices, restaurants, small schools. Usually six to fifteen samples across multiple zones. Typically $1,300 to $2,200 all in.

Large — 20,000 sq ft and upWarehouses, industrial facilities, large institutional buildings. Fifteen to thirty or more samples. Typically $2,600 to $5,000 and up.

Very large or unusually complex facilities are quoted individually rather than squeezed into a band. Our commercial job minimum is $500.

A worked example

An 8,000 square foot office.

Three HVAC zones. Tenant complaints on the second floor, staining found above a ceiling tile near an air handler, no one sure whether it's isolated.

Nine samples: one air sample per zone, an outdoor control for comparison, several more in the affected area and the space next to it, and two surface swabs of the visible staining.

All in: $1,605. That covers the site visit, the full moisture and visual survey, all nine samples with accredited lab analysis, and the written report.

Itemized separately

What gets added, and what it costs

Samples — $95 each. Air or surface, same price. Itemized rather than bundled, so you see exactly what you're paying for.
Rush lab turnaround — $25 to $50 per sample. Only if your timeline requires next-business-day results.
Thermal imaging and moisture mapping — $150 to $350. When moisture is suspected behind finished surfaces.
Written remediation protocol — $350 to $750. A standalone scope of work contractors bid against.
Travel beyond our standard service radius, quoted per job and stated up front.

Clearance is different

Post-remediation testing is priced as a formula.

Clearance is a narrower job than an assessment — the problem is already defined, and the question is whether the remediation worked. So it's priced so a contractor can build it into a bid without calling first.

BASE

$300

Site visit, visual verification of the remediated area, moisture confirmation, and the written clearance report with a stated pass or fail.

PER SAMPLE

$95

One air sample per containment or zone, plus an outdoor control, plus surface swabs where residue remains.

TYPICAL

$500 – $870

A single-containment commercial clearance usually runs two to four samples. Multi-zone projects scale from there.

Reading a cheap quote

Why some numbers come in far lower.

You will find quotes well under these figures, and sometimes there's a good reason. More often there's one of these.

It's a residential price on a commercial building. A $300 homeowner mold test is a real service, but it's scoped for a house — one or two samples, no zone-by-zone logic, and a report written for a homeowner rather than an adjuster or an attorney.
The sample count is too low to conclude anything. Two samples in a three-zone building can tell you a zone is clean. It cannot tell you the building is.
Nobody is looking for the source. Sampling tells you what is in the air. Moisture mapping and thermal imaging tell you why. Skip the second part and the problem comes back after remediation, and you pay twice.
The assessment is subsidized by the remediation. When the same company tests and removes, a cheap test is a lead generator for an expensive removal. Florida licenses those as two separate professions for exactly this reason.

The cheapest assessment is the one you pay for twice.

Before you hire anyone

Five questions worth asking.

Ask these of any assessor, including us. The answers tell you more than the price does.

Do you also perform remediation? If yes, understand that their findings and their revenue point the same direction.
How many samples, and why that number? There should be a reason tied to zones and affected areas, not a package.
Is the lab independent and accredited? An in-house lab means the same company produces the finding and the data behind it.
Will the report identify the moisture source? A report that confirms mold without explaining where the water came from hasn't finished the job.
Is the quote all in? Ask specifically what could be added after the visit, and get the answer in writing.

Want a real number for your building?

Tell us the square footage, how many zones or suites are involved, and what you're seeing. We'll scope it and send one all-in quote.

Request a proposal Call (904) 206-7311

(904) 206-7311 · info@hannacpi.org · FL License MRSA5649 · Assessment only