Bid the containment, the demo, and the clearance.

Common questions

How can anyone advertise a "$999 mold special"?

Because it is written for one small job, and that job is a preset here: an 80 sq ft closet, one containment zone, one equipment day, no demo, no clearance, no dumpster, unoccupied. At that scope the number is real. An 800 sq ft finished basement with two zones, four dry-out days, 240 sq ft of demo, HVAC cleaning, a dumpster, third-party clearance, and a family living in the house is a different job in eight separate places. Price both side by side and the conversation with the homeowner stops being about who is cheaper.

Why is affected area charged "past an included amount" instead of per square foot?

Because a flat $/sq ft misprices both ends. A remediation has a fixed cost of showing up at all — set-up, the first containment, the first equipment day — that a per-foot rate has to smear across the job. Here the base setup and the first containment are their own lines, and only area past the included amount adds hours, per 100 sq ft. Extra containment zones work the same way and carry their own kit cost, because a second zone is a second poly build, not a bigger version of the first.

Why is dry-out priced on the longer of HEPA days and dehumidifier days?

Because the crew's calendar is set by whichever piece of equipment is on site longest, not by the sum. Labor hours follow that longer figure. Equipment rental, though, is billed per unit per day, so HEPA days and dehumidifier days are each costed separately at their own daily rate. Adding the two for labor would double-count the same days on site; adding them for rental is correct, because two machines really are two rentals.

What does an occupied home add?

Its own hours line. Working around a family means more protection, more moves, more re-explaining, and a shorter productive day inside containment. It is entered as a toggle with its own hours rather than folded into a rate, so you can see what it costs and decide whether to schedule around it. Clearance testing, HVAC cleaning, and a dumpster each work the same way — a toggle with its own hours and its own fee, because all three cost time as well as money.

Is this a mold protocol or a health assessment?

No, and it must not be used as one. This is bid arithmetic on numbers you type. It is not a remediation protocol, an inspection, a health or safety determination, a clearance criterion, or an opinion on whether any particular growth is hazardous. Scope, containment design, and clearance standards come from your assessor, your jurisdiction, and the applicable standard of care — this page prices the work someone else has already scoped.

Why isn't a 25% margin the same as adding 25% to my cost?

Margin here is a share of the final price — price = total cost ÷ (1 − margin) — which is how the quote reads to the customer and how your books read it. Overhead is a separate markup on direct cost, applied before margin and never to itself or to profit. A $5,000 cost marked up 25% is $6,250, a 20% margin; a 25% target margin is $6,667. Everything stays in this browser: no account, no upload, "Forget my business details" clears the proposal details, and the optional local counter records only which features were used and the day.

Hand the customer a proposal

The price above is for you. This is the page you print or save as a PDF and give to the customer — your details, their details, the scope, the deposit split, and a line for them to sign. Your business details are saved on this device so you only type them once; the customer’s details are never saved.

Everything on the printed page is text you typed or a number this calculator worked out. It contains no warranty, lien, or cancellation wording — those depend on your jurisdiction and your contract, and this tool is not the place to invent them.