Restoration
Mold Removal Cost Calculator
Prices mould removal, where small jobs and large ones are handled quite differently.
Result
A planning estimate, not a quote. Access, the age of the equipment, what is found once it is opened up and local labour rates all move the real figure, sometimes a long way.
Get a Free Business AuditHow the calculation works
Hours times crew times rate, plus materials, equipment and the call-out. Scope scales in steps rather than smoothly. A small isolated area of growth on a hard surface can be cleaned with ordinary precautions and a modest setup. A larger area, or growth in porous materials, calls for full containment, negative air, protective equipment and material removal, which is a different mobilisation. The published guidance distinguishes these by affected area, which is why a small patch and a wall cavity are not the same job scaled.
What moves the number
- Affected area, which determines the level of containment and protection.
- Whether the material is porous or a hard cleanable surface.
- Whether occupants are vulnerable, which raises the precautions warranted.
- Access, as crawl spaces, attics and wall cavities all slow the work.
Where this one goes wrong
Hard surfaces can be cleaned; porous materials that are colonised generally come out. Drywall, insulation, carpet and ceiling tile hold growth within the material rather than on it, and surface cleaning leaves it there to recur. Bleaching visible growth on porous material is the classic ineffective response, because it lightens the colour without removing the colonisation. On occupant health, be careful not to overstate or diagnose: mould exposure affects people differently, sensitivities vary, and health questions belong with a physician rather than a contractor. The scope decision rests on the building, not on symptoms.
Before you quote
- Remove colonised porous materials rather than surface cleaning them.
- Match containment to the affected area, not to the budget.
- Refer health questions to a physician rather than advising on them.
Where the rules come from
Questions
About this calculator
Can mould be cleaned off rather than removed?
On hard, non-porous surfaces, yes. On porous materials like drywall, insulation, carpet and ceiling tile the growth is within the material rather than on it, so surface cleaning leaves it and it returns. Those materials are removed instead.
Does bleach kill mould?
It lightens the visible staining on porous material without removing the colonisation inside it, which is why bleaching a mouldy wall looks effective briefly and then fails. On hard surfaces, proper cleaning and HEPA vacuuming is the method rather than relying on a biocide.
Is a small patch of mould a big job?
Not necessarily. Guidance distinguishes by affected area, and a small isolated patch on a hard surface can be handled with modest precautions. Larger areas or growth in porous material need full containment and material removal, which is a different scale of mobilisation rather than the same job larger.
The formula
total = hours x people x rate + parts + call-out, then sales tax
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How to use this calculator
- Hours on site (h). Enter your own figure; the page starts at 22 h.
- People needed. Enter your own figure; the page starts at 1.
- Labour rate charged ($). Enter your own figure; the page starts at $135.
- Parts and materials ($). Enter your own figure; the page starts at $1,300.
- Call-out or diagnostic fee ($). Enter your own figure; the page starts at $95.
- Sales tax (%). Leave at zero if you are quoting before tax.
The result updates as you type, so you can try a figure, see what it does to estimated total, and change it back. Nothing you enter is sent anywhere or saved.
A worked example
These are the figures the calculator opens with. Every number in the results column below is produced by the same calculation the page runs, so you can follow it through before putting your own figures in.
What goes in
| Input | Value |
|---|---|
| Hours on site | 22 h |
| People needed | 1 |
| Labour rate charged | $135 |
| Parts and materials | $1,300 |
| Call-out or diagnostic fee | $95 |
| Sales tax | 0% |
What comes out
| Result | Value |
|---|---|
| Estimated total main result | $4,365 |
| Labour | $2,970 |
| Before tax | $4,365 |
| Sales tax | $0 |
About $4,365: $2,970 of labour, $1,300 of parts and a $95 call-out.
How sensitive the answer is
Holding everything else steady and changing only labour rate charged, this is what happens to estimated total. It is worth knowing which of your inputs the answer actually hinges on, and which barely move it.
| Labour rate charged ($) | Estimated total |
|---|---|
| $68 | $2,891 |
| $101 | $3,617 |
| $135 example above | $4,365 |
| $203 | $5,861 |
| $270 | $7,335 |
Every other input is held at the example value while this one changes, which is not how a real job behaves. Treat it as a guide to which number matters most, not as five separate quotes.
What each figure means
- Hours on site (h)
- Measured in h, between 0 and 400, starting at 22 h.
- People needed
- A number, between 0 and 40, starting at 1.
- Labour rate charged ($)
- A money amount, starting at $135.
- Parts and materials ($)
- A money amount, starting at $1,300.
- Call-out or diagnostic fee ($)
- A money amount, starting at $95.
- Sales tax (%)
- Leave at zero if you are quoting before tax.
What the results tell you
| Result | What it is |
|---|---|
| Estimated total | The headline result. A money figure. |
| Labour | A money figure. |
| Before tax | A money figure. |
| Sales tax | A money figure. |
Estimating is the easy part
The jobs you never hear about cost more than the ones you mis-measure. BDEVY builds the marketing, systems and automation that bring them in.