Mold removal in Havana runs $1,500–$6,000. On historic housing the number turns on what a company proposes to remove — lime plaster on wood lath frequently dries sound where drywall would have to come out, and it cannot be replaced in kind.
Old materials do not behave like drywall
Havana has housing old enough that lime plaster on wood lath, heart pine framing, and solid masonry appear regularly. Those respond to moisture quite differently from paper-faced gypsum board and modern dimensional lumber.
The practical consequence is that the cut-and-replace reflex, which is entirely correct for wet drywall, can be both destructive and unnecessary on historic fabric that would dry and remain sound. Heart pine in particular is dense and durable in ways contemporary framing is not.
Read the material list before anyone starts
On a historic property the line worth scrutinising is what is coming out versus what is being dried in place, and why. A scope that treats hundred-year-old plaster identically to sheetrock is removing fabric that did not need to go, and that fabric is not replaceable in kind.
Asked in Havana
How much does mold removal cost in Havana?
Most remediation runs $1,500-$6,000, but on historic property the figure turns on what a company proposes to remove. Lime plaster that would dry sound, taken out as though it were drywall, adds cost and removes fabric that cannot be replaced in kind.
Does old plaster have to come out like drywall?
Frequently not. Lime plaster on wood lath releases moisture differently from paper-faced gypsum and a great deal of it dries and stays sound. The cut-and-replace reflex is right for wet sheetrock and often wrong here.
What should I ask before work starts?
For the material list, line by line: what is being removed, what is being dried in place, and the reasoning for each. If the answer treats century-old plaster the same as modern board, get a second opinion before anyone begins.
What to ask before demolition on an old house
The material list, item by item: what leaves, what stays and dries, and why each. Historic plaster and modern board do not respond to water the same way, and a scope that treats them identically is taking fabric that did not need to go.
Get a free Tallahassee remediation quote
If you already hold an assessor’s protocol, say so — we quote directly against it. If you do not, describe what you have found and roughly how large an area it covers. Ten square feet is the line Florida draws, and knowing which side of it you are on changes what you need next. Same working day reply.