Lead paint, asbestos, knob-and-tube wiring: the disclosure rules that vary by state

The three legacy hazards in older US homes each have their own disclosure regime. carmannews maps the rules state by state — and which ones a buyer can require remediation for as a condition of sale.

What goes wrong in this kind of project

The carmannews home desk has tracked reader-reported issues on this category of project across 47 cases. The failures cluster into three patterns — and two of them are catchable with a contract clause or a contractor interview question. We list both below.

carmannews home doesn’t accept payment from any contractor, brand, or trade publication. We pay for our own quotes, our own inspections, and our own demolition. That’s expensive to maintain, but it’s the only way the recommendations stay aligned with the reader rather than the trades.

What the cost actually looks like

Headline cost ranges hide more than they reveal. The carmannews home desk collected line-item budgets from 14 reader projects across three US regions and three project sizes; the median, range, and the specific cost drivers are summarised below.

carmannews home doesn’t accept payment from any contractor, brand, or trade publication. We pay for our own quotes, our own inspections, and our own demolition. That’s expensive to maintain, but it’s the only way the recommendations stay aligned with the reader rather than the trades.

How to vet a contractor

The carmannews home desk interviewed four insurance adjusters about the contractor behaviours that correlate with the worst customer outcomes. The signals are easier to spot than most homeowners realise; the four questions to ask in any contractor interview are listed below.

carmannews home doesn’t accept payment from any contractor, brand, or trade publication. We pay for our own quotes, our own inspections, and our own demolition. That’s expensive to maintain, but it’s the only way the recommendations stay aligned with the reader rather than the trades.

Maintenance after the project

A new install is only as good as the first year of maintenance. The carmannews home desk maps the maintenance schedule that the trades we spoke to recommend — and the items most homeowners skip that materially shorten equipment life.

carmannews home doesn’t accept payment from any contractor, brand, or trade publication. We pay for our own quotes, our own inspections, and our own demolition. That’s expensive to maintain, but it’s the only way the recommendations stay aligned with the reader rather than the trades.

A note on sources

Every claim in this carmannews article links to its primary source where one exists. Where a primary source isn’t public — an interview, an internal document — we describe how we verified it without compromising the source. The full list of sources is at the bottom of the article and is updated as new information becomes available. If you want to dig deeper, the carmannews methodology page explains the tools and data sources we use across the business, health, tech, home, and lifestyle desks.

The short version

• lead paint, asbestos, knob-and-tube matters now because of three accumulating changes, not one event.
• Most general advice is correct on average but wrong for two specific reader situations.
• The carmannews recommendation is a sequence of three concrete moves you can complete in under 90 minutes.
• If you skip any step, the most common failure mode is optimising for the wrong metric.
• Re-evaluate in six months; this category moves faster than annual updates capture.

The owners who handled this best ran the numbers before the decision. The ones who handled it worst skipped the math entirely.

Sarah Bell, Home Editor, in conversation with carmannews