Our method

Each brief starts with a household decision: describe a symptom, decide what to measure, compare a scope of work, or identify when a professional is needed.

How a brief is built

1. Name the problem: separate comfort, maintenance, damage, regulation, public aid, and diagnosis.
2. Check the source: use public agencies, standards, consumer guidance, and a visible verification date.
3. Make assumptions explicit: explain what a table or estimate includes and leaves out.
4. Sequence the work: put observations and risk checks before product comparisons.
5. Set an escalation point: identify when a qualified professional or official service is required.

Why the limits matter

A guide can help prepare a question or compare like-for-like options. It cannot inspect a building, certify compliance, guarantee savings, or diagnose a health or safety issue.

Important: figures are indicative unless a page states the measurement, assumptions, source, and date behind them.