Performance investigation
What the scope should cover
Describe whether trouble occurs on lighting, throughout use or only in particular weather. A professional may examine obstructions, appliance connections, termination and competing exhaust equipment. Do not conduct trial fires to reproduce the problem.
What to keep after the visit
Ask for recorded observations, tests where appropriate and the basis for each recommendation. Distinguish a confirmed defect from a hypothesis needing further checks.
The question worth asking
“How will you test the proposed explanation before recommending an alteration?”
Ask for the answer in the written scope. If the work changes after access or inspection, request a revised scope and price before approving the additional work.
Prepare without taking risks
Stop using a system that spills smoke. Record conditions from memory, including fans and recent home renovations, without recreating unsafe conditions.
Confirm appointment access, who will be present and what records to have ready. Preparation does not mean dismantling the appliance, climbing the roof or reproducing a dangerous symptom.
Compare companies for this particular job
- Confirm experience with your chimney type and appliance model. A company that cleans masonry fireplaces may not service every gas or pellet appliance.
- Ask who performs the work, what credentials apply to that person and how you can verify them with the issuing organisation.
- Check current insurance and any local licensing or permit requirements directly. A profile badge is not proof of every qualification.
- Compare access, materials, diagnostic work, disposal, exclusions and follow-up. A lower total can represent a smaller scope.
Read the detailed homeowner guide
The service brief helps you commission the visit. Our longer guide explains terminology, system differences, examples, FAQs and its supporting sources.
Read the full smoke and draft investigations guideSafety background: USFA, CPSC and recognised industry resources. These buying questions are editorial guidance, not installation instructions or an assessment of your home.
Connected symptoms and examples
Take the service question to your location
Use the local guide to prepare questions about access, building history and the authority responsible for your address. The service brief is national guidance; local permits and current burn restrictions must be checked separately.
