What to know
What to ask for, specifically
- The product name and manufacturer, so you can look it up independently.
- The technical data sheet, which states what it is intended for and how it is applied.
- The safety data sheet, which covers handling, ventilation and exposure.
- What standards or listings the material is tested against for use in air distribution systems.
- Cure time, and what the household should do during it — ventilation, occupancy, pets.
- What the manufacturer's warranty covers, and who honours it.
That is a normal list for any material going into a house. Flooring, paint and insulation all come with the same paperwork, and none of it is unreasonable to ask about.
Why we are not answering it on this page
Because a summary written by a contractor is not the document. You should read the manufacturer's own data sheet rather than our description of it, and you should have it in front of you where you can ask follow-up questions.
Any company confidently declaring a product safe on a marketing page, without showing you the documentation, is asking you to take their word for something you can check yourself.
Reasonable expectations during any work
- Ventilation arrangements explained before work starts.
- Clear guidance on when the household and pets can be in the space.
- Floors and furnishings protected.
- Access openings properly closed when the work is done.
- The scope, and any change to it, in writing.
If in doubt
Ask for the documentation before agreeing to anything, and take the time to read it. A contractor worth hiring will expect that and will not rush you through it.
Where to start
Which of these applies to your ductwork depends on how it was built and what shape it is in now, and that is not something a page can settle.
Our inspection is free. We will show you what we find, and if the answer is that your ducts are sound and simply need cleaning, that is what we will tell you.