Component rates, and how a project figure is built
Work is quoted per project from a survey, so the figure follows the route and the components a site actually needs. The rates below are what those components typically run at.
Typical rates by component
Supply, fitting and sealing are included in these ranges. They are component rates, not project totals — the project figure is quoted from the survey.
Ranges are indicative and cover the component as fitted. Stated here so a figure can be checked against something published rather than taken on trust.
Route, sizes, components
Every project figure comes from the same three things, and a survey is how we get them.
The route
How far the ductwork has to travel and what it has to get around. A run that passes cleanly through a void costs less than one that has to step over structure.
The sizes
Duct sizes follow the air the space needs. Larger duct on the same route means more material, so the sizes are fixed from what the space actually requires.
The components
Terminals, dampers, silencers and plant connections, each priced from the rate card above and each one listed separately in the quote.
Four things that move a quote
These are the reasons two jobs that look similar do not cost the same.
Pricing questions
What people ask before a survey.
- Why is the range so wide on each component?
Because the same component costs different amounts depending on size, access and how it has to be fitted. The rate card shows the spread; the survey narrows it to your job. - Is there a charge for the survey or the quote?
The survey and the quote are part of quoting the work. There is no separate line item for them in the figure you are given. - Can I supply my own components?
Tell us at survey. If a component has to work with the rest of the system, fitting something that does not match the run causes problems further along — so we will say so before agreeing to it.
Want a figure for a specific job?
Send the space, or book a survey. The quote lists the route, the sizes and the components so you can see where the figure comes from.