Cost & value / Hidden extras
A quote is a starting figure. What lands on the invoice depends on what the system actually needs to be cleaned properly.
Beyond the headline
A deep clean quote is a starting figure. What lands on the invoice depends on what the system actually needs to be cleaned properly - and much of that is decided by access and condition, not by the headline price. The extras are not padding; they are the parts of the real job a phone quote could not see.
Knowing what tends to inflate a bill is the difference between a nasty surprise and a budgeted line.
Access adds up
Ductwork often runs above false ceilings, through roof voids or up an outside wall, and TR19 expects enough access panels, of sufficient size, to clean and inspect the whole route. If the panels are missing, new ones have to be cut and fitted; if the run is high or external, scaffold or roof access is needed. Where a section genuinely cannot be reached, it has to be noted for remedial work rather than quietly skipped.
Every one of those is a real cost of cleaning the whole system - not an upsell. The panels then stay in place, so every future clean is quicker and a little cheaper than the first.
Condition and timing
A heavily loaded or long-neglected system takes longer, and may need the fan stripped down, worn parts replaced, or a grease trap and drainage dealt with alongside. Working overnight to avoid closing the kitchen adds an out-of-hours premium, and waste has to be disposed of properly. VAT sits on top of all of it. None of this is hidden by an honest contractor - but none of it shows on a headline figure either. A long-neglected system can also need more than one visit to bring back to standard, and that first heavy clean is almost always the dearest one the kitchen will ever have.
How to see it coming
The way to stop extras ambushing the budget is to have the system surveyed before the number is set. A survey prices the access and the condition up front, so the quote reflects the real job and the invoice holds few surprises.
So the headline price is necessary but not sufficient. Access and condition extras only surface on a survey, so a quote given without one is incomplete rather than cheap - and the survey is what converts the hidden extras into a figure you can plan around.
Questions
Usually because of access and condition the quote could not see - new access panels, scaffold, a heavily loaded system, or out-of-hours work. A survey beforehand prices these in so the invoice holds few surprises.
New or additional access panels, scaffold or roof access, fan strip-down and worn parts, grease trap and drainage work, out-of-hours premiums, waste disposal, and VAT on the total.
Yes. TR19 expects enough panels, of sufficient size, to clean and inspect the whole duct run. Without them, sections cannot be reached - so fitting them is part of cleaning the system, not an optional add-on.
Ask for a survey before the price is fixed, and for the quote to separate access works from the clean and to show VAT. Extras you have seen coming are a plan; extras you have not are a shock.
Not if the system is to be cleaned properly. An unreachable section left uncleaned is a fire risk and a gap in your compliance - which is why it should be noted for remedial work, not ignored.
Phoenix Duct Clean · by the numbers
We survey the access and condition first, so your quote reflects the real job. Call or email for a survey and a clear, itemised breakdown.