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Ask a duct cleaning technician what the worst part of the job is, and you'll get a predictable list. Crawling through a riser built for someone half their size. The smell of a kitchen extract that hasn't seen a brush in three years. The client who insists the duct "was fine last month," standing next to a duct that very much was not fine last month.
Ask them what actually ruins their evening, though, and the answer changes. It's not the grease. It's the report.
The unofficial second job
Somewhere along the way, "duct cleaner" quietly became "duct cleaner who also produces a small dossier for every job." Before-and-after photos from the right angle. Deposit thickness readings, jotted on whatever was to hand. Which access points got used, which ones didn't, and why. A signature. A date. A certificate that has to look right, because someone at an insurance company who has never seen a duct in their life is going to decide whether it's good enough.
None of that is unreasonable to ask for — TR19 exists for genuinely good reasons, and Section 9 of the newest TR19 Air update has only made the expectations more specific. The requirement was never the problem. It's that most of this admin still gets handled the way it was fifteen years ago: on paper in a van, or from memory at a laptop, hours after the actual clean is a distant, grease-scented memory.
A day in the life of a report nobody asked to write twice
Picture it. Site one, 8am: three photos taken, one slightly blurred, nobody notices yet. Site two, 11am: a deposit reading written on the back of a delivery note because the proper form is in the other van. Site three, 2pm: access point B was welded shut and genuinely couldn't be reached, a fact that will be extremely important later and completely forgotten by 6pm.
By the time report-writing happens — often that evening, often by whoever drew the short straw in the office — it's a reconstruction exercise. Which photo goes with which riser. What "B, couldn't get in, ask Dave" actually meant. Whether the blurred photo counts as evidence or as an argument waiting to happen with an insurer six months from now.
Multiply that by every job, every week, and you get a business quietly running two shifts: the one that cleans ducts, and the one that turns cleaning ducts into something an EHO will accept without a follow-up call.
Why this is genuinely expensive, not just annoying
Here's the bit that isn't funny. That second shift costs money nobody's billing for. An hour spent reconstructing a report is an hour not spent quoting the next job, chasing the invoice from three jobs ago, or — the actual point of the business — cleaning more ducts. Do that across a team of technicians, every single week, and you're paying wages for a job that only exists because the real job wasn't captured properly the first time round.
It also tends to hit the same person twice. The technician does the physical work, then whoever's in the office does the paperwork, and both halves take roughly as long as they'd take if the information had simply been captured properly at the source. Nobody designed it to work this way. It just quietly ended up there.
The bit that stops being funny fast
The genuinely bad version of this story isn't a blurry photo. It's the phone call that comes eight months later, when a loss adjuster wants the report for a kitchen fire that started somewhere near an extract duct nobody's touched since. Or the renewal email from an insurer giving a client five working days to produce evidence of their last clean, which somehow becomes five working days for the duct cleaning company too, because the client has no idea where their own certificate went and neither, immediately, does anyone in the office.
At that point, "we definitely cleaned it, ask Dave" isn't a punchline any more. It's the difference between a five-minute email reply and a genuinely unpleasant afternoon spent searching three separate systems for a job that happened back in February.
The fix isn't "try harder"
This is usually where advice columns tell technicians to be more organised. Respectfully: they're organised enough to navigate a two-foot riser with a vacuum hose and not die. The tools are the problem, not the discipline.
Certa Vent exists because the report should get written once, on site, by the person who actually knows what happened — not reconstructed later by someone squinting at a camera roll. Photos get tagged to the access point as they're taken. Deposit readings go in as numbers, not biro on a delivery note. The outcome — full clean, partial clean, whatever it genuinely was — gets picked before the van leaves the car park, not guessed at from memory the following Thursday.
The ducts were always going to end up clean. Good technicians make sure of that. What shouldn't need heroics is turning a good clean into a report that holds up the first time someone actually reads it.
Your grease trap doesn't need a redemption arc. Your paperwork does.Body in Markdown...