Kent · Ductwork cleaning
Ductwork Cleaning in Underriver
Cleaning of kitchen extract ductwork, horizontal runs and vertical risers through access panels for Underriver, with a survey first and a report with photos at the end. Ask us for a fixed quote.
- A duct clean needed for an insurer
- Thick crusts of old grease along the duct
- Duct runs with no cleaning record
Between visits
Once we’ve finished, these simple steps help:
- Check readings when the menu changes
- Tell us if grease leaks from the ductwork
- Leave a way through to the access panels
- Consider fitting panels where the report shows gaps
A full system clean includes a TR19 certificate from the BESCA Vent Hygiene Elite portal. It shows when and where the clean was done and by whom.
Keep to the cleaning interval on the report. If the kitchen starts cooking longer hours, the interval may need to shorten, and grease thickness testing will show it.
How we handle ductwork cleaning in Underriver
We have been trading since 2009, working across London and the South East. As a BESCA Vent Hygiene Elite member, our duct cleaning is done to BESA TR19® Grease, with each certificate issued through the BESCA portal. Common call-outs are for hardened, baked-on grease in long horizontal runs and readings above 200 microns from a grease thickness test, across attenuators, bends and junctions and multi-storey ducts.
Work in a small place like Underriver starts with a call to agree access and timings, and the clean covers the whole system, as it would anywhere: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.

- Place
- Underriver (TN15)
- Region
- Kent
- Records
- TR19® certificate and photo report
- Quotes
- A fixed quote up front
- Hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Leave it or put it right?
Fire inside a duct is out of sight and out of reach. It can travel through the ductwork to other parts of the building, which is why the duct matters as much as the canopy. Somewhere as small as Underriver, losing a kitchen or building to a fault is felt by everyone who uses it.
The cost depends on how big the system is, the condition it’s in and access to every part of it. You get a fixed price before work begins, so you know where you stand.
What you get with us
- Full insurance on every job
- A single point of contact for sites across the South East and London
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- CHAS and SafeContractor accredited, with ISO 9001
Take a look at how cleaning jobs are priced or our accreditations and certificates.
What your team can do, and what needs us
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That’s our job.
What ductwork cleaning can’t fix
Ductwork cleaning can’t fix everything, and we’ll tell you before we start. It doesn’t solve:
- Fire dampers that do not close (they need testing and remedials)
- An extract fan that has stopped working
- Leaking duct joints that need repair
If in doubt, give us a ring on 0345 646 2711, or send details by email and we’ll say what we think before booking.
What we work on in Underriver
- Horizontal duct runs
- Multi-storey ducts
- Vertical risers
- Access panels
- Bends and junctions
- Attenuators
Underriver questions
Which fire service covers Underriver?
It’s Kent Fire and Rescue Service, which covers Underriver. TR19® isn’t law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
Can school kitchens in Underriver be cleaned in the holidays?
Yes. Half-terms and the summer break are the natural time for school work. The FSA’s register shows about 2 schools and colleges with food registrations within roughly a mile and a half of Underriver. Send us your term dates when you phone us on 0345 646 2711, or send details by email, and we will fit the work in.
Will I get a report after the ducts are cleaned?
Every clean comes with a photo report, and a full TR19 clean also comes with a certificate issued through the BESCA Vent Hygiene Elite portal. Keep both in the maintenance log.
What do you do to protect the area?
By covering it before any work starts. The work is kept contained and clean down when we finish.
How can I tell if my extract ducts are dirty?
Drips, smells and weak extraction are clues, but the only sure way is to measure. A WFTT or DTT reading gives a clear answer.
What types of premises do you cover?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
How long will the duct clean take?
A short duct can be cleaned in a few hours, but long or complex ducts may take several visits. Visits are planned out of hours.
How is kitchen extract ductwork cleaned?
We survey the route, test the grease, then open the access panels. We clean the runs and risers section by section, and test again when we’re done.
Ductwork cleaning in Underriver: the local picture
Food Standards Agency data counts about 6 restaurants, cafés and canteens across Underriver and its immediate surroundings (about a mile and a half). Wherever those kitchens cook under a canopy, the horizontal runs and risers need cleaning as well as the hood. Environmental health officers from Sevenoaks council inspect food businesses in Underriver. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Before-and-after pictures from each clean are a simple way to show the extract is in hand. The fire and rescue service for Underriver is Kent Fire and Rescue Service. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract.
Volunteers running a hall kitchen near Church of St Margaret, or anywhere in Underriver, may not know when the extract was last cleaned, and a grease test settles it. A hospital like Sevenoaks Hospital, about 3.2 miles north-west, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
Underriver is about 3 miles south-east of Sevenoaks, in Kent. Every kind of commercial site in Underriver, ductwork cleaning is something we can help with. We can work out of hours so trading is not interrupted. Underriver is one of 922 towns, villages and districts in Kent where we work for ductwork cleaning. Maidstone is in our area too, about 13 miles from Underriver.
Our technicians cover all of the TN15 postcode area for ductwork cleaning and the roads nearby. Neighbouring places we cover for ductwork cleaning include Budds (1 mile east), Bitchet Green (1 mile north-east), Watt's Cross (2 miles south), Godden Green (2 miles north) and Stone Street (2 miles north-east). Within a short drive, we also cover Maidstone (13 miles east), Dartford (14 miles north), Sevenoaks (3 miles north-west), Royal Tunbridge Wells (8 miles south), Gravesend (14 miles north-east) and Tonbridge (4 miles south-east).
What’s near Underriver
In Underriver, that means kitchens and buildings near Knole Park. The closest station to Underriver is Hildenborough station, roughly 2.3 miles south. Nearby you will also find Sevenoaks Museum (2.2 miles north-west) and Tonbridge Castle (4 miles south-east). Open spaces near Underriver include Dryhill Nature Reserve and Barden Lake.
What we do, step by step
We are used to working while the site is closed. A lot of visits happen overnight or at weekends, so the site can open as normal afterwards. On site, the work takes a few hours for a short run, longer for long runs and tall risers. In a small place like Underriver, the journey is planned ahead and the visit arranged around the site’s hours.
- Diagnosis: a survey of the duct’s route, size and access.
- You get a fixed price before work starts.
- We clean section by section, working from panel to panel.
- We take extra care at bends and at the foot of risers.
- The duct is signed off with readings, photos and a next clean date.
Getting ready for the visit
- Find the previous report, if there is one
- Tell us the best time to work, such as after service or at a weekend
- Name a contact who can let us in at the agreed time
Get a fixed quote
Every quote begins with a look at the system, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price so you know the cost before work begins.
Advice
What we are called out for in Underriver
Slow air leaves the most grease behind. Long horizontal runs, bends, changes in size and the foot of a riser all collect more, and those are the points we pay most attention to.
Most sites get in touch when they notice one of these:
- Grease leaking from duct joints
- Proof of duct cleaning for the insurer
- A duct nobody has opened in years
- Smells of old cooking grease from the ductwork
Term dates shape school work: for a school like Sevenoaks Preparatory School, an extract clean fits neatly into a half-term or summer break.
What your quote should include
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- What’s included in the scope, part by part
- Whether the work can be done while the site is closed
- What records you will receive afterwards
How we price ductwork cleaning
Every site gets its own quote. These are the things that affect it:
- Travel, parking and unloading
- The scale of the work
- Working hours and out-of-hours timing
- Whether it’s a one-off visit or part of a schedule
No two sites are the same, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
What we need to know
Many jobs can be priced from pictures and some basics. Send what you can of the following:
- Your last certificate, test record or report
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Wide photos of the system and the area around it
- When the site is open and when it’s quiet
We do not publish a price list, because every site is different. We look at your system first, from photos or on a visit, then send a fixed quote. To get going, phone us on 0345 646 2711, or send details by email.