Kent · Ductwork cleaning
Ductwork cleaning in Cobham, Kent
Looking for ductwork cleaning in Cobham? We diagnose first, fix the price and book the work around your hours, finishing with a written report and pictures.
- A rancid smell from the extract duct
- Thick crusts of old grease along the duct
- An insurer asking for TR19 evidence
Ductwork cleaning in Cobham
Each extract duct we take on in Cobham goes through the full routine: we test the grease first, remove thick deposits by hand and degrease what’s left. Readings are taken again afterwards and pictures go into your report. If you are dealing with grease seeping out of the duct seams and readings above 200 microns from a grease thickness test, we can put it right, from multi-storey ducts, bends and junctions and vertical risers onwards.
In a small place like Cobham, kitchens are often in older or extended buildings, with long single-storey duct runs, and those horizontal sections are where grease settles. Access, parking and timings are agreed before the day.
The report is your system’s health record: dated, with pictures, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Where
- Cobham (DA12)
- Region
- Kent
- Records
- TR19® certificate and photo report
- Quotes
- A fixed quote up front
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
What we do, step by step
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that is an evening, overnight or a weekend. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes a shift or more, depending on the length of the runs and the number of access points. Somewhere like Cobham, lanes, gates and parking are worth mentioning in advance.
- We map the duct route and check where the access panels are.
- Grease readings are taken at set points along the duct.
- Through the access panels, thick grease is removed by hand first.
- Horizontal runs and risers are then degreased by the method that suits the deposit.
- Readings and photos are repeated and any section we couldn’t reach is recorded.
Before we arrive
- Plan for cooking equipment or plant to be off before we arrive
- Arrange a key holder or contact on site
- Find the previous report, if there is one
Getting a quote
Want a quote for ductwork cleaning? Please ring 0345 646 2711 or drop us a line with a few details about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
Advice
Do you need ductwork cleaning in Cobham?
Grease in a duct running from a kitchen in Cobham is as much a fire risk as in any building. Burning grease can carry fire through the ductwork to other rooms or floors, which is why the responsible person needs it under control.
These are the problems we see most often:
- Smells of old cooking grease from the ductwork
- Grease seeping out of the duct seams
- A grease test showing the duct is overdue
- Sections of duct with no access panels
If your kitchen is in a listed or historic building, like the houses around Cobham (Cobham College is about 0.2 miles south-west), fitting access panels needs care.
What to look for in a quote
- Whether they recommend a next date
- How areas they cannot reach will be recorded
- Whether the work can be done while the site is closed
- Proof of accreditation you can verify
Common questions in Cobham
Do you work overnight in Cobham?
Yes, evening, overnight and weekend work is normal for us. It means the site in Cobham keeps running as normal. Tell us your opening hours when you ask for a quote.
Is Cobham within the area you cover?
Yes, Cobham is part of our area, however small the site. The journey is planned ahead, so a few details about the route help.
Can you price the work without visiting?
Usually, yes. Send wide shots, close-ups of any access panels and anything that worries you, and we usually come back within one working day. If photos are not enough, we’ll survey first.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Do you have insurance?
Yes. We carry full insurance and have been trading since 2009.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used, and we’ll suggest a schedule and quote for it.
What shows that the ducts need a clean?
We measure it. Using a Wet Film Thickness Test or Deposit Thickness Test, we check the grease at set points. BESA guidance says the mean shouldn’t exceed 200 microns, and 500 or more anywhere needs immediate spot cleaning.
Do you work with multi-site operators?
Yes. Tell us the addresses and what each needs and you will get one fixed quote.
Grease, kitchens and Cobham
According to Food Standards Agency records, there are about 8 pubs and bars within about 1.5 miles of central Cobham. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. It’s Gravesham council that sends environmental health officers to food businesses in Cobham. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. A dated certificate in the maintenance file answers the question before it’s asked. The fire and rescue service for Cobham 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.
Church and community hall kitchens, near Parish Church of St Mary Magdalene or anywhere around Cobham, are easy to forget, but their extracts collect grease like any other. Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Cobham is Gravesham Community Hospital, about 3.9 miles north-west.
Cobham is about 3 miles south of Gravesend, in Kent. Across the DA12 area, we can carry out ductwork cleaning at your premises. Cobham is one of 922 places in Kent we cover for commercial clients. We also work in Maidstone, around 10 miles away.
Here we cover the DA12 postcode area for ductwork cleaning. Local streets include The Street, Lawrence Drive and Cobhambury Road, and we cover them all for ductwork cleaning. Neighbouring places we cover for ductwork cleaning include Upper Bush (2 miles south-east), Lower Bush (2 miles south-east), Cuxton (2 miles south-east), North Halling (3 miles south-east) and Upper Halling (3 miles south). Larger places within reach include Maidstone (10 miles south-east), Sittingbourne (15 miles east), Dartford (8 miles north-west), Sevenoaks (12 miles south-west), Gravesend (3 miles north) and Tonbridge (14 miles south).
Landmarks near Cobham
Typical jobs here are in premises near Thamesview School, The Ship Inn and Jeskyns, among other places. Cobham’s nearest station is Sole Street station, roughly 1.2 miles south-west. Well-known places in the area include Rochester Castle (4.3 miles east) and Gravesham Community Hospital (3.9 miles north-west). Open spaces near Cobham include Gad's Hill and Ranscombe Farm.
What a clean will not put right
Before you book, it helps to know what’s not included:
- A worn-out fan that needs replacing
- A duct that is too small or badly routed for the kitchen (a design issue)
- Ductwork that is corroded, split or holed (that needs a ductwork contractor)
If in doubt, call us on 0345 646 2711 or use the quote form and we will say what we think.
Parts of the system we cover
- Vertical risers
- Attenuators
- Horizontal duct runs
- Bends and junctions
- Multi-storey ducts
- Access panels
Managing agents and facilities teams in Cobham
We work for landlords, managing agents and facilities managers as well as the people running the site. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
Keeping records across a portfolio is half the battle. Every visit ends with a dated report and photos, so you can show an insurer or inspector what was done at each site.
Between visits
No system stays clean for ever, but care slows the build-up. Our tips:
- Get panels fitted where the duct couldn’t be cleaned
- File each certificate and photo report in the maintenance log
- Leave a way through to the access panels
- Make sure filters are seated properly
Grease readings are taken again at the same set points, so the report shows the before and after figures. Before and after pictures sit next to the numbers.
Book the next duct clean before the date passes. A change in cooking hours may change the interval under BESA guidance, and grease thickness testing will show it.
Different parts, different methods
Multi-storey and shared buildings
A duct that climbs several floors may be cleaned over more than one visit. Visits are planned around the building’s hours, out of hours where possible.
Bends and transitions
The join where the canopy meets the duct is a common hotspot. We reach it from the plenum side where possible.
What else we do in Cobham
Why it’s worth doing now in Cobham
BESA guidance says grease shouldn’t exceed a mean of 200 microns between cleans. Anywhere that reaches 500 microns or more needs immediate spot cleaning. Putting off the clean only pushes readings higher. In a small place like Cobham, a system that fails can take a site out of use.
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will explain each part.
Why choose Duct Doctor in Cobham
- A single point of contact for sites across the South East and London
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Evenings, overnight and weekends, plus 24/7 emergency callout
- We diagnose before we treat
Take a look at what affects the cost or our accreditations.