Kent · Ductwork cleaning
Duct cleaning in Colt's Hill
Ductwork cleaning for commercial sites in Colt's Hill and across Kent. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Proof of duct cleaning for the insurer
- High readings at a recent grease test
- Thick crusts of old grease along the duct
Ductwork cleaning in Colt's Hill
No two duct runs are the same, in Colt's Hill or anywhere else. A few metres to an outside wall, or a riser up through the building to a roof fan. We map the route during the survey, so we know where to get in and how long it will take. The work covers access panels, multi-storey ducts and horizontal duct runs, and people most often call us about grease seeping out of the duct seams and a rancid smell from the extract duct.
Somewhere as small as Colt's Hill, commercial kitchens are few: perhaps a pub, a school or care home kitchen, or a hall used for events. Each still has a canopy and duct that collect grease, whatever the size of the place.
Accreditations are easy to claim and worth checking. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Where
- Colt's Hill (TN12)
- Region
- Kent
- Records
- Certificate plus before-and-after pictures
- Price
- A fixed price before we start
- When we work
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
What happens if it’s left?
A dirty duct is something insurers ask about. Many require cleaning to TR19, and they can refuse or reduce a claim without proof. A certificate that covers the ductwork is what they want to see. Our emergency line runs 24/7, but a planned visit to Colt's Hill is calmer for everyone.
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
Why choose Duct Doctor in Colt's Hill
- One contact for all your sites in London and the South East
- Survey first, then a fixed quote
- Accredited under CHAS and SafeContractor, with ISO 9001
- Full insurance on every job
See our cost guide and our accreditations.
Colt's Hill kitchens: local notes
Look up Colt's Hill on the FSA’s food hygiene register and you will find about 11 cafés, restaurants and staff canteens and about 4 sandwich bars and takeaways within 1.5 miles or so of the middle of Colt's Hill. The duct above a busy canopy coats itself in grease long before anyone sees it. Fire safety in Colt's Hill falls to Kent Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. Environmental health officers from Tunbridge Wells council inspect food businesses in Colt's Hill. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Before-and-after photos from each clean are a simple way to show the extract is in hand.
Term dates shape school work: for a school like Capel Primary School, an extract clean fits neatly into a half-term or summer break. Volunteers running a hall kitchen near Five Oak Green Church, or anywhere in Colt's Hill, may not know when the extract was last cleaned, and a grease test settles it.
Colt's Hill is about 4 miles south-east of Tonbridge, in Kent. Whatever kind of site you run in Colt's Hill, ductwork cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Colt's Hill is one of 922 towns, villages and districts in Kent we cover for ductwork cleaning. We also work in Maidstone, about 10 miles from Colt's Hill.
Here we cover the TN12 postcode area for ductwork cleaning. You will find streets such as Colts Hill and Maidstone Road, all of which we cover for ductwork cleaning. If your site is just outside Colt's Hill, we cover Capel (1 mile west), Five Oak Green (1 mile north), Paddock Wood (1 mile east), Matfield (1 mile south-east) and Whetsted (1 mile north-east). Within a short drive, we also cover Maidstone (10 miles north-east), Sevenoaks (11 miles north-west), Royal Tunbridge Wells (5 miles south-west), Tonbridge (4 miles north-west), Kings Hill (7 miles north) and Foley Park (11 miles north-east).
What’s near Colt's Hill
Around Colt's Hill, our work takes us to kitchens and buildings near The Dovecote Inn, Foal Hurst Wood and Mascalls School. For rail, the closest station is Paddock Wood station, about 1.5 miles north-east. Other landmarks nearby include Tonbridge Castle (4.1 miles north-west) and The Hop Farm Museum (2.3 miles north-east). Not far away are Barden Lake and Tudeley Woods RSPB reserve.
Colt's Hill questions
Can you get to a site in Colt's Hill?
Yes, smaller places are covered as well as towns. Let us know about access, parking and anything unusual about getting there when you book.
Can you come to Colt's Hill after we close?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Colt's Hill needn’t be disturbed. Your opening times are the first thing we ask for.
Do you offer maintenance contracts?
Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. Each report recommends when the next visit should be.
Do we lose a day’s trading?
Not normally. Visits are timed for when the area is closed, such as overnight or at a weekend, so the site can carry on as normal.
Who is the responsible person?
It depends on the building. The Fire Safety Order 2005 puts the duty on the responsible person, which may be the employer, owner, landlord, facilities manager or managing agent.
Is TR19 cleaning required by law?
Not in itself. Insurers, fire officers and EHOs look to TR19® as the benchmark, and many insurers ask for proof of cleaning to it. The legal duty sits in the Regulatory Reform (Fire Safety) Order 2005, which applies in England and Wales.
What’s TR19?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
What types of premises do you cover?
Any commercial site with kitchens or ventilation, from a single café to a large school. We work with hotels, schools, care homes, offices, retail and leisure sites.
How the job changes from site to site
Bends and transitions
Transitions from the canopy spigot into the duct catch a lot of grease. We reach it from the plenum side where possible.
Horizontal duct runs
Flat runs of duct link the canopy to the riser or the outside wall. Grease drops out of the slowing air along them, so each section is cleaned through its access panels.
What we do, step by step
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. The visit itself takes a shift or more, depending on the length of the runs and the number of access points. If the van will struggle with a lane or gateway near Colt's Hill, let us know and we’ll plan around it.
- Diagnosis: a survey of the duct’s route, size and access.
- A fixed quote follows, based on what we found.
- We clean section by section, working from panel to panel.
- We take extra care at bends and at the foot of risers.
- Readings, photos and a recommended next clean date complete the job.
How to prepare
- Dig out any earlier paperwork for the system
- Agree a time when the area can be out of use
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
Getting a quote
Quoting starts with a diagnosis, from your pictures and details or, where that isn’t enough, a survey on site. After that, you get a fixed price for the work so you know the cost before we start.
Related advice
Multi-site and managed buildings
For anyone managing more than one site, we can schedule visits across all of them on one quote. Each site gets its own report and photos, so records stay tidy.
We also work for facilities teams across offices, schools and healthcare across Kent. Larger estates can be phased building by building around the people who use them.
What your team can do, and what needs us
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We’ll take a look and give you a fixed quote.
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
When to call us in Colt's Hill
Grease settles fastest where the air slows down. 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.
Common reasons sites call us include:
- A grease test showing the duct is overdue
- Grease leaking from duct joints
- Stale grease odours from the duct
- A duct nobody has opened in years
A hospital like Tunbridge Wells Hospital, about 2.8 miles south-west, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
Questions to ask before booking
- Whether the price is fixed
- Whether a written report and pictures are included
- What happens if part of the system cannot be accessed
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
Also near Colt's Hill
Also in Colt's Hill
Honest limits
It’s worth knowing the limits before booking:
- Fire dampers that don’t close (they need testing and remedials)
- A failed fan motor at the end of the duct (a fan repair job)
- Parts of the duct with no way in
Not sure which it is? You can give us a ring on 0345 646 2711, or email photos and we will tell you honestly.
Where we work
- Bends and junctions
- Multi-storey ducts
- Attenuators
- Vertical risers
- Horizontal duct runs
- Access panels