Kent · Ductwork cleaning

Knave's Ash ductwork cleaning

Cleaning of kitchen extract ductwork, horizontal runs and vertical risers through access panels for commercial sites in Knave's Ash and across Kent. CHAS, SafeContractor and ISO 9001, and fully insured.

  • Grease seeping out of the duct seams
  • A rancid smell from the extract duct
  • Years of grease along the duct floor

Ductwork cleaning for sites in Knave's Ash

Ductwork cleaning in Knave's Ash

Duct cleaning is the hardest part of an extract clean, and the part most often skipped. Without enough access panels, long stretches can go years without being touched. We open up every reachable section and record any we cannot reach, so you know exactly where you stand. If you have hardened, baked-on grease in long horizontal runs and duct runs with no cleaning record, we can help, from attenuators, horizontal duct runs and access panels onwards.

In a village or hamlet like Knave's Ash, the kitchens that need extract cleaning are normally a pub, a school, a care home or a hall kitchen, wherever there is one. Each still has a canopy and duct that collect grease.

Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.

The Duct Doctor team standing beside their branded white and blue vans
Place
Knave's Ash (CT3)
Wider area
Kent
Reporting
TR19® certificate and photo report
Quote
A fixed quote up front
Hours
Nights, weekends or holidays to suit you
Phone
0345 646 2711
Page updated
30 October 2026

What affects the quote in Knave's Ash

You will get a fixed price before any work starts. It takes into account:

  • Access, including roofs, risers and ceiling voids
  • The condition we find in the survey
  • How big the system is
  • Working hours and out-of-hours timing

Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are unsure, phone us on 0345 646 2711 or email us for straight advice and a fixed quote.

Asking for a quote

When you call or email, it’s useful to have:

  • Anything you’ve noticed, such as smells, noise, drips or poor airflow
  • Your opening hours and when the area is out of use
  • Any previous report or certificate
  • The roof, plant room or outside wall the system runs to

Getting a quote doesn’t take long. Send a few details and photos, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.

Landlords, agents and facilities managers

Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we are happy to quote for all of it.

Facilities teams in offices, schools and healthcare sites book us too in Knave's Ash and across Kent. Larger estates can be phased building by building around the people who use them.

Different parts, different methods

Access panels

Every section of duct is cleaned through an access panel. Without them, parts of the duct can’t be reached and the report has to say so.

Attenuators and discharge

At the end of the duct is the discharge. Grease can collect there and stain the area around it, so it’s cleaned as far as safe access allows.

What your team can do, and what needs us

When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We can diagnose it and quote.

Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, alongside our reports.

Keeping the system healthy

After the visit, a few habits help the work last:

  • Make sure filters are seated properly
  • Keep your cleaning records together
  • Do not switch the extract off early
  • Book the next clean before the recommended date

Any section of duct we couldn’t reach is listed on the report, with the reason. You can then decide whether to have access panels fitted.

Watch for warning signs between cleans: drips from the ductwork, stale smells or a noisy fan. Testing will show whether any section has reached 500 microns.

What ductwork cleaning looks like in Knave's Ash

Knave's Ash lies within about 3 miles of the sea. Near the sea, the fan and discharge at the top of a kitchen extract corrode faster than they would inland. There are about 5 restaurants, cafés and canteens within 1.5 miles or so of the middle of Knave's Ash, according to the Food Standards Agency’s register. Each kitchen that cooks under a canopy sends grease-laden air into a duct, where it cools and settles. Food hygiene inspections in Knave's Ash are the job of Canterbury City council’s environmental health team. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Keeping each certificate and photo report on file helps show the extract is looked after.

Healthcare kitchens, like those at hospitals such as St Martins Hospital (about 4.4 miles south-west), often cook for long hours, which puts them in BESA’s heavier-use bands. If you look after a school kitchen, at a school such as Hoath Primary School or anywhere near Knave's Ash, the holidays are the usual time for a TR19® clean.

Knave's Ash is about 2 miles south of Herne Bay, in Kent. Wherever you are in the CT3 postcode area, we cover ductwork cleaning for commercial sites. We cover 922 places across Kent, large and small. We also work in Maidstone, about 27 miles from Knave's Ash.

All of CT3 is within our area for ductwork cleaning, from busy streets to back roads. Local streets include Hicks Forstal Road and Hoath Road, and we cover them all for ductwork cleaning. We also cover the places around Knave's Ash: Hoath (1 mile east), Maypole (1 mile north-east), Old Tree (1 mile north-east), Millbank (1 mile north-east) and Hicks Forstal (1 mile west). We also work in nearby towns such as Canterbury (5 miles south-west), Margate (10 miles east), Dover (15 miles south-east), Ramsgate (11 miles east), Broadstairs (12 miles east) and Whitstable (5 miles west).

What’s near Knave's Ash

In Knave's Ash, that means kitchens and buildings near Curtis Wood and Spires Academy and the streets around them. Knave's Ash’s nearest station is Herne Bay station, about 2.6 miles north-west. A little further out are St Martins Hospital (4.4 miles south-west). Green spaces nearby include West Blean and Thornden Woods.

Map of Knave's Ash © OpenStreetMap contributors

The process

Your staff do not need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Afterwards, the area is left tidy and the written report follows. A few photos of the system help us make the most of a visit to a place like Knave's Ash.

  1. We start by working out how the duct runs and where it can be opened.
  2. Set points along the runs are tested for grease.
  3. We open the panels and scrape out the heaviest grease.
  4. The duct is degreased with the method that suits the grease, from degreasers to hot water or steam.
  5. Readings and pictures are repeated and any section we couldn’t reach is recorded.

Getting ready for the visit

  • Plan for cooking equipment or plant to be off before we arrive
  • Tell us about site rules, permits or sign-in
  • Let us know how we reach the system, including roofs, risers and plant rooms

Get a fixed quote

To get a fixed quote, call 0345 646 2711 or drop us a line and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. We usually come back within one working day.

Ask for a quote

Advice

When to call us in Knave's Ash

Ducts in Knave's Ash gather grease for the same reasons as ducts anywhere: daily cooking hours, the menu and the state of the filters. Under BESA guidance, the minimum interval is 3, 6 or 12 months, by daily cooking hours.

Look out for these warning signs:

  • Hardened, baked-on grease in long horizontal runs
  • Thick deposits at the bottom of a vertical duct
  • Duct runs that can’t be reached
  • Fat dripping from the ductwork

Volunteers running a hall kitchen near Church of the Holy Cross, or anywhere in Knave's Ash, may not know when the extract was last cleaned, and a grease test settles it.

What to look for in a quote

  • If they look at the system before pricing
  • If the quote is a fixed price or an estimate
  • Whether the work can be done while the site is closed
  • Proof of insurance

Questions to ask before you book

Knave's Ash questions

Which fire and rescue service is responsible for Knave's Ash?

Fire safety enforcement in Knave's Ash is handled by Kent Fire and Rescue Service. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.

Which council inspects kitchens in Knave's Ash?

Food hygiene inspections in Knave's Ash are carried out by Canterbury City council. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.

What paperwork do you give after a duct clean?

A full system clean comes with a TR19 certificate and a photo report. The report shows readings, pictures and any sections we couldn’t reach.

What do you do with what you remove?

It’s contained and taken away. Grease, debris and waste water are collected as the work goes on, so it does not spread.

Do we have to stop cooking while the ducts are cleaned?

Out of hours, at a time that suits the kitchen. Long ducts can be split across visits, with the kitchen ready to cook each morning.

What is TR19?

A BESA specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t law, but it’s the benchmark.

How much does ductwork cleaning cost in Knave's Ash?

Size, condition, access and working hours all affect the cost. Call for a fixed quote and we’ll typically reply within one working day.

What’s involved in cleaning extract ducts?

We open each access panel and clean the section it reaches. Heavy grease comes out by hand, and what’s left is degreased, with readings taken before and after.

BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London