Kent · Kitchen extract cleaning
Kitchen extract cleaning in Knockholt, Kent
Kitchen extract cleaning for Knockholt and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.
- A smoky, hot kitchen with weak extraction
- A kitchen taken over without any extract records
- Grease drips onto cooking equipment
Between visits
After the visit, a few habits help the work last:
- Clean grease off the canopy surfaces regularly
- Make sure every filter is fitted before cooking
- Switch the fan on before cooking starts
- Don’t let the canopy gutters overflow
Any section without access is marked on the report. That is part of an honest TR19 clean, not a failing, and we can fit access panels so it’s reached next time.
Clean the grease filters often, not just on clean day. Clean, well-fitted filters catch more fat before it reaches the duct, which slows build-up further down the system.
How we handle kitchen extract cleaning in Knockholt
A kitchen extract system is far more than the canopy you can see. Beyond the filters run the plenum, the ducts and risers, the fan and the point where air leaves the building, and grease settles in every one of them. Our clean follows the air from canopy to discharge, cleaning to BESA TR19® Grease. If you are dealing with grease drips onto cooking equipment and missing paperwork after a change of operator, we can help, from discharge points, horizontal duct runs and extract fans onwards. When a restaurant in Knockholt asks for duct cleaning, it’s nearly always the kitchen extract they mean, and that’s exactly what we do: the whole run from hood to roof, cleaned to TR19® Grease.
Access decides how thorough a clean can be. Where a duct run has no panels, we say so on the report and can fit new ones.
In a small place like Knockholt, kitchens are often in older or extended buildings, with long single-storey duct runs, where grease settles in the flat sections. Access, parking and timings are agreed before the day.
We’ve been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Where
- Knockholt (TN14)
- Region
- Kent
- Paperwork
- TR19® certificate and photo report
- Quotes
- A fixed price before any work starts
- Hours
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Places near Knockholt
More services for Knockholt
What we do, step by step
At the end of the visit, someone from your team can look over the work with us. Anything we couldn’t reach or that needs attention is pointed out there and then, and the same goes into the written report. All told, the work takes one visit for most kitchens, while large or complex systems may need more than one. If you can send pictures, we can arrive in Knockholt knowing what to expect.
- First comes a survey of the whole system, by photos or a visit.
- We measure the grease at set points along the system, then give you a fixed price.
- Once the kitchen has closed and the equipment has cooled, we sheet and protect the area.
- The whole route is cleaned, from the canopy through the ductwork to the fan and the discharge.
- Readings and pictures are taken again, and you receive a TR19 certificate and photo report.
Getting ready for the visit
- Arrange a key holder or contact on site
- Dig out any earlier paperwork for the system
- Let us know how we reach the system, including roofs, risers and plant rooms
Get a fixed quote
If you need kitchen extract cleaning in Knockholt, call 0345 646 2711 or email us. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. We typically send a fixed quote within one working day.
Advice
When to call us in Knockholt
In Knockholt, as anywhere, grease gathers where the air slows down: long horizontal runs, bends, the base of risers and around the fan. Cooler sections of duct collect the most.
Keep an eye out for any of the following:
- Proof of cleaning requested by an insurer
- Poor airflow at the canopy
- Heavy grease build-up inside the duct runs
- A kitchen taken over without any extract records
Down House, about 2.7 miles north-west, is one of the historic houses near Knockholt; if you run event catering at a venue like that, cleans can be booked between functions.
Before booking anyone
- When the next visit should be, and why
- Whether the quote shows VAT
- Exactly which parts of the system are covered
- Proof of accreditation you can verify
Kitchen extracts in Knockholt
Kent Fire and Rescue Service covers Knockholt. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. Food hygiene inspections in Knockholt are the job of Sevenoaks council’s environmental health team. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Keeping each certificate and photo report on file helps show the extract is looked after.
If you run a church or community hall kitchen, near St Katharine's Church or elsewhere in Knockholt, its extract still collects grease from every lunch and event. Healthcare kitchens, like those at hospitals such as Orpington Hospital (about 3.6 miles north), often cook for long hours, which puts them in BESA’s heavier-use bands.
Knockholt is about 4 miles north-west of Sevenoaks, in Kent. Across the TN14 area, we can carry out kitchen extract cleaning at your premises. Knockholt is one of 922 towns, villages and districts in Kent we cover for kitchen extract cleaning. Our London page covers sites nearby (16 miles or so).
Every address in TN14 is within our area for kitchen extract cleaning, from the main roads to the quietest streets. Whether your site is on Main Road and Blueberry Lane or a nearby road, our technicians can take on the work. We also cover the places around Knockholt: Knockholt Pound (1 mile north-east), Halstead (2 miles north-east), Sepham Heath (2 miles north-east), Pratt's Bottom (2 miles north) and Twitton (3 miles east). Larger places within reach include Dartford (11 miles north-east), Sevenoaks (4 miles south-east), Royal Tunbridge Wells (14 miles south-east), Gravesend (14 miles north-east), Tonbridge (11 miles south-east) and Northfleet (13 miles north-east).
Around Knockholt
We work in commercial kitchens and buildings around The Three Horseshoes pub, among other places. The nearest railway station is Knockholt station, roughly 2.7 miles north-east of the centre. A little further out are Orpington Hospital (3.6 miles north) and Otford Heritage Centre (3.9 miles east). For a walk, there’s Betsom's Hill and Downe Bank.
When something else is needed
A few issues sit outside what this work can do:
- A grease trap that needs emptying
- A fan motor or bearings that have failed (that needs a fan repair or replacement)
- Faulty fire dampers in the duct
Not sure which it is? You can give us a ring on 0345 646 2711 or use the quote form and we will tell you honestly before you book.
What we work on in Knockholt
- Extract fans
- Discharge points
- Plenums and filters
- Canopies and hoods
- Horizontal duct runs
- Vertical risers
Landlords, agents and facilities managers
Facilities teams in offices, schools and healthcare sites book us too in Knockholt and across Kent. Work can be phased by floor, building or site around the people who use them.
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.
Common questions in Knockholt
Can you come to Knockholt after we close?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. When you call 0345 646 2711 or use the quote form, mention when the site is quiet.
Which fire and rescue service is responsible for Knockholt?
That’s Kent Fire and Rescue Service. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
How long does a kitchen extract clean take?
It takes a single shift for most kitchens, with long duct runs and tall risers needing more time. We will confirm the time when we quote.
What do you do to protect the area?
By covering it before any work starts. We keep the work contained and leave the area clean.
What about areas you cannot get to?
They’re marked on the report. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
Can you come out in an emergency?
Yes. There’s a 24/7 emergency line for anything that can’t wait until a planned visit. Call us any time and explain what’s happened.
Will I get a certificate after the clean?
A TR19 certificate, plus a full photo report. It records what was cleaned, what wasn’t accessible and the recommended next clean date.
What’s the right cleaning interval for a kitchen extract?
BESA guidance sets minimums by daily cooking hours: every 3 months for 12 to 16 hours, 6 months for 6 to 12 hours and 12 months for 2 to 6 hours. Measured grease levels set the real interval.
Leave it or put it right?
After a fire, one of the first questions is often when the extract was last cleaned. Many policies require cleaning to TR19, and an insurer can refuse or reduce a claim without proof. A certificate in the file answers that question. With notice, the visit to Knockholt can be fitted around your bookings and events.
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 make a difference.
Why choose Duct Doctor in Knockholt
- In business since 2009
- One contact for all your sites in London and the South East
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- CHAS, SafeContractor and ISO 9001
See our cost guide and our accreditations.
Part by part
Schools, hospitals and care homes
School, hospital and care home kitchens often have fixed hours and long holidays, so cleans can be booked when the kitchen is closed. The certificate goes straight into the site’s maintenance records.
Grease filters
A filter that’s missing or bent lets grease straight past. We check they fit as they should when we refit them, and flag any that do not.