Hertfordshire · Ductwork cleaning

Ductwork cleaning in Clothall, Hertfordshire

Ductwork cleaning for Clothall and the surrounding area: diagnosis first, then a fixed quote, the work and a report with pictures. Call for a fixed quote.

  • Thick crusts of old grease along the duct
  • Grease seeping out of the duct seams
  • Smells of old cooking grease from the ductwork

Ductwork cleaning in Clothall

Keeping the system healthy

Results last longer with the right care. Here’s what we suggest:

  • Ask us about extra access panels where sections cannot be reached
  • Have the grease measured if cooking hours go up
  • Keep to the interval on the report
  • Store the certificate with the fire risk assessment

File the paperwork in the maintenance log. It’s the evidence an insurer or inspector may ask for, and the pictures make the duct’s condition easy to see.

Extra access panels mean more of the duct gets cleaned each time. Grease you can reach is grease that gets removed.

Ductwork cleaning in Clothall

The ductwork is where an extract clean is won or lost. 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 grease seeping out of the duct seams and duct runs with no cleaning record, we can put it right.

Somewhere as small as Clothall, commercial kitchens are few: perhaps a pub, a school or care home kitchen, or a hall used for events. Every one of them still needs its extract kept clear of grease.

Good records are part of the job. You get a written report with photos after every visit, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.

Location
Clothall (SG7)
Region
Hertfordshire
Reporting
TR19® certificate and photo report
Quote
A fixed price before we start
Hours
After hours by arrangement; emergencies any time
Phone
0345 646 2711
Updated
30 October 2026
Before and after view down the inside of a rectangular extract duct

Landlords, agents and facilities managers

Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.

We regularly work with managing agents. Tell us the site, the work and the access arrangements and we will come back with a fixed quote.

What a clean will not put right

A few issues sit outside what this work can do:

  • Parts of the duct with no way in
  • A worn-out fan that needs replacing
  • Faulty fire dampers

Not sure which it is? You can call us on 0345 646 2711, or email photos and we will tell you honestly before booking.

What we work on in Clothall

  • Multi-storey ducts
  • Access panels
  • Attenuators
  • Horizontal duct runs
  • Bends and junctions
  • Vertical risers

Why it’s worth doing now in Clothall

A fire in a greasy duct is hard to reach and hard to stop. The duct can carry it to rooms, floors or roof spaces well away from the kitchen, so cleaning the duct is as important as cleaning the hood. It’s worth booking a check, because nobody sees inside a duct day to day.

A single site or a whole portfolio, we price it on the same basis: the work involved, the access and the timing. The price is fixed before we start.

What you get with us

  • Each visit written up, with pictures
  • A fixed price before any work starts
  • We’re fully insured
  • One contact for all your sites in London and the South East

Read our cost guide and how to check a contractor.

How it works

On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool first, and the area around the work is covered and protected. The work itself takes a few hours for a short run, longer for long runs and tall risers. We agree a date with you, plan the drive to Clothall and turn up when the site is quiet.

  1. The duct route is surveyed and every access point found.
  2. Grease thickness is measured at set points.
  3. Out of hours, the area is protected and the access panels opened.
  4. Heavy deposits come out by hand, then each section is degreased.
  5. We close up, re-test, photograph and record anything out of reach.

Preparing for the visit

  • Name a contact who can let us in at the agreed time
  • Let us know about permits to work or site inductions
  • Dig out any earlier paperwork for the system

How to get a quote

The quickest way to a quote is to send photos: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.

Get a price

Read more

Ductwork cleaning around Clothall

Food Standards Agency records list about 3 restaurants, cafés and canteens within 1.5 miles or so of the middle of Clothall. Behind every canopy among them is a run of ductwork that collects grease out of sight. Kitchens in Clothall get their food hygiene inspections from North Hertfordshire council. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. A dated certificate in the maintenance file answers the question before it’s asked. Clothall is covered by Hertfordshire 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.

Bursars and site managers at schools such as Weston Primary School tend to book extract cleaning for when the kitchen is empty. Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Lister Hospital is the nearest hospital to Clothall, about 4.1 miles south-west.

Clothall is about 3 miles east of Letchworth, in Hertfordshire. Whether your site is in the middle of Clothall or further out, we cover ductwork cleaning for every kind of premises, from a single unit to a large public building. Clothall is one of 381 towns, villages and districts in Hertfordshire where we work for commercial clients. There’s also a page for Milton Keynes, about 27 miles away.

Work in SG7 follows the same survey, fixed quote and written report as everywhere else we cover. We also cover the places around Clothall: Weston (1 mile south-west), Wallington (2 miles north-east), Baldock (2 miles north-west), St Nicholas (3 miles south) and Rooks Nest (4 miles south-west). Larger places within reach include Stevenage (4 miles south), Bishop's Stortford (15 miles south-east), Welwyn Garden City (12 miles south), Harpenden (14 miles south-west), Hitchin (5 miles west) and Hatfield (15 miles south).

Near you in Clothall

We work in commercial kitchens and buildings around The Knights Templar School, among other places. The nearest railway station is Baldock station, about 2.2 miles north-west. A little further out are First Garden City Heritage Museum (3.1 miles west) and Clothall Castle (under half a mile south-east). Open spaces near Clothall include Pryor's Wood.

Map of Clothall © OpenStreetMap contributors

Common problems we fix in Clothall

Damaged or poorly fitted filters let more grease into the duct. More grease reaches the ductwork than it should and it fills faster.

Most sites get in touch after spotting something like this:

  • Sections of duct with no access panels
  • Grease seeping out of the duct seams
  • Hardened, baked-on grease in long horizontal runs
  • Heavy grease at the base of a riser

Where a hall near Church of St Mary, or anywhere in Clothall, hosts lunch clubs or events, its extract gathers grease just as a café’s does.

Questions to ask before booking

  • Whether the whole system is included, or only the parts that are easy to reach
  • When the next visit should be, and why
  • What happens if part of the system cannot be accessed
  • If the quote is a fixed price or an estimate

Questions to ask before you book

Part by part

Bends and transitions

Grease tends to pile up at elbows. It’s scraped out and degreased, and test it before and after.

Access panels

Panels have to seal properly once they’re closed, so grease and air stay inside the duct. A damaged panel is noted on the report.

Clothall: your questions answered

Do you work overnight in Clothall?

Yes. We work evenings, overnight and at weekends. The work in Clothall can fit around your hours. Your opening times are the first thing we ask for.

Is Clothall within the area you cover?

Yes, Clothall is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.

How long does ductwork cleaning take?

It depends on the length of the duct, the number of access panels and how much grease there is. As a guide, it takes a few hours for a short run, longer for long runs and tall risers.

Do we lose a day’s trading?

Not typically. Booking the work out of hours means the site can carry on as normal. Bigger sites can be done in stages to keep things running.

Who has the legal duty for fire safety?

It depends on the building. The Fire Safety Order 2005 puts the duty on the responsible person, which can be the employer, the owner, a landlord, an FM or a managing agent.

Can you fit access panels in our ductwork?

Yes, we fit access panels where the duct needs them. It means more of the duct can be cleaned next time, and the report will show where they’re needed.

What should I send you?

Just the basics: where it is, what kind of site, when it’s open and the access. Photos and the last report help too. After that, simply ring 0345 646 2711 or drop us a line.

How do you clean inside the ductwork?

Each section is cleaned through its own panel. 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