Hertfordshire · Ductwork cleaning
Leavesden ductwork cleaning
For cleaning of kitchen extract ductwork, horizontal runs and vertical risers through access panels in Leavesden, one call is all it takes: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- High readings at a recent grease test
- Grease seeping out of the duct seams
- Gaps where access panels were never fitted
Ductwork cleaning in Leavesden, done properly
Many ducts were installed with too few access doors. Where a section can’t be reached, TR19 expects it to be recorded on the report, and we can fit new access panels so it’s cleaned next time. An honest report beats a guess. The work covers attenuators, multi-storey ducts and vertical risers, and common reasons people get in touch are proof of duct cleaning for the insurer and grease leaking from duct joints.
In a smaller place like Leavesden, the kitchens with extract systems are more likely to be a pub, a café, a takeaway or a school or care home kitchen than a big restaurant. A kitchen that cooks fewer hours still builds up grease, so cleaning is planned around how much it cooks and what the readings show.
The paperwork matters as much as the work. You get a written report with pictures after each visit, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.
- Location
- Leavesden (WD25, WD5)
- Region
- Hertfordshire
- Reporting
- Certificate plus before-and-after photos
- Quote
- A fixed price before we start
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Checked
- 30 October 2026
What affects the cost of ductwork cleaning
You’ll get a fixed price before we start. It takes into account:
- The size of the system
- Parking and loading at the site
- Whether we need access equipment or extra panels
- The number of sites or systems
Several systems or sites on one quote can make for a more efficient booking. Tell us about everything you’d like looked at, and you’ll get one fixed quote.
What to send for a quote
When you call or email, these details help:
- The postcode and the type of business
- Photos showing the whole system and its surroundings
- Problems your staff have spotted
- The times we could work without disrupting the site
Getting a quote does not take long. Send a few details and pictures, and we usually reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Do you need ductwork cleaning in Leavesden?
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.
Any of these means the system needs a check-up:
- A duct clean needed for an insurer
- Grease leaking from duct joints
- Ductwork that has never been cleaned
- Readings above 200 microns from a grease thickness test
Church and community hall kitchens, near Church of All Saints or anywhere around Leavesden, are easy to forget, but their extracts collect grease like any other.
Questions to ask before booking
- Whether VAT is included
- Proof of accreditation you can verify
- Whether they’re fully insured
- Exactly which parts of the system are covered
How it works
Protection comes first: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. The work on site takes from a few hours to more than one visit, depending on duct length and access, and we clear up before we go. Because the survey comes first, a visit to Leavesden can usually be finished without a second trip.
- We map the duct route and check where the access panels are.
- Set points along the runs are tested for grease.
- Through the access panels, thick grease is removed by hand first.
- The duct is degreased with the method that suits the grease, from degreasers to hot water or steam.
- Readings and photos are repeated and any section we couldn’t reach is recorded.
Preparing for the visit
- Find the previous report, if there is one
- Let us know about permits to work or site inductions
- Plan for cooking equipment or plant to be off before we arrive
Get a fixed quote
We do not publish a price list, because no two systems are the same. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, call us on 0345 646 2711 or send us an email.
Advice
Part by part
Access panels
Access panels are the doors that let us into the duct. Without them, parts of the duct cannot be reached and the report has to say so.
Bends and transitions
The join where the canopy meets the duct is a common hotspot. We reach it from the plenum side where possible.
Multi-site and managed buildings
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’re happy to quote for all of it.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
Staff cleaning versus specialist work
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. That’s our job.
Staff cleaning and specialist work are not the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
Grease, kitchens and Leavesden
The FSA’s food hygiene register includes about 11 bars, pubs and nightclubs within about 1.5 miles of central Leavesden. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Food hygiene inspections in Leavesden are the job of Three Rivers council’s environmental health team. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Our report lists what was cleaned and when, which is useful to have ready. Leavesden sits within the area of 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.
Term dates shape school work: for a school like Alban Wood Primary School and Nursery, an extract clean fits neatly into a half-term or summer break. If your kitchen is in a listed or historic building, like the houses around Leavesden (High Elms Manor is about 0.4 miles north-east), fitting access panels needs care.
Leavesden is about 2 miles north of Watford, in Hertfordshire. We provide ductwork cleaning for businesses, landlords and public buildings in Leavesden and the rest of Hertfordshire. We cover 381 places across Hertfordshire, large and small. Our London page covers sites nearby (19 miles or so).
Work in WD25 and WD5 follows the same survey, fixed quote and written report as everywhere else we cover. We cover sites on Forest Road, Langley Lane and Sheepcot Lane and nearby roads. Leavesden is on the A405, which makes it straightforward for our technicians to reach for out-of-hours visits. Neighbouring places we cover for ductwork cleaning include Garston (1 mile south-east), Meriden (1 mile south-east), North Watford (2 miles south), Watford (2 miles south) and Aldenham (2 miles south-east). Further out, we also cover Hemel Hempstead (5 miles north-west), St Albans (5 miles north-east), Welwyn Garden City (11 miles north-east), Harpenden (9 miles north), Cheshunt (15 miles east) and Hatfield (8 miles north-east).
Near you in Leavesden
Locally, jobs take us to businesses close to Woodside Playing Fields and Francis Combe Academy. For rail, the closest station is Garston station, roughly 1 mile south-east. A little further out are Hertfordshire Fire Brigade Museum (3.1 miles south) and Hilfield Castle (4.1 miles south-east). For a walk, there’s Longspring Wood and Verulamium Lake.
Leavesden: your questions answered
Will you come out to Leavesden?
Yes. Villages and rural sites across the South East are part of our work, Leavesden included. Let us know about access, parking and anything unusual about getting there when you book.
Can you come to Leavesden after we close?
Yes, out-of-hours work is a big part of what we do. It means the site in Leavesden keeps running as normal. When you call 0345 646 2711, or email photos, mention when the site is quiet.
Do we lose a day’s trading?
Not usually. Visits are timed for when the area is closed, such as overnight or at a weekend, so the site can carry on as normal.
What shows that the ducts need a clean?
A grease thickness test gives the answer. Using a Wet Film Thickness Test or Deposit Thickness Test, we check the grease at set points. A mean above 200 microns, or 500 microns at any point, means it’s due.
How much does ductwork cleaning cost?
The cost depends on the size of the system, its condition, access and timing. Call for a fixed quote and we will typically reply within one working day.
Which kinds of sites do you work on?
Any commercial site with kitchens or ventilation, from a single café to a large school. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Is TR19 cleaning required by law?
No, not in itself. TR19® is the benchmark insurers, fire officers and EHOs check against, and many insurance policies ask for proof of TR19® cleaning. The legal duty sits in the Regulatory Reform (Fire Safety) Order 2005 in England and Wales.
How long will the duct clean take?
Duct length, access and grease levels all affect it. As a guide, it takes a shift or more, depending on the length of the runs and the number of access points.
Other services in Leavesden
What happens if it’s left?
A fire in a greasy duct is hard to reach and hard to stop. It can travel through the ductwork to other parts of the building, which is why the duct matters as much as the canopy. Light use slows the build-up but doesn’t stop it.
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, which can make the next visit longer. If you’re unsure, call us on 0345 646 2711 or use the quote form for straight advice and a fixed quote.
Why choose Duct Doctor in Leavesden
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- In business since 2009
- Fixed quotes, typically within one working day
- One number for every site across the South East and London
Read how cleaning jobs are priced and our accreditations and certificates.