Hertfordshire · Ductwork cleaning
Shenleybury ductwork cleaning
Specialist ductwork cleaning for Shenleybury: diagnosis first, then a fixed quote, the work and a report with photos. Ask us for a fixed quote.
- Ductwork that has never been cleaned
- High readings at a recent grease test
- Grease seeping out of the duct seams
Do you need ductwork cleaning in Shenleybury?
Damaged or poorly fitted filters let more grease into the duct. The duct then takes grease that the filters should have stopped, and build-up speeds up.
These are the problems we see most often:
- A grease test showing the duct is overdue
- Fat dripping from the ductwork
- A rancid smell from the extract duct
- Ductwork that has never been cleaned
If you look after a school kitchen, at a school such as Clore Shalom School or anywhere near Shenleybury, the holidays are the usual time for a TR19® clean.
Comparing quotes
- When the next visit should be, and why
- Proof of insurance
- Which accreditations they hold, and whether you can check them
- Exactly which parts of the system are covered
About our ductwork cleaning in Shenleybury
In doctor’s terms, the ductwork is the system’s arteries: find the blockages, clear them, then check the flow is right. Grease readings before and after give you the evidence, alongside before and after pictures. The work covers access panels, horizontal duct runs and bends and junctions, and common reasons people get in touch are duct runs that can’t be reached and smells of old cooking grease from the ductwork.
Rural kitchens often have long, low duct runs through a roof space or along an outside wall, where grease settles in the flat sections. Access, parking and timings are agreed before the day.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Location
- Shenleybury (WD7)
- Region
- Hertfordshire
- Reporting
- Certificate plus before-and-after pictures
- Quote
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
How the visit works
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Before we leave, the area is tidied and the paperwork follows. If you can send pictures, we can arrive in Shenleybury knowing what to expect.
- The duct route is surveyed and every access point found.
- We take grease readings along the route.
- Out of hours, the area is protected and the access panels opened.
- Thick grease is scraped out, then the runs and risers are degreased.
- Panels are closed, readings and photos repeated, and unreachable sections recorded.
Getting ready for the visit
- Mention any sign-in, permit or induction we need
- Make sure someone can let us in and lock up afterwards
- Let us know how we reach the system, including roofs, risers and plant rooms
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.
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Shenleybury: your questions answered
Can you work in Shenleybury outside opening hours?
Yes, we can come after you close and finish before you open. It means the site in Shenleybury keeps running as normal. Tell us your opening hours when you ask for a quote.
Which fire authority looks after Shenleybury?
Fire safety enforcement in Shenleybury is handled by Hertfordshire 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.
Can you look after several sites?
Yes. One number covers all your sites across London and the South East, and visits can be set on a regular cycle.
Do you offer emergency callouts?
Yes. There’s a 24/7 emergency line, for problems that cannot wait. Ring any time and tell us what’s happened.
Do you look at the system first?
Yes. Every job is surveyed first, from your pictures and details, or with a visit where needed. Then you get a fixed quote.
How can I tell if my extract ducts are dirty?
Drips, smells and weak extraction are clues, but the only sure way is to measure. A WFTT or DTT reading gives a clear answer.
How much does ductwork cleaning cost in Shenleybury?
Every site is different, so each gets its own fixed quote. For a quote, call us on 0345 646 2711 or send us an email with the site type, opening hours and a few photos.
Is a quote from photos possible?
Usually, yes. Send a few wide pictures plus close-ups of panels, filters or grilles, and a fixed quote typically follows within one working day. Some sites still need a visit, and we’ll say so.
When something else is needed
A few issues sit outside what this work can do:
- Leaking duct joints that need repair
- Ductwork that was poorly designed
- Fire dampers that do not close (they need testing and remedials)
If in doubt, give us a ring on 0345 646 2711 or email us and we will say what we think.
What the work covers
- Access panels
- Horizontal duct runs
- Bends and junctions
- Multi-storey ducts
- Vertical risers
- Attenuators
Looking after it afterwards
Once we’ve finished, these simple steps help:
- Diarise the next duct clean
- Check readings when the menu changes
- Never cook with a filter missing
- Report any grease dripping from duct joints
Every panel we open is refitted when we finish, and the surrounding area is left clean. Waste grease and water are taken away.
Keep to the cleaning interval on the report. A change in cooking hours may change the interval under BESA guidance, and grease thickness testing will show it.
Part by part
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
Grease settles on the floor of a flat duct run. Thick deposits are scraped out by hand before degreasing, then the walls and roof are cleaned too.
Shenleybury kitchens: local notes
The FSA’s data shows about 8 bars, pubs and nightclubs registered within roughly a mile and a half of the centre of Shenleybury. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Shenleybury sits within the area of Hertfordshire 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. Food hygiene inspections in Shenleybury are the job of Hertsmere council’s environmental health team. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Our report lists what was cleaned and when, which is useful to have ready.
Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Shenleybury is Kingsley Green, about 0.7 miles west. Wyllyotts Manor, about 4.1 miles east, is one of the historic houses near Shenleybury; if you run event catering at a venue like that, cleans can be booked between functions.
Shenleybury is about 3 miles north of Borehamwood, in Hertfordshire. Sites in Shenleybury get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where needed and a written report with pictures. Shenleybury is one of 381 places in Hertfordshire we cover for commercial clients. We also work in London, about 16 miles from Shenleybury.
All of WD7 is within our area for ductwork cleaning, from the main roads to the quietest streets. Streets in the area include Hugo Gryn Way, Farm Close and Shenleybury, and we cover them all for ductwork cleaning. Nearby, we also carry out ductwork cleaning in Broad Colney (1 mile north-west), London Colney (1 mile north), Tyttenhanger (2 miles north), Colney Heath (3 miles north-east) and North Mymms (3 miles east). Within a short drive, we also cover Watford (5 miles south-west), Hemel Hempstead (8 miles north-west), Stevenage (15 miles north), St Albans (4 miles north-west), Welwyn Garden City (8 miles north-east) and Harpenden (8 miles north).
Local landmarks in Shenleybury
Around Shenleybury, our work takes us to kitchens and buildings near The Black Lion pub, Manor Lodge School and North Mimms Park and the streets around them. The closest station to Shenleybury is Radlett station, roughly 1.8 miles south-west of the centre. Well-known places in the area include Hilfield Castle (4 miles south-west) and The Maltings (3.8 miles north-west). For a walk, there’s Verulamium Lake and Broad Colney Lakes.
What affects the cost of ductwork cleaning
You will get a fixed price before we start. It’s based on:
- What state the system is in
- When the work can happen, such as evenings, overnight or weekends
- Parking and loading at the site
- Access, including roofs, risers and ceiling voids
Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all play a part.
What we need to know
Before you ask for a quote, gather:
- Wide photos of the system and the area around it
- Any previous report or certificate
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- The postcode and the type of business
Want a quote for ductwork cleaning? Please give us a ring on 0345 646 2711, or send details by email and tell us about the site. We will explain what we’d do and send a fixed quote before anything is booked.
Also near Shenleybury
What else we do in Shenleybury
In-house cleaning or a specialist?
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, next to our reports.