Greater London · Ductwork cleaning
Ductwork cleaning in St John's Wood, Greater London
Ductwork cleaning for commercial sites in St John's Wood and across Greater London. CHAS, SafeContractor and ISO 9001, and fully insured.
- Fat dripping from the ductwork
- Grease pooling at the foot of the riser
- A duct clean needed for an insurer
Ductwork cleaning in St John's Wood
Not every duct has enough access panels. TR19 calls for any section we couldn’t reach to be recorded, and we can fit new access panels so it’s cleaned next time. It’s better to know than to assume. The work covers bends and junctions, vertical risers and multi-storey ducts, and common reasons people get in touch are duct runs that can’t be reached and years of grease along the duct floor.
In a London area like St John's Wood, a kitchen extract often passes through shared space on its way out: a riser, a service void, the floors above. A duct fire there can reach parts of the building far from the range, so a regular TR19® clean protects everyone in it.
Each visit ends with a written report and photos, so you have a record of what was done and when. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Where
- St John's Wood (NW8, NW6, NW3)
- Wider area
- Greater London
- Records
- Certificate and photo report
- Price
- A fixed price before we start
- Hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
What your team can do, and what needs us
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, alongside our reports.
What happens if it’s left?
BESA guidance says grease shouldn’t exceed a mean of 200 microns between cleans. Anywhere that reaches 500 microns or more needs immediate spot cleaning. Putting off the clean only pushes readings higher. Planning ahead in St John's Wood lets you pick a quiet night rather than lose a busy one.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before we start.
Why choose Duct Doctor in St John's Wood
- Accredited under CHAS and SafeContractor, with ISO 9001
- We diagnose before we treat
- One number for every site across the South East and London
- Fixed quotes, typically within one working day
Managing agents and facilities teams in St John's Wood
Records are where multi-site compliance often slips. Every visit ends with a dated report and photos, ready to show insurers, fire officers or EHOs.
We also work for facilities teams across offices, schools and healthcare in St John's Wood and across Greater London. Larger estates can be phased building by building to keep disruption down.
Fixed quotes for ductwork cleaning in St John's Wood
The survey tells us what the work involves. The main factors are:
- Whether several sites go on one quote
- The condition of the system
- Whether we need access equipment or extra panels
- Site requirements such as sign-in and permits
We don’t list prices on the website, because each job is priced on what it involves. For a fixed quote, phone us on 0345 646 2711 or drop us a line, and we’ll talk you through it.
What to send for a quote
Before you ask for a quote, gather:
- Any symptoms, from odd noises to smells or leaks
- How we’d reach plant on a roof or in a plant room
- The times we could work without disrupting the site
- The postcode and the type of business
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, you get a fixed price before any work starts.
Ductwork cleaning around St John's Wood
According to Food Standards Agency records, there are about 81 bars, pubs and nightclubs and about 80 hotels, B&Bs and guest houses within about 1.5 miles of central St John's Wood. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Fire safety in St John's Wood falls to London Fire Brigade. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel. Most London extract cleaning happens at night, after the last service.
A hospital like Hospital of St John and St Elizabeth, about under half a mile south, is the kind of site where a kitchen may cook for patients, staff and visitors all day. Volunteers running a hall kitchen near Church of All Souls, or anywhere in St John's Wood, may not know when the extract was last cleaned, and a grease test settles it.
St John's Wood is about 1 mile south of Hampstead, in Greater London. We provide ductwork cleaning for commercial premises of every kind in St John's Wood and the rest of Greater London. 764 places in Greater London are on our list, from busy centres to quieter spots.
All of NW8, NW6 and NW3 is within our area for ductwork cleaning, from the main roads to the quietest streets. Streets in the area include The Lane, Hall Road and Hill Road, all of which we cover for ductwork cleaning. St John's Wood is on the A5205, so it’s easy for us to get to for ductwork cleaning. Close by, we work in South Hampstead (1 mile north), Swiss Cottage (1 mile north), Primrose Hill (1 mile north-east), Lisson Grove (1 mile south) and Haverstock (1 mile north-east). Within a short drive, we also cover London (4 miles south-east), Kensington (3 miles south-west), St Pancras (3 miles east), Shoreditch (4 miles east), Walthamstow (7 miles north-east) and Hoxton (4 miles east).
What’s near St John's Wood
Locally, jobs take us to businesses close to Cecil Sharp House, Primrose Hill and Arnold House School. You will also find Quintin Kynaston Community Academy (under half a mile north-west) and Cafe Med pub (less than half a mile north-west). There’s a railway station in St John's Wood itself: South Hampstead station. Nearby you will also find Hospital of St John and St Elizabeth (within half a mile south) and Montfichet's Tower (3.5 miles south-east). For a walk, there’s The Long Water and Primrose Hill.
How it works
We turn up at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before we start, and floors and nearby surfaces are sheeted. On site, it takes a few hours for a short run, longer for long runs and tall risers. Getting kit into a London building takes planning, so let us know where we can load and park in St John's Wood.
- 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.
- Heavy deposits come out by hand, then each section is degreased.
- We close up, re-test, photograph and record anything out of reach.
How to prepare
- Clear loose items from the work area
- Name a contact who can let us in at the agreed time
- Make sure equipment near the work can be switched off and left to cool
Getting a quote
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Related advice
What the work involves, part by part
Bends and transitions
Grease tends to pile up at elbows. It’s scraped out and degreased, and readings are taken there before and after.
Horizontal duct runs
Flat runs of duct link the canopy to the riser or the outside wall. Grease drops out of the slowing air along them, and we clean them section by section through access panels.
What we’re called out for in St John's Wood
Slow air leaves the most grease behind. 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.
Most sites get in touch after spotting something like this:
- Gaps where access panels were never fitted
- A grease test showing the duct is overdue
- A duct nobody has opened in years
- Thick crusts of old grease along the duct
Bursars and site managers at schools such as George Eliot Primary School tend to book extract cleaning for when the kitchen is empty.
What to look for in a quote
- When they can work, and whether that is outside your opening hours
- Whether inaccessible sections are listed on the report
- What paperwork you get at the end
- Proof of insurance
Nearby places to St John's Wood
What else we do in St John's Wood
Questions from St John's Wood
Which environmental health team covers St John's Wood?
Food hygiene inspections in St John's Wood are carried out by Camden council. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
Can a school canteen extract in St John's Wood be done out of term time?
Yes, holiday work suits schools best. Food Standards Agency records list about 83 schools, colleges and universities with registered kitchens within about a mile and a half of St John's Wood. You can phone us on 0345 646 2711 or drop us a line with the dates the site is empty.
How do you keep the site clean during the work?
We cover floors and nearby surfaces with sheeting before work begins, and waste is contained as we go. At the end, the area is cleaned down.
What happens to the waste?
We take it away when we go. During the work, it’s contained so the area stays clean.
How much does ductwork cleaning cost in St John's Wood?
The cost depends on the size of the system, its condition, access and timing. Call for a fixed quote and we’ll normally reply within one working day.
How long does it take to clean extract ducts?
A short duct can be cleaned in a few hours, while long ducts and tall risers can need more than one visit. Visits are planned out of hours.
Do we have to stop cooking while the ducts are cleaned?
Only while we are working, and we work around you. Most kitchens book overnight or weekend cleans, so no service is lost.
Do you cover St John's Wood?
Yes. Our area takes in London and the counties of South East England, St John's Wood included.