Hertfordshire · Ductwork cleaning
Ductwork cleaning in St Leonards, Hertfordshire
Our technicians work in St Leonards on cleaning of kitchen extract ductwork, horizontal runs and vertical risers through access panels. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- Duct runs with no cleaning record
- Readings above 200 microns from a grease thickness test
- A rancid smell from the extract duct
Ductwork cleaning for kitchens and businesses in St Leonards
Duct Doctor has cleaned kitchen extract ductwork since 2009, working across London and the South East. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and our certificates are issued through the BESCA Vent Hygiene Elite portal. Common call-outs are for grease pooling at the foot of the riser and high readings at a recent grease test, on bends and junctions, attenuators and vertical risers.
In a small place like St Leonards, kitchens are often in older or extended buildings, with long single-storey duct runs, and those horizontal sections are where grease settles. Access, parking and timings are agreed before the day.
A written report with pictures follows each visit, so there’s a dated record of the work. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Where
- St Leonards (HP23)
- Region
- Hertfordshire
- Reporting
- TR19® certificate and photo report
- Quotes
- Fixed quote, usually within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Between visits
Simple habits between visits make a real difference. We recommend:
- Get panels fitted where the duct couldn’t be cleaned
- Keep your cleaning records together
- Make sure filters are seated properly
- Ask for a grease thickness test if the kitchen gets busier
You’ll have a recommended date for the next clean, worked out from the grease we found and how long you cook each day, in line with BESA guidance.
Have access panels fitted where sections can’t be reached. Grease you can reach is grease that gets removed.
Kitchen extracts in St Leonards
We cover St Leonards, about 31 miles from central London, as part of our work across London and the South East. Evening, overnight and weekend visits are all possible. St Leonards is covered by Hertfordshire Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to St Leonards is Chiltern Hospital, about 4.7 miles south. If your kitchen is in a listed or historic building, like the houses around St Leonards (Cholesbury Manor House is about 1.1 miles east), fitting access panels needs care.
St Leonards is about 4 miles north-west of Chesham, in Hertfordshire. Wherever you are in the HP23 postcode area, we cover ductwork cleaning for commercial sites. St Leonards is one of 381 towns, villages and districts in Hertfordshire where we work for ductwork cleaning. Our Milton Keynes page covers sites nearby (20 miles or so).
We work across the HP23 postcode area for ductwork cleaning and the roads nearby. That includes premises on Bottom Road, Gilbert's Hill and Jenkins Lane and nearby roads. We also cover Buckland Common (1 mile east), Cholesbury (1 mile east), Hastoe (1 mile north), Swan Bottom (1 mile south-west) and Lee Common (2 miles south). Within a short drive, we also cover Watford (14 miles south-east), Hemel Hempstead (9 miles east), St Albans (15 miles east), Harpenden (15 miles east), Berkhamsted (5 miles east) and Rickmansworth (12 miles south-east).
Near you in St Leonards
Around St Leonards, our work takes us to kitchens and buildings near White Lion Public House and the streets around them. The closest station to St Leonards is Wendover station, roughly 2.9 miles west of the centre. A little further out are Trenchard Museum (2.2 miles north-west) and Hawridge Court (2.5 miles south-east). Not far away are Dancersend Nature Reserve and Pavis Wood.
FAQs for St Leonards
Who carries out food hygiene inspections in St Leonards?
Food hygiene inspections in St Leonards are carried out by Buckinghamshire council. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
Do you cover smaller places like St Leonards?
Yes, smaller places are covered as well as towns. A survey first, from pictures or a visit, means we arrive with the right kit.
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. Grease thickness testing shows exactly where the duct stands.
Are you accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
What happens if you cannot reach some of it?
We record them on the report, with photos where possible, and we explain what access is needed, such as extra access panels in ductwork.
Do you have a 24/7 line?
Yes. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line and we’ll talk you through the next steps.
What does ductwork cleaning cost?
Size, condition, access and working hours all affect the cost. Ask us for a fixed quote and we will usually reply within one working day.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used and we’ll propose a schedule with a fixed quote.
How the visit works
When we arrive, we check the system against the survey or the pictures you sent. Anything unexpected is raised with you before we go further. After that, the work takes a few hours for a short run, longer for long runs and tall risers. A few photos of the system help us make the most of a visit to a place like St Leonards.
- The duct route is surveyed and every access point found.
- We take grease readings along the route.
- Once the kitchen has closed, we protect the area and open the panels.
- Heavy deposits come out by hand, then each section is degreased.
- Panels are closed, readings and photos repeated, and unreachable sections recorded.
How to prepare
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Allow time for equipment near the work to be turned off and cool down
- Tell us the best time to work, such as after service or at a weekend
How to get a quote
Here’s what helps us quote: the address, the type of site and when it’s open, a few pictures and the last certificate or report, if there is one. Then ring 0345 646 2711 or drop us a line.
Related advice
What staff can safely do
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. That’s our job.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
Landlords, agents and facilities managers
Records are where multi-site compliance often slips. Every visit ends with a dated report and pictures, so you can show an insurer or inspector what was done at each site.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
Why act early in St Leonards
Under BESA guidance, the mean grease level should stay at or below 200 microns between cleans. A reading of 500 microns or more at any point means a spot clean straight away. Putting off the clean only pushes readings higher. Our emergency line runs 24/7, but a planned visit to St Leonards is calmer for everyone.
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you’re unsure, call 0345 646 2711, or email photos for straight advice and a fixed quote.
Why us?
- We are fully insured
- CHAS, SafeContractor and ISO 9001
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fixed quotes from a survey or pictures
Take a look at what affects the cost and our accreditations and certificates.
When something else is needed
In fairness, some problems need a different fix:
- An extract fan that has stopped working
- Fire dampers that don’t close (they need testing and remedials)
- Ductwork that was poorly designed
If in doubt, call 0345 646 2711 or email us and we will say what we think.
What the work covers
- Multi-storey ducts
- Vertical risers
- Access panels
- Bends and junctions
- Horizontal duct runs
- Attenuators
What we are called out for in St Leonards
Wherever the kitchen is, in St Leonards or elsewhere, the duct fills in the same way: daily cooking hours, the menu and the state of the filters. BESA guidance sets minimum intervals of 3, 6 or 12 months depending on daily use.
Look out for any of the following:
- Proof of duct cleaning for the insurer
- A rancid smell from the extract duct
- Duct runs that cannot be reached
- Heavy grease at the base of a riser
Volunteers running a hall kitchen near Church of St Leonard, or anywhere in St Leonards, may not know when the extract was last cleaned, and a grease test settles it.
Questions to ask before you book
- What happens if part of the system cannot be accessed
- Whether they’re fully insured
- If they look at the system before pricing
- How VAT is shown on the quote