Hertfordshire · Ductwork cleaning
Ductwork Cleaning in Tyttenhanger
One call covers ductwork cleaning in Tyttenhanger: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- A rancid smell from the extract duct
- Hardened, baked-on grease in long horizontal runs
- Readings above 200 microns from a grease thickness test
What ductwork cleaning cannot fix
Before booking, it helps to know what’s not included:
- A failed fan motor at the end of the duct (a fan repair job)
- Ductwork that was poorly designed
- Duct sealed behind fixed ceilings or walls
If in doubt, call 0345 646 2711, or send details by email and we’ll say what we think.
What we work on in Tyttenhanger
- Vertical risers
- Attenuators
- Multi-storey ducts
- Bends and junctions
- Access panels
- Horizontal duct runs
How we handle ductwork cleaning in Tyttenhanger
We’ve been trading since 2009, working across London and the South East. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, with each certificate issued through the BESCA portal. We’re often asked to deal with years of grease along the duct floor and smells of old cooking grease from the ductwork, on vertical risers, access panels and attenuators.
In a small place like Tyttenhanger, 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.
The paperwork matters as much as the work. You get a written report with photos after each visit, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Where
- Tyttenhanger (AL4)
- Wider area
- Hertfordshire
- Reporting
- Certificate and photo report
- Price
- Fixed quote, normally within a working day
- When we work
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
What we do, step by step
We are used to working while the site is closed. A lot of visits happen overnight or at weekends, so a kitchen or building can carry on as usual the next day. On site, the work takes from a few hours to more than one visit, depending on duct length and access. In a small place like Tyttenhanger, the journey is planned ahead and the visit arranged around the site’s hours.
- Diagnosis: a survey of the duct’s route, size and access.
- A fixed quote follows, based on what we found.
- We clean section by section, working from panel to panel.
- Bends, risers and the base of each riser get extra attention.
- Readings, photos and a recommended next clean date complete the job.
How to prepare
- Let us know how we reach the system, including roofs, risers and plant rooms
- Plan for cooking equipment or plant to be off before we arrive
- Let us know about parking and loading
Ask for a quote
Here’s what helps us quote: where the site is, what it is and its opening hours, photos of the system and any previous report or certificate. Then phone us on 0345 646 2711, or email photos.
Read more
For landlords and multi-site operators
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
Facilities teams in offices, schools and healthcare sites book us too in Tyttenhanger and across Hertfordshire. Work can be phased by floor, building or site around the people who use them.
Why deal with it now?
Under BESA guidance, the mean grease level should stay at or below 200 microns between cleans. Anywhere that reaches 500 microns or more needs immediate spot cleaning. Putting off the clean only pushes readings higher. Somewhere as small as Tyttenhanger, losing a kitchen or building to a fault is felt by everyone who uses it.
When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account and give you a fixed price before we start.
What you get with us
- CHAS, SafeContractor and ISO 9001
- A written report with photos after every visit
- Fixed quotes, usually within one working day
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Take a look at what affects the cost and how to check a contractor.
How we price ductwork cleaning
The survey tells us what the work involves. We look at:
- How many systems or sites are involved
- A single visit or a regular plan
- The size of the system
- Site requirements such as sign-in and permits
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 work begins.
Helping us quote
There’s no need for technical detail. It helps if you can send:
- The roof, plant room or outside wall the system runs to
- Any symptoms, from odd noises to smells or leaks
- Photos showing the whole system and its surroundings
- Any previous report or certificate
Every quote begins with a look at the system, either from photos and details you send or from a site visit. Then we send a fixed price so you know the cost before any work starts.
What the work involves, part by part
Horizontal duct runs
Horizontal runs carry the extract along ceilings and through voids. They collect grease as the air cools and slows, so each section is cleaned through its access panels.
Bends and transitions
Bends, elbows and changes of size are where grease collects most. The air slows and drops its load, so these points get extra attention.
Tyttenhanger: your questions answered
Can school kitchens in Tyttenhanger be cleaned in the holidays?
Yes. Half-terms and the summer break are the natural time for school work. Around Tyttenhanger, the Food Standards Agency lists about 11 schools and colleges with registered kitchens within a mile and a half or so. You can phone us on 0345 646 2711 or send us an email with the dates the site is empty.
Who enforces fire safety at workplaces in Tyttenhanger?
That is Hertfordshire Fire and Rescue Service. Records of extract cleaning are a sensible thing to have ready if a fire safety officer carries out an audit.
How can I tell if my extract ducts are dirty?
A grease thickness test gives the answer. Readings are taken by Wet Film Thickness Test (WFTT) or Deposit Thickness Test (DTT). BESA guidance says the mean shouldn’t exceed 200 microns, and 500 or more anywhere needs immediate spot cleaning.
Can you clean ductwork with no access panels?
Ductwork needs access to be cleaned. Those parts are listed, and we can install panels so they’re reached next time.
Do I get a certificate for ductwork cleaning?
A full system clean comes with a TR19 certificate and a photo report. The report shows readings, photos and any sections we couldn’t reach.
Do you look at the system first?
Yes. Every job is surveyed first, from your photos and details, or with a visit where needed. Then you get a fixed quote.
What about areas you cannot get to?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
What’s TR19?
BESA’s ventilation hygiene specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t legislation, but it’s the standard people check against.
What we are called out for in Tyttenhanger
A greasy duct is a fire path, in Tyttenhanger as anywhere. Burning grease can carry fire through the ductwork to other rooms or floors, which is why the responsible person needs it under control.
The symptoms we’re asked about most are:
- A duct nobody has opened in years
- High readings at a recent grease test
- Thick crusts of old grease along the duct
- An insurer asking for TR19 evidence
School kitchens, at schools like Nicholas Breakspear School for example, are typically cleaned in the holidays so no lunches are lost.
What your quote should include
- Whether VAT is included
- What paperwork you get at the end
- If they look at the system before pricing
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
Nearby places to Tyttenhanger
What else we do in Tyttenhanger
Grease, kitchens and Tyttenhanger
Food Standards Agency data counts about 39 cafés, restaurants and staff canteens and about 23 sandwich bars and takeaways within 1.5 miles or so of the middle of Tyttenhanger. Behind every canopy among them is a run of ductwork that collects grease out of sight. Tyttenhanger sits within the area of Hertfordshire Fire and Rescue Service. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. Food hygiene inspections in Tyttenhanger are the job of St Albans City council’s environmental health team. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Before-and-after pictures from each clean are a simple way to show the extract is in hand.
Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Tyttenhanger is Hill End Hospital, about 0.9 miles north-west. Where a hall near Church of St Mark, or anywhere in Tyttenhanger, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Tyttenhanger is about 2 miles south-east of St Albans, in Hertfordshire. Tyttenhanger gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with photos. We cover 381 places across Hertfordshire, from busy centres to quieter spots. London is in our area too, around 19 miles away.
Work in AL4 is surveyed, quoted and booked the same way as anywhere else. Whether your site is on Highfield Lane and Tyttenhanger Green or anywhere close by, we can help. We also cover London Colney (1 mile south), Sleapshyde (1 mile north-east), Smallford (2 miles north-east), Broad Colney (2 miles south) and Colney Heath (2 miles east). Within a short drive, we also cover Watford (7 miles south-west), Hemel Hempstead (7 miles west), Stevenage (13 miles north), Welwyn Garden City (6 miles north-east), Harpenden (6 miles north-west) and Hitchin (15 miles north).
Local landmarks in Tyttenhanger
Around Tyttenhanger, our work takes us to kitchens and buildings near The Plough pub, Highfield Park and Windermere Primary School. The nearest railway station is St Albans station, about 1.7 miles north-west. Other landmarks nearby include Hill End Hospital (0.9 miles north-west) and St Albans Musical Museum (1.9 miles north-west). Not far away are Colney Heath Local Nature Reserve and Verulamium Lake.