Hertfordshire · Extract fan cleaning
Extract Fan Cleaning in St Ippolyts
For extract fan cleaning in St Ippolyts, one call is all it takes: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Grease around the motor and its mounts
- A fan coated in grease inside its housing
- Grease escaping from the fan outlet
Extract fan cleaning for kitchens and businesses in St Ippolyts
A fan never collects grease in a neat, even layer. Uneven build-up unbalances the impeller, which brings vibration, noise and extra wear on the bearings and motor. A thorough clean removes the cause. Common call-outs are for weak extraction at the canopy and hot, greasy smells near the fan, across discharge points, roof-mounted fans and centrifugal fans.
For a kitchen in or near St Ippolyts, the visit is planned around opening hours and the journey, and the clean itself is the same full TR19® job as in any town: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Where
- St Ippolyts (SG4)
- Region
- Hertfordshire
- Records
- Certificate plus before-and-after photos
- Price
- A fixed price before work begins
- When we work
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Updated
- 30 October 2026

Landlords, agents and facilities managers
We regularly work with managing agents. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
Keeping records across a portfolio is half the battle. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
Between visits
No system stays clean for ever, but care slows the build-up. Our tips:
- Keep each photo report with the maintenance log
- Book the fan into every full TR19 clean
- Note any drop in extraction at the canopy
- Watch for grease marks around the outlet
A full system clean includes a TR19 certificate from the BESCA Vent Hygiene Elite portal. If only the fan is cleaned, the photo report says so.
Listen to the fan. New noise or vibration often means grease is building on the impeller, and catching it early keeps it a cleaning job.
What a clean will not put right
Some problems need a different service or another trade:
- A faulty speed controller or isolator
- A fan that was never right for the kitchen
- An impeller that’s bent or split
Not sure which it is? You can ring 0345 646 2711, or send details by email and we will tell you honestly.
Where we work
- Roof-mounted fans
- In-line fans
- Axial fans
- Discharge points
- Fan housings
- Centrifugal fans
Different parts, different methods
Kitchens with long cooking hours
When a busy kitchen’s fan fails, cooking stops. Keeping the fan clean is part of avoiding that, and our 24/7 emergency callout is there if it happens anyway.
Wall fans
A wall fan pushes the air straight outside. We isolate it, then clean the blades and housing.
What we do, step by step
Night work is normal for us. A lot of visits happen overnight or at weekends, so the site can open as normal afterwards. The visit itself takes a few hours where there are several fans or heavy deposits. Rural roads and tight entrances are worth telling us about before a visit to St Ippolyts.
- We locate the fan and plan how to reach and isolate it.
- It’s isolated so it can’t run while we work.
- Grease is scraped off the impeller blades and casing.
- Blades, housing and surrounds are degreased with care around the electrics.
- It’s closed up, run, checked and photographed for the report.
How to prepare
- Let us know how we reach the system, including roofs, risers and plant rooms
- Find the previous report, if there is one
- Agree a time when the area can be out of use
Get a fixed quote
We don’t publish a price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, and then give you a fixed quote. To get going, give us a ring on 0345 646 2711, or send details by email.
Related advice
Why act early in St Ippolyts
Vibration from an unbalanced impeller does not stay small. It wears bearings and mounts and can lead to a breakdown, which may leave the kitchen without extraction. A planned clean beats an emergency. In a place like St Ippolyts, ductwork and fans are easy to forget until something goes wrong.
Every site is different, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
Why choose Duct Doctor in St Ippolyts
- Trading since 2009
- We’re fully insured
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Fixed quotes from a survey or photos
See how cleaning jobs are priced or how to check a contractor.
Also near St Ippolyts
More services for St Ippolyts
St Ippolyts questions
Can you get to a site in St Ippolyts?
Yes, smaller places are covered as well as towns. Photos of the system and directions to the site help us plan the visit.
Who carries out food hygiene inspections in St Ippolyts?
In St Ippolyts, it’s North Hertfordshire council that carries out food hygiene inspections. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
Is the fan isolated during cleaning?
With the fan isolated, the extract isn’t running. We work evenings, overnight or weekends, and the kitchen is ready when we leave.
Can the work be done while we’re closed?
Yes. Much of our work happens in the evening, overnight or at weekends, so you don’t have to close during trading.
What does TR19 mean?
BESA’s ventilation hygiene specification in two main parts: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It isn’t law, but it’s the benchmark.
Do you have a 24/7 line?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line, and we will advise on what to do next.
How long is a fan clean?
It takes a few hours where there are several fans or heavy deposits. We’ll confirm the time when we quote.
What about areas you can’t get to?
We never leave them off the paperwork. The report says which parts couldn’t be reached and why, and we can quote to improve the access.
How we price extract fan cleaning
The survey tells us what the work involves. We look at:
- When the work can happen, such as evenings, overnight or weekends
- Site requirements such as sign-in and permits
- A single visit or a regular plan
- Where the site is and how we reach it
What you pay depends on how big the system is, the condition it’s in and access to every part of it. You get a fixed price before any work starts, so you know where you stand.
Helping us quote
You don’t need the technical terms. It helps if you can send:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The site address and the type of premises
- Wide pictures of the system and the area around it
- The times we could work without disrupting the site
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and many jobs can be priced from that alone.
Grease, kitchens and St Ippolyts
The Food Standards Agency lists about 17 bars, pubs and nightclubs and about 3 hotels, B&Bs and guest houses as registered food businesses within about 1.5 miles of central St Ippolyts. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. The fire and rescue service for St Ippolyts is 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. Kitchens in St Ippolyts get their food hygiene inspections from North Hertfordshire council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Keeping each certificate and photo report on file helps show the extract is looked after.
Knebworth House, about 4.4 miles south-east, is one of the historic houses near St Ippolyts; if you run event catering at a venue like that, cleans can be booked between functions. Where a hall near Church of St Ippolyts (church of England), or anywhere in St Ippolyts, hosts lunch clubs or events, its extract gathers grease just as a café’s does. If you look after a school kitchen, at a school such as St Ippolyts Church of England Aided Primary School or anywhere near St Ippolyts, the holidays are the usual time for a TR19® clean.
St Ippolyts is about 2 miles south of Hitchin, in Hertfordshire. Whether your site is in the middle of St Ippolyts or further out, extract fan cleaning is available to all kinds of commercial premises, from small sites to large estates. Our Hertfordshire coverage runs to 381 places, and St Ippolyts is one of them. You can also see our page for Milton Keynes, about 23 miles away.
All of SG4 is within our area for extract fan cleaning, from the main roads to the quietest streets. We cover sites on Ashbrook Lane, Brookend Lane and Stevenage Road and the roads around them. Neighbouring places we cover for extract fan cleaning include Sperberry Hill (1 mile south), St Ibbs (1 mile south-west), Gosmore (1 mile west), Little Almshoe (1 mile south) and Titmore Green (1 mile east). Larger places within reach include Hemel Hempstead (15 miles south-west), Stevenage (4 miles south-east), St Albans (13 miles south), Welwyn Garden City (9 miles south), Harpenden (9 miles south-west) and Hatfield (12 miles south).
What’s near St Ippolyts
We work in commercial kitchens and buildings around Hitchin Girls' School, Butts Close and The Bird in Hand pub. St Ippolyts’s nearest station is Hitchin station, about 1.6 miles north of the centre. Nearby you will also find Wymondley Castle (1.4 miles north-east) and Lister Hospital (2 miles east). The countryside around St Ippolyts includes Markham's Hill and Purwell Ninesprings.