Hertfordshire · Extract fan cleaning
Extract fan cleaning in Rush Green, Hertfordshire
Professional extract fan cleaning in and around Rush Green, timed so the site keeps working and signed off in writing with photos.
- Grease stains around the discharge
- Weak extraction at the canopy
- A heavily greased fan housing
Extract fan cleaning for kitchens and businesses in Rush Green
Every TR19® Grease clean includes the extract fan, but a fan can also need attention on its own, especially when it has started to vibrate or sound rough. Where only the fan is cleaned, the report says so. If you have rough running from the extract fan and hot, greasy smells near the fan, we can help, from roof-mounted fans, axial fans and in-line fans onwards.
For a kitchen in or near Rush Green, the visit is planned around opening hours and the journey, and the clean covers the whole system, as it would anywhere: canopy to discharge, then a TR19® certificate and a photo report.
For insurers and inspectors, the record counts. That’s why every job is written up in a report with photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Location
- Rush Green (SG4)
- Wider area
- Hertfordshire
- Records
- Certificate plus before-and-after photos
- Quotes
- Fixed quote, usually within a working day
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
Extract fan cleaning around Rush Green
There are about 27 restaurants, cafés and works canteens and about 9 sandwich bars and takeaways in Rush Green and the streets around it, up to about 1.5 miles out, according to the Food Standards Agency’s register. Any of those kitchens with a canopy relies on a fan that gathers grease as it runs. Fire safety in Rush Green falls to 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. Kitchens in Rush Green 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. Before-and-after pictures from each clean are a simple way to show the extract is in hand.
For schools such as The Thomas Alleyne School, kitchen extract cleaning is usually booked for the holidays, when the canteen is closed. Healthcare kitchens, like those at hospitals such as Lister Hospital (about 2.2 miles north-east), often cook for long hours, which puts them in BESA’s heavier-use bands.
Rush Green is about 3 miles west of Stevenage, in Hertfordshire. We carry out extract fan cleaning for businesses, landlords and public buildings in Rush Green and the rest of Hertfordshire. We cover 381 places across Hertfordshire, large and small. There’s also a page for Milton Keynes, roughly 24 miles from Rush Green.
Extract fan cleaning in SG4 is surveyed, quoted and booked the same way as anywhere else. We also cover the places around Rush Green: Langley Bottom (1 mile south), Langley (1 mile south-east), St Paul's Walden (1 mile south-west), Old Knebworth (2 miles south-east) and Whitwell (2 miles south-west). We also work in nearby towns such as Hemel Hempstead (14 miles south-west), Stevenage (3 miles east), St Albans (11 miles south), Welwyn Garden City (7 miles south), Harpenden (7 miles south-west) and Hitchin (4 miles north).
What’s near Rush Green
Typical jobs here are in premises near Concerts at Knebworth House and Farmers Boy Public House. The nearest railway station is Stevenage station, about 1.6 miles east. A little further out are Lister Hospital (2.2 miles north-east) and Wymondley Castle (3 miles north). The countryside around Rush Green includes Ridlins Mire.
What your team can do, and what needs us
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We will take a look and send you a fixed quote.
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, which is where we come in.
Rush Green questions
Which environmental health team covers Rush Green?
That is North Hertfordshire council, whose environmental health officers carry out food hygiene inspections in Rush Green. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
Who is the fire and rescue service for Rush Green?
Hertfordshire Fire and Rescue Service is the fire and rescue service for Rush Green. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
How often does the fan need cleaning?
The fan follows the full system’s interval, from every 3 months for 12 to 16 hours of cooking a day to every 12 months for 2 to 6 hours. Readings may show it needs cleaning more often.
Is the fan isolated during cleaning?
We isolate the fan, so the kitchen cannot cook while we work. That’s why fan cleans are done out of hours, and the kitchen is ready when we leave.
How long will it take to clean the fan?
That depends on the fan’s size, its position and how much grease there is. Typically it takes an hour or two for one fan, longer when it’s hard to reach.
Do you survey before quoting?
Yes, every time. We diagnose before we treat: the survey tells us what the system needs and how to reach it, and the quote is based on that.
Does the law say we must follow TR19?
No, not in itself. Insurers, fire officers and EHOs look to TR19® as the benchmark, and many insurance policies ask for proof of TR19® cleaning. The law behind it is the Fire Safety Order 2005, which applies in England and Wales.
When something else is needed
Extract fan cleaning can’t fix everything, and we’ll tell you before we start. It won’t put right:
- An undersized fan that cannot cope
- Wiring faults to the fan
- A fan that won’t start
If in doubt, ring 0345 646 2711 or email us and we will say what we think before booking.
What we work on in Rush Green
- Roof-mounted fans
- In-line fans
- Axial fans
- Fan housings
- Discharge points
- Centrifugal fans
Between visits
A little care between visits keeps the system in better shape. We recommend:
- Don’t store items in front of the fan’s access point
- Make sure the fan is included each time
- Look for grease stains near the discharge
- File the fan’s report with your other records
When the fan is cleaned as part of a full TR19® Grease clean, a TR19 certificate is issued through the BESCA Vent Hygiene Elite portal. If only the fan is cleaned, the photo report says so.
Fewer grease particles reaching the fan means less build-up. Clean, well-seated filters are the fan’s first protection, and replace any that are damaged.
What happens on the day
We start by comparing what we find with the survey or your photos. If anything is different, we talk it through with the person on site before carrying on. From there, it takes an hour or two for one fan, longer when it’s hard to reach. A few photos of the system help us make the most of a visit to a place like Rush Green.
- We locate the fan and plan how to reach and isolate it.
- We isolate the power before opening the housing.
- 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
- Let us know about permits to work or site inductions
- Let us know when the site is closed or quiet
How to get a quote
For a fixed quote, phone us on 0345 646 2711 or send us an email with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. We normally come back within one working day.
Related advice
How the job changes from site to site
Wall fans
A wall fan pushes the air straight outside. We isolate it, then clean the blades and housing.
Roof-mounted fans
Many kitchen extracts end at a fan on the roof. They’re cleaned where safe access allows, and anything we can’t reach is recorded.
Why deal with it now?
A fan that fails mid-service can stop a kitchen cooking. Many fan problems start with grease, so cleaning the fan helps keep it working. We also offer a 24/7 emergency callout if the worst happens. Rural sites can’t always move to another kitchen or room when something fails.
Every site is different, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all play a part.
Why choose Duct Doctor in Rush Green
- In business since 2009
- Fixed quotes, typically within one working day
- Each visit written up, with pictures
- A single point of contact for sites across the South East and London
Take a look at how cleaning jobs are priced or how to check a contractor.
What we’re called out for in Rush Green
A fan in Rush Green builds up grease at a rate set by the kitchen, not the location: daily hours and the amount of frying and grilling. BESA guidance sets minimum intervals of 3, 6 or 12 months for the whole system by daily use.
Look out for any of the following:
- A fan coated in grease inside its housing
- Weak extraction at the canopy
- A noisy fan that has got louder over time
- Burning smells from the fan area
If you run catering at a historic house or estate in the area (Knebworth House is about 2.1 miles south-east), event kitchens in older buildings often have awkward duct runs that need planning.
Before booking anyone
- Which accreditations they hold, and whether you can check them
- Whether the price is fixed
- If they look at the system before pricing
- What happens if part of the system cannot be accessed