Hertfordshire · Extract fan cleaning
Allen's Green extract fan cleaning
Specialist extract fan cleaning for Allen's Green: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- A fan motor running hot under a coat of grease
- A noisy fan that has got louder over time
- A fan that has never been cleaned
Allen's Green: your questions answered
Can you work in Allen's Green outside opening hours?
Yes, we can come after you close and finish before you open. The site is handed back ready to open. When you phone us on 0345 646 2711 or use the quote form, mention when the site is quiet.
Which fire authority looks after Allen's Green?
That’s Hertfordshire Fire and Rescue Service. TR19® isn’t law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
Do you look at the system first?
Yes, every time. Diagnosis comes before treatment: the survey tells us what the system needs and how to reach it and the fixed quote is built on it.
Can you look after several sites?
Yes. Tell us the addresses and what each needs and you will get one fixed quote.
What happens to the waste?
It leaves the site with us at the end of the visit. While we work, it’s kept contained so the area stays clean.
Will I get photos of the cleaned fan?
Photos, notes on condition and a recommended next date. File it with your other extract records.
Will we have to shut during the visit?
Not typically. Visits are timed for when the area is closed, such as overnight or at a weekend, so the site can carry on as normal.
What about areas you can’t get to?
We never leave them off the paperwork. You’ll know exactly which parts weren’t reached and why, and we can quote to improve the access.
How we handle extract fan cleaning in Allen's Green
Duct Doctor has been cleaning kitchen extract fans since 2009. As a BESCA Vent Hygiene Elite member, we clean to BESA TR19® Grease, with CHAS, SafeContractor and ISO 9001 and full insurance. Common call-outs are for hot, greasy smells near the fan and a fan shaking on its mounts, across roof-mounted fans, axial fans and in-line fans.
Work in a small place like Allen's Green starts with a call to agree access and timings, 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.
A written report with photos follows every visit, 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.
- Location
- Allen's Green (CM21)
- Region
- Hertfordshire
- Paperwork
- Certificate plus before-and-after photos
- Price
- Fixed quote, usually within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Part by part
Inline duct fans
Hidden in a ceiling void, an inline fan is easily missed. We find it during the survey and include it in the clean.
Impellers and blades
Grease on the leading edges of the blades cuts the fan’s efficiency. Scraping and degreasing them restores their shape, so the fan can run as intended.
What extract fan cleaning can’t fix
In fairness, some problems need a different fix:
- A failed motor or worn bearings (that needs a fan repair or replacement)
- Grease in the duct and canopy before the fan (those need a full TR19 clean)
- Wiring faults to the fan
If in doubt, ring 0345 646 2711 or email us and we will say what we think.
Parts of the system we cover
- Fan housings
- Centrifugal fans
- Roof-mounted fans
- In-line fans
- Discharge points
- Axial fans
Multi-site and managed buildings
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
Facilities teams in offices, schools and healthcare sites book us too in Allen's Green and across Hertfordshire. Larger estates can be phased building by building around the people who use them.
Signs you need extract fan cleaning in Allen's Green
Each blade collects a slightly different amount. The difference throws the impeller off balance, wearing bearings and mounts. What starts as a grease problem can become a mechanical one.
If you notice any of these, it’s worth a diagnosis:
- An extract fan that vibrates or rattles
- Hot, greasy smells near the fan
- Thick grease on the impeller and casing
- Weak extraction at the canopy
Volunteers running a hall kitchen near Former Church of St Anne, or anywhere in Allen's Green, may not know when the extract was last cleaned, and a grease test settles it.
What to look for in a quote
- How areas they cannot reach will be recorded
- Whether VAT is included
- What’s included in the scope, part by part
- If they look at the system before pricing
What your team can do, and what needs us
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That’s our job.
How we price extract fan cleaning
The diagnosis comes before the price. We look at:
- When the work can happen, such as evenings, overnight or weekends
- Parking and loading at the site
- The condition we find in the survey
- How easy every part is to reach
Combining work into one visit or one programme can make for a more efficient booking. Tell us about everything you’d like looked at and we’ll price it together.
What we need to know
To help us quote quickly, please include:
- A few general shots of the system
- The paperwork from the last visit, if you have it
- Where the site is and what kind of site it is
- When the site is open and when it’s quiet
To get a fixed quote, ring 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 typically come back within one working day.
Nearby places to Allen's Green
What else we do in Allen's Green
What we do, step by step
When we arrive, we check the system against the survey or the pictures you sent. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes an hour or two for one fan, longer when it’s hard to reach. If the van will struggle with a lane or gateway near Allen's Green, let us know and we will plan around it.
- First we check the fan’s condition and how it sounds.
- With the fan isolated, the housing is opened.
- The impeller is cleaned blade by blade so it runs balanced.
- We clean the casing, the outlet and around the motor.
- The fan goes back into service with a report on its condition.
Before we arrive
- Agree a time when the area can be out of use
- Plan for cooking equipment or plant to be off before we arrive
- Have your last certificate or report to hand
Getting a quote
There’s no standard price list, because every site is different. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To start, call 0345 646 2711 or use the quote form.
Advice
Extract fan cleaning in Allen's Green: the local picture
According to Food Standards Agency records, there are about 3 bars, pubs and nightclubs within 1.5 miles or so of the middle of Allen's Green. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Allen's Green sits within the area of Hertfordshire Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. It’s East Hertfordshire council that sends environmental health officers to food businesses in Allen's Green. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Keeping each certificate and photo report on file helps show the extract is looked after.
A hospital like Herts and Essex Hospital, about 3.4 miles north-east, is the kind of site where a kitchen may cook for patients, staff and visitors all day. Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Much Hadham Palace is about 2.2 miles north-west), access may need planning.
Allen's Green is about 3 miles south-west of Bishop's Stortford, in Hertfordshire. For extract fan cleaning in and around Allen's Green, please call us on 0345 646 2711, or send details by email for a fixed quote. We work across South East England and London, including Allen's Green. Allen's Green is one of 381 places in Hertfordshire we cover for extract fan cleaning. You can also see our page for Chelmsford, roughly 17 miles from Allen's Green.
Postcode districts we cover here for extract fan cleaning: CM21. If your site is just outside Allen's Green, we cover Thorley (2 miles north-east), High Wych (2 miles south), Spellbrook (2 miles east), Sawbridgeworth (2 miles south-east) and Thorley Street (2 miles north-east). Within a short drive, we also cover Stevenage (13 miles west), Bishop's Stortford (3 miles north-east), Welwyn Garden City (13 miles west), Hoddesdon (8 miles south-west), Cheshunt (11 miles south-west) and Hatfield (15 miles west).
What’s near Allen's Green
For rail, the closest station is Sawbridgeworth station, roughly 2.5 miles south-east. A little further out are Herts and Essex Hospital (3.4 miles north-east) and Harlow Mill (3.2 miles south). Open spaces near Allen's Green include Thorley Wash nature reserve.