Hertfordshire · Extract fan cleaning
Extract Fan Cleaning in Letchworth
Extract fan cleaning for Letchworth, with a survey first and a report with pictures at the end. Ask us for a fixed quote.
- Less air being pulled from the kitchen
- Burning smells from the fan area
- An extract fan with no cleaning record
Extract fan cleaning in Letchworth
Duct Doctor has been cleaning kitchen extract fans since 2009. As a BESCA Vent Hygiene Elite member, we clean to BESA TR19® Grease, and we are fully insured, with CHAS, SafeContractor and ISO 9001. If you’re dealing with grease stains around the discharge and weak extraction at the canopy, we can put it right.
Kitchens in towns like Letchworth are often in older buildings that were never designed for them, which can mean awkward duct routes, long flat runs and not enough access panels. Where the duct cannot be reached, new panels can be fitted, and anything left uncleaned is recorded on the report.
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 are fully insured.
- Location
- Letchworth (SG6)
- Region
- Hertfordshire
- Paperwork
- TR19® certificate and photo report
- Price
- A fixed quote up front
- Hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
What extract fan cleaning cannot fix
An honest diagnosis matters more to us than a booking, so here’s what extract fan cleaning will not do:
- A failed motor or worn bearings (that needs a fan repair or replacement)
- A faulty speed controller or isolator
- A cracked or broken impeller (it needs replacing)
If in doubt, ring 0345 646 2711, or send details by email and we’ll say what we think before booking.
Parts of the system we cover
- Axial fans
- Fan housings
- Roof-mounted fans
- In-line fans
- Centrifugal fans
- Discharge points
What your team can do, and what needs us
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
Common problems we fix in Letchworth
The fan sits at the end of the grease’s journey. The grease that is left lands on the blades and the casing, and the spinning blades fling it onto the walls of the housing.
Look out for any of the following:
- A fan that has never been cleaned
- Grease stains around the discharge
- A noisy fan that has got louder over time
- A heavily greased fan housing
For kitchens close to Letchworth Garden City station, where the day often starts early and ends late, the extract can be cleaned overnight.
Comparing quotes
- Whether the work can be done while the site is closed
- When the next visit should be, and why
- Whether the figure could change on the day
- Which accreditations they hold, and whether you can check them
What affects the cost of extract fan cleaning
Your quote is based on your site. We take into account:
- Any permits to work or inductions
- The size of the system
- Where the site is and how we reach it
- Working hours and out-of-hours timing
The price reflects the work, not guesswork. That is why we survey first, from photos or on site, and why the quote is fixed before any work starts.
Helping us quote
You do not need the technical terms. Just send:
- The site address and the type of premises
- Wide pictures of the system and the area around it
- Your last certificate, test record or report
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
To get a fixed quote, call us on 0345 646 2711 or drop us a line and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. You will usually have a quote within one working day.
Also near Letchworth
More services for Letchworth
Aftercare tips
Results last longer with the right care. Here’s what we suggest:
- Run the extract throughout cooking
- Note any drop in extraction at the canopy
- Keep the grease filters clean and in place
- Do not store items in front of the fan’s access point
The area around the fan is left clean, with waste grease removed. On a roof or outside wall, we leave the surrounding area tidy.
Do not run the kitchen with the extract off. Air that keeps moving carries vapour out rather than letting it settle, so keeping it running helps keep it clean.
How it works
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. The visit itself takes an hour or two for one fan, longer when it’s hard to reach. A few pictures of the system and its access points help us plan a visit in Letchworth.
- We find the fan and check how it’s reached and how it’s isolated.
- With the fan isolated, the housing is opened.
- We remove the grease from the blades, impeller and casing.
- Blades, housing and the area around the motor are degreased with care.
- The fan is put back into service, checked and photographed.
How to prepare
- Let us know when the site is closed or quiet
- Name a contact who can let us in at the agreed time
- Have your last certificate or report to hand
Getting a quote
For extract fan cleaning in Letchworth, ring 0345 646 2711 or send us an email. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. A fixed quote normally follows within one working day.
Related advice
What extract fan cleaning looks like in Letchworth
Food Standards Agency data counts about 70 cafés, restaurants and staff canteens and about 32 takeaways and sandwich shops within about 1.5 miles of central Letchworth. Where they cook under a canopy, an extract fan is pulling grease-laden air through its blades every service. In Letchworth, food businesses are inspected by environmental health officers from North Hertfordshire council. Extraction counts as kitchen equipment, so its condition can come up on the day. Before-and-after pictures from each clean are a simple way to show the extract is in hand. Letchworth sits within the area of Hertfordshire Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.
Where a hall near Church of St Paul, or anywhere in Letchworth, hosts lunch clubs or events, its extract gathers grease just as a café’s does. Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Letchworth is Fairfield Hospital, about 1.9 miles north-west.
Letchworth is about 5 miles north of Stevenage, in Hertfordshire. For extract fan cleaning in and around Letchworth, it’s easy to get a fixed quote: please call 0345 646 2711 or use the quote form. We work across South East England and London, Letchworth included. Our area takes in 381 places across Hertfordshire, large and small. You can also see our page for Milton Keynes, about 24 miles away.
Extract fan cleaning in SG6 follows the same survey, fixed quote and written report as everywhere else we cover. If you need extract fan cleaning at premises on Station Road, Willian Church Road and Rowland Way or a nearby road, our technicians can take on the work. With the A505 and B656 close by, Letchworth is easy for our technicians to reach for extract fan cleaning. We also cover Letchworth Garden City (1 mile west), Norton (1 mile north-east), Willian (1 mile south), Walsworth (2 miles south-west) and Poets Estate (2 miles south-west). Further out, we also cover Stevenage (5 miles south), Welwyn Garden City (12 miles south), Harpenden (12 miles south-west), Hitchin (3 miles south-west), Hatfield (15 miles south) and Hertford (14 miles south-east).
Around Letchworth
Locally, jobs take us to businesses close to Norton School, The Highfield School and Three Magnets pub and the streets around them. Letchworth has its own railway station: Letchworth Garden City station. A little further out are Fairfield Hospital (1.9 miles north-west) and First Garden City Heritage Museum (less than half a mile south). For a walk, there’s Purwell Ninesprings.
FAQs for Letchworth
Who is the fire and rescue service for Letchworth?
Hertfordshire Fire and Rescue Service is the fire and rescue service for Letchworth. 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 work at weekends in Letchworth?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Letchworth needn’t be disturbed. Tell us your opening hours when you ask for a quote.
Where does the waste go?
It’s contained and taken away. We collect grease, debris and waste water as we go, so it does not spread.
Which sectors do you work in?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.
Are you fully insured?
Yes. Full insurance covers our work and have been trading since 2009.
What if the fan needs more than a clean?
Cleaning removes grease, but it can’t fix worn parts. We repair and replace extract fans as well, with a fixed quote first.
Why is my extract fan noisy?
Grease on the blades and housing is one of the usual causes, because it unbalances the fan. It can also be wear in the bearings or motor, which our report will flag.
Do you survey before quoting?
Yes, always. We diagnose before we treat: the survey shows what needs doing and what access we need and the fixed quote is built on it.
Different parts, different methods
Wall fans
Smaller kitchens may extract through a fan on an outside wall. It’s isolated, opened and cleaned inside and out.
Roof-mounted fans
Roof fans also discharge grease onto the roof around them and we check the area around the outlet. Heavy staining is noted on the report.