Hertfordshire · Ductwork cleaning
Duct cleaning in Welwyn Garden City
Looking for ductwork cleaning in Welwyn Garden City? We survey first, send you a fixed quote and work around your opening hours, finishing with a written report and photos.
- Readings above 200 microns from a grease thickness test
- Stale grease odours from the duct
- Sections of duct with no access panels
Looking after it afterwards
Think of this as the after-treatment advice, in brief:
- Check readings when the menu changes
- Make sure filters are seated properly
- Do not switch the extract off early
- Store the certificate with the fire risk assessment
The report gives a recommended next clean date, worked out from the grease we found and how long you cook each day, in line with BESA guidance.
Keep to the cleaning interval on the report. If the kitchen starts cooking longer hours, the interval may need to shorten, and grease thickness testing will show it.
How we handle ductwork cleaning in Welwyn Garden City
If the ducts in Welwyn Garden City haven’t been cleaned for a while, or nobody is sure when they were? A few details about the system are a good start when you give us a ring on 0345 646 2711, or email photos, and we’ll send you a fixed quote for ductwork cleaning, usually within one working day. The work covers attenuators, access panels and bends and junctions, and people most often call us about proof of duct cleaning for the insurer and thick crusts of old grease along the duct.
In a town like Welwyn Garden City, most of the kitchen extracts we are asked about belong to restaurants, cafés, pubs, takeaways and school or care home kitchens. Whatever the kitchen, the canopy, filters, duct and fan all collect grease.
We have been trading since 2009, and we’re 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
- Welwyn Garden City (AL7, AL8, AL6)
- Region
- Hertfordshire
- Records
- TR19® certificate and photo report
- Price
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Towns and villages near Welwyn Garden City
Also in Welwyn Garden City
Ductwork cleaning in Welwyn Garden City: the local picture
The FSA’s food hygiene register includes about 11 pubs and bars and about 4 hotels, B&Bs and guest houses across Welwyn Garden City and its immediate surroundings (about a mile and a half). Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Fire safety in Welwyn Garden City falls to 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. Environmental health officers from Welwyn Hatfield council inspect food businesses in Welwyn Garden City. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. A dated certificate in the maintenance file answers the question before it’s asked.
If you run a café or takeaway near Welwyn Garden City station, early starts and late finishes leave little time to clean, so overnight extract cleaning suits. If you look after a school kitchen, at a school such as Peartree Primary School or anywhere near Welwyn Garden City, the holidays are the usual time for a TR19® clean.
Welwyn Garden City is in Hertfordshire. Whatever kind of site you run in Welwyn Garden City, we can take on ductwork cleaning. Visits can be booked for evenings, overnight or weekends so the site keeps running. Welwyn Garden City is one of 381 places in Hertfordshire we cover for commercial clients. You can also see our page for London, about 21 miles away.
Here we cover the AL7, AL8 and AL6 postcode area for ductwork cleaning. Local streets include Church Road, Station Road and Lynmouth Road, all of which we cover for ductwork cleaning. Welwyn Garden City sits on or near the B195 and A1000, so getting to you is simple for evening and night visits. Neighbouring places we cover for ductwork cleaning include Hatfield Hyde (1 mile south), Letty Green (3 miles south-east), West End (3 miles south), Essendon (3 miles south-east) and Staines Green (3 miles east). Within a short drive, we also cover Watford (13 miles south-west), Hemel Hempstead (12 miles west), Stevenage (8 miles north), St Albans (7 miles south-west), Harpenden (7 miles west) and Hitchin (11 miles north). Welwyn Garden City is one of the larger places we cover in Hertfordshire for ductwork cleaning.
Near you in Welwyn Garden City
Typical jobs here are in premises near Stanborough Park, Sir Frederic Osborn School and The Bakehouse pub. For rail, the closest station is Welwyn Garden City station, roughly 0.5 miles west of the centre. Nearby you will also find The Bunker at Hatfield Police Station (2.9 miles south-west) and Queen Elizabeth II Hospital (1.1 miles south). Not far away are Lemsford Springs.
When it’s something else
In fairness, some problems need a different fix:
- A failed fan motor at the end of the duct (a fan repair job)
- Duct sealed behind fixed ceilings or walls
- A damper stuck open in the duct
If you’re not sure, just call us on 0345 646 2711, or email photos and we’ll give you a straight answer before booking.
Parts of the system we cover
- Access panels
- Vertical risers
- Multi-storey ducts
- Attenuators
- Bends and junctions
- Horizontal duct runs
Landlords, agents and facilities managers
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.
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We can quote either party and send the paperwork to whoever needs it.
FAQs for Welwyn Garden City
Which council inspects kitchens in Welwyn Garden City?
That is Welwyn Hatfield council, whose environmental health officers carry out food hygiene inspections in Welwyn Garden City. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Can the work in Welwyn Garden City be done at night or at weekends?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
What happens if you can’t reach some of it?
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.
Will we have to shut during the visit?
Not usually. We need the work area to ourselves while we’re on site, so the visit goes in a quiet slot.
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.
How much notice do you need?
That depends on the slot you want and the size of the job. Tell us your preferred dates when you ask for a quote, and for anything urgent, ring our 24/7 emergency line.
How do you clean inside the ductwork?
Through access panels along the duct. Heavy grease is scraped out by hand, then the surfaces are degreased with a method that suits the deposit, such as degreasers, hot water or steam.
What’s the cleaning interval for extract ductwork?
At least as often as BESA guidance sets for your cooking hours. Heavy use of 12 to 16 hours a day means at least every 3 months, while lighter use can go longer.
When to call us in Welwyn Garden City
A vertical riser can run up several floors. Grease collects on the riser walls and gathers at the bottom, where it can pool. Access along its height is needed to clean it properly.
Most sites get in touch after spotting something like this:
- Thick deposits at the bottom of a vertical duct
- A rancid smell from the extract duct
- Thick crusts of old grease along the duct
- A duct clean needed for an insurer
Volunteers running a hall kitchen near Church Of Saint Francis Of Assisi, or anywhere in Welwyn Garden City, may not know when the extract was last cleaned, and a grease test settles it.
Questions to ask before booking
- If the quote is a fixed price or an estimate
- When the next visit should be, and why
- What hours they’ll be on site
- Exactly which parts of the system are covered
The process
There are three stages on the day: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with pictures. The middle part takes longest, which takes a shift or more, depending on the length of the runs and the number of access points. We arrive in Welwyn Garden City once you’ve closed and leave the site ready for the morning.
- Diagnosis: a survey of the duct’s route, size and access.
- You get a fixed price before work starts.
- Each section is cleaned in turn through its access panel.
- We take extra care at bends and at the foot of risers.
- Readings, pictures and a recommended next clean date complete the job.
Preparing for the visit
- Make sure equipment near the work can be switched off and left to cool
- Tell us where we can park and unload
- Let us know about permits to work or site inductions
Get a fixed quote
To get a fixed quote, give us a ring on 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. A few photos and your last certificate or report help a lot. You will typically have a quote within one working day.
Advice
Why it’s worth doing now in Welwyn Garden City
TR19® isn’t law, but the duty to manage fire risk is. Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and grease in the duct is part of that. Each month of use adds to the build-up, so a site in Welwyn Garden City is better off booking it now.
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all make a difference.
Why us?
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fully insured
- Fixed quotes, usually within one working day
- A written report with photos after every visit
What staff can safely do
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We can diagnose it and quote.