Hertfordshire · Ductwork cleaning
Welwyn ductwork cleaning
Need ductwork cleaning in Welwyn? We diagnose first, fix the price and book the work around your hours, finishing with a written report and photos.
- Grease pooling at the foot of the riser
- Ductwork that has never been cleaned
- Thick crusts of old grease along the duct
Your questions about ductwork cleaning in Welwyn
Can the work in Welwyn be done at night or at weekends?
Yes, we can come after you close and finish before you open. The work in Welwyn can fit around your hours. Tell us your opening hours when you ask for a quote.
Can you get to a site in Welwyn?
Yes. Welwyn is within the area we cover across London and the South East. The journey is planned ahead, so a few details about the route help.
What does ductwork cleaning cost?
We do not publish prices, because the cost depends on the job: the size of the system, its condition, access and when we can work. We fix the price before any work starts.
Can one contract cover all our sites?
Yes. Send the list of sites and the work at each and we will quote them together.
What happens to the waste?
It leaves the site with us when we go. During the work, it’s contained to keep the area clean.
Do you install duct access panels?
Yes, we fit access panels where the duct needs them. It means more of the duct can be cleaned next time, and the report will show where they’re needed.
Will I get a report after the ducts are cleaned?
You get a photo report with before and after pictures, and a full TR19 clean also comes with a certificate issued through the BESCA Vent Hygiene Elite portal. Keep both in the maintenance log.
How often does extract ductwork need cleaning?
It depends mostly on daily cooking hours. Heavy use of 12 to 16 hours a day means at least every 3 months, while lighter use can go longer.
How we handle ductwork cleaning in Welwyn
We treat ductwork like a doctor treats arteries: find the blockages, clear them, then check the flow is right. Grease readings before and after give you the evidence, alongside before and after photos. If you have duct runs that can’t be reached and heavy grease at the base of a riser, we can put it right.
Around a smaller place like Welwyn, kitchen extracts tend to belong to pubs, cafés, takeaways and school or care home kitchens. Quieter kitchens still collect grease in the duct, just more slowly, so the interval is set by hours of use and grease readings.
It’s worth checking any contractor’s accreditations. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Place
- Welwyn (AL6)
- Region
- Hertfordshire
- Records
- TR19® certificate and photo report
- Quotes
- A fixed price before work begins
- When we work
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
What ductwork cleaning looks like in Welwyn
According to Food Standards Agency records, there are about 11 pubs, bars and clubs within 1.5 miles or so of the middle of Welwyn. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Kitchens in Welwyn get their food hygiene inspections from Welwyn Hatfield council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Welwyn 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.
Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Welwyn is Queen Elizabeth II Hospital, about 3.5 miles south. Volunteers running a hall kitchen near Parish Church of St Mary, or anywhere in Welwyn, may not know when the extract was last cleaned, and a grease test settles it.
Welwyn is about 2 miles north-west of Welwyn Garden City, in Hertfordshire. We carry out ductwork cleaning for businesses, landlords and public buildings in Welwyn and the rest of Hertfordshire. 381 places in Hertfordshire are on our list, from busy centres to quieter spots. For sites nearby, see our London page, about 23 miles away.
Here we cover the AL6 postcode area for ductwork cleaning. We cover sites on High Street, London Road and Mimram Place and the roads around them. We also cover the places around Welwyn: Monkswood (1 mile south-east), Ayot St Peter (1 mile south-west), Ayot Green (1 mile south-west), Pottersheath (2 miles north) and Codicote (2 miles north-west). Larger places within reach include Watford (14 miles south-west), Hemel Hempstead (12 miles south-west), Stevenage (6 miles north), St Albans (7 miles south-west), Harpenden (6 miles west) and Hitchin (9 miles north).
Around Welwyn
Typical jobs here are in premises near Stable Door pub, Danesbury Park and Homerswood Primary and Nursery School and the streets around them. The closest station to Welwyn is Welwyn North station, roughly 1.1 miles south-east of the centre. Nearby you’ll also find Queen Elizabeth II Hospital (3.5 miles south) and Datchworth Museum (2.7 miles north-east). Not far away are Mardley Heath.
For landlords and multi-site operators
Keeping records across a portfolio is half the battle. Each visit produces a dated report with pictures, ready to show insurers, fire officers or EHOs.
We also work for facilities teams across offices, schools and healthcare across Hertfordshire. Larger estates can be phased building by building to keep disruption down.
What affects the quote in Welwyn
Before we fix a price, we need to know a few things. We check:
- How big the system is
- Site requirements such as sign-in and permits
- Travel, parking and unloading
- The condition we find in the survey
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 play a part.
Asking for a quote
You do not need the technical terms. Just send:
- The times we could work without disrupting the site
- The roof, plant room or outside wall the system runs to
- Any symptoms, from odd noises to smells or leaks
- The postcode and the type of business
Need a price for ductwork cleaning? Please call us on 0345 646 2711, or send details by email and tell us about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
How the job changes from site to site
Bends and transitions
The join where the canopy meets the duct is a common hotspot. We reach it from the plenum side where possible.
Horizontal duct runs
Flat runs of duct link the canopy to the riser or the outside wall. They collect grease as the air cools and slows, and we clean them section by section through access panels.
Towns and villages near Welwyn
Other services in Welwyn
Do you need ductwork cleaning in Welwyn?
A vertical riser can run up several floors. Grease collects on the riser walls and gathers at the bottom as liquid grease runs down. Access along its height is needed to clean it properly.
Most sites get in touch after spotting something like this:
- Hardened, baked-on grease in long horizontal runs
- Duct runs that cannot be reached
- Grease seeping out of the duct seams
- Grease pooling at the foot of the riser
Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Digswell House is about 0.9 miles south-east), access may need planning.
Questions to ask before booking
- What insurance they carry
- What paperwork you get at the end
- Whether inaccessible sections are listed on the report
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
Looking after it afterwards
Think of this as the after-treatment advice, short and simple:
- Run the extract fan throughout service
- Ask for a grease thickness test if the kitchen gets busier
- Keep access panels clear of stored items
- Never cook with a filter missing
After the clean, the same points are tested again, so the report shows the before and after figures. Before and after pictures sit next to the numbers.
Book the next duct clean before the date passes. If the kitchen starts cooking longer hours, the interval may need to shorten, and grease thickness testing will show it.
What we do, step by step
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before we start, and the area around the work is covered and protected. The work itself takes a shift or more, depending on the length of the runs and the number of access points. Your opening hours decide when we come to Welwyn, not ours.
- The duct route is surveyed and every access point found.
- We take grease readings along the route.
- Out of hours, the area is protected and the access panels opened.
- Thick grease is scraped out, then the runs and risers are degreased.
- We close up, re-test, photograph and record anything out of reach.
Preparing for the visit
- Have your last certificate or report to hand
- Mention any parking or loading restrictions
- Move anything stored near the system
Get a fixed quote
The quickest way to a quote is to send pictures: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.
Read more
What your team can do, and what needs us
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.