Hertfordshire · Ductwork cleaning
Duct cleaning in Digswell
Need ductwork cleaning in Digswell? We diagnose first, fix the price and book the work around your hours, then sign off with a report and pictures.
- Duct runs that can’t be reached
- A duct clean needed for an insurer
- Readings above 200 microns from a grease thickness test
Leave it or put it right?
Booking the duct clean in Digswell now keeps it a planned job. The work takes a few hours for a short run, longer for long runs and tall risers, done out of hours so the kitchen keeps cooking. A planned visit to Digswell fits your hours; an emergency doesn’t.
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 make a difference.
What you get with us
- A written report with pictures after every visit
- Fully insured
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- In business since 2009
See what affects the cost and our accreditations and certificates.
Ductwork cleaning in Digswell
We’ve been trading since 2009, working across London and the South East. As a BESCA Vent Hygiene Elite member, our duct cleaning is done to BESA TR19® Grease, with each certificate issued through the BESCA portal. If you have a rancid smell from the extract duct and duct runs that can’t be reached, we can put it right.
Kitchens around a place like Digswell are often in older buildings or single-storey extensions, where the duct may cross a roof void or climb an outside wall. Flat runs collect grease and need proper access to clean.
Nothing is signed off by word of mouth: a written report, dated and illustrated with pictures, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.
- Place
- Digswell (AL8, AL7, AL6)
- Wider area
- Hertfordshire
- Records
- Certificate and photo report
- Quote
- A fixed quote up front
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Nearby places to Digswell
Also in Digswell
Digswell: your questions answered
Which environmental health team covers Digswell?
In Digswell, it’s Welwyn Hatfield council that carries out food hygiene inspections. 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 Digswell?
It’s Hertfordshire Fire and Rescue Service, which covers Digswell. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.
What happens to the waste?
It leaves the site with us when we go. While we work, it’s kept contained so the area stays clean.
Do you offer emergency callouts?
Yes. Our emergency line runs 24/7, for problems that cannot wait. Call us any time and explain what’s happened.
How far ahead should we book?
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 if it’s an emergency, call us any time.
Do you survey before quoting?
Yes. Photos often do the job, and larger or hidden systems get a visit.
What’s the cleaning interval for extract ductwork?
BESA guidance sets minimum intervals by daily cooking hours: every 3 months for 12 to 16 hours, 6 months for 6 to 12 hours and 12 months for 2 to 6 hours. Grease readings may show it needs doing sooner.
Which kinds of sites do you work on?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. Work is timed around how each site runs.
Looking after it afterwards
No system stays clean for ever, but care slows the build-up. Our tips:
- Keep your cleaning records together
- Keep the fan on while anything is cooking
- Flag drips from the duct straight away
- Keep to the interval on the report
Keep the certificate and report with the fire risk assessment. It’s the evidence an insurer or inspector may ask for, and the photos make the duct’s condition easy to see.
Watch for warning signs between cleans: drips from the ductwork, stale smells or a noisy fan. Testing will show whether any section has reached 500 microns.
What happens on the day
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Anything that needs to be off for the work is switched off and left to cool first, and the area around the work is covered and protected. The work itself takes anything from a few hours to several visits, depending on the length of duct. A site near Digswell typically has room to park, so the questions are about access to the system and your hours.
- Diagnosis: a survey of the duct’s route, size and access.
- A fixed quote follows, based on what we found.
- Each section is cleaned in turn through its access panel.
- We take extra care at bends and at the foot of risers.
- The duct is signed off with readings, photos and a next clean date.
Getting ready for the visit
- Let us know how we reach the system, including roofs, risers and plant rooms
- Let us know about parking and loading
- Arrange a key holder or contact on site
Getting a quote
Quoting starts with a diagnosis, either from photos and details you send or from a site visit. After that, you get a fixed price for the work so you know the cost before work begins.
Read more
Part by part
Bends and transitions
The join where the canopy meets the duct is a common hotspot. We clean it from the canopy side or through a nearby panel.
Attenuators and discharge
Some systems have attenuators to reduce noise, but they can hold grease in their linings. They’re cleaned where possible and recorded if not.
Grease, kitchens and Digswell
According to Food Standards Agency records, there are about 16 pubs, bars and clubs within 1.5 miles or so of the middle of Digswell. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Digswell is covered by Hertfordshire Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. Environmental health officers from Welwyn Hatfield council inspect food businesses in Digswell. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. A dated certificate in the maintenance file answers the question before it’s asked.
If you cook for passing trade around Welwyn North station, the extract can be cleaned between your last and first customer. A hospital like Queen Elizabeth II Hospital, about 2.5 miles south, is the kind of site where a kitchen may cook for patients, staff and visitors all day. Church and community hall kitchens, near Digswell Village Church or anywhere around Digswell, are easy to forget, but their extracts collect grease like any other.
Digswell is about 1 mile north of Welwyn Garden City, in Hertfordshire. We carry out ductwork cleaning for commercial premises of every kind in Digswell and the rest of Hertfordshire. Digswell is one of 381 towns, villages and districts in Hertfordshire we cover for commercial clients. London is in our area too, around 23 miles away.
Postcode districts we cover here for ductwork cleaning: AL8, AL7 and AL6. Streets in the area include Adele Avenue, Station Road and Hertford Road, and we cover them all for ductwork cleaning. If your site is just outside Digswell, we cover Haldens (1 mile south-east), Harmer Green (1 mile north-east), Burnham Green (2 miles north-east), Oaklands (2 miles north) and Tewin (2 miles east). Within a short drive, we also cover Watford (14 miles south-west), Hemel Hempstead (12 miles west), Stevenage (6 miles north), St Albans (7 miles south-west), Harpenden (6 miles west) and Hitchin (10 miles north).
Local landmarks in Digswell
Around Digswell, our work takes us to kitchens and buildings near Hedgehog pub, Monk's Walk School and Danesbury Park and the streets around them. There’s a railway station in Digswell itself: Welwyn North station. Well-known places in the area include Howard Centre (1.3 miles south) and Datchworth Museum (2.6 miles north-east). Open spaces near Digswell include Tewin Orchard and Hopkyns Wood.
What ductwork cleaning can’t fix
It’s worth knowing the limits before booking:
- A failed fan motor at the end of the duct (a fan repair job)
- Ductwork that was poorly designed
- Fire dampers that do not close (they need testing and remedials)
If in doubt, phone us on 0345 646 2711, or email photos and we’ll say what we think before you book.
Parts of the system we cover
- Access panels
- Multi-storey ducts
- Attenuators
- Horizontal duct runs
- Vertical risers
- Bends and junctions
Staff cleaning versus specialist work
Staff cleaning and specialist work are not the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that is where we come in.
Managing agents and facilities teams in Digswell
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.