Hertfordshire · Ductwork cleaning
Duct cleaning in Childwick Green
For ductwork cleaning in Childwick Green, one call is all it takes: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Grease seeping out of the duct seams
- Sections of duct with no access panels
- Ductwork that has never been cleaned
Common problems we fix in Childwick Green
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 one of these:
- Thick crusts of old grease along the duct
- Fat dripping from the ductwork
- Stale grease odours from the duct
- Ductwork that has never been cleaned
Healthcare kitchens, like those at hospitals such as St Albans City Hospital (about 1.6 miles south), often cook for long hours, which puts them in BESA’s heavier-use bands.
Questions to ask before booking
- Whether VAT is included
- Whether they’re fully insured
- What records you’ll receive afterwards
- Which accreditations they hold, and whether you can check them
Ductwork cleaning in Childwick Green, done properly
Every duct has its own route. Some run a short distance to an outside wall, others climb several floors to the roof. We map the route during the survey, so we know where to get in and how long it will take. If you’re dealing with fat dripping from the ductwork and a duct clean needed for an insurer, we can put it right.
Rural kitchens often have long, low duct runs through a roof space or along an outside wall, and those horizontal sections are where grease settles. We agree access and timings in advance.
For insurers and inspectors, the record counts. So every job comes with a written report and photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Location
- Childwick Green (AL3)
- Region
- Hertfordshire
- Reporting
- Certificate and photo report
- Price
- Fixed quote, typically within a working day
- Hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Updated
- 30 October 2026
What we do, step by step
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. It takes a few hours for a short run, longer for long runs and tall risers, and we clear up before we go. If the van will struggle with a lane or gateway near Childwick Green, let us know and we’ll plan around it.
- We trace the duct and find every way in.
- Grease thickness is measured at set points.
- 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.
Before we arrive
- Move anything stored near the system
- Agree a time when the area can be out of use
- Have your last certificate or report to hand
Getting a quote
To get a fixed quote, ring 0345 646 2711 or email us and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You’ll normally have a quote within one working day.
Advice
Landlords, agents and facilities managers
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.
Multi-site operators often want one contractor and one number. We work across London and the South East, so visits at different addresses can be planned together and kept on a regular cycle.
What ductwork cleaning looks like in Childwick Green
The Food Standards Agency lists about 7 pubs, bars and clubs as registered food businesses within 1.5 miles or so of the middle of Childwick Green. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. It’s St Albans City council that sends environmental health officers to food businesses in Childwick 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. Childwick Green is covered by Hertfordshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk.
For schools such as Townsend Church of England School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed. Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Childwickbury Manor is about 0.4 miles south-west), access may need planning.
Childwick Green is about 2 miles south of Harpenden, in Hertfordshire. If you need ductwork cleaning in Childwick Green, please call us on 0345 646 2711 or drop us a line for a fixed quote. Our area covers London and the South East, Childwick Green included. Childwick Green is one of 381 places in Hertfordshire we cover for commercial clients. London is in our area too, about 22 miles from Childwick Green.
Every address in AL3 is within our area for ductwork cleaning, from the main roads to the quietest streets. You’ll find streets such as Childwick Green and School Lane, all of which we cover for ductwork cleaning. We also cover Ayres End (1 mile north-east), Bernards Heath (2 miles south), Sandridge (2 miles east), Marshalswick (2 miles south-east) and St Albans (2 miles south). Within a short drive, we also cover Watford (9 miles south), Hemel Hempstead (5 miles south-west), Stevenage (11 miles north-east), Welwyn Garden City (7 miles east), Hitchin (12 miles north) and Hoddesdon (14 miles east).
Around Childwick Green
Around Childwick Green, our work takes us to kitchens and buildings near Three Horseshoes Public House and Margaret Wix Primary School. Childwick Green’s nearest station is Harpenden station, about 2.1 miles north. A little further out are Harpenden Museum (2 miles north) and Village Arcade St Albans (2.3 miles south). Green spaces nearby include Verulamium Lake and Grebe House Wildlife Garden.
Nearby places to Childwick Green
What else we do in Childwick Green
FAQs for Childwick Green
Do you cover smaller places like Childwick Green?
Yes. Childwick Green 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.
Do you do school kitchen extract cleaning in Childwick Green in the summer holidays?
Yes. Half-terms and the summer break are the natural time for school work. Food Standards Agency records list about 4 schools, colleges and universities with registered kitchens within about a mile and a half of Childwick Green. Just call us on 0345 646 2711 or drop us a line with your term dates and we will plan around them.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Do you work with multi-site operators?
Yes. One number covers all your sites in our area, and visits can be set on a regular cycle.
How do you know if the ductwork needs cleaning?
Signs include grease dripping from joints, smells and a fan working harder, but measuring is the reliable way to know. Grease thickness testing shows exactly where the duct stands.
What happens if you can’t reach some of it?
They’re marked on the report. In ductwork, new access panels are often the answer, and we can fit those.
How long does ductwork cleaning take?
A short duct can be cleaned in a few hours, while long ducts and tall risers can need more than one visit. Visits are planned out of hours.
Will the duct clean disrupt the kitchen?
We plan the clean when you are not cooking. Overnight and weekend work is common, so no service is lost.
Keeping the system healthy
After the visit, a few habits help the work last:
- Keep access panels clear of stored items
- Flag drips from the duct right away
- Never cook with a filter missing
- Don’t switch the extract off early
Grease readings are taken again at the same set points, giving you before and after readings. Photos of each section go alongside them.
Extra access panels mean more of the duct gets cleaned each time. It does not stop grease forming, but it stops it building unseen.
Why deal with it now?
BESA guidance says grease shouldn’t exceed a mean of 200 microns between cleans. A reading of 500 microns or more at any point means a spot clean straight away. Putting off the clean only pushes readings higher. Systems in rural buildings are often out of sight and out of mind.
The price reflects the work, not guesswork. That is why every job is surveyed first, and the price is agreed before work begins.
Why Childwick Green businesses choose us
- Every visit written up, with pictures
- Ventilation hygiene specialists since 2009
- Full insurance on every job
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
When it’s something else
Ductwork cleaning can’t fix everything, and we’ll tell you before any work starts. It does not solve:
- Faulty fire dampers
- Undersized or badly laid-out ducts
- Sections that cannot be reached safely without new access (those are recorded, and panels can be fitted)
If you are not sure, just ring 0345 646 2711 or email us and we will give you a straight answer before booking.
What the work covers
- Multi-storey ducts
- Attenuators
- Bends and junctions
- Vertical risers
- Horizontal duct runs
- Access panels
Staff cleaning versus specialist work
A few tasks are always specialist work: 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.
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.