Hertfordshire · Ductwork cleaning
Duct cleaning in St Ippolyts
Ductwork cleaning for St Ippolyts, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Readings above 200 microns from a grease thickness test
- Grease leaking from duct joints
- Grease pooling at the foot of the riser
Aftercare tips
After the visit, a few habits help the work last:
- Tell us if grease leaks from the ductwork
- Run the extract fan throughout service
- Leave a way through to the access panels
- Diarise the next duct clean
Keep the certificate and report with the fire risk assessment. An insurer, fire officer or EHO may ask to see it, and the pictures make the duct’s condition easy to see.
Have access panels fitted where sections cannot be reached. Grease you can reach is grease that gets removed.
Ductwork cleaning for kitchens and businesses in St Ippolyts
Not sure when the ductwork was last cleaned? A few details about the system are a good start when you ring 0345 646 2711 or send us an email, and a fixed price will follow, usually within one working day. If you are dealing with proof of duct cleaning for the insurer and readings above 200 microns from a grease thickness test, we can put it right, from multi-storey ducts, bends and junctions and vertical risers onwards.
In a small place like St Ippolyts, kitchens are often in older or extended buildings, with long single-storey duct runs, where grease settles in the flat sections. We agree access and timings in advance.
Think of the report as the system’s health record: a dated account with pictures of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.
- Where
- St Ippolyts (SG4)
- Wider area
- Hertfordshire
- Records
- Certificate and photo report
- Quotes
- A fixed price before work begins
- Hours
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026

What your team can do, and what needs us
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
If your staff spot something 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.
What happens if it’s left?
Fire inside a duct is out of sight and out of reach. It can travel through the ductwork to other parts of the building, which is why the duct matters as much as the canopy. If the system at a site near St Ippolyts fails, there may be nowhere nearby to move to.
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we’ll go through it with you.
What you get with us
- A single point of contact for sites across the South East and London
- Fully insured
- CHAS and SafeContractor accredited, with ISO 9001
- Trading since 2009
Take a look at what affects the cost or our accreditations and certificates.
Honest limits
Some problems need a different service or another trade:
- Duct sealed behind fixed ceilings or walls
- Duct sections that need replacing
- A duct that’s too small or badly routed for the kitchen (a design issue)
If you’re not sure, just ring 0345 646 2711 or email us and we’ll give you a straight answer before you book.
What the work covers
- Attenuators
- Vertical risers
- Horizontal duct runs
- Bends and junctions
- Access panels
- Multi-storey ducts
How the job changes from site to site
Horizontal duct runs
Long horizontal runs need access panels at regular intervals. Where the gaps between panels are too long, we record what couldn’t be reached and can fit extra panels.
Bends and transitions
A bend can hold far more grease than a straight run of the same length. It’s scraped out and degreased, and readings are taken there before and after.
Ductwork cleaning around St Ippolyts
Food Standards Agency records include about 17 pubs and bars and about 3 hotels, B&Bs and guest houses across St Ippolyts and its immediate surroundings (about a mile and a half). Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Environmental health officers from North Hertfordshire council inspect food businesses in St Ippolyts. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Before-and-after pictures from each clean are a simple way to show the extract is in hand. Fire safety in St Ippolyts falls to Hertfordshire Fire and Rescue Service. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract.
If your kitchen is in a listed or historic building, like the houses around St Ippolyts (Knebworth House is about 4.4 miles south-east), fitting access panels needs care. Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to St Ippolyts is Lister Hospital, about 2 miles east.
St Ippolyts is about 2 miles south of Hitchin, in Hertfordshire. Whether your site is in the middle of St Ippolyts or further out, we cover ductwork cleaning for every kind of premises, from a single unit to a large public building. St Ippolyts is one of 381 places in Hertfordshire we cover for ductwork cleaning. You can also see our page for Milton Keynes, about 23 miles away.
Postcode districts we cover here for ductwork cleaning: SG4. That includes premises on Ashbrook Lane, Brookend Lane and Stevenage Road and the roads around them. We also cover Sperberry Hill (1 mile south), St Ibbs (1 mile south-west), Gosmore (1 mile west), Little Almshoe (1 mile south) and Titmore Green (1 mile east). Within a short drive, we also cover Hemel Hempstead (15 miles south-west), Stevenage (4 miles south-east), St Albans (13 miles south), Welwyn Garden City (9 miles south), Harpenden (9 miles south-west) and Hatfield (12 miles south).
Local landmarks in St Ippolyts
In St Ippolyts, that means kitchens and buildings near Hitchin Girls' School, Butts Close and The Bird in Hand pub and the streets around them. The closest station to St Ippolyts is Hitchin station, roughly 1.6 miles north. Nearby you will also find Wymondley Castle (1.4 miles north-east) and Lister Hospital (2 miles east). For a walk, there’s Markham's Hill and Purwell Ninesprings.
Towns and villages near St Ippolyts
Also in St Ippolyts
Common questions in St Ippolyts
Is St Ippolyts within the area you cover?
Yes. St Ippolyts is within the area we cover across London and the South East. Photos of the system and directions to the site help us plan the visit.
Do you clean school canteen extracts around St Ippolyts out of term?
Yes. The holidays are the usual time for school work. The FSA’s register shows about 10 schools and colleges with food registrations within roughly a mile and a half of St Ippolyts. Send us your term dates when you ring 0345 646 2711 or use the quote form, and we will fit the work in.
What accreditations do you have?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’re fully insured and have been trading since 2009.
How often does extract ductwork need cleaning?
BESA guidance sets minimum intervals by daily cooking hours: 3-monthly for heavy use, 6-monthly for moderate and 12-monthly for light use. Grease readings may show it needs doing sooner.
How much notice do you need?
Book as early as you can for planned work, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
How long does ductwork cleaning take?
Allow a few hours for a short run, longer for long runs and tall risers. The survey tells us how long your duct needs.
What do you do to protect the area?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. The area is left tidy, with our waste taken away.
Can we book visits on a schedule?
Yes, of course. Send details of the systems and how they’re used and we will propose a schedule with a fixed quote.
Common problems we fix in St Ippolyts
Air cools as it moves away from the canopy. Cooling air drops its grease onto the inside of the duct, which is why ducts go on gathering grease well beyond the filters.
It’s time to book a visit if you see:
- Gaps where access panels were never fitted
- Grease seeping out of the duct seams
- A duct clean needed for an insurer
- High readings at a recent grease test
Bursars and site managers at schools such as St Ippolyts Church of England Aided Primary School tend to book extract cleaning for when the kitchen is empty.
What your quote should include
- Proof of accreditation you can verify
- How VAT is shown on the quote
- How areas they cannot reach will be recorded
- If they look at the system before pricing
How it works
Night work is normal for us. A lot of visits happen overnight or at weekends, so a kitchen or building can carry on as usual the next day. On site, the work takes from a few hours to more than one visit, depending on duct length and access. Seeing the system in photos first means the trip to St Ippolyts can be planned properly.
- The duct route is surveyed and every access point found.
- Grease thickness is measured at set points.
- Once the kitchen has closed, we protect the area and open the panels.
- Heavy deposits come out by hand, then each section is degreased.
- We close up, re-test, photograph and record anything out of reach.
Before we arrive
- Find the previous report, if there is one
- Allow time for equipment near the work to be turned off and cool down
- Make sure someone can let us in and lock up afterwards
How to get a quote
Getting a quote doesn’t take long. Send a few details and photos, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.