Surrey · Ductwork cleaning
Ductwork Cleaning in St John's
Ductwork cleaning across St John's and nearby, booked around your opening hours and signed off in writing with pictures.
- Thick crusts of old grease along the duct
- An insurer asking for TR19 evidence
- A duct nobody has opened in years
Common problems we fix in St John's
Risers carry the extract up through the building. 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.
Any of these means the system needs a check-up:
- Grease seeping out of the duct seams
- A rancid smell from the extract duct
- Readings above 200 microns from a grease thickness test
- Years of grease along the duct floor
Volunteers running a hall kitchen near St John's Church, or anywhere in St John's, may not know when the extract was last cleaned, and a grease test settles it.
What to look for in a quote
- Whether a survey comes first
- Exactly which parts of the system are covered
- Whether VAT is included
- When they can work, and whether that is outside your opening hours
How we handle ductwork cleaning in St John's
Nobody sees duct grease building, so nobody notices it until something goes wrong. A flare-up drawn up from the range can light it, carrying a fire along the duct and into rooms far from the kitchen. Removing it is the whole point. The work covers attenuators, multi-storey ducts and access panels, and common reasons people get in touch are duct runs with no cleaning record and fat dripping from the ductwork.
In a smaller place like St John's, the kitchens with extract systems are more likely to be a pub, a café, a takeaway or a school or care home kitchen than a big restaurant. A kitchen that cooks fewer hours still builds up grease, so cleaning is planned around how much it cooks and what the readings show.
Good records are part of the job. You get a written report with pictures after each visit, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s to hand when an insurer or inspector asks.
- Location
- St John's (GU21, GU22)
- Region
- Surrey
- Records
- TR19® certificate and photo report
- Quotes
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Aftercare tips
Aftercare is simple, and it helps at the next visit:
- Ask us about extra access panels where sections can’t be reached
- Keep grease filters clean and fitted whenever you cook
- Book the next clean before the recommended date
- Flag drips from the duct straight away
After the clean, the same points are tested again, giving you before and after readings. Before and after pictures sit next to the numbers.
Extra access panels mean more of the duct gets cleaned each time. It doesn’t stop grease forming, but it stops it building unseen.
Common questions in St John's
Can you clean school kitchen extracts in St John's during the holidays?
Yes. Half-terms and the summer break are the natural time for school work. Around St John's, the Food Standards Agency lists about 11 schools and colleges with registered kitchens within a mile and a half or so. Send us your term dates when you ring 0345 646 2711, or send details by email, and we’ll fit the work in.
Do you cover smaller places like St John's?
Yes, we work in villages as well as towns, and St John's is covered. Photos of the system and directions to the site help us plan the visit.
How much 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. You get a fixed price before work begins.
Can one contract cover all our sites?
Yes. One number covers all your sites in our area, and visits can be set on a regular cycle.
What accreditations do you have?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
What’s the cleaning interval for extract ductwork?
It follows the same interval as the whole extract, ranging from 3-monthly to 12-monthly. Readings tell you if it needs to be more often.
What should I send you?
Some pictures and a quick description of the system, with the address and opening hours. We’ll ask for anything else we need.
How can I tell if my extract ducts are dirty?
A grease thickness test gives the answer. Using a Wet Film Thickness Test or Deposit Thickness Test, we check the grease at set points. BESA guidance says the mean shouldn’t exceed 200 microns, and 500 or more anywhere needs immediate spot cleaning.
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. When a site near St John's shuts unexpectedly, the people who rely on it notice at once.
Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we’ll explain each part.
Why us?
- Evenings, overnight and weekends, plus 24/7 emergency callout
- A written report with pictures after each visit
- One contact for all your sites in London and the South East
- We diagnose before we treat
Read what affects the cost or our accreditations.
What affects the quote in St John's
Before we fix a price, we need to know a few things. We look at:
- The size of the system
- When the work can happen, such as evenings, overnight or weekends
- How many systems or sites are involved
- What state the system is in
One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. You will have a fixed price before any work starts.
Asking for a quote
When you call or email, these details help:
- The times we could work without disrupting the site
- The roof, plant room or outside wall the system runs to
- Wide photos of the system and the area around it
- The site address and the type of premises
For ductwork cleaning in St John's, ring 0345 646 2711 or email us. Let us know the site type and the opening hours, plus photos or the previous report if they’re to hand. We typically send a fixed quote within one working day.
When something else is needed
To be straight with you, some problems need a different fix:
- Fire dampers that don’t close (they need testing and remedials)
- Duct sections that need replacing
- Undersized or badly laid-out ducts
Not sure which it is? You can phone us on 0345 646 2711 or drop us a line and we’ll tell you honestly before booking.
Where we work
- Access panels
- Vertical risers
- Bends and junctions
- Multi-storey ducts
- Attenuators
- Horizontal duct runs
Also near St John's
More services for St John's
Multi-site and managed buildings
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we’re happy to quote for all of it.
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.
St John's kitchens: local notes
There are about 34 restaurants, cafés and works canteens and about 19 takeaways and sandwich shops across St John's and its immediate surroundings (about a mile and a half), according to the Food Standards Agency’s register. Each kitchen that cooks under a canopy sends grease-laden air into a duct, where it cools and settles. It’s Woking council that sends environmental health officers to food businesses in St John's. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Keeping each certificate and photo report on file helps show the extract is looked after. The fire and rescue service for St John's is Surrey 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 you run catering at a healthcare site, such as a hospital like Brookwood Hospital about 1 mile west, the extract may need cleaning more often than a part-time kitchen. If you look after a school kitchen, at a school such as The Winston Churchill School A Specialist Sports College or anywhere near St John's, the holidays are the usual time for a TR19® clean.
St John's is about 1 mile west of Woking, in Surrey. Every kind of commercial site in St John's, we can take on ductwork cleaning. We can work out of hours so the site keeps running. Our area takes in 395 places across Surrey, from busy centres to quieter spots.
Our technicians cover all of the GU21 and GU22 postcode area for ductwork cleaning and the roads nearby. We cover sites on Pond Road, Copse Road and Raglan Road and the roads around them. St John's is on the A324, which makes it straightforward for our technicians to reach for ductwork cleaning. Other places close to St John's include Goldsworth Park (1 mile north-east), Woking (1 mile east), Westfield (2 miles south-east), Horsell (2 miles north-east) and Mimbridge (2 miles north). Further out, we also cover Guildford (5 miles south), Camberley (6 miles west), Epsom (14 miles east), Farnham (11 miles south-west), Ewell (15 miles east) and Egham (8 miles north).
Landmarks near St John's
Around St John's, our work takes us to kitchens and buildings near Hoe Valley School, The Oaktree School and Royal Oak pub and the streets around them. For rail, the closest station is Woking station, roughly 1.6 miles east of the centre. Nearby you’ll also find Brookwood Hospital (1 mile west) and The Peacocks (1.6 miles east). Not far away are Brookwood Lye.
The process
At the end of the visit, someone from your team can look over the work with us. Anything we couldn’t reach or that needs attention is pointed out there and then, and it goes on the report too. All told, the work takes a few hours for a short run, longer for long runs and tall risers. Getting to the system matters more than parking in a place like St John's, so let us know how to reach it.
- First the duct route is traced and every access point noted.
- We measure grease thickness at set points before cleaning.
- Through the access panels, thick grease is removed by hand first.
- Horizontal runs and risers are then degreased by the method that suits the deposit.
- Readings and pictures are repeated and any section we couldn’t reach is recorded.
How to prepare
- Have your last certificate or report to hand
- Allow time for equipment near the work to be turned off and cool down
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
How to get a quote
We don’t publish a price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, give us a ring on 0345 646 2711 or send us an email.