Hampshire · Ductwork cleaning
Ductwork Cleaning in Knapp
Ductwork cleaning for businesses, landlords and public buildings in Knapp. CHAS, SafeContractor and ISO 9001, and fully insured.
- An insurer asking for TR19 evidence
- Duct runs with no cleaning record
- Thick deposits at the bottom of a vertical duct
Ductwork cleaning in Knapp
We have been trading since 2009, working across London and the South East. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and our certificates are issued through the BESCA Vent Hygiene Elite portal. If you’re dealing with a duct nobody has opened in years and gaps where access panels were never fitted, we can put it right, from multi-storey ducts, access panels and horizontal duct runs onwards.
In a village or hamlet like Knapp, the kitchens that need extract cleaning are usually a pub, a school, a care home or a hall kitchen, wherever there is one. Each still has a canopy and duct that collect grease, whatever the size of the place.
Insurers, fire officers and environmental health officers all look at records. That’s why every job is written up in a report with photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- Knapp (SO51)
- Wider area
- Hampshire
- Reporting
- Certificate plus before-and-after pictures
- Price
- A fixed quote up front
- When we work
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
When something else is needed
To be straight with you, some problems need a different fix:
- A duct that is too small or badly routed for the kitchen (a design issue)
- Fire dampers that do not close (they need testing and remedials)
- A worn-out fan that needs replacing
If in doubt, call us on 0345 646 2711 or email us and we will say what we think before you book.
What we work on in Knapp
- Access panels
- Attenuators
- Horizontal duct runs
- Multi-storey ducts
- Bends and junctions
- Vertical risers
Nearby places to Knapp
Other services in Knapp
Keeping the system healthy
Good habits slow the build-up between visits. Our tips:
- Don’t block access panels with shelving or stock
- Tell us if grease leaks from the ductwork
- Book the next clean before the recommended date
- Don’t switch the extract off early
Access panels are closed and sealed back up after cleaning, and the surrounding area is left clean. Waste grease and water are taken away.
Keep to the cleaning interval on the report. 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
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Afterwards, the area is left tidy and the written report follows. The timing of a visit to Knapp is set by you, and the travel is our side of the planning.
- We map the duct route and check where the access panels are.
- 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 photos are repeated and any section we couldn’t reach is recorded.
Preparing for the visit
- Tell us about site rules, permits or sign-in
- Tell us where we can park and unload
- Dig out any earlier paperwork for the system
Getting a quote
Some systems can be priced from pictures; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before we start.
Read more
Different parts, different methods
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.
Vertical risers
Cleaning a riser needs access along its height. Any part that cannot be safely reached is recorded.
Questions from Knapp
Who inspects food businesses in Knapp?
In Knapp, it’s Test Valley council that carries out food hygiene inspections. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Can school kitchens in Knapp be cleaned in the holidays?
Yes, out-of-term visits are normal for schools. The FSA’s register shows about 2 schools and colleges with food registrations within roughly a mile and a half of Knapp. Just call 0345 646 2711 or use the quote form with your term dates and we’ll plan around them.
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.
How often should kitchen ducts be cleaned?
The duct is cleaned as part of the whole system, at intervals set by BESA guidance, ranging from 3-monthly to 12-monthly. Readings tell you if it needs to be more often.
Can you quote from photos?
Often, yes. With good photos, the site type and your last report, we can price many jobs. Where we cannot see enough, we arrange a survey.
How do you know if the ductwork needs cleaning?
We measure it. 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.
How do you clean inside the ductwork?
We get into the duct through its access panels. Thick deposits are removed by hand before degreasing, such as degreasers, hot water or steam.
Do you offer maintenance contracts?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. The report from each visit recommends the next date.
Signs you need ductwork cleaning in Knapp
Grease in a duct running from a kitchen in Knapp is as much a fire risk as in any building. Once it lights, fire can spread along the duct and into other areas, which is why the responsible person needs it under control.
Keep an eye out for any of the following:
- Sections of duct with no access panels
- High readings at a recent grease test
- An insurer asking for TR19 evidence
- Grease pooling at the foot of the riser
Healthcare kitchens, like those at hospitals such as Romsey Community Hospital (about 2.9 miles south-west), often cook for long hours, which puts them in BESA’s heavier-use bands.
Questions to ask before you book
- Whether VAT is included
- Whether inaccessible sections are listed on the report
- When they can work, and whether that is outside your opening hours
- Whether the price is fixed
Multi-site and managed buildings
Whether it’s one building or many, the standard is the same: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept on a regular cycle.
What ductwork cleaning looks like in Knapp
The FSA’s food hygiene register includes about 5 pubs, bars and clubs within about 1.5 miles of central Knapp. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. Kitchens in Knapp get their food hygiene inspections from Test Valley council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Before-and-after photos from each clean are a simple way to show the extract is in hand. Knapp is covered by Hampshire and Isle of Wight Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
Where a hall near Church of St Mark, or anywhere in Knapp, hosts lunch clubs or events, its extract gathers grease just as a café’s does. Bursars and site managers at schools such as Ampfield Church of England Primary School tend to book extract cleaning for when the kitchen is empty.
Knapp is about 2 miles north-west of Chandler's Ford, in Hampshire. Anywhere in SO51, we can take on ductwork cleaning. Across Hampshire, we cover 683 places, and Knapp is one of them. Our Southampton page covers sites nearby (7 miles or so).
Our technicians cover all of SO51 for ductwork cleaning and the streets around it. Other places close to Knapp include Ampfield (1 mile south-west), Broadgate (1 mile south-east), Gosport (1 mile south-west), Lower Slackstead (1 mile north-west) and Crampmoor (2 miles south-west). Larger places within reach include Winchester (6 miles north-east), Eastleigh (5 miles south-east), Fareham (15 miles south-east), Andover (14 miles north), Totton (7 miles south-west) and Hedge End (8 miles south-east).
Landmarks near Knapp
Typical jobs here are in premises near White Horse Public House, among other places. The nearest railway station is Chandlers Ford station, roughly 2.5 miles south-east of the centre. Nearby you will also find Romsey Community Hospital (2.9 miles south-west) and King Johns House (3.7 miles south-west). The countryside around Knapp includes Emer Bog and Baddesley Common.
What staff can safely do
Your own staff can handle the daily basics: 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, and that is where we come in.
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.