Buckinghamshire · Ductwork cleaning
Duct cleaning in New Denham
Our technicians work in New Denham on ductwork cleaning. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- Years of grease along the duct floor
- Duct runs that cannot be reached
- A grease test showing the duct is overdue
Honest limits
In fairness, some problems need a different fix:
- Undersized or badly laid-out ducts
- Faulty fire dampers
- A failed fan motor at the end of the duct (a fan repair job)
If you are not sure, just phone us on 0345 646 2711 or drop us a line and we’ll give you a straight answer before booking.
What the work covers
- Vertical risers
- Access panels
- Multi-storey ducts
- Bends and junctions
- Attenuators
- Horizontal duct runs
Ductwork cleaning for kitchens and businesses in New Denham
We treat ductwork like a doctor treats arteries: find the blockages, clear them, then check the flow is right. Readings taken before and after show the difference, alongside before and after photos. The work covers multi-storey ducts, bends and junctions and attenuators, and the jobs we see most are duct runs with no cleaning record and an insurer asking for TR19 evidence.
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.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Place
- New Denham (UB9)
- Wider area
- Buckinghamshire
- Paperwork
- Certificate and photo report
- Quotes
- A fixed price before work begins
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Common questions in New Denham
Can you get to a site in New Denham?
Yes. Villages and rural sites across the South East are part of our work, New Denham included. A survey first, from photos or a visit, means we arrive with the right kit.
Can school kitchens in New Denham be cleaned in the holidays?
Yes. Half-terms and the summer break are the natural time for school work. Food Standards Agency records list about 10 schools, colleges and universities with registered kitchens within about a mile and a half of New Denham. You can call us on 0345 646 2711 or email us with the dates the site is empty.
Can you fit access panels in our ductwork?
Yes. We will point out where panels are needed, and fitting them means future cleans are more complete.
What’s the cleaning interval for extract ductwork?
The minimum depends on how long the kitchen cooks each day: every 3 months for 12 to 16 hours, 6 months for 6 to 12 hours and 12 months for 2 to 6 hours. Measured grease sets the real interval.
What if part of the duct can’t be reached?
Without a way in, a section can’t be cleaned properly. Those parts are listed, and we can install panels so they’re reached next time.
What shows that the ducts need a clean?
A grease thickness test gives the answer. Using a Wet Film Thickness Test or Deposit Thickness Test, we check the grease at set points. A mean above 200 microns, or 500 microns at any point, means it’s due.
How do you clean inside the ductwork?
We open each access panel and clean the section it reaches. Grease is scraped out first, then degreased, with readings taken before and after.
What accreditations do you have?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’ve been trading since 2009 and we’re fully insured.
What your team can do, and what needs us
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Staff cleaning and specialist work aren’t the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
How the job changes from site to site
Horizontal duct runs
The underside of a horizontal duct collects the most grease. We scrape out the heavy layer first, then the walls and roof are cleaned too.
Bends and transitions
The join where the canopy meets the duct is a common hotspot. We reach it from the plenum side where possible.
What happens if it’s left?
Old grease in a duct for a kitchen in New Denham does not stay soft. Heat and age turn it into a thick, stubborn crust, so the later the clean, the bigger the job. Planning a trip to New Denham ahead is easier for everyone than a rushed one.
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
Why us?
- Survey first, then a fixed quote
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Each visit written up, with pictures
See what affects the cost or our accreditations and certificates.
Fixed quotes for ductwork cleaning in New Denham
Every site gets its own quote. This is what makes a difference:
- Working hours and out-of-hours timing
- Any permits to work or inductions
- Parking and loading at the site
- How easy every part is to reach
We don’t list prices on the website, because the cost depends on the site in front of us. Call for a fixed quote, and we will explain what it covers.
Helping us quote
To help us quote quickly, send us:
- Wide photos of the system and the area around it
- When the site is open and when it’s quiet
- Close-ups of filters, grilles, hatches or access panels
- Your last certificate, test record or report
Getting a quote doesn’t take long. Call or email with a few details and you’ll usually have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
How it works
Everything the job needs comes with us, from protective sheeting to tools and access equipment. You only need to give us clear access and switch off what needs to be off. The visit takes from a few hours to more than one visit, depending on duct length and access. Somewhere like New Denham, lanes, gates and parking are worth mentioning in advance.
- 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.
- 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
- Mention any locked doors, roof access or ceiling voids
- Find the previous report, if there is one
- Tell us about site rules, permits or sign-in
Ask for a quote
There’s no standard 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, ring 0345 646 2711 or drop us a line.
Related advice
Places near New Denham
More services for New Denham
When to call us in New Denham
Grease in a duct running from a kitchen in New Denham 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.
Clients usually contact us after spotting one of these:
- Stale grease odours from the duct
- Duct runs with no cleaning record
- Grease seeping out of the duct seams
- High readings at a recent grease test
A hospital like Hillingdon Hospital, about 2.2 miles south-east, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
Before booking anyone
- Whether the work can be done while the site is closed
- What insurance they carry
- If the quote is a fixed price or an estimate
- Whether a written report and pictures are included
What ductwork cleaning looks like in New Denham
Food Standards Agency data counts about 94 restaurants, cafés and works canteens and about 48 takeaways across New Denham and its immediate surroundings (about a mile and a half). Where they cook under a canopy, grease doesn’t stop at the filters: it settles along the duct and up the riser. It’s Hillingdon council that sends environmental health officers to food businesses in New Denham. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Keeping each certificate and photo report on file helps show the extract is looked after. New Denham sits within the area of Buckinghamshire Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
For schools such as Hermitage Primary School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed. Where a hall near St Francis, or anywhere in New Denham, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
New Denham is about 2 miles north-west of Hillingdon, in Buckinghamshire. Sites in New Denham get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. 263 places in Buckinghamshire are on our list, large and small. For sites nearby, see our London page, about 17 miles away.
Work in UB9 is surveyed, quoted and booked the same way as anywhere else. Streets in the area include Alder Road, Poplar Road and Willow Avenue, and we cover them all for ductwork cleaning. Nearby, we also carry out ductwork cleaning in Uxbridge (1 mile south-east), Denham (1 mile north-west), Ickenham (2 miles east), Cowley (2 miles south) and Hillingdon (2 miles south-east). Further out, we also cover High Wycombe (12 miles north-west), Chesham (12 miles north-west), Marlow (12 miles west), Amersham (10 miles north-west), Beaconsfield (8 miles north-west) and Chalfont St Peter (5 miles north-west).
Landmarks near New Denham
Around New Denham, our work takes us to kitchens and buildings near The Old Mill Club Chris Lee Carriage Company Limited pub, Uxbridge College and Vyners School, among other places. For rail, the closest station is Denham station, about 1.8 miles north of the centre. Other landmarks nearby include The Pavilions (0.6 miles south-east) and Hillingdon Museum and Archives Services (0.7 miles south-east). Not far away are Horse Shoe Bay and Uxbridge Alderglade.