Hertfordshire · Ductwork cleaning
Ductwork Cleaning in Croxley Green
One call covers ductwork cleaning in Croxley Green: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Smells of old cooking grease from the ductwork
- Thick deposits at the bottom of a vertical duct
- Duct runs that can’t be reached
What happens on the day
When we arrive, we check the system against the survey or the pictures you sent. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes a few hours for a short run, longer for long runs and tall risers. In a small place like Croxley Green, the journey is planned ahead and the visit arranged around the site’s hours.
- We start by working out how the duct runs and where it can be opened.
- Grease readings are taken at set points along the duct.
- We open the panels and scrape out the heaviest grease.
- The duct is degreased with the method that suits the grease, from degreasers to hot water or steam.
- Readings and pictures are repeated and any section we couldn’t reach is recorded.
Preparing for the visit
- Clear the space around the work
- Have your last certificate or report to hand
- Make sure someone can let us in and lock up afterwards
Get a fixed quote
Need a price for ductwork cleaning? Please ring 0345 646 2711 or drop us a line and tell us about the site. We will explain what we’d do and send a fixed quote before anything is booked.
Advice
Ductwork cleaning in Croxley 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. The survey traces the route, so we know where to get in and how long it will take. Typical jobs include stale grease odours from the duct and an insurer asking for TR19 evidence, on multi-storey ducts, attenuators and vertical risers.
Rural kitchens often have long, low duct runs through a roof space or along an outside wall, where grease settles in the flat sections. We agree access and timings in advance.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we are fully insured. On top of that, we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Where
- Croxley Green (WD3, WD18)
- Wider area
- Hertfordshire
- Paperwork
- TR19® certificate and photo report
- Quotes
- A fixed quote up front
- Hours
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026

Multi-site and managed buildings
When the building owner and the occupier are different, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
How we price ductwork cleaning
Sites vary more than people expect. What affects the quote:
- The size of the system
- One-off work versus a regular cycle
- The condition we find in the survey
- How easy every part is to reach
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, and a neglected system can mean more work. If you are unsure, phone us on 0345 646 2711 or email us for straight advice and a fixed quote.
What to send for a quote
To help us quote quickly, please include:
- The roof, plant room or outside wall the system runs to
- Your opening hours and when the area is out of use
- Any previous report or certificate
- Photos showing the whole system and its surroundings
Every quote begins with a look at the system, either from pictures and details you send or from a site visit. Then we send a fixed price so you know the cost before we start.
Places near Croxley Green
More services for Croxley Green
Staff cleaning versus specialist work
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, which is where we come in.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.
What happens if it’s left?
A fire in a greasy duct is hard to reach and hard to stop. It can travel through the ductwork to other parts of the building, which is why the duct matters as much as the canopy. In a place like Croxley Green, ductwork and fans are easy to forget until something goes wrong.
Several systems or sites on one quote can make for a more efficient booking. Tell us about everything you’d like looked at, and you’ll get one fixed quote.
Why choose Duct Doctor in Croxley Green
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- CHAS, SafeContractor and ISO 9001
- Full insurance on every job
- Evenings, overnight and weekends, plus 24/7 emergency callout
Read how cleaning jobs are priced and our accreditations and certificates.
Questions from Croxley Green
Do you work at weekends in Croxley Green?
Yes, we can come after you close and finish before you open. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
Can school kitchens in Croxley Green be cleaned in the holidays?
Yes. The holidays are the usual time for school work. There are about 17 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Croxley Green. Booking early in the term gives the best choice of holiday dates.
How do you protect the area?
With sheeting and covers, before anything else happens. We keep the work contained and clean down when we finish.
Do you offer emergency callouts?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, with the emergency line covering every other hour.
How much notice do you need?
Earlier is better, particularly for night and weekend visits. Quotes normally come back within one working day, and emergencies are covered by our 24/7 line.
What’s 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, while TR19® Air covers other supply and extract ductwork.
How is kitchen extract ductwork cleaned?
We survey the route, test the grease, then open the access panels. We clean the runs and risers section by section, and test again when we’re done.
Can you price the work without visiting?
Usually, yes. Send wide shots, close-ups of any access panels and anything that worries you, and a fixed quote usually follows within one working day. Some sites still need a visit, and we’ll say so.
Kitchen extracts in Croxley Green
Food Standards Agency data counts about 48 restaurants, cafés and canteens and about 15 takeaways and sandwich shops in and around Croxley Green, up to about a mile and a half out. Wherever those kitchens cook under a canopy, the horizontal runs and risers need cleaning as well as the hood. Fire safety in Croxley Green 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. In Croxley Green, food businesses are inspected by environmental health officers from Three Rivers council. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Our report lists what was cleaned and when, which is useful to have ready.
If you run catering at a historic house or estate in the area (Chenies Manor House is about 4.2 miles north-west), event kitchens in older buildings often have awkward duct runs that need planning. Term dates shape school work: for a school like Harvey Road Primary School, an extract clean fits neatly into a half-term or summer break.
Croxley Green is about 1 mile north-east of Rickmansworth, in Hertfordshire. If you need ductwork cleaning in Croxley Green, please ring 0345 646 2711 or send us an email for a fixed quote. We work across South East England and London, including Croxley Green. Our area takes in 381 places across Hertfordshire, from busy centres to quieter spots. We also work in London, about 18 miles from Croxley Green.
Our technicians cover all of the WD3 and WD18 postcode area for ductwork cleaning and the streets around it. Whether your site is on New Road, Harvey Road and Bateman Road or a nearby road, we can help. Nearby, we also carry out ductwork cleaning in Holywell (1 mile east), Rickmansworth (1 mile south-west), Batchworth (1 mile south-west), Chorleywood West (2 miles west) and Moor Park (2 miles south). Within a short drive, we also cover Hemel Hempstead (7 miles north), St Albans (9 miles north-east), Welwyn Garden City (15 miles north-east), Harpenden (12 miles north), Hatfield (12 miles north-east) and Borehamwood (7 miles east).
Landmarks near Croxley Green
In Croxley Green, that means kitchens and buildings near Croxley Danes School, Rickmansworth School and The Red House and the streets around them. The closest station to Croxley Green is Rickmansworth station, roughly 1.3 miles west of the centre. Well-known places in the area include Hertfordshire Fire Brigade Museum (2.4 miles east) and Hilfield Castle (4.7 miles east). Not far away are Chorleywood Common and Tumbling Bay.
Looking after it afterwards
A little care between visits keeps the system in better shape. Our advice:
- Ask for a grease thickness test if the kitchen gets busier
- Book the next clean before the recommended date
- Leave a way through to the access panels
- Keep the fan on while anything is cooking
When the duct is cleaned as part of a full TR19® Grease clean, a TR19 certificate is issued through the BESCA Vent Hygiene Elite portal. It records the date, the location and the technician.
The less grease gets past the canopy, the cleaner the duct stays. Keep the filters clean, well fitted and in place whenever you cook.
Do you need ductwork cleaning in Croxley Green?
Grease settles fastest where the air slows down. Long horizontal runs, bends, changes in size and the foot of a riser all collect more, and those are the points we pay most attention to.
Keep an eye out for these warning signs:
- Duct runs that cannot be reached
- A grease test showing the duct is overdue
- Smells of old cooking grease from the ductwork
- Proof of duct cleaning for the insurer
Healthcare kitchens, like those at hospitals such as Watford General Hospital (about 1.8 miles east), often cook for long hours, which puts them in BESA’s heavier-use bands.
Questions to ask before you book
- Whether the quote is based on a survey or photos
- Proof of accreditation you can verify
- How they set the interval to the next visit
- Whether the price is fixed