Hertfordshire · Ventilation duct cleaning
Lemsford ventilation duct cleaning
Ventilation duct cleaning for Lemsford, from a team that has been trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Toilet and washroom extracts full of fluff
- Construction dust left in ducts after a refit
- Supply ducts with years of dust inside
Ventilation duct cleaning in Lemsford
TR19® Air is the part of BESA’s TR19® that deals with general supply and extract ventilation. It works by inspecting first and cleaning where the risk calls for it, so we look before we clean. If you have ductwork that hasn’t been inspected and ductwork with too few access panels to clean, we can help, from general extract ductwork, toilet extract systems and offices and schools onwards.
In a village or hamlet like Lemsford, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
Nothing is signed off by word of mouth: a written report, dated and illustrated with pictures, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Where
- Lemsford (AL8)
- Wider area
- Hertfordshire
- Paperwork
- Photo report after each visit
- Quote
- A fixed price before we start
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Checked
- 30 October 2026
What affects the cost of ventilation duct cleaning
A fixed price needs a few facts first. We check:
- The number of sites or systems
- The times the site is available
- One-off work versus a regular cycle
- Any permits to work or inductions
No two sites are the same, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
What we need to know
There’s no need for technical detail. It helps if you can send:
- Detail shots of panels, filters and grilles
- The postcode and the type of business
- How we’d reach plant on a roof or in a plant room
- Your opening hours and when the area is out of use
We do not publish a price list, because no two systems are the same. Instead, we look at your site first, from pictures or a survey, and then give you a fixed quote. To start, phone us on 0345 646 2711 or use the quote form.
Lemsford questions
Do you do school ventilation cleaning in Lemsford in the summer holidays?
Yes. Half-terms and the summer break are the natural time for school work. Around Lemsford, the Food Standards Agency lists about 12 schools and colleges with registered kitchens within a mile and a half or so. Booking early in the term gives the best choice of holiday dates.
Do you work overnight in Lemsford?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Let us know the hours you’re closed and we’ll book within them.
Is there a survey before the work?
Yes. For many sites, pictures and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
Will you look at the ducts before quoting?
Yes, on every job. The survey shows the layout, the access and the condition, so the quote is fixed before any work starts.
Can you look after several sites?
Yes. Send the list of sites and the work at each and you will get one fixed quote.
What if there are not enough access panels?
Accessible sections are cleaned and the others recorded. Fitting access panels tends to be the answer, and we can quote for them.
Which sectors do you work in?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.
Are you insured?
Yes. We’re fully insured, and the details are available on request.
How the job changes from site to site
Hospitals and care homes
Dust control matters during work in occupied care settings. We protect the work area and take everything away.
Grilles and diffusers
Grilles and diffusers are where the ducts meet the room. We clean them as part of the job, so dust on them isn’t blown back in.
When something else is needed
Before you book, it helps to know what’s not included:
- Ducts that are damaged, corroded or leaking and need replacing
- Design problems with the ductwork layout
- Grease in kitchen extract systems, cleaned to TR19® Grease instead
Not sure which it is? You can call 0345 646 2711, or email photos and we will tell you honestly.
Parts of the system we cover
- Supply ductwork
- General extract ductwork
- Hospitals and care homes
- Toilet extract systems
- Grilles and diffusers
- Offices and schools
How it works
There’s very little for your team to do on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. Somewhere as small as Lemsford, the date and timings are agreed with you well before the day.
- First we check the layout and any past paperwork.
- We inspect the ducts at chosen points to see where cleaning is needed.
- We cover the area below and turn off the system.
- We clean the system and remove the debris from site.
- We report on the work, listing any inaccessible sections and the next inspection date.
Getting ready for the visit
- Have your last certificate or report to hand
- Tell us where we can park and unload
- Make sure someone can let us in and lock up afterwards
Ask for a quote
To get a fixed quote, call us on 0345 646 2711 or drop us a line with the site type, your trading hours and a short description of the system. A few photos and your last certificate or report help a lot. You will typically have a quote within one working day.
Read more
Landlords, agents and facilities managers
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.
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.
Signs you need ventilation duct cleaning in Lemsford
Building work is one of the biggest sources of debris in ducts, particularly if it’s left running while work goes on. Plaster, wood and masonry dust can sit in the ducts for years.
Clients normally contact us when they notice something like this:
- Dirty diffusers dropping dust into rooms
- Construction dust left in ducts after a refit
- Systems with no record of inspection or cleaning
- Rooms that feel airless when the system runs
If you manage a school such as Applecroft School, ventilation cleaning is best booked for the holidays.
Before booking anyone
- How areas they can’t reach will be recorded
- Proof of accreditation you can verify
- Whether a survey comes first
- What hours they’ll be on site
Also near Lemsford
Other services in Lemsford
Lemsford buildings and their air
There are about 12 schools, colleges and universities and about 3 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register in Lemsford and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. About 21 miles out from central London, Lemsford is part of the South East area we work across. Evening, overnight and weekend visits are all possible. For Lemsford, the closest hospital is Queen Elizabeth II Hospital, roughly 2.1 miles south-east. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
Healthcare buildings such as Queen Elizabeth II Hospital, about 2.1 miles south-east, depend on their ventilation; if you manage a surgery, clinic or care home near Lemsford, yours matters too.
Lemsford is about 2 miles west of Welwyn Garden City, in Hertfordshire. We provide ventilation duct cleaning for businesses, landlords and public buildings in Lemsford and the rest of Hertfordshire. 381 places in Hertfordshire are on our list, from busy centres to quieter spots. We also work in London, around 21 miles away.
Postcode districts we cover here for ventilation duct cleaning: AL8. Whether your site is on Mill Close, Lemsford Village and Great North Road or anywhere close by, our technicians can take on the work. Neighbouring places we cover for ventilation duct cleaning include Stanborough (1 mile south), Coleman Green (2 miles west), Cooper's Green (2 miles south-west), Hatfield (2 miles south) and Smallford (3 miles south-west). Within a short drive, we also cover Watford (12 miles south-west), Hemel Hempstead (10 miles west), Stevenage (8 miles north), St Albans (5 miles south-west), Harpenden (5 miles west) and Hitchin (11 miles north).
Landmarks near Lemsford
Typical jobs here are in premises near Stanborough Park, Stanborough School and The Sun Inn, among other places. Lemsford’s nearest station is Welwyn Garden City station, about 1.2 miles east of the centre. Other landmarks nearby include Queen Elizabeth II Hospital (2.1 miles south-east) and The Bunker at Hatfield Police Station (2.1 miles south). Open spaces near Lemsford include Lemsford Springs.
Leave it or put it right?
If a building in Lemsford has just been refitted, now is the time to clean the ductwork. Otherwise construction dust left in the ducts is blown out once the system runs. Equipment tucked in a roof space or outbuilding near Lemsford rarely gets looked at unless someone books it.
What you pay depends on how big the system is, what state it’s in and how easy it is to reach. We give you a fixed price before we start, so there are no surprises.
Why us?
- Every visit written up, with photos
- Fixed quotes, typically within one working day
- CHAS, SafeContractor and ISO 9001
- Out-of-hours work and a 24/7 emergency line
Read how cleaning jobs are priced and our accreditations and certificates.