Hertfordshire · Air handling unit cleaning
Ley Green AHU cleaning
Looking for AHU cleaning in Ley Green? We survey first, send you a fixed quote and work around your opening hours, then sign off with a report and photos.
- Stale or musty smells from the ventilation
- Air handling units due a clean after building work
- Dirty filters cutting the airflow
Managing agents and facilities teams in Ley Green
Multi-site operators often want one contractor and one number. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
AHU cleaning in Ley Green, done properly
We clean the parts of the unit where dirt and moisture gather: the filter section, heating and cooling coils, drain trays, fan and casing. Every clean comes with a TR19® certificate and before and after pictures in a report. If you have units that have only ever had filter changes and filters that are clogged or overdue, we can put it right.
Somewhere as small as Ley Green, ducted ventilation is normally limited to a school, a care home, a surgery or a converted business building, wherever there is one, but those that do need it inspected and cleaned like any other.
For insurers and inspectors, the record counts. So every job comes with a written report and pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Place
- Ley Green (SG4)
- Wider area
- Hertfordshire
- Paperwork
- Photo report after every visit
- Quote
- Fixed quote, typically within a working day
- Working hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Ventilation in Ley Green buildings
There are about 3 schools, colleges and universities on the FSA’s food hygiene register in and around Ley Green, up to about a mile and a half out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Ley Green’s nearest hospital, Lister Hospital, is about 4.5 miles east. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. Ley Green, about 30 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site.
School buildings such as Preston Primary School are usually done in the holidays, so classrooms aren’t disturbed.
Ley Green is about 4 miles south-west of Hitchin, in Hertfordshire. We provide AHU cleaning for commercial premises of every kind in Ley Green and the rest of Hertfordshire. Our area takes in 381 places across Hertfordshire, from busy centres to quieter spots. Our Milton Keynes page covers sites nearby (21 miles or so).
Here we cover the SG4 postcode area for AHU cleaning. You will find streets such as Plough Lane, Whitehall Road and School Lane, and we cover them all for AHU cleaning. Other places close to Ley Green include Great Offley (2 miles north-west), Temple End (2 miles north) and The Flints (2 miles north-west). Larger places within reach include Hemel Hempstead (12 miles south-west), Stevenage (6 miles east), St Albans (11 miles south), Welwyn Garden City (9 miles south-east), Harpenden (6 miles south) and Hitchin (4 miles north-east).
Near you in Ley Green
The nearest railway station is Hitchin station, roughly 4 miles north-east of the centre. Well-known places in the area include Wymondley Castle (4.3 miles north-east) and Lister Hospital (4.5 miles east). The countryside around Ley Green includes Markham's Hill and Oughtonhead Nature Reserve.
What affects the cost of AHU cleaning
We quote each job individually. These are the things that affect it:
- The condition we find in the survey
- When the work can happen, such as evenings, overnight or weekends
- A single visit or a regular plan
- How many systems or sites are involved
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.
Helping us quote
A few details help us quote accurately. With your enquiry, please include:
- Your opening hours and when the area is out of use
- How we’d reach plant on a roof or in a plant room
- Your last certificate, test record or report
- Wide pictures of the system and the area around it
We do not 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 start, give us a ring on 0345 646 2711 or send us an email.
Signs you need AHU cleaning in Ley Green
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. Most of it lands at the intake and the first stage of filters, and the finer material travels on.
Clients usually contact us after spotting one of these:
- Odours coming through the supply air
- Debris and leaves in the fresh air intake
- Dust-coated heating and cooling coils
- Blocked condensate drains and slimy trays
Healthcare buildings such as Lister Hospital, about 4.5 miles east, depend on their ventilation; if you manage a surgery, clinic or care home near Ley Green, yours matters too.
Before booking anyone
- Whether a written report and pictures are included
- Whether they recommend a next date
- Whether the work can be done while the site is closed
- Which accreditations they hold, and whether you can check them
Part by part
Filters
Filters are the first line of defence in the unit. We check them, and clean or change them as agreed in the quote, and clean the filter housing.
Internal casing and panels
Damaged internal linings or loose panels can shed material into the air. We note any we find in the report.
What a clean will not put right
We won’t sell you work that doesn’t address the problem, so here are the limits:
- Airflow problems caused by the system’s design
- Breakdowns that need a mechanical engineer
- Damaged coils beyond cleaning
If in doubt, call us on 0345 646 2711, or send details by email and we’ll say what we think.
Where we work
- Filter sections
- Supply and extract fans
- Heating and cooling coils
- Internal panels
- Dampers and louvres
- Drain trays
Keeping the system healthy
So the system stays in good health:
- Keep filter changes on time and recorded
- Keep the certificate and photo report with the plant records
- Watch for drips or damp patches near the plant
- Clear leaves and litter away from the intake
We recommend when the unit should next be inspected or cleaned, based on what we found. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Change or clean filters on time. Once filters clog, dirt starts getting past them.
Nearby places to Ley Green
Also in Ley Green
How it works
Protection comes first: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. It takes anything from half a day for one small unit to several shifts for a plant room full of them, and we clear up before we go. A quick note on how to find the site and where to park makes a visit to Ley Green run smoothly.
- We survey the unit from pictures or on site and agree what’s included.
- The unit is shut down with your site team and the area protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after photos.
Before we arrive
- Name a contact who can let us in at the agreed time
- Find the previous report, if there is one
- Agree a time when the area can be out of use
Get a fixed quote
Need a price for AHU cleaning? Please ring 0345 646 2711 or email us with a few details about the site. We will talk you through the work and send you a fixed quote before anything is booked.
Advice
Ley Green: your questions answered
Do you clean school ventilation in Ley Green in the holidays?
Yes. Half-terms and the summer break are the natural time for school work. With about 3 schools and colleges on the FSA’s register within roughly a mile and a half of Ley Green, it pays to plan holiday dates ahead. Booking early in the term gives the best choice of holiday dates.
Do you work overnight in Ley Green?
Yes. We work evenings, overnight and at weekends. The work in Ley Green can fit around your hours. Your opening times are the first thing we ask for.
Can you look after several sites?
Yes. Our area covers London and the South East, so we can schedule a run of sites as one programme. Each site gets its own report and pictures.
Can we book visits on a schedule?
Yes. Scheduled maintenance plans are part of what we do, with visits at the interval your system needs. The report from each visit recommends the next date.
Do you offer emergency callouts?
Yes. Our emergency line runs 24/7, for problems that cannot wait. Call us any time and explain what’s happened.
What if parts of the system can’t be reached?
Anything we can’t reach goes on the report, with photos where possible, and we explain what access is needed, for example new access panels.
Do you survey before quoting?
Yes. For many sites, pictures and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
Can you clean the ducts connected to the AHU?
Yes. We clean supply and extract ductwork to TR19® Air as well. Cleaning the unit and ducts together often makes sense, and we can quote for both.