Hertfordshire · Air handling unit cleaning
Hexton AHU cleaning
AHU cleaning for Hexton, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Coils clogged with dust and debris
- Dust built up on fan impellers
- Units needing a clean before a new tenant or handover
How we handle AHU cleaning in Hexton
Think of an AHU clean as a full check-up for the ventilation. We look inside each section, clean what we find and record it with pictures, so the report shows exactly what was done. Typical jobs include air handling units never cleaned inside and rooms that smell stuffy when the system runs, across dampers and louvres, drain trays and internal panels.
For a building in or near Hexton, access is agreed in advance and the visit is planned around the journey.
Good records are part of the job. Each visit is written up with photos, listing what was done, anything we couldn’t reach and when the next visit is due. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Location
- Hexton (SG5)
- Region
- Hertfordshire
- Reporting
- Photo report after every visit
- Price
- A fixed price before we start
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Questions from Hexton
Is Hexton within the area you cover?
Yes. Hexton is within the area we cover across London and the South East. A survey first, from photos or a visit, means we arrive with the right kit.
Do you work overnight in Hexton?
Yes, out-of-hours work is a big part of what we do. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
How often do AHUs need cleaning?
It depends on the unit, the filters and how the building is used. Inspection tells you when cleaning is needed, and the report recommends a next date.
Do you survey before quoting?
Yes. We always survey first, from your pictures and details, or with a visit where necessary. A fixed quote follows.
What types of premises do you cover?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.
Do you offer maintenance contracts?
Yes. Scheduled maintenance plans are part of what we do, with visits at the interval your system needs. Each report recommends when the next visit should be.
Do you have a 24/7 line?
Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we will advise on what to do next.
How long does it take to clean an air handling unit?
It takes half a day to a full day per unit, with large plant planned over several shifts. Size, layout and how dirty it is decide the rest, and the quote will give you a clear idea.
What a clean won’t put right
Before you book, it helps to know what’s not included:
- Controls and BMS settings that run the unit
- Ventilation that was badly designed in the first place
- Coils that are corroded or leaking and need replacing
If you are not sure, just phone us on 0345 646 2711, or email photos and we’ll give you a straight answer before booking.
Where we work
- Drain trays
- Internal panels
- Supply and extract fans
- Filter sections
- Heating and cooling coils
- Dampers and louvres
Signs you need AHU cleaning in Hexton
It matters for two reasons: the unit supplies the air people breathe, and a dirty unit has to work harder. For the people using the building every day, that is the air they breathe for hours on end.
Common reasons sites call us include:
- Units that have only ever had filter changes
- Dust built up on fan impellers
- Dust-coated heating and cooling coils
- Leaves and litter drawn into the unit
Wherever a school like Hexton Junior Mixed and Infant School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Comparing quotes
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- What’s included in the scope, part by part
- What records you’ll receive afterwards
- How they set the interval to the next visit
Part by part
Rooftop and plant room units
Units on roofs and in plant rooms can be awkward to reach. Access is planned during the survey so the quote reflects it.
Filters
Every AHU relies on its filters to catch dust before it reaches the coils. As part of the clean, filters are checked and cleaned or replaced as agreed, and clean the filter housing.
How it works
Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. The visit takes half a day to a full day per unit, with large plant planned over several shifts. We agree a date with you, plan the drive to Hexton and turn up when the site is quiet.
- We start with a survey of the unit and a fixed quote for the work.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Standing water and slime come out of the tray and the drain is checked.
- We close up the unit and send the certificate and before and after pictures.
Getting ready for the visit
- Have your last certificate or report to hand
- Let us know how we reach the system, including roofs, risers and plant rooms
- Tell us about site rules, permits or sign-in
Getting a quote
Want a quote for AHU cleaning? Please call 0345 646 2711, or email photos and tell us about the site. We will talk you through the work and give you a fixed quote before you commit to anything.
Read more
Ventilation in Hexton buildings
Food Standards Agency data includes about 3 caring premises (care homes, nurseries and hospitals) within roughly a mile and a half of the centre of Hexton. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. For Hexton, the closest hospital is Keech Hospice Care, roughly 3.2 miles south-west. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital. Hexton, about 34 miles from central London, is within our usual area. Visits are booked around your hours, evenings and weekends included.
If you run a surgery, dental practice or care home near Hexton, clean ventilation matters as much to you as to a hospital like Keech Hospice Care (about 3.2 miles south-west).
Hexton is in Hertfordshire. We carry out AHU cleaning for commercial premises of every kind in Hexton and the rest of Hertfordshire. Our area takes in 381 places across Hertfordshire, from busy centres to quieter spots. There’s also a page for Milton Keynes, roughly 17 miles from Hexton.
All of SG5 is covered for AHU cleaning, from busy streets to back roads. Neighbouring places we cover for AHU cleaning include Pegsdon (1 mile east), Apsley End (2 miles north-east), Hanscombe End (2 miles north), Shillington (3 miles north-east) and Pirton (3 miles east). Further out, we also cover Hemel Hempstead (15 miles south), Stevenage (10 miles south-east), St Albans (15 miles south), Welwyn Garden City (14 miles south-east), Harpenden (10 miles south) and Hitchin (5 miles east).
Near you in Hexton
Locally, jobs take us to businesses close to Recreation Ground. The nearest railway station is Harlington station, about 4.5 miles west of the centre. Nearby you will also find Ravensburgh Castle (0.9 miles south-west) and John Dony Field Centre (3.9 miles south). The countryside around Hexton includes Butts Hill and Barton Gravel Pit.
Between visits
Simple habits between visits make a real difference. We recommend:
- Book the next check in line with the report
- Change filters on schedule and log each change
- Clear leaves and litter away from the intake
- Store the TR19 paperwork where auditors can find it
If the ductwork hasn’t been cleaned, consider it next. A clean unit feeding dirty ducts only solves half the problem, and we can survey both.
Don’t let leaves, litter or stored materials build up near the fresh air intake. Anything around the intake is likely to be drawn in.
Fixed quotes for AHU cleaning in Hexton
We quote each job individually. These are the things that affect it:
- Site rules, permits and inductions
- Travel, parking and unloading
- The number of sites or systems
- Access, including roofs, risers and ceiling voids
No two sites are the same, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all make a difference.
What we need to know
There’s no need for technical detail. It helps if you can send:
- How we’d reach plant on a roof or in a plant room
- The postcode and the type of business
- When the site is open and when it’s quiet
- Any previous report or certificate
Here’s what helps us quote: the address, the type of site and when it’s open, pictures of the system and any previous report or certificate. Then phone us on 0345 646 2711 or drop us a line.
For landlords and multi-site operators
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, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side, and the report can go to both.