Surrey · Air handling unit cleaning
AHU Cleaning in Betchworth
AHU cleaning for commercial sites in Betchworth and across Surrey. CHAS, SafeContractor and ISO 9001, and fully insured.
- Odours coming through the supply air
- Air handling units with blocked filters
- Air handling units due a clean after building work
What happens on the day
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. The work on site takes a single shift for a typical unit, longer for large or heavily soiled ones, and the area is cleaned down before we leave. If the van will struggle with a lane or gateway near Betchworth, let us know and we will plan around it.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Getting ready for the visit
- Make sure equipment near the work can be switched off and left to cool
- Tell us about site rules, permits or sign-in
- Clear loose items from the work area
Get a fixed quote
The quickest way to a quote is to send pictures: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and many jobs can be priced from that alone.
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About our AHU cleaning in Betchworth
A cooling coil drips condensate into a tray that should drain away. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Cleaning and clearing it is a key part of the job. We are often asked to deal with blocked condensate drains and slimy trays and fan sections that haven’t been cleaned in years, across heating and cooling coils, dampers and louvres and supply and extract fans.
Somewhere as small as Betchworth, ducted ventilation is normally limited to a school, a care home, a surgery or a converted business building, wherever there is one, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
We have been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Place
- Betchworth (RH3)
- Region
- Surrey
- Reporting
- Photo report after each visit
- Price
- A fixed price before we start
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
AHU cleaning in Betchworth: local notes
Food Standards Agency records list about 3 hospitals, care homes and childcare premises registered as food businesses within roughly a mile and a half of the centre of Betchworth. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. About 3.6 miles north of Betchworth is Headley Court, the nearest hospital. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. At about 19 miles from central London, Betchworth sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site.
If you manage shops or offices close to Betchworth station, a TR19® Air inspection shows whether the ductwork needs cleaning. If you run a surgery, dental practice or care home near Betchworth, clean ventilation matters as much to you as to a hospital like Headley Court (about 3.6 miles north).
Betchworth is about 3 miles east of Dorking, in Surrey. Betchworth gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with photos. Our Surrey coverage runs to 395 places, and Betchworth is one of them. For sites nearby, see our Guildford page (13 miles or so).
Here we cover the RH3 postcode area for AHU cleaning. If you need AHU cleaning at premises on The Street, Station Road and Old Reigate Road or anywhere close by, we can help. We also cover Buckland (1 mile east), Brockham (1 mile south-west), Box Hill (1 mile north-west), Strood Green (1 mile south-west) and Dawesgreen (2 miles south). Within a short drive, we also cover Guildford (13 miles west), Woking (14 miles west), Epsom (7 miles north), Horley (6 miles south-east), Redhill (4 miles east) and Ewell (8 miles north).
Around Betchworth
We work in commercial kitchens and buildings around The Red Lion pub and Brockham Limeworks. For rail, the closest station is Betchworth station, roughly 0.5 miles north of the centre. A little further out are Reigate Priory Museum (2.7 miles east) and Headley Court (3.6 miles north). Open spaces near Betchworth include Reigate Heath and Box Hill.
Keeping the system healthy
No system stays clean for ever, but care slows the build-up. Our tips:
- Keep inspection doors on the unit in good order
- Report water on the plant room floor
- Plan the next inspection before the last report gets filed away
- Stick to the filter change plan
You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.
Check drain trays and condensate drains during routine maintenance. A drain that’s cleared early never gets to the slime stage.
Do you need AHU cleaning in Betchworth?
Air handling units are usually tucked away on roofs, in plant rooms or above ceilings and are rarely seen by anyone but maintenance staff. Months can pass without anyone looking inside.
The symptoms we’re asked about most are:
- Coils clogged with dust and debris
- Dust built up on fan impellers
- Air handling units with blocked filters
- Leaves and litter drawn into the unit
School buildings such as North Downs Primary School are typically done in the holidays, so classrooms aren’t disturbed.
Questions to ask before booking
- What hours they’ll be on site
- How they set the interval to the next visit
- If they look at the system before pricing
- What happens if part of the system can’t be accessed
For landlords and multi-site operators
Records are where multi-site compliance often slips. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements and we will come back with a fixed quote.
What AHU cleaning can’t fix
We will not sell you work that does not address the problem, so here are the limits:
- Problems with the unit’s controls or sensors
- Breakdowns that need a mechanical engineer
- Coils that are corroded or leaking and need replacing
If you are not sure, just ring 0345 646 2711 or send us an email and we’ll give you a straight answer.
What we work on in Betchworth
- Dampers and louvres
- Supply and extract fans
- Filter sections
- Drain trays
- Internal panels
- Heating and cooling coils
Nearby places to Betchworth
Also in Betchworth
FAQs for Betchworth
Can you do AHU cleaning in Betchworth?
Yes. Our area runs across London and the South East, Betchworth included. Get in touch with the details and we’ll arrange a survey.
Do you cover smaller places like Betchworth?
Yes. Villages and rural sites across the South East are part of our work, Betchworth included. Photos of the system and directions to the site help us plan the visit.
What’s TR19?
It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It covers how systems are inspected, cleaned and checked, and it takes a risk-based approach.
Which sectors do you work in?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
What does AHU cleaning cost?
We do not publish prices, because the cost depends on the job: how big it is, what state it’s in, how we reach it and the working hours. We fix the price before we start.
How far ahead should we book?
It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and for anything urgent, ring our 24/7 emergency line.
What do you clean inside the unit?
Every section that collects dirt: filters, coils, tray, fan and panels. The survey confirms what’s in your unit before we quote.
Can you come out in an emergency?
Yes, day and night, every day of the year. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
What affects the cost of AHU cleaning
Your quote is based on your site. We take into account:
- How easy every part is to reach
- One-off work versus a regular cycle
- When the work can happen, such as evenings, overnight or weekends
- The number of sites or systems
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you’re not sure what’s needed, call us on 0345 646 2711 or send us an email for straight advice and a fixed quote.
What to send for a quote
When you contact us, these details help:
- When the site is open and when it’s quiet
- Detail shots of panels, filters and grilles
- The postcode and the type of business
- Any symptoms, from odd noises to smells or leaks
We do not publish a price list, because every site is different. We look at your system first, from photos or on a visit, and then send you a fixed quote. To get going, ring 0345 646 2711, or send details by email.
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, and that is where we come in.
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.