Surrey · Air handling unit cleaning
Ockham AHU cleaning
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for commercial sites in Ockham and across Surrey. CHAS, SafeContractor and ISO 9001, and fully insured.
- Dirty coils holding back the airflow
- Odours coming through the supply air
- Leaves and litter drawn into the unit
AHU cleaning in Ockham
Think of an AHU clean as a full check-up for the ventilation. Every section is opened, cleaned and photographed, so the report shows exactly what was done. The work covers drain trays, heating and cooling coils and supply and extract fans, and common reasons people get in touch are leaves and litter drawn into the unit and rooms that smell stuffy when the system runs.
In a village or hamlet like Ockham, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
The report is your system’s health record: dated, with photos, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal, ready for your insurer.
- Place
- Ockham (GU23)
- Wider area
- Surrey
- Records
- Photo report after each visit
- Price
- A fixed price before any work starts
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Leave it or put it right?
When the unit is clean, less dirt reaches the ducts, so the ducts and grilles stay cleaner between cleans. It also means the next inspection has less to find. Systems in rural buildings are often out of sight and out of mind.
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
Why us?
- One contact for all your sites in London and the South East
- Fully insured
- Trading since 2009
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Keeping the system healthy
Aftercare is simple, and it helps at the next visit:
- Watch for drips or damp patches near the plant
- Report stiff or damaged access doors
- Change filters on schedule and log each change
- Do not ignore odours coming through the grilles
The report suggests a date for the next inspection or clean, taking into account how dirty it was. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
AHU cleaning around Ockham
At about 21 miles from central London, Ockham sits well inside the area we cover. Visits are booked around your hours, evenings and weekends included. Woking Community Hospital is the nearest hospital, about 4.4 miles west of Ockham. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
For schools like Ripley Court School, the holidays are the usual time to inspect and clean ventilation.
Ockham is about 5 miles east of Woking, in Surrey. Wherever you are in the GU23 postcode area, we can carry out AHU cleaning at your premises. 395 places in Surrey are on our list, large and small. For sites nearby, see our Guildford page, about 6 miles away.
We work across the GU23 postcode area for AHU cleaning and the streets around it. We cover sites on Alms Heath, Ockham Lane and School Lane and the roads around them. We also cover the places around Ockham: West Horsley (2 miles south), Ripley (2 miles west), East Horsley (2 miles south-east), Effingham (3 miles south-east) and East Clandon (3 miles south). Further out, we also cover Guildford (6 miles south-west), Woking (5 miles west), Camberley (12 miles west), Epsom (9 miles east), Horley (15 miles south-east) and Redhill (13 miles east).
Landmarks near Ockham
Around Ockham, our work takes us to kitchens and buildings near The Forest and the Highlands and The Black Swan pub and the streets around them. Ockham’s nearest station is Horsley station, about 1.7 miles south-east of the centre. Nearby you’ll also find Send and Ripley History Society Museum (1.5 miles west) and Woking Community Hospital (4.4 miles west). For a walk, there’s Boldermere Lake and Papercourt Marshes.
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:
- Faulty motors, drives or bearings
- Ductwork downstream of the unit, which is a separate clean
- Damaged coils beyond cleaning
Not sure which it is? You can call 0345 646 2711, or email photos and we will tell you honestly.
Where we work
- Dampers and louvres
- Filter sections
- Supply and extract fans
- Drain trays
- Internal panels
- Heating and cooling coils
Multi-site and managed buildings
We also work for facilities teams across offices, schools and healthcare in Ockham and across Surrey. Larger estates can be phased building by building around the people who use them.
We regularly work with managing agents. Send the address, what’s needed and how access works and we will come back with a fixed quote.
Do you need AHU cleaning in Ockham?
Air handling units are typically 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.
What we’re most often called out for:
- Intake sections clogged with outdoor debris
- Drain trays holding standing water
- Stale or musty smells from the ventilation
- Dirty filters cutting the airflow
Healthcare buildings such as Woking Community Hospital, about 4.4 miles west, depend on their ventilation; if you manage a surgery, clinic or care home near Ockham, yours matters too.
Questions to ask before booking
- What paperwork you get at the end
- If the quote is a fixed price or an estimate
- What happens if part of the system cannot be accessed
- When they can work, and whether that’s outside your opening hours
What the work involves, part by part
Drain trays
Standing water in a tray sits right where the air passes. We clean it and note if the slope or the drain needs attention.
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. The impeller, its housing and the fan chamber are cleaned.
Ockham questions
Can you clean school ventilation in Ockham during the holidays?
Yes. The holidays are the usual time for school work. Around Ockham, the Food Standards Agency lists about 2 schools and colleges with registered kitchens within a mile and a half or so. Send us your term dates when you phone us on 0345 646 2711 or use the quote form, and we will fit the work in.
Can you come to Ockham after we close?
Yes, we can come after you close and finish before you open. That way a site in Ockham doesn’t have to lose a day’s trading. Tell us your opening hours when you ask for a quote.
What do you need from me for a quote?
Where the site is, what it is and when it’s open, along with a few photos and any previous report.
Can we book visits on a schedule?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, depending on what the system needs.
Which accreditations do you hold?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We have been trading since 2009 and we’re fully insured.
Which parts of an air handling unit do you clean?
Everything inside the unit that air passes over, from the intake and filters through the coils and fan to the outlet. The photo report shows each section before and after.
How long will the unit be out of action?
The work takes anything from half a day for one small unit to several shifts for a plant room full of them. Bigger units can be phased, and you can call 0345 646 2711 or email us to plan it.
Can one contract cover all our sites?
Yes. You deal with one contact for every site in our area, with visits on a regular schedule.
Also near Ockham
Other services in Ockham
What happens on the day
There are three stages on the day: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with pictures. The middle part takes longest, which takes anything from half a day for one small unit to several shifts for a plant room full of them. Rural roads and tight entrances are worth telling us about before a visit to Ockham.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before pictures of each section of the unit.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- After photos are taken and the certificate issued.
How to prepare
- Name a contact who can let us in at the agreed time
- Find the previous report, if there is one
- Let us know about parking and loading
Getting a quote
To help us quote: the address, the type of site and when it’s open, photos of the system and any previous report or certificate. Once you have those, phone us on 0345 646 2711 or email us.