Surrey · Air handling unit cleaning
AHU Cleaning in Mid Holmwood
AHU cleaning for Mid Holmwood, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Dust built up on fan impellers
- Stale or musty smells from the ventilation
- Air handling units with blocked filters
Multi-site and managed buildings
Records are where multi-site compliance often slips. Every visit ends with a dated report and photos, so you can show an insurer or inspector what was done at each site.
Running several sites is easier with one contractor. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
AHU cleaning in Mid Holmwood
Our AHU cleans for sites in Mid Holmwood cover the parts that collect dirt: filters, coils, drain trays, fans and the internal panels. You get a TR19® certificate and a photo report showing the unit before and after. The work covers heating and cooling coils, drain trays and internal panels, and people most often call us about dust built up on fan impellers and plant that has been serviced but not cleaned.
Somewhere as small as Mid Holmwood, ducted ventilation is usually 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.
The sign-off is always in writing: a written report, dated and illustrated with photos, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Where
- Mid Holmwood (RH5)
- Wider area
- Surrey
- Records
- Report and pictures after the visit
- Price
- A fixed quote up front
- Working hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Ventilation in Mid Holmwood buildings
The FSA’s food hygiene register lists about 3 caring premises (care homes, nurseries and hospitals) with registered kitchens or food service in and around Mid Holmwood, up to about a mile and a half out. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Mid Holmwood, about 23 miles from central London, is within our usual area. A survey and a fixed quote come first, then the visit at a time that suits you.
An inspection comes first for any ventilation job around Mid Holmwood, so the cleaning matches what’s there.
Mid Holmwood is about 2 miles south of Dorking, in Surrey. Every kind of commercial site in Mid Holmwood, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so trading is not interrupted. Across Surrey, we cover 395 places, and Mid Holmwood is one of them. Guildford is in our area too, about 11 miles from Mid Holmwood.
All of RH5 is within our area for AHU cleaning, from the main roads to the quietest streets. You will find streets such as Horsham Road, Swallow Lane and Mid Holmwood Lane, all of which we cover for AHU cleaning. We also cover North Holmwood (1 mile north-east), Blackbrook (1 mile north-east), Dorking (2 miles north), Westcott (2 miles north-west) and Wotton (3 miles west). Within a short drive, we also cover Guildford (11 miles west), Woking (13 miles north-west), Epsom (10 miles north), Horley (7 miles east), Redhill (7 miles east) and Ewell (11 miles north).
What’s near Mid Holmwood
Around Mid Holmwood, our work takes us to kitchens and buildings near Inholms Clay Pit, The Priory CofE Voluntary Aided School and The Norfolk Arms, among other places. The nearest railway station is Holmwood station, roughly 1.6 miles south. A little further out are Betchworth Castle (2.7 miles north-east) and Mesolithic Museum (3.4 miles west). Green spaces nearby include Vann Lake and Leith Hill.
What your team can do, and what needs us
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We’ll take a look and send you a fixed quote.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
Part by part
Filters
Filter condition tells you a lot about the rest of the unit. They’re photographed before and after for your records.
Rooftop and plant room units
Units outside are exposed to weather and windblown debris. We clean the intake and first stage of filters along with the rest.
When to call us in Mid Holmwood
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.
Keep an eye out for these warning signs:
- Dust-coated heating and cooling coils
- Units that have only ever had filter changes
- Filters that are clogged or overdue
- Dust built up on fan impellers
If you manage a school such as St John's Church of England Primary School, ventilation cleaning is best booked for the holidays.
What your quote should include
- Whether the whole system is included, or only the parts that are easy to reach
- Whether inaccessible sections are listed on the report
- Whether they recommend a next date
- Whether the figure could change on the day
What we do, step by step
We turn up at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool first, and the area around the work is covered and protected. The work itself takes a single shift for a typical unit, longer for large or heavily soiled ones. If you can send pictures, we can arrive in Mid Holmwood knowing what to expect.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before photos of each section of the unit.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- We take after pictures and issue the certificate and report.
Getting ready for the visit
- Agree a time when the area can be out of use
- Name a contact who can let us in at the agreed time
- Clear the space around the work
Getting a quote
We don’t 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 get going, phone us on 0345 646 2711, or email photos.
Related advice
When something else is needed
Not every problem is solved by AHU cleaning, and we’ll tell you before any work starts. It won’t put right:
- Problems with the unit’s controls or sensors
- Ductwork downstream of the unit, which is a separate clean
- Ventilation that was badly designed in the first place
If in doubt, phone us on 0345 646 2711, or send details by email and we will say what we think.
Where we work
- Heating and cooling coils
- Supply and extract fans
- Drain trays
- Filter sections
- Dampers and louvres
- Internal panels
Looking after it afterwards
Once we’ve finished, these simple steps help:
- Note any water around the unit or leaks below it
- Report stiff or damaged access doors
- Keep the area around the fresh air intake clear
- Book the next check in line with the report
Restart the unit with your site team or maintenance contractor once we’ve finished. Keep an eye on the condensate drain over the next few days to confirm water is draining away.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.
Mid Holmwood questions
Is Mid Holmwood within the area you cover?
Yes, we work in villages as well as towns, and Mid Holmwood is covered. The journey is planned ahead, so a few details about the route help.
Can you do AHU cleaning in Mid Holmwood?
Yes. Our area runs across London and the South East, Mid Holmwood included. To start, call us on 0345 646 2711 or email us with a few photos of the system.
Do you offer maintenance contracts?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, depending on what the system needs.
Does the AHU have to be shut down for cleaning?
Yes, while the clean is under way. Out-of-hours work is available to keep disruption down.
Can you quote from photos?
Normally, yes. Send a few wide photos plus close-ups of panels, filters or grilles, and a fixed quote usually follows within one working day. Some sites still need a visit, and we’ll say so.
How long will the unit be out of action?
Expect it to take a single shift for a typical unit, longer for large or heavily soiled ones. The unit’s size and condition make the biggest difference, and the quote will give you a clear idea.
How much notice do you need?
Book as early as you can for planned work, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
What does TR19 mean?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.