Surrey · Air handling unit cleaning
South Holmwood AHU cleaning
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for South Holmwood, with a survey first and a report with pictures at the end. Ask us for a fixed quote.
- Blocked condensate drains and slimy trays
- Rooms that smell stuffy when the system runs
- Air handling units due a clean after building work
About our AHU cleaning in South Holmwood
A cooling coil drips condensate into a tray that should drain away. When the drain blocks, water sits there and the tray turns slimy, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. If you have units needing a clean before a new tenant or handover and plant that has been serviced but not cleaned, we can help, from drain trays, internal panels and supply and extract fans onwards.
For a building in or near South Holmwood, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
It’s worth checking any contractor’s accreditations. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Location
- South Holmwood (RH5)
- Region
- Surrey
- Reporting
- Report and pictures after the visit
- Quote
- A fixed price before any work starts
- Hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Managing agents and facilities teams in South Holmwood
For anyone managing more than one site, we can schedule visits across all of them on one quote. Each site gets its own report and photos, so each one has its own record.
We also work for facilities teams across offices, schools and healthcare in South Holmwood and across Surrey. Larger estates can be phased building by building around the people who use them.
Nearby places to South Holmwood
Also in South Holmwood
Part by part
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. A clean gets air moving through the coil properly again.
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 the housing around them is cleaned too.
Your questions about AHU cleaning in South Holmwood
Can you get to a site in South Holmwood?
Yes. South Holmwood is within the area we cover across London and the South East. Just mention lanes, gates or anything else about the site when you book.
Is South Holmwood in your area for AHU cleaning?
Yes, South Holmwood is covered. To start, call 0345 646 2711 or drop us a line with a few pictures of the system.
How do you protect the area?
With sheeting and covers, before anything else happens. We keep the work contained and leave the area clean.
How long does an AHU clean take?
As a guide, it takes a single shift for a typical unit, longer for large or heavily soiled ones. The shutdown is planned to fit, out of hours if needed.
Do you look at the system first?
Yes. Every job is surveyed first, either from photos and details you send or on a site visit. Then you get a fixed quote.
Can you come out in an emergency?
Yes. Our emergency line runs 24/7, for problems that can’t wait. Ring any time and tell us what’s happened.
What if parts of the system cannot be reached?
Anything we cannot reach goes on the report, with pictures where possible, and we tell you what would make it reachable, such as extra access panels in ductwork.
Can you fix a faulty AHU?
We clean the unit and flag faults rather than repair them, with photos where it helps.
Fixed quotes for AHU cleaning in South Holmwood
Every site gets its own quote. These are the things that affect it:
- Travel, parking and unloading
- The size of the system
- When the work can happen, such as evenings, overnight or weekends
- How many systems or sites are involved
What you pay reflects the actual work. That is why we survey first, from pictures or on site, and why the quote is fixed before any work starts.
Helping us quote
A few details help us quote accurately. With your enquiry, please include:
- Close-ups of filters, grilles, hatches or access panels
- Where the site is and what kind of site it is
- Any previous report or certificate
- The roof, plant room or outside wall the system runs to
Want a quote for AHU cleaning? Please call us on 0345 646 2711 or email us and tell us about the site. We will explain what we’d do and send a fixed quote before you commit to anything.
What AHU cleaning looks like in South Holmwood
We cover South Holmwood, about 23 miles from central London, as part of our work across London and the South East. The visit is fixed around your opening hours, not ours.
School buildings such as The Priory CofE Voluntary Aided School are typically done in the holidays, so classrooms are not disturbed.
South Holmwood is about 3 miles south of Dorking, in Surrey. For AHU cleaning in and around South Holmwood, it’s easy to get a fixed quote: please phone us on 0345 646 2711 or send us an email. We work across South East England and London, including South Holmwood. We cover 395 places across Surrey, large and small. There’s also a page for Guildford, about 11 miles away.
AHU cleaning in RH5 is surveyed, quoted and booked the same way as anywhere else. AHU cleaning is available to premises on Warwick Road, Norfolk Road and Milford Court and the roads around them. Neighbouring places we cover for AHU cleaning include Holmwood Corner (1 mile south-east), Beare Green (1 mile south), Coldharbour (2 miles south-west), Friday Street (3 miles west) and Abinger Bottom (3 miles west). Further out, we also cover Guildford (11 miles west), Woking (14 miles north-west), Epsom (10 miles north), Horley (7 miles east), Redhill (7 miles north-east) and Ewell (12 miles north).
Near you in South Holmwood
Around South Holmwood, our work takes us to kitchens and buildings near Inholms Clay Pit and The Norfolk Arms. South Holmwood’s nearest station is Holmwood station, about 0.8 miles south of the centre. A little further out are Mesolithic Museum (3.6 miles west) and Betchworth Castle (3.4 miles north). The countryside around South Holmwood includes Leith Hill and Vann Lake.
How it works
A visit follows the same order every time: protect the area, isolate whatever needs isolating, do the work, clear away and hand over the paperwork. On site, the work takes from a few hours for a compact unit to a day or more for a large one. For a village or hamlet like South Holmwood, tell us about narrow lanes, gates and parking when you book.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before pictures of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- We take after photos and issue the certificate and report.
Getting ready for the visit
- Move anything stored near the system
- Mention any locked doors, roof access or ceiling voids
- Name a contact who can let us in at the agreed time
Getting a quote
Every quote begins with a look at the system, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work, before work begins.
Related advice
Common problems we fix in South Holmwood
Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. Months can pass without anyone looking inside.
If you notice any of these, it’s worth a diagnosis:
- Condensate trays that will not empty
- Odours coming through the supply air
- Leaves and litter drawn into the unit
- Dust-coated heating and cooling coils
If you manage shops or offices close to Holmwood station, a TR19® Air inspection shows whether the ductwork needs cleaning.
What your quote should include
- What happens if part of the system can’t be accessed
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether they recommend a next date
- Whether a survey comes first
Between visits
Here’s the after-treatment advice, short and simple:
- Look at the condensate drain whenever the unit is serviced
- Watch for drips or damp patches near the plant
- Change filters on schedule and log each change
- Do not store bins or materials near the intake
When we have closed the unit up, it can be restarted with your site team. Keep an eye on the condensate drain over the next few days to make sure it stays clear.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air, rather than waiting for a problem.
What a clean won’t put right
We’ll always give you a straight diagnosis, so here’s what this work can’t put right:
- Mechanical faults with motors, belts or bearings
- Building management system faults
- Ductwork downstream of the unit, which is a separate clean
Not sure which it is? You can call 0345 646 2711 or drop us a line and we’ll tell you honestly.
Where we work
- Drain trays
- Supply and extract fans
- Filter sections
- Dampers and louvres
- Internal panels
- Heating and cooling coils