Surrey · Air handling unit cleaning
AHU Cleaning in South Earlswood
AHU cleaning for commercial sites in South Earlswood and across Surrey. CHAS, SafeContractor and ISO 9001, and fully insured.
- Dust built up on fan impellers
- Dirty coils holding back the airflow
- Condensate trays that will not empty
What a clean won’t put right
An honest diagnosis matters more to us than a booking, so here’s what AHU cleaning won’t do:
- Damaged coils beyond cleaning
- The supply and extract ducts, quoted separately
- Mechanical faults with motors, belts or bearings
Not sure which it is? You can call 0345 646 2711, or send details by email and we’ll tell you honestly before you book.
Where we work
- Internal panels
- Dampers and louvres
- Filter sections
- Supply and extract fans
- Heating and cooling coils
- Drain trays
AHU cleaning in South Earlswood
The fan pushes every bit of air in the system, so dust on its blades and housing ends up in the airstream. Fan, housing and the surrounding panels are cleaned as part of the job, once the unit has been shut down and isolated. The work covers heating and cooling coils, internal panels and dampers and louvres, and people most often call us about debris and leaves in the fresh air intake and units needing a clean before a new tenant or handover.
For a building in or near South Earlswood, 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.
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.
- Location
- South Earlswood (RH1)
- Region
- Surrey
- Paperwork
- Report and photos after the visit
- Price
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
What your team can do, and what needs us
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
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 will take a look and send you a fixed quote.
What AHU cleaning looks like in South Earlswood
Food Standards Agency data includes about 6 schools, colleges and universities and about 7 care, childcare and hospital premises within 1.5 miles or so of the middle of South Earlswood. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. We cover South Earlswood, about 20 miles from central London, as part of our work across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site. The nearest hospital to South Earlswood is East Surrey Hospital, about within half a mile north-east. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
Wherever a school like Salfords Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time. Workplaces around Earlswood (Surrey) station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts.
South Earlswood is about 2 miles south of Redhill, in Surrey. Sites in South Earlswood get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. Across Surrey, we cover 395 places, and South Earlswood is one of them. Guildford is in our area too, about 18 miles from South Earlswood.
Work in RH1 follows the same survey, fixed quote and written report as everywhere else we cover. We cover sites on Maple Road, Heston Road and Horley Road and the roads around them. Other places close to South Earlswood include Earlswood (1 mile north), Salfords (1 mile south), Meadvale (1 mile north-west), Redhill (2 miles north) and South Nutfield (2 miles north-east). Larger places within reach include Epsom (9 miles north-west), Ewell (10 miles north), Caterham (6 miles north-east), Dorking (7 miles west), Ashtead (9 miles north-west) and Leatherhead (9 miles north-west).
Landmarks near South Earlswood
Locally, jobs take us to businesses close to The Flying Scud pub, Reigate School and Earlswood Common. For rail, the closest station is Earlswood (Surrey) station, about 0.9 miles north. Well-known places in the area include The Belfry (1.8 miles north) and Reigate Priory Museum (2.2 miles north-west). For a walk, there’s Mercers Lake and Colley Hill.
Fixed quotes for AHU cleaning in South Earlswood
We do not publish a price list, because sites vary so much. What we look at:
- The times the site is available
- The condition of the system
- How easy every part is to reach
- Any permits to work or inductions
Working hours, access and the scale of the site all affect the cost. We take each of them into account and give you a fixed price before any work starts.
What to send for a quote
A few details help us quote accurately. When you get in touch, it helps to send:
- Close-ups of filters, grilles, hatches or access panels
- Any symptoms, from odd noises to smells or leaks
- Your last certificate, test record or report
- Where the site is and what kind of site it is
Quoting starts with a diagnosis, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work so you know the cost before work begins.
Other services in South Earlswood
How the job changes from site to site
Drain trays
The drain tray collects water from the cooling coil. Standing water and slime are removed and the outlet is checked.
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. Cleaning keeps it running as intended.
When to call us in South Earlswood
Cooling coils create condensation, and that water has to go somewhere. If the drain tray outlet blocks or the tray does not fall properly, water stands in it, and slime and smells soon follow.
What we are most often called out for:
- Air handling units due a clean after building work
- Intake sections clogged with outdoor debris
- Stale or musty smells from the ventilation
- Dust-coated heating and cooling coils
Healthcare buildings such as East Surrey Hospital, about within half a mile north-east, depend on their ventilation; if you manage a surgery, clinic or care home near South Earlswood, yours matters too.
Questions to ask before booking
- What hours they’ll be on site
- How they set the interval to the next visit
- Whether a survey comes first
- What happens if part of the system can’t be accessed
The process
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 the same goes into the written report. The visit takes from a few hours for a compact unit to a day or more for a large one. A quick note on how to find the site and where to park makes a visit to South Earlswood run smoothly.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- The unit is shut down with your site team and the area protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- We clean out the drain tray and make sure it drains.
- You get a TR19® certificate and a photo report.
Getting ready for the visit
- Dig out any earlier paperwork for the system
- Let us know about parking and loading
- Name a contact who can let us in at the agreed time
Get a fixed quote
Want a quote for AHU cleaning? Please call us on 0345 646 2711 or email us and tell us about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
Read more
Looking after it afterwards
Looking after the system between visits is straightforward, and it helps at the next visit:
- Note any water around the unit or leaks below it
- Book the next check in line with the report
- File each AHU report in the maintenance log
- Make sure condensate is draining away
When we have closed the unit up, it can be restarted with your site team. Check the drain tray is emptying over the first few days to confirm water is draining away.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air, rather than waiting for a problem.
South Earlswood questions
Do you work at weekends in South Earlswood?
Yes, out-of-hours work is a big part of what we do. It means the site in South Earlswood keeps running as normal. Tell us your opening hours when you ask for a quote.
Is South Earlswood within the area you cover?
Yes. Villages and rural sites across the South East are part of our work, South Earlswood included. Photos of the system and directions to the site help us plan the visit.
Do you clean the ductwork as well?
Yes, the ductwork, grilles and diffusers the unit serves. We will tell you after the survey whether the ducts need it.
Will we get paperwork for the AHU clean?
Yes. A TR19® certificate and photo report are sent after the clean, including anything we think needs attention.
Are you accredited?
Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
Can one contract cover all our sites?
Yes. You deal with one contact for every site in our area, and visits can be set on a regular cycle.
Is a quote from pictures possible?
Yes, where the pictures show enough. If not, a site survey comes first, then a fixed quote.
How much notice do you need?
It depends on the time you need and how big the job is. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.