Surrey · Air handling unit cleaning
Air handling unit cleaning in Hurst Green, Surrey
Our technicians work in Hurst Green on cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Out-of-hours visits, a fixed quote and a written report with photos on every job.
- Stale or musty smells from the ventilation
- Debris and leaves in the fresh air intake
- Drain trays holding standing water
About our AHU cleaning in Hurst Green
An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with photos, so you can see the unit’s condition for yourself. If you have drain trays holding standing water and dirty filters cutting the airflow, we can put it right, from filter sections, dampers and louvres and drain trays onwards.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, which makes them easy to overlook.
Accreditations are easy to claim and worth checking. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Where
- Hurst Green (RH8)
- Wider area
- Surrey
- Reporting
- Photo report after every visit
- Price
- Fixed quote, normally within a working day
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026

How the visit works
Each visit runs to the same pattern: protect the area, make the system safe, carry out the AHU cleaning, clear away and leave you the report. The visit itself takes half a day to a full day per unit, with large plant planned over several shifts. Photos of the system and how to reach it help us plan a visit to Hurst Green.
- 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.
- We close every panel, hand the unit back and send the report and certificate.
Getting ready for the visit
- Allow time for equipment near the work to be turned off and cool down
- Dig out any earlier paperwork for the system
- 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.
Advice
Landlords, agents and facilities managers
Records are where multi-site compliance often slips. Each visit produces a dated report with pictures, ready to show insurers, fire officers or EHOs.
From a single site to a large estate, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with photos.
Common questions in Hurst Green
Can you work in Hurst Green outside opening hours?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Hurst Green needn’t be disturbed. Just give us a ring on 0345 646 2711, or send details by email with your opening times and we’ll plan around them.
Can ventilation in schools around Hurst Green be cleaned out of term?
Yes, out-of-term visits are normal for schools. Food Standards Agency records list about 5 schools, colleges and universities with registered kitchens within about a mile and a half of Hurst Green. Send us your term dates when you ring 0345 646 2711 or email us, and we will fit the work in.
Do you give a certificate after the clean?
Yes, both a certificate and a report with photos. The report also suggests when the unit should next be inspected.
Can we book visits on a schedule?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.
Can you look after several sites?
Yes. One number covers all your sites across London and the South East, with visits on a regular schedule.
Do you offer emergency callouts?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
What do you need from me for a quote?
A short description and a few photos plus the address and your hours. If we need more, we will ask.
How much notice should we give?
For planned work, earlier is better, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
How we price AHU cleaning
You will get a fixed price before work begins. It takes into account:
- The times the site is available
- What state the system is in
- Parking and loading at the site
- Whether we need access equipment or extra panels
Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at, and you will get one fixed quote.
Asking for a quote
When you call or email, these details help:
- Detail shots of panels, filters and grilles
- The times we could work without disrupting the site
- Wide photos of the system and the area around it
- Any previous report or certificate
Want a quote for AHU cleaning? Please call 0345 646 2711, or email photos with a few details about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
Nearby places to Hurst Green
More services for Hurst Green
Hurst Green buildings and their air
There are about 5 schools, colleges and universities and about 9 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register in Hurst Green and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. At about 18 miles from central London, Hurst Green sits well inside the area we cover. Evening, overnight and weekend visits are all possible. Hurst Green’s nearest hospital, Foetal Alcohol Spectrum Disorders Clinic, is about 0.9 miles north. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
Healthcare buildings such as Foetal Alcohol Spectrum Disorders Clinic, about 0.9 miles north, depend on their ventilation; if you manage a surgery, clinic or care home near Hurst Green, yours matters too. For workplaces around Hurst Green station with mechanical ventilation, cleaning can be done in the evening or at weekends.
Hurst Green is about 1 mile south of Oxted, in Surrey. Hurst Green 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. Hurst Green is one of 395 towns, villages and districts in Surrey where we work for AHU cleaning. For sites nearby, see our London page, about 18 miles away.
Every address in RH8 is covered for AHU cleaning, from the main roads to the quietest streets. You will find streets such as Oast Road, Spring Lane and Quarry Road, and we cover them all for AHU cleaning. We also cover the places around Hurst Green: Oxted (1 mile north), Limpsfield (1 mile north-east), Pains-Hill (1 mile east), Tandridge (2 miles west) and Merle Common (2 miles south-east). Within a short drive, we also cover Epsom (13 miles north-west), Horley (9 miles south-west), Redhill (7 miles west), Ewell (13 miles north-west), Reigate (9 miles west) and Caterham (5 miles north-west).
Local landmarks in Hurst Green
Around Hurst Green, our work takes us to kitchens and buildings near Hazelwood School and Oxted School. Hurst Green has its own railway station: Hurst Green station. Nearby you’ll also find Haxted Watermill Museum (4 miles south) and Bletchingley Castle (4.6 miles west). For a walk, there’s Bay Pond and Botley Hill.
When it’s something else
Before you book, it helps to know what’s not included:
- Problems with the unit’s controls or sensors
- Ventilation that was badly designed in the first place
- Leaking heating or cooling coils
Not sure which it is? You can ring 0345 646 2711, or email photos and we will tell you honestly.
What the work covers
- Dampers and louvres
- Filter sections
- Internal panels
- Drain trays
- Supply and extract fans
- Heating and cooling coils
Do you need AHU cleaning in Hurst Green?
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. The intake section and first filters take the brunt, and the finer material travels on.
Common reasons sites call us are:
- Fan sections that haven’t been cleaned in years
- Condensate trays that won’t empty
- Plant that needs cleaning after a refit
- Air handling units with blocked filters
School buildings such as Hurst Green Infant School are typically done in the holidays, so classrooms aren’t disturbed.
What your quote should include
- Whether the work can be done while the site is closed
- Whether the whole system is included, or only the parts that are easy to reach
- If the quote is a fixed price or an estimate
- When the next visit should be, and why
Part by part
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. They’re cleaned using methods that will not bend or flatten the fins.
Drain trays
Condensate from the coil drips into a tray beneath it. We clear standing water, clean out slime and check the outlet is draining.
Why deal with it now?
A clean unit feeds cleaner air into the ductwork, so the whole system stays cleaner for longer. It also means the next inspection has less to find. Somewhere as small as Hurst Green, losing a kitchen or building to a fault is felt by everyone who uses it.
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. The price is fixed before work begins.
Why choose Duct Doctor in Hurst Green
- One number for every site across the South East and London
- CHAS, SafeContractor and ISO 9001
- Trading since 2009
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Take a look at how cleaning jobs are priced and our accreditations.