Surrey · Air handling unit cleaning
Air handling unit cleaning in Gatton, Surrey
Air handling unit cleaning for Gatton, with a survey first and a report with pictures at the end. Ask us for a fixed quote.
- Blocked condensate drains and slimy trays
- Fan sections that haven’t been cleaned in years
- Dust-coated heating and cooling coils
How it works
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Anything that needs to be off for the work is switched off and left to cool before work begins, and floors and nearby surfaces are sheeted. On site, it takes one overnight shift for many single units, with bigger plant phased. Somewhere like Gatton, lanes, gates and parking are worth mentioning in advance.
- First the unit is surveyed, from pictures 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.
- Standing water and slime come out of the tray and the drain is checked.
- You get a TR19® certificate and a photo report.
Before we arrive
- Clear loose items from the work area
- Allow time for equipment near the work to be turned off and cool down
- Have your last certificate or report to hand
Ask for a quote
The quickest way to a quote is to send pictures: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Related advice
About our AHU cleaning in Gatton
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. If you’re dealing with leaves and litter drawn into the unit and dirty fans and fan housings, we can help, from drain trays, heating and cooling coils and supply and extract fans 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.
For insurers and inspectors, the record counts. That’s why every job is written up in a report with pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- Gatton (RH2, RH1)
- Region
- Surrey
- Paperwork
- Photo report after every visit
- Quotes
- A fixed quote up front
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
Why deal with it now?
If people in a building in Gatton complain about stuffy or smelly air, the AHU is worth looking at. Cleaning it deals with the cause rather than the symptom. Planning a trip to Gatton ahead is easier for everyone than a rushed one.
The cost depends on how big the system is, the condition it’s in and access to every part of it. You get a fixed price before work begins, so you know where you stand.
Why choose Duct Doctor in Gatton
- We diagnose before we treat
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Accredited under CHAS and SafeContractor, with ISO 9001
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Ventilation in Gatton buildings
Going by the FSA’s register, there are about 3 schools, colleges and universities and about 6 hospitals, care homes and childcare premises serving food within 1.5 miles or so of the middle of Gatton. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. About 3.1 miles south of Gatton is East Surrey Hospital, the nearest hospital. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. At about 17 miles from central London, Gatton sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site.
Healthcare buildings such as East Surrey Hospital, about 3.1 miles south, depend on their ventilation; if you manage a surgery, clinic or care home near Gatton, yours matters too. For schools like Lime Tree Primary School, the holidays are the usual time to inspect and clean ventilation.
Gatton is about 2 miles north of Redhill, in Surrey. If you need AHU cleaning in Gatton, please ring 0345 646 2711, or send details by email for a fixed quote. We work across South East England and London, Gatton included. Our area takes in 395 places across Surrey, large and small. Our London page covers sites nearby (17 miles or so).
All of RH2 and RH1 is within our area for AHU cleaning, from busy streets to back roads. Whether your site is on Rocky Lane and Gatton Bottom or anywhere close by, our technicians can take on the work. Other places close to Gatton include South Merstham (1 mile east), Holmethorpe (1 mile south-east), Merstham (1 mile north-east), Mugswell (1 mile north-west) and Redhill (2 miles south). Further out, we also cover Epsom (7 miles north-west), Horley (6 miles south), Ewell (7 miles north-west), Walton-on-Thames (13 miles north-west), Caterham (4 miles north-east) and Dorking (7 miles west).
Local landmarks in Gatton
In Gatton, that means kitchens and buildings near East Surrey College, Nutfield Marshes and St Bede's School. Gatton’s nearest station is Merstham station, about 1 mile east. A little further out are East Surrey Hospital (3.1 miles south) and The Belfry (1.6 miles south). Open spaces near Gatton include Colley Hill and Mercers Lake.
Aftercare tips
So the system stays in good health:
- Don’t store bins or materials near the intake
- Plan the next inspection before the last report gets filed away
- Stick to the filter change plan
- Look at the condensate drain whenever the unit is serviced
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.
Check drain trays and condensate drains during routine maintenance. A drain that is cleared early never gets to the slime stage.
Multi-site and managed buildings
Multi-site operators often want one contractor and one number. We work across London and the South East, so a run of sites can go into one programme and kept on a regular cycle.
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.
When it’s something else
We won’t sell you work that does not address the problem, so these are the things it will not cover:
- Problems with the unit’s controls or sensors
- Faulty motors, drives or bearings
- Dirty ducts beyond the unit itself
Not sure which it is? You can call us on 0345 646 2711 or send us an email and we’ll tell you honestly before booking.
Where we work
- Drain trays
- Dampers and louvres
- Supply and extract fans
- Filter sections
- Internal panels
- Heating and cooling coils
Fixed quotes for AHU cleaning in Gatton
Before we fix a price, we need to know a few things. We look at:
- Access, including roofs, risers and ceiling voids
- The number of sites or systems
- The scale of the work
- Whether it’s a one-off visit or part of a schedule
Working hours, access and the scale of the site can all change the price. We take each of them into account and give you a fixed price before any work starts.
Asking for a quote
To speed up the quote, send us:
- The postcode and the type of business
- Any previous report or certificate
- Photos showing the whole system and its surroundings
- Your opening hours and when the area is out of use
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, the quote is fixed before any work is booked.
Towns and villages near Gatton
Other services in Gatton
Staff cleaning versus specialist work
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, they should report it rather than try to fix it. We can diagnose it and quote.
FAQs for Gatton
Do you work in villages like Gatton?
Yes, smaller places are covered as well as towns. Let us know about access, parking and anything unusual about getting there when you book.
Do you do school ventilation cleaning in Gatton in the summer holidays?
Yes, holiday work suits schools best. The FSA’s register shows about 3 schools and colleges with food registrations within roughly a mile and a half of Gatton. Send us your term dates when you call 0345 646 2711 or email us, and we’ll fit the work in.
What if parts of the system cannot be reached?
They’re listed in the report, never skipped quietly. You will know exactly which parts weren’t reached and why, and we can quote to improve the access.
Do you do ventilation duct cleaning too?
Yes. We reach the ducts through access panels, with anything inaccessible recorded, and new panels can be fitted.
What types of premises do you cover?
Any site with a kitchen or a ventilation system to look after, from a single café to a large school. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Which parts of an air handling unit do you clean?
Every section that collects dirt: filters, coils, tray, fan and panels. We confirm the scope after looking at the unit.
Can one contract cover all our sites?
Yes. Send the list of sites and the work at each and we’ll quote them together.
Do you have a 24/7 line?
Yes. Our emergency line runs 24/7 for anything that can’t wait until a planned visit. Call us any time and explain what’s happened.