Surrey · Air handling unit cleaning
AHU Cleaning in Cudworth
Need AHU cleaning in Cudworth? We survey first, send you a fixed quote and work around your opening hours, finishing with a written report and photos.
- Filters that are clogged or overdue
- Drain trays holding standing water
- Dirty fans and fan housings
Cudworth: your questions answered
Will you come out to Cudworth?
Yes. Cudworth 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.
Can you clean school ventilation in Cudworth during the holidays?
Yes, holiday work suits schools best. The FSA’s register shows about 2 schools and colleges with food registrations within roughly a mile and a half of Cudworth. You can phone us on 0345 646 2711 or send us an email with the dates the site is empty.
What should I send you?
Only a few details: where it is, what kind of site, when it’s open and the access. Photos and the last report help too. Then phone us on 0345 646 2711 or email us.
How much does AHU cleaning cost in Cudworth?
The cost depends on the size of the system, its condition, access and timing. Ask us for a fixed quote and we will typically reply within one working day.
Will the ventilation be off while you clean?
Yes. The unit has to be shut down and isolated before it’s opened. The shutdown is planned with whoever runs the building.
Are you fully insured?
Yes, fully. CHAS and SafeContractor accreditation sit alongside it, for sites that check contractor safety.
Can you fix a faulty AHU?
Mechanical repairs to the unit are for your HVAC maintenance contractor. We clean the unit and report anything we see that needs attention.
What is TR19?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
AHU cleaning for kitchens and businesses in Cudworth
If the units serving a building in Cudworth have only had filter changes for years, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full clean deals with all of it. The work covers dampers and louvres, heating and cooling coils and drain trays, and people most often call us about debris and leaves in the fresh air intake and dirty fans and fan housings.
In a village or hamlet like Cudworth, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Location
- Cudworth (RH5)
- Wider area
- Surrey
- Reporting
- Photo report after each visit
- Quote
- A fixed price before work begins
- Hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Looking after it afterwards
Aftercare is simple, and it makes the next visit easier:
- Keep inspection doors on the unit in good order
- Book the next check in line with the report
- Flag stale or damp smells in the supply air
- Store the TR19 paperwork where auditors can find it
We recommend when the unit should next be inspected or cleaned, taking into account how dirty it was. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.
Landlords, agents and facilities managers
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.
We work for landlords, managing agents and facilities managers as well as the people running the site. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
What a clean won’t put right
Not every problem is solved by AHU cleaning, and we’d rather say so up front. It does not solve:
- Building management system faults
- A system that’s undersized for the building
- Damaged coils beyond cleaning
If in doubt, ring 0345 646 2711 or drop us a line and we’ll say what we think before you book.
Where we work
- Drain trays
- Filter sections
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
- Internal panels
When to call us in Cudworth
Whatever surrounds a building in Cudworth, the air drawn into its AHU carries dust, pollen and debris. The intake section and first filters take the brunt, and the finer material travels on.
These are the problems we see most often:
- Dirty filters cutting the airflow
- Debris and leaves in the fresh air intake
- Dirty fans and fan housings
- Units that have only ever had filter changes
Langley Green Hospital, about 3.8 miles south-east, is the nearest hospital to Cudworth, and healthcare sites of every size need their supply air kept clean.
What to look for in a quote
- Whether a written report and photos are included
- If they look at the system before pricing
- Whether VAT is included
- Proof of accreditation you can verify
In-house cleaning or a specialist?
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
Towns and villages near Cudworth
What else we do in Cudworth
The process
We start by comparing what we find with the survey or your photos. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes half a day to a full day per unit, with large plant planned over several shifts. For a village or hamlet like Cudworth, 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.
- Before cleaning, each section is photographed.
- 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 pictures and issue the certificate and report.
Preparing for the visit
- Have your last certificate or report to hand
- Make sure someone can let us in and lock up afterwards
- Tell us the best time to work, such as after service or at a weekend
Get a fixed quote
To get a fixed quote, phone us on 0345 646 2711, or send details by email and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You will usually have a quote within one working day.
Related advice
AHU cleaning in Cudworth: local notes
Going by the FSA’s register, there are about 3 hotels and guest houses serving food within roughly a mile and a half of the centre of Cudworth. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Langley Green Hospital is the nearest hospital, about 3.8 miles south-east of Cudworth. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital. At about 24 miles from central London, Cudworth sits well inside the area we cover. A survey and a fixed quote come first, then the visit at a time that suits you.
If you manage a school such as Newdigate CofE Endowed Aided Infant School, ventilation cleaning is best booked for the holidays.
Cudworth is about 4 miles west of Horley, in Surrey. Across the RH5 area, we can carry out AHU cleaning at your premises. Across Surrey, we cover 395 places, Cudworth among them. You can also see our page for Guildford, roughly 15 miles from Cudworth.
Postcode districts we cover here for AHU cleaning: RH5. AHU cleaning is available to premises on Cudworth Park, The Poplars and Burnt Oak Lane and nearby roads. If your site is just outside Cudworth, we cover Newdigate (1 mile west), Russ Hill (1 mile south-east), Parkgate (2 miles north), Charlwood (2 miles east) and Norwood Hill (2 miles north-east). Within a short drive, we also cover Guildford (15 miles north-west), Epsom (12 miles north), Horley (4 miles east), Redhill (7 miles north-east), Ewell (13 miles north) and Reigate (6 miles north-east).
Landmarks near Cudworth
We work in commercial kitchens and buildings around Newdigate Brickworks. The nearest railway station is Holmwood station, roughly 2.8 miles north-west of the centre. Well-known places in the area include Langley Green Hospital (3.8 miles south-east). Green spaces nearby include Vann Lake and Leith Hill.
What affects the quote in Cudworth
Your quote is based on your site. We take into account:
- Site rules, permits and inductions
- A single visit or a regular plan
- The number of sites or systems
- Parking and loading at the site
Combining work into one visit or one programme often makes better use of the time. Mention every system or site you need covered, and you’ll get one fixed quote.
What to send for a quote
When you call or email, it’s useful to have:
- How we’d reach plant on a roof or in a plant room
- Any access panels or hatches you can see
- Problems your staff have spotted
- Your opening hours and when the area is out of use
Need a price for AHU cleaning? Please phone us on 0345 646 2711, or send details by email with a few details about the site. We will explain what we’d do and send a fixed quote before you commit to anything.