Surrey · Air handling unit cleaning
AHU Cleaning in Penny Pot
For AHU cleaning in Penny Pot, one call is all it takes, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Dust built up on fan impellers
- Rooms that smell stuffy when the system runs
- Air handling units with blocked filters
What AHU cleaning looks like in Penny Pot
Food Standards Agency records list about 6 schools, colleges and universities and about 11 caring premises (care homes, nurseries and hospitals) registered as food businesses within 1.5 miles or so of the middle of Penny Pot. Busy, occupied buildings like these are where clean supply air matters most. The nearest hospital to Penny Pot is Brookwood Hospital, about 1.8 miles south. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. Penny Pot, about 25 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site.
School buildings such as Holy Trinity CofE Primary School are normally done in the holidays, so classrooms are not disturbed.
Penny Pot is about 3 miles north-west of Woking, in Surrey. Wherever you are in the GU24 postcode area, we can carry out AHU cleaning at your premises. We cover 395 places across Surrey, large and small. We also work in Guildford, around 7 miles away.
Every address in GU24 is covered for AHU cleaning, from the main roads to the quietest streets. Other places close to Penny Pot include Castle Green (1 mile south-east), West End (1 mile west), Coxhill Green (1 mile north-east), Chobham (1 mile north-east) and Bisley (1 mile south-west). Larger places within reach include Guildford (7 miles south), Woking (3 miles south-east), Camberley (5 miles west), Epsom (15 miles east), Farnham (12 miles south-west) and Egham (7 miles north-east).
Around Penny Pot
We work in commercial kitchens and buildings around Milford Green and Coxhill Green, The Sun Public House and Gordon's School, among other places. The nearest railway station is Brookwood station, roughly 2.7 miles south. Other landmarks nearby include Brookwood Hospital (1.8 miles south) and The Peacocks (3 miles south-east). Not far away are Virginia Water Lake and Gracious Pond.
AHU cleaning for kitchens and businesses in Penny Pot
No two plant rooms are the same, whether it’s a compact unit in a ceiling void or a big unit on the roof. Every job starts with a survey, from pictures or on site, followed by a fixed quote before any cleaning starts. Typical jobs include drain trays holding standing water and units that have only ever had filter changes, across filter sections, dampers and louvres and drain trays.
For a building in or near Penny Pot, 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 paperwork matters as much as the work. Each visit is written up with pictures, listing what was done, anything we couldn’t reach and when the next visit is due. File it in your maintenance log so it’s to hand when an insurer or inspector asks.
- Place
- Penny Pot (GU24)
- Wider area
- Surrey
- Paperwork
- Written report with photos
- Quote
- Fixed quote, usually within a working day
- When we work
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026

Why it’s worth doing now in Penny Pot
When the unit is clean, less dirt reaches the ducts, so the whole system stays cleaner for longer. That makes the next inspection of a building in Penny Pot simpler. A planned visit to Penny Pot is easier to arrange than an emergency callout.
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we’ll explain each part.
Why choose Duct Doctor in Penny Pot
- One number for every site across the South East and London
- In business since 2009
- We are fully insured
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
See what affects the cost and our accreditations.
Places near Penny Pot
Other services in Penny Pot
Signs you need AHU cleaning in Penny Pot
Dirt in an AHU matters in two ways: the unit supplies the air people breathe, and a dirty unit has to work harder. For the people using the building every day, that’s the air they breathe for hours on end.
Most sites get in touch after spotting one of these:
- Plant that has been serviced but not cleaned
- Air handling units due a clean after building work
- Intake sections clogged with outdoor debris
- Coils clogged with dust and debris
Healthcare ventilation, from large hospitals like Brookwood Hospital (about 1.8 miles south) to small clinics, depends on clean filters, coils and ducts.
What to look for in a quote
- Proof of accreditation you can verify
- Whether they’re fully insured
- Whether VAT is included
- What’s included in the scope, part by part
How the job changes from site to site
Drain trays
Condensate from the coil drips into a tray beneath it. Standing water and slime are removed and the outlet is checked.
Filters
Dirty filters cut airflow and let dirt slip past their frames. We clean the frames and rails so the filters sit tight.
What your team can do, and what needs us
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, alongside our reports.
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.
Between visits
So the system stays in good health:
- Keep filter changes on time and recorded
- Flag stale or damp smells in the supply air
- Don’t store bins or materials near the intake
- Make sure the unit’s access doors open easily
Restart the unit with your site team or maintenance contractor once we’ve finished. Check the drain tray is emptying over the first few days to confirm water is draining away.
Do not let leaves, litter or stored materials build up near the fresh air intake. What’s near the intake ends up in the unit.
Penny Pot: your questions answered
Do you work overnight in Penny Pot?
Yes, nights and weekends are routine for us. It means the site in Penny Pot keeps running as normal. Tell us your opening hours when you ask for a quote.
Do you clean school ventilation in Penny Pot in the holidays?
Yes. Half-terms and the summer break are the natural time for school work. Food Standards Agency records list about 6 schools, colleges and universities with registered kitchens within about a mile and a half of Penny Pot. Just ring 0345 646 2711 or email us with your term dates and we will plan around them.
Are you insured?
Yes, we are fully insured. We also hold CHAS and SafeContractor for clients who vet their contractors.
What information do you need?
Where the site is, what it is and when it’s open, along with a few photos and any previous report.
Can you quote from photos?
Usually, yes. Send wide shots, close-ups of any access panels and anything that worries you, and a fixed quote typically follows within one working day. Some sites still need a visit, and we’ll say so.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Our office is open from 8am to 6pm on weekdays, and the emergency line covers the rest.
Does the AHU have to be shut down for cleaning?
Yes, for the time we are working on it. Out-of-hours work is available so the building isn’t left without ventilation when it’s busy.
How much notice do you need?
It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.
Multi-site and managed buildings
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.
Whether it’s one building or many, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with pictures.
The process
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. Rural roads and tight entrances are worth telling us about before a visit to Penny Pot.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Getting ready for the visit
- Name a contact who can let us in at the agreed time
- Plan for cooking equipment or plant to be off before we arrive
- Let us know how we reach the system, including roofs, risers and plant rooms
Getting a quote
For a fixed quote, call us on 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. You’ll normally have a quote within one working day.