Surrey · Air handling unit cleaning
AHU Cleaning in Hamsey Green
AHU cleaning in Hamsey Green, surveyed first and signed off with a written report and pictures. Ask us for a fixed quote.
- Condensate trays that will not empty
- Debris and leaves in the fresh air intake
- Units that have only ever had filter changes
AHU cleaning in Hamsey Green, done properly
Coils are where a lot of the dirt ends up. Dirt on the fins holds back air and makes the unit work harder to do the same job. Coils are cleaned carefully, with methods chosen so the fins are not flattened. The work covers dampers and louvres, filter sections and heating and cooling coils, and people most often call us about fan sections that haven’t been cleaned in years and units needing a clean before a new tenant or handover.
In a village or hamlet like Hamsey Green, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we are fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Location
- Hamsey Green (CR6, CR2)
- Wider area
- Surrey
- Paperwork
- Photo report after each visit
- Quote
- A fixed quote up front
- Working hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
When it’s something else
AHU cleaning can’t fix everything, and we’d rather say so up front. It does not solve:
- Ventilation that was badly designed in the first place
- Building management system faults
- Damaged coils beyond cleaning
If in doubt, ring 0345 646 2711 or drop us a line and we will say what we think before you book.
Parts of the system we cover
- Supply and extract fans
- Filter sections
- Dampers and louvres
- Drain trays
- Heating and cooling coils
- Internal panels
AHU cleaning in Hamsey Green: local notes
Food Standards Agency records list about 9 schools, colleges and universities and about 14 caring premises (care homes, nurseries and hospitals) registered as food businesses within roughly a mile and a half of the centre of Hamsey Green. Busy, occupied buildings like these are where clean supply air matters most. Hamsey Green is about 13 miles from central London, well within the area we cover across London and the South East. The visit is fixed around your opening hours, not ours. Hamsey Green’s nearest hospital, Warlingham Park Hospital, is about 1.4 miles east. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
Warlingham Park Hospital, about 1.4 miles east, is the nearest hospital to Hamsey Green, and healthcare sites of every size need their supply air kept clean. Wherever a school like Hamsey Green Primary has ducted ventilation, a half-term visit keeps the work out of lesson time.
Hamsey Green is about 1 mile north of Warlingham, in Surrey. Wherever you are in the CR6 postcode area, we can take on AHU cleaning. We cover 395 places across Surrey, from busy centres to quieter spots. There’s also a page for London, about 13 miles away.
All of CR6 and CR2 is covered for AHU cleaning, from the main roads to the quietest streets. AHU cleaning is available to premises on Clyde Avenue, Crewe's Lane and Princes Avenue and the roads around them. We also cover the places around Hamsey Green: Warlingham (1 mile south), Whyteleafe (1 mile south-west), Chelsham (1 mile east), Sanderstead (1 mile north-west) and Farleigh (1 mile east). Further out, we also cover Epsom (9 miles west), Horley (11 miles south-west), Redhill (7 miles south-west), Ewell (9 miles west), Reigate (8 miles south-west) and Caterham (3 miles south-west).
Near you in Hamsey Green
In Hamsey Green, that means kitchens and buildings near Blanchman's Farm, The White Lion Public House and Warlingham School. For rail, the closest station is Upper Warlingham station, about 1 mile south-west. Other landmarks nearby include Warlingham Park Hospital (1.4 miles east) and East Surrey Museum (2.6 miles south). The countryside around Hamsey Green includes South London Downs National Nature Reserve and Nore Hill.
Part by part
Filters
Dirty filters cut airflow and let dirt slip past their frames. We clean the frames and rails so the filters sit tight.
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through the fins.
What affects the cost of AHU cleaning
There’s no set price list, because sites vary so much. What we look at:
- Where the site is and how we reach it
- Whether it’s a one-off visit or part of a schedule
- The times the site is available
- How big the system is
We don’t list prices on the website, because the cost depends on the site in front of us. Call for a fixed quote, and we’ll talk you through it.
What we need to know
Many jobs can be priced from photos and some basics. Useful things to send:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- When the site is open and when it’s quiet
- Wide pictures of the system and the area around it
- The site address and the type of premises
Want a quote for AHU cleaning? Please give us a ring on 0345 646 2711 or use the quote form with a few details about the site. We will talk you through the work and give you a fixed quote before you commit to anything.
Staff cleaning versus specialist work
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
Managing agents and facilities teams in Hamsey Green
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. 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.
Facilities teams in offices, schools and healthcare sites book us too across Surrey. Work can be phased by floor, building or site around the people who use them.
Also near Hamsey Green
What else we do in Hamsey Green
Between visits
Here’s the after-treatment advice, in brief:
- Make sure the unit’s access doors open easily
- Do not store bins or materials near the intake
- Stick to the filter change plan
- Note any water around the unit or leaks below it
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.
Make sure access doors and panels on the unit open easily. Sections that are awkward to open are the ones that get skipped.
What happens on the day
When we arrive, we check the system against the survey or the pictures you sent. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. Visits to a village like Hamsey Green are booked in advance, at a time that suits whoever runs the site.
- We start with a survey of the unit and a fixed quote for the work.
- 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.
- Drain trays are cleared and cleaned and the outlet checked.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Mention any locked doors, roof access or ceiling voids
- Let us know about parking and loading
- Tell us about site rules, permits or sign-in
Ask for a quote
Every quote begins with a look at the system, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price, before we start.
Related advice
Common questions in Hamsey Green
Do you do school ventilation cleaning in Hamsey Green in the summer holidays?
Yes, and it’s the easiest time to do it. With about 9 schools and colleges on the FSA’s register within roughly a mile and a half of Hamsey Green, it pays to plan holiday dates ahead. Booking early in the term gives the best choice of holiday dates.
Can you get to a site in Hamsey Green?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
Will you repair the fan or motor?
Mechanical repairs to the unit are for your HVAC maintenance contractor. We clean the unit and report anything we see that needs attention.
Do you give a certificate after the clean?
Yes. You get a TR19® certificate plus before and after photos. They’re worth keeping with the plant records.
Do you work evenings or weekends?
Yes. We time the work to fit the building’s hours. In hospitals and care homes, we agree timings with the site team.
Do you look at the system first?
Yes. We always survey first, either from photos and details you send or on a site visit. Then you get a fixed quote.
Will the ventilation be off while you clean?
Yes. We can’t clean a running unit, so it’s switched off and made safe first. The shutdown is planned with whoever runs the building.
How long does it take to clean an air handling unit?
Cleaning takes one overnight shift for many single units, with bigger plant phased. Large plant can be split over several shifts, and you can give us a ring on 0345 646 2711 or use the quote form to plan it.