Surrey · Air handling unit cleaning
Air handling unit cleaning in Dormansland, Surrey
Professional AHU cleaning in and around Dormansland, timed so the site keeps working and signed off in writing with pictures.
- Condensate trays that won’t empty
- Dirty filters cutting the airflow
- Plant that needs cleaning after a refit
AHU cleaning for kitchens and businesses in Dormansland
All the building’s air passes through the fan, so dust on its blades and housing ends up in the airstream. Fan, housing and the surrounding panels are cleaned as part of the job, once the unit has been shut down and isolated. If you’re dealing with drain trays holding standing water and dirty fans and fan housings, we can help, from filter sections, supply and extract fans and dampers and louvres onwards.
Somewhere as small as Dormansland, ducted ventilation is normally limited to a school, a care home, a surgery or a converted business building, wherever there is one, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
The report is your system’s health record: dated, with photos, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.

- Place
- Dormansland (RH7)
- Wider area
- Surrey
- Records
- Report and photos after the visit
- Quote
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Keeping the system healthy
Think of this as the after-treatment advice, short and simple:
- Report musty smells from the vents straight away
- Keep inspection doors on the unit in good order
- Note any water around the unit or leaks below it
- Keep the certificate and photo report with the plant records
Keep filter changes on schedule between cleans, because good filters protect everything downstream. Record each change in the maintenance log.
Change or clean filters on time. Once filters clog, dirt starts getting past them.
For landlords and multi-site operators
Whether it’s one building or many, the standard is the same: diagnosis, a fixed price, work booked around your hours and a written report with pictures.
For anyone managing more than one site, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.
Towns and villages near Dormansland
What else we do in Dormansland
How the visit works
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. All we need from you is clear access and the right equipment switched off. The visit takes from a few hours for a compact unit to a day or more for a large one. We agree a date with you, plan the drive to Dormansland and turn up when the site is quiet.
- We start with a survey of the unit and a fixed quote for the work.
- We arrange the shutdown with your staff and sheet the area.
- Filters, coils, fan section and casing are cleaned in turn.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after photos.
How to prepare
- Let us know how we reach the system, including roofs, risers and plant rooms
- Clear the space around the work
- Make sure equipment near the work can be switched off and left to cool
Get a fixed quote
For AHU cleaning in Dormansland, give us a ring on 0345 646 2711 or email us. Let us know the site type and the opening hours, plus photos or the previous report if they’re to hand. A fixed quote typically follows within one working day.
Related advice
Common questions in Dormansland
Is Dormansland within the area you cover?
Yes. Dormansland is within the area we cover across London and the South East. Photos of the system and directions to the site help us plan the visit.
Do you work at weekends in Dormansland?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Which kinds of sites do you work on?
Any commercial site with kitchens or ventilation, from a single café to a large school. We work with hotels, schools, care homes, offices, retail and leisure sites.
Are you insured?
Yes, we are fully insured. We also hold CHAS and SafeContractor, for sites that check contractor safety.
Can you quote from pictures?
Often, yes. With good photos, the site type and your last report, we can price many jobs. Where we can’t see enough, we arrange a survey.
Do you offer maintenance contracts?
Yes. Scheduled maintenance plans are part of what we do, set at the interval the system needs. The report from each visit recommends the next date.
Can you fix a faulty AHU?
AHU cleaning is what we offer here, not mechanical repairs. Any faults we notice are recorded for your maintenance team to follow up.
Staff cleaning versus specialist work
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
How we price AHU cleaning
Some jobs are bigger than they look, and some smaller. What affects the quote:
- What state the system is in
- One-off work versus a regular cycle
- When the work can happen, such as evenings, overnight or weekends
- Site requirements such as sign-in and permits
One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. The price is fixed before we start.
Helping us quote
To help us quote quickly, send us:
- Photos showing the whole system and its surroundings
- How we’d reach plant on a roof or in a plant room
- Your opening hours and when the area is out of use
- Detail shots of panels, filters and grilles
Here’s what helps us quote: where the site is, what it is and its opening hours, a few pictures and the last certificate or report, if there is one. Then ring 0345 646 2711, or email photos.
Dormansland buildings and their air
Food Standards Agency records list about 8 hospitals, care homes and childcare premises registered as food businesses across Dormansland and its immediate surroundings (about a mile and a half). Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Dormansland’s nearest hospital, Queen Victoria Hospital, is about 1.9 miles south. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. We cover Dormansland, about 24 miles from central London, as part of our work across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site.
School buildings such as Dormansland Primary School are usually done in the holidays, so classrooms aren’t disturbed. If you run an office near Dormans station, its supply ductwork can gather dust for years before anyone looks inside.
Dormansland is about 3 miles north of East Grinstead, in Surrey. Sites in Dormansland get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. Our Surrey coverage runs to 395 places, and Dormansland is one of them. You can also see our page for London, roughly 24 miles from Dormansland.
Every address in RH7 is covered for AHU cleaning, from the main roads to the quietest streets. If you need AHU cleaning at premises on Dormans High Street, Locks Meadow and Newhache or a nearby road, our technicians can take on the work. If your site is just outside Dormansland, we cover Dormans Park (1 mile south-west), Lingfield (1 mile north-west), Felcourt (1 mile west), Lingfield Common (2 miles north-west) and Hammerwood (2 miles south-east). We also work in nearby towns such as Horley (8 miles west), Redhill (9 miles north-west), Reigate (10 miles north-west), Caterham (10 miles north-west), Dorking (15 miles west) and Oxted (6 miles north).
What’s near Dormansland
In Dormansland, that means kitchens and buildings near The Old House at Home, Centenary Fields and Lingfield College. The closest station to Dormansland is Dormans station, roughly 0.6 miles south-west. A little further out are Haxted Watermill Museum (2.2 miles north-east) and Hever Castle (5 miles east). The countryside around Dormansland includes Hedgecourt Lake.
Honest limits
AHU cleaning cannot fix everything, and we’d rather say so up front. It will not put right:
- A system that’s undersized for the building
- Problems with the unit’s controls or sensors
- Coils that are corroded or leaking and need replacing
If you are not sure, just give us a ring on 0345 646 2711 or drop us a line and we’ll give you a straight answer before you book.
Where we work
- Supply and extract fans
- Filter sections
- Internal panels
- Heating and cooling coils
- Dampers and louvres
- Drain trays
Common problems we fix in Dormansland
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 some travels further into the unit.
It’s time to book a visit if you see:
- Leaves and litter drawn into the unit
- Dirty fans and fan housings
- Drain trays holding standing water
- Dirty coils holding back the airflow
If you run a surgery, dental practice or care home near Dormansland, clean ventilation matters as much to you as to a hospital like Queen Victoria Hospital (about 1.9 miles south).
What your quote should include
- Whether inaccessible sections are listed on the report
- What’s included in the scope, part by part
- Whether the quote is based on a survey or pictures
- Whether the figure could change on the day