Surrey · Air handling unit cleaning
Air handling unit cleaning in Forest Green, Surrey
One call covers cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Forest Green: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Units needing a clean before a new tenant or handover
- Intake sections clogged with outdoor debris
- Dust-coated heating and cooling coils
AHU cleaning in Forest Green, done properly
A cooling coil drips condensate into a tray that should drain away. If the outlet blocks, standing water and slime build up, right in the path of the air going into the building. Cleaning and clearing it is a key part of the job. If you are dealing with dirty filters cutting the airflow and coils clogged with dust and debris, we can put it right, from heating and cooling coils, internal panels and dampers and louvres onwards.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
The sign-off is always in writing: a written report, dated and illustrated with photos, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Where
- Forest Green (RH5)
- Wider area
- Surrey
- Records
- Photo report after each visit
- Quotes
- A fixed quote up front
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Common questions in Forest Green
Do you do school ventilation cleaning in Forest Green in the summer 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 Forest Green. You can give us a ring on 0345 646 2711 or send us an email with the dates the site is empty.
Will you come out to Forest Green?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
What should I send you?
Where the site is, what it is and when it’s open, plus pictures of the system and your last certificate or report if you have one.
How do you keep the site clean during the work?
Protection goes down first: floor sheeting and covers over nearby surfaces and equipment. We tidy up and take our waste away before we leave.
What does AHU cleaning cost?
Size, condition, access and working hours all affect the cost. Call for a fixed quote, normally ready within one working day.
Do you survey before quoting?
Yes, always. Diagnosis comes before treatment: the survey tells us what the system needs and how to reach it and the fixed quote is built on it.
What’s TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.
Can you clean without disrupting the building?
Yes. Evening, overnight and weekend work is all possible, so the building keeps running in the day.
Signs you need AHU cleaning in Forest Green
Cooling coils create condensation, and that water has to go somewhere. If the drain tray outlet blocks or the tray doesn’t fall properly, water stands in it, and slime and smells soon follow.
Most sites get in touch when they notice something like this:
- Odours coming through the supply air
- Plant that has been serviced but not cleaned
- Blocked condensate drains and slimy trays
- Units needing a clean before a new tenant or handover
Around Forest Green, as anywhere, ventilation cleaning begins with an inspection.
What your quote should include
- What records you’ll receive afterwards
- How VAT is shown on the quote
- What’s included in the scope, part by part
- How they set the interval to the next visit
Staff cleaning versus specialist work
Day-to-day cleaning is something your team can do: 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.
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We can diagnose it and quote.
AHU cleaning in Forest Green: local notes
Forest Green, about 27 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site.
In Forest Green, supply and extract ducts are cleaned along with the units that serve them.
Forest Green is about 6 miles south-west of Dorking, in Surrey. For AHU cleaning in and around Forest Green, it’s easy to get a fixed quote: please call 0345 646 2711 or use the quote form. Our area covers London and the South East, Forest Green included. Across Surrey, we cover 395 places, Forest Green among them. We also work in Guildford, around 10 miles away.
All of RH5 is covered for AHU cleaning, from the main roads to the quietest streets. Local streets include Horsham Road and Ockley Road, and we cover them all for AHU cleaning. If your site is just outside Forest Green, we cover Ockley (2 miles south-east), Abinger Bottom (2 miles north), Coldharbour (2 miles north-east), Friday Street (3 miles north) and Abinger Common (3 miles north). We also work in nearby towns such as Guildford (10 miles north-west), Woking (13 miles north-west), Epsom (13 miles north-east), Horley (10 miles east), Redhill (11 miles north-east) and Ewell (15 miles north-east).
Landmarks near Forest Green
Around Forest Green, our work takes us to kitchens and buildings near The Parrot pub and Wallis Wood and the streets around them. The closest station to Forest Green is Ockley station, roughly 2.6 miles east. Well-known places in the area include Abinger Castle (2.9 miles north) and Mesolithic Museum (2.9 miles north). Green spaces nearby include Leith Hill and Vann Lake.
Nearby places to Forest Green
More services for Forest Green
What affects the cost of AHU cleaning
There’s no set price list, because sites vary so much. The quote depends on:
- Travel, parking and unloading
- Access, including roofs, risers and ceiling voids
- One-off work versus a regular cycle
- Site rules, permits and inductions
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 work begins.
Helping us quote
Before you ask for a quote, gather:
- Photos showing the whole system and its surroundings
- When the site is open and when it’s quiet
- Any symptoms, from odd noises to smells or leaks
- How we’d reach plant on a roof or in a plant room
For a fixed quote, call us on 0345 646 2711 or send us an email and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. You’ll normally have a quote within one working day.
Leave it or put it right?
Dirty coils and fans make the unit strain to move the same air. The result is extra wear and a building that doesn’t feel as comfortable, and a planned clean is far less disruptive than a breakdown. Out of sight is the usual reason a rural system goes too long without attention.
The cost depends on how big the system is, what state it’s in and access to every part of it. You get a fixed price before any work starts, so there are no surprises.
Why Forest Green businesses choose us
- A fixed price before any work starts
- Every visit written up, with pictures
- Fully insured
- Survey first, then a fixed quote
See our cost guide and how to check a contractor.
What AHU cleaning can’t fix
Before booking, it helps to know what’s not included:
- Mechanical faults with motors, belts or bearings
- Building management system faults
- Airflow problems caused by the system’s design
If in doubt, ring 0345 646 2711 or drop us a line and we will say what we think.
Where we work
- Supply and extract fans
- Filter sections
- Heating and cooling coils
- Drain trays
- Internal panels
- Dampers and louvres
Landlords, agents and facilities managers
When the building owner and the occupier are different, the lease normally sets out who maintains what. We’re happy to deal with either side and send the paperwork to whoever needs it.
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 pictures.
The process
Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. All told, the work takes from a few hours for a compact unit to a day or more for a large one. Seeing the system in pictures first means the trip to Forest Green can be planned properly.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- The unit is shut down with your site team and the area protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Standing water and slime come out of the tray and the drain is checked.
- A TR19® certificate and photo report follow the clean.
Preparing for the visit
- Name a contact who can let us in at the agreed time
- Tell us where we can park and unload
- Let us know about permits to work or site inductions
How to get a quote
Quotes are quick. Call or email with a few details and you’ll usually have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.