West Sussex · Air handling unit cleaning
AHU Cleaning in Petworth
AHU cleaning in Petworth, surveyed first and signed off with a written report and pictures. Call for a fixed quote.
- Dirty fans and fan housings
- Condensate trays that will not empty
- Air handling units never cleaned inside
About our AHU cleaning in Petworth
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Cleaning and clearing it is a key part of the job. The work covers heating and cooling coils, supply and extract fans and internal panels, and the jobs we see most are leaves and litter drawn into the unit and odours coming through the supply air.
For a building in or near Petworth, 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.
For insurers and inspectors, the record counts. That is why every job is written up in a report with photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Where
- Petworth (GU28)
- Wider area
- West Sussex
- Paperwork
- Written report with photos
- Price
- Fixed quote, normally within a working day
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Looking after it afterwards
Think of this as the after-treatment advice, short and simple:
- Keep filter changes on time and recorded
- Look at the condensate drain whenever the unit is serviced
- Store the TR19 paperwork where auditors can find it
- Note any water around the unit or leaks below it
We recommend when the unit should next be inspected or cleaned, taking into account how dirty it was. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
Also near Petworth
Also in Petworth
AHU cleaning around Petworth
The nearest hospital to Petworth is Midhurst Community Hospital, about 5.5 miles west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. We cover Petworth, about 42 miles from central London, as part of our work across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you.
For schools like Petworth Cof E Primary School, the holidays are the usual time to inspect and clean ventilation.
Petworth is about 12 miles north-east of Chichester, in West Sussex. Whatever kind of site you run in Petworth, AHU cleaning is something we can help with. We can work out of hours so the site keeps running. Our area takes in 371 places across West Sussex, large and small. For sites nearby, see our Guildford page (18 miles or so).
Postcode districts we cover here for AHU cleaning: GU28. If you need AHU cleaning at premises on Station Road, Back Lane and Rosemary Lane or anywhere close by, we can help. With the A272 and A283 close by, Petworth is simple for us to get to at any hour. We also cover Hampers Green (1 mile north), Haslingbourne (1 mile south-east), Tillington (1 mile west), Rotherbridge (1 mile south-west) and Upperton (1 mile north-west). Larger places within reach include Horsham (14 miles north-east), Worthing (14 miles south-east), Bognor Regis (14 miles south), Chichester (12 miles south-west), Littlehampton (12 miles south) and Rustington (13 miles south).
Landmarks near Petworth
Typical jobs here are in premises near The Old Square Tavern. The nearest railway station is Pulborough station, roughly 4.4 miles south-east. Other landmarks nearby include Coates Castle (2.6 miles south) and Coultershaw Heritage Site (1.2 miles south). Green spaces nearby include The Mens.
Common problems we fix in Petworth
Cooling coils create condensation, and that water has to go somewhere. If the drain tray outlet blocks or the tray does not fall properly, water stands in it, and that is where slime and odours start.
Signs it’s time to call us include:
- Debris and leaves in the fresh air intake
- Dirty coils holding back the airflow
- Blocked condensate drains and slimy trays
- Rooms that smell stuffy when the system runs
Healthcare ventilation, from large hospitals like Midhurst Community Hospital (about 5.5 miles west) to small clinics, depends on clean filters, coils and ducts.
What your quote should include
- Whether the work can be done while the site is closed
- Whether a survey comes first
- Whether inaccessible sections are listed on the report
- How they set the interval to the next visit
Staff cleaning versus specialist work
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you can’t see still need a specialist at the right interval.
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
What affects the cost of AHU cleaning
Your quote is based on your site. We take into account:
- How many systems or sites are involved
- A single visit or a regular plan
- Whether we need access equipment or extra panels
- The condition of the system
The price reflects the work, not guesswork. That’s why we survey first, from photos or on site, and the price is agreed before work begins.
Asking for a quote
To help us quote quickly, please include:
- Problems your staff have spotted
- Close-ups of filters, grilles, hatches or access panels
- The postcode and the type of business
- How we’d reach plant on a roof or in a plant room
We don’t publish a price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, give us a ring on 0345 646 2711 or drop us a line.
Managing agents and facilities teams in Petworth
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
We regularly work with managing agents. Tell us the site, the work and the access arrangements and we will come back with a fixed quote.
What we do, step by step
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. The visit itself takes anything from half a day for one small unit to several shifts for a plant room full of them. Somewhere as small as Petworth, the date and timings are agreed with you well before the day.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- 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
- Clear loose items from the work area
- Make sure someone can let us in and lock up afterwards
- Let us know how we reach the system, including roofs, risers and plant rooms
Getting a quote
Want a quote for AHU cleaning? Please give us a ring on 0345 646 2711 or send us an email and tell us about the site. We’ll talk you through the work and send you a fixed quote before you commit to anything.
Advice
Different parts, different methods
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
Coil fins are close together and catch the dust the filters miss. They’re cleaned using methods that won’t bend or flatten the fins.
Common questions in Petworth
Do you offer AHU cleaning in Petworth?
Yes, Petworth is covered. To start, ring 0345 646 2711 or send us an email with a few photos of the system.
Can you come to Petworth after we close?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Just call 0345 646 2711 or send us an email with your opening times and we will plan around them.
What’s included in an AHU clean?
All the internal parts the air touches, from the intake and filters through the coils and fan to the outlet. You get a photo report showing each part before and after.
Do you offer emergency callouts?
Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line, and we will advise on what to do next.
What does TR19 mean?
BESA’s ventilation hygiene specification in two main parts: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It is not legislation, but it’s the standard people check against.
Where does the waste go?
We take it away at the end of the visit. While we work, it’s kept contained to keep the area clean.
How do you protect the area?
We cover floors and nearby surfaces with sheeting before any work starts, and waste is contained as we go. At the end, the area is cleaned down.
Are you fully insured?
Yes, we’re fully insured. We also hold CHAS and SafeContractor for clients who vet their contractors.