West Sussex · Air handling unit cleaning
Air handling unit cleaning in Keynor Estate, West Sussex
Professional AHU cleaning in and around Keynor Estate, timed so the site keeps working and finished with a written report and photos.
- Condensate trays that will not empty
- Dust-coated heating and cooling coils
- Dirty filters cutting the airflow
About our AHU cleaning in Keynor Estate
Our AHU cleans for sites in Keynor Estate cover the parts that collect dirt: the filter section, heating and cooling coils, drain trays, fan and casing. You get a TR19® certificate and a photo report showing the unit before and after. Typical jobs include dust-coated heating and cooling coils and air handling units with blocked filters, across drain trays, heating and cooling coils and filter sections.
Work in a small place like Keynor Estate starts with agreeing access and timings, and the ventilation is inspected, cleaned and recorded the same as anywhere.
We have been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Place
- Keynor Estate (PO20)
- Region
- West Sussex
- Paperwork
- Written report with pictures
- Price
- A fixed price before any work starts
- When we work
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Multi-site and managed buildings
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
Keynor Estate: your questions answered
Can a school’s ventilation in Keynor Estate be done out of term time?
Yes, holiday work suits schools best. Food Standards Agency records list about 2 schools, colleges and universities with registered kitchens within about a mile and a half of Keynor Estate. Send us your term dates when you phone us on 0345 646 2711 or use the quote form, and we will fit the work in.
Do you work in villages like Keynor Estate?
Yes, Keynor Estate is part of our area, however small the site. Just mention lanes, gates or anything else about the site when you book.
Can you set up regular visits?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.
Which kinds of sites do you work on?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, as well as food production and leisure sites.
How much notice should we give?
Earlier is better, particularly for night and weekend visits. Quotes normally come back within one working day, and emergencies are covered by our 24/7 line.
Do you work evenings or weekends?
Yes. The clean is planned around when the unit can be switched off. Healthcare and care settings are planned with staff.
Do you offer emergency callouts?
Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we’ll advise on what to do next.
Are you insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
The process
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the work 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 Keynor Estate and turn up when the site is quiet.
- 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.
- Filters, coils, fan section and casing are cleaned in turn.
- We clean out the drain tray and make sure it drains.
- We close up the unit and send the certificate and before and after photos.
Getting ready for the visit
- Make sure equipment near the work can be switched off and left to cool
- Find the previous report, if there is one
- Clear the space around the work
Get a fixed quote
Every quote begins with a look at the system, from your photos and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work so you know the cost before we start.
Advice
Aftercare tips
How long the results last depends on use and care. Here’s what we suggest:
- Keep inspection doors on the unit in good order
- Note any water around the unit or leaks below it
- Store the TR19 paperwork where auditors can find it
- Flag stale or damp smells in the supply air
The report shows each section of the unit before and after, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Change or clean filters on time. Once filters clog, dirt starts getting past them.
Towns and villages near Keynor Estate
What else we do in Keynor Estate
Part by part
Filters
Filters are the first line of defence in the unit. As part of the clean, filters are checked and cleaned or replaced as agreed, and clean the filter housing.
Rooftop and plant room units
Smaller units in ceiling voids are part of the work as well. We protect the area below before opening them.
What staff can safely do
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That’s our job.
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
What happens if it’s left?
Tenants, auditors and owners may want proof that the air handling plant is kept clean. Our certificate and photo report give you clear evidence, ready to show anyone who asks. It’s worth booking a check, because nobody sees inside a duct day to day.
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you’re unsure, phone us on 0345 646 2711 or use the quote form for straight advice and a fixed quote.
Why book with us
- Full insurance on every job
- Out-of-hours work and a 24/7 emergency line
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Trading since 2009
Do you need AHU cleaning in Keynor Estate?
Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. Months can pass without anyone looking inside.
These are the problems we see most often:
- Dirty filters cutting the airflow
- Blocked condensate drains and slimy trays
- Dirty coils holding back the airflow
- Plant that needs cleaning after a refit
For schools like Sidlesham Primary School, the holidays are the usual time to inspect and clean ventilation.
What your quote should include
- Whether the whole system is included, or only the parts that are easy to reach
- How areas they cannot reach will be recorded
- Whether the figure could change on the day
- Which accreditations they hold, and whether you can check them
AHU cleaning in Keynor Estate: local notes
The nearest hospital to Keynor Estate is St Richard's Hospital, about 5.2 miles north. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. Keynor Estate is about 59 miles from central London, well within the area we cover across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site.
Healthcare ventilation, from large hospitals like St Richard's Hospital (about 5.2 miles north) to small clinics, depends on clean filters, coils and ducts.
Keynor Estate is about 2 miles north of Selsey, in West Sussex. Anywhere in PO20, we can take on AHU cleaning. Our West Sussex coverage runs to 371 places, Keynor Estate among them. Portsmouth is in our area too, about 13 miles from Keynor Estate.
Postcode districts we cover here for AHU cleaning: PO20. Whether your site is on Chalk Lane and Cow Lane or anywhere close by, our technicians can take on the work. We also cover Sidlesham (1 mile north-east), Street End (1 mile north), Church Norton (2 miles south-east), Sidlesham Common (2 miles north) and Pagham (2 miles east). Further out, we also cover Bognor Regis (5 miles east), Chichester (5 miles north), Littlehampton (12 miles east), Emsworth (8 miles north-west), Rustington (13 miles east) and Angmering (14 miles east).
Near you in Keynor Estate
In Keynor Estate, that means kitchens and buildings near The Academy. The nearest railway station is Chichester station, roughly 4.4 miles north of the centre. Nearby you will also find Selsey Lifeboat Museum (2.9 miles south) and St Richard's Hospital (5.2 miles north).