West Sussex · Air handling unit cleaning
Air handling unit cleaning in Midhurst, West Sussex
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for commercial sites in Midhurst and across West Sussex. CHAS, SafeContractor and ISO 9001, and fully insured.
- Drain trays holding standing water
- Filters that are clogged or overdue
- Dust-coated heating and cooling coils
About our AHU cleaning in Midhurst
Our AHU cleaning covers sites in Midhurst and the rest of West Sussex, in offices, schools, hospitals, care homes and retail. The work is timed around when the system can be switched off, including evenings, nights and weekends. If you are dealing with blocked condensate drains and slimy trays and units needing a clean before a new tenant or handover, we can put it right.
For a building near Midhurst, the visit is planned around how it’s used, and the journey is planned ahead. The work is the same as in any town: inspect, clean, record.
Nothing is signed off by word of mouth: a written report, dated and illustrated with pictures, 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
- Midhurst (GU29)
- Wider area
- West Sussex
- Paperwork
- Photo report after every visit
- Price
- Fixed quote, typically within a working day
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Midhurst: your questions answered
Do you work in villages like Midhurst?
Yes. Midhurst is within the area we cover across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you clean school ventilation in Midhurst during the holidays?
Yes, out-of-term visits are normal for schools. Around Midhurst, the Food Standards Agency lists about 7 schools and colleges with registered kitchens within a mile and a half or so. Just give us a ring on 0345 646 2711 or email us with your term dates and we will plan around them.
Will the ventilation be off while you clean?
Yes, while the clean is under way. We can work evenings, overnight or at weekends to keep disruption down.
Can one contract cover all our sites?
Yes. You deal with one contact for every site in our area, with visits on a regular schedule.
Will you repair the fan or motor?
Mechanical repairs to the unit are for your HVAC maintenance contractor. We’ll flag anything we notice during the clean.
What do you do to protect the area?
We cover floors and nearby surfaces with sheeting before we start, and anything we remove is contained. Before we leave, we tidy up and clean down.
What should I send you?
A short description and a few photos plus the address and your hours. We’ll ask for anything else we need.
Do you clean the ductwork as well?
Yes, the ductwork, grilles and diffusers the unit serves. The survey shows whether the ducts need cleaning now.
Why act early in Midhurst
Stuffy rooms and stale smells in a building in Midhurst can sometimes be traced back to the AHU. Cleaning it deals with the cause rather than the symptom. Systems on quieter sites still build up dirt and wear, just more slowly.
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 not sure what’s needed, phone us on 0345 646 2711 or send us an email for straight advice and a fixed quote.
Why choose Duct Doctor in Midhurst
- We are fully insured
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Accredited under CHAS and SafeContractor, with ISO 9001
- One contact for all your sites in London and the South East
Take a look at our cost guide and our accreditations.
Midhurst buildings and their air
Going by the FSA’s register, there are about 7 schools, colleges and universities and about 5 hospitals, care homes and childcare premises serving food within about 1.5 miles of central Midhurst. Busy, occupied buildings like these are where clean supply air matters most. About 45 miles out from central London, Midhurst is part of the South East area we work across. The visit is fixed around your opening hours, not ours. Midhurst’s nearest hospital, Midhurst Community Hospital, is about 0.8 miles north-east. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
Healthcare buildings such as Midhurst Community Hospital, about 0.8 miles north-east, depend on their ventilation; if you manage a surgery, clinic or care home near Midhurst, yours matters too.
Midhurst is about 8 miles east of Petersfield, in West Sussex. For AHU cleaning in and around Midhurst, please phone us on 0345 646 2711, or email photos for a fixed quote. Our area covers London and the South East, including Midhurst. We cover 371 places across West Sussex, large and small. You can also see our page for Portsmouth, roughly 19 miles from Midhurst.
All of GU29 is covered for AHU cleaning, from the main roads to the quietest streets. If you need AHU cleaning at premises on Station Road, Edinburgh Square and Pretoria Avenue or anywhere close by, we can help. Main roads around Midhurst include the A272 and A286, which makes travel easy for evening and night visits. Other places close to Midhurst include Bepton Common (1 mile south-west), West Lavington (1 mile east), Cocking Causeway (1 mile south), Easebourne (1 mile north-east) and Woolbeding (1 mile north-west). Further out, we also cover Bognor Regis (14 miles south), Chichester (10 miles south), Littlehampton (15 miles south-east), Emsworth (12 miles south-west), Storrington (14 miles east) and Billingshurst (13 miles east).
Landmarks near Midhurst
Locally, jobs take us to businesses close to The Egmont Public House, Midhurst Rother College and St Margaret's Convent. Nearby you’ll also find Midhurst Community Hospital (0.8 miles north-east) and Lodsworth Castle (3.2 miles east). For a walk, there’s Levin Down and Iping and Stedham Commons.
Signs you need AHU cleaning in Midhurst
Planned maintenance often covers belts, motors and filters but not cleaning. That means a unit can tick every service box and still be carrying years of dirt.
What we’re most often called out for:
- Plant that needs cleaning after a refit
- Air handling units never cleaned inside
- Filters that are clogged or overdue
- Drain trays holding standing water
If you manage a school such as Midhurst CofE Primary School, ventilation cleaning is best booked for the holidays.
What your quote should include
- What happens if part of the system can’t be accessed
- Proof of insurance
- What records you’ll receive afterwards
- How VAT is shown on the quote
Nearby places to Midhurst
More services for Midhurst
How it works
A visit follows the same order every time: sheeting and protection first, isolate whatever needs isolating, do the work, clear away and hand over the paperwork. The visit itself takes one overnight shift for many single units, with bigger plant phased. Evenings, weekends or a closed day all work for a site in a place like Midhurst.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Find the previous report, if there is one
- Clear the space around the work
- Mention any sign-in, permit or induction we need
Get a fixed quote
To help us quote: where the site is, what it is and its opening hours, pictures of the system and any previous report or certificate. Then call 0345 646 2711 or drop us a line.
Advice
When something else is needed
Not every problem is solved by AHU cleaning, and we will tell you before work begins. It won’t put right:
- Problems with the unit’s controls or sensors
- Ductwork downstream of the unit, which is a separate clean
- Breakdowns that need a mechanical engineer
Not sure which it is? You can ring 0345 646 2711 or drop us a line and we’ll tell you honestly.
What we work on in Midhurst
- Internal panels
- Supply and extract fans
- Drain trays
- Heating and cooling coils
- Dampers and louvres
- Filter sections
Aftercare tips
Simple habits between visits make a real difference. Our advice:
- Keep filter changes on time and recorded
- Do not ignore odours coming through the grilles
- Make sure the unit’s access doors open easily
- Do not store bins or materials near the intake
Once the clean is done, we send a TR19® certificate and a report with before and after photos. They belong in the plant or maintenance log.
Keep the unit’s doors and panels in working order. Sections that are awkward to open are the ones that get skipped.
How the job changes from site to site
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. We clean the intake and first stage of filters along with the rest.
Drain trays
Drain trays can rust and leak over time. Their condition goes into the report with photos so you can decide on any repairs.
What staff can safely do
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. Leave those to us.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.