West Sussex · Air handling unit cleaning
Air handling unit cleaning in Alfold Bars, West Sussex
Need AHU cleaning in Alfold Bars? We diagnose first, fix the price and book the work around your hours, finishing with a written report and photos.
- Plant that needs cleaning after a refit
- Plant that has been serviced but not cleaned
- Odours coming through the supply air
How we handle AHU cleaning in Alfold Bars
Our AHU cleans for sites in Alfold Bars cover the parts that collect dirt: the filter section, heating and cooling coils, drain trays, fan and casing. Every clean comes with a TR19® certificate and before and after pictures in a report. Common call-outs are for fan sections that haven’t been cleaned in years and air handling units never cleaned inside, on dampers and louvres, internal panels and supply and extract fans.
Work in a small place like Alfold Bars starts with agreeing access and timings, and the ventilation is inspected, cleaned and recorded the same as anywhere.
It’s worth checking any contractor’s accreditations. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Location
- Alfold Bars (RH14)
- Region
- West Sussex
- Paperwork
- Photo report after each visit
- Quote
- A fixed price before any work starts
- Hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Landlords, agents and facilities managers
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
When the building owner and the occupier are different, the lease normally sets out who maintains what. We are happy to deal with either side and send the paperwork to whoever needs it.
Also near Alfold Bars
More services for Alfold Bars
When to call us in Alfold Bars
Whatever surrounds a building in Alfold Bars, the air drawn into its AHU carries dust, pollen and debris. Most of it lands at the intake and the first stage of filters, and some travels further into the unit.
What we’re most often called out for:
- Stale or musty smells from the ventilation
- Fan sections that haven’t been cleaned in years
- Filters that are clogged or overdue
- Leaves and litter drawn into the unit
If you manage a school such as Loxwood Primary School, ventilation cleaning is best booked for the holidays.
What to look for in a quote
- What’s included in the scope, part by part
- When they can work, and whether that is outside your opening hours
- What paperwork you get at the end
- What happens if part of the system cannot be accessed
Alfold Bars buildings and their air
There are about 3 schools, colleges and universities on the FSA’s food hygiene register within roughly a mile and a half of the centre of Alfold Bars. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. About 34 miles out from central London, Alfold Bars is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you.
Ventilation work in and around Alfold Bars is risk-based: inspect, then clean what needs it.
Alfold Bars is about 9 miles west of Horsham, in West Sussex. Across the RH14 area, we can take on AHU cleaning. Our West Sussex coverage runs to 371 places, and Alfold Bars is one of them. You can also see our page for Guildford, roughly 11 miles from Alfold Bars.
AHU cleaning in RH14 is surveyed, quoted and booked the same way as anywhere else. That includes premises on Pigbush Lane and Oakhurst Lane and nearby roads. Other places close to Alfold Bars include Alfold (1 mile north), Loxwood (1 mile south), Ifold (2 miles south-west), Plaistow (2 miles south-west) and Durfold Wood (3 miles west). Further out, we also cover Crawley (14 miles east), Horsham (9 miles east), Broadfield (14 miles east), Storrington (12 miles south), Billingshurst (6 miles south-east) and Bewbush (13 miles east).
Around Alfold Bars
Around Alfold Bars, our work takes us to kitchens and buildings near The Crown pub and Fir Tree Copse. For a walk, there’s Shillinglee Lake.
What happens on the day
Protection comes first: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. The work on site takes from a few hours for a compact unit to a day or more for a large one, and the area is cleaned down before we leave. For a village or hamlet like Alfold Bars, tell us about narrow lanes, gates and parking when you book.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
How to prepare
- Mention any parking or loading restrictions
- Allow time for equipment near the work to be turned off and cool down
- Let us know how we reach the system, including roofs, risers and plant rooms
How to get a quote
For a fixed quote, give us a ring 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. Photos and the last report, if you have one, make the quote quicker. You will usually have a quote within one working day.
Read more
What your team can do, and what needs us
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that is where we come in.
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they don’t reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
What affects the cost of AHU cleaning
Every site gets its own quote. These are the things that affect it:
- The condition of the system
- The scale of the work
- Any permits to work or inductions
- When the work can happen, such as evenings, overnight or weekends
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we’ll go through it with you.
Helping us quote
Before you ask for a quote, gather:
- Your opening hours and when the area is out of use
- Wide pictures of the system and the area around it
- The postcode and the type of business
- The paperwork from the last visit, if you have it
Quoting starts with a diagnosis, from your pictures and details or, where that isn’t enough, a survey on site. After that, you get a fixed price for the work so you know the cost before work begins.
Your questions about AHU cleaning in Alfold Bars
Can you work in Alfold Bars outside opening hours?
Yes, out-of-hours work is a big part of what we do. The site is handed back ready to open. Just call 0345 646 2711 or send us an email with your opening times and we’ll plan around them.
Can you get to a site in Alfold Bars?
Yes. Alfold Bars 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.
How long will the unit be out of action?
Typically the clean takes from a few hours for a compact unit to a day or more for a large one. We plan the shutdown around that, including evenings or weekends.
Do you offer emergency callouts?
Yes, 24/7. Our office is open from 8am to 6pm on weekdays, and the emergency line covers the rest.
Can you clean the ducts connected to the AHU?
Yes. Ductwork is cleaned through access panels, and any sections we cannot reach are noted in the report, and new panels can be fitted.
Which accreditations do you hold?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
How do you keep the site clean during the work?
Floors and surfaces near the work are sheeted before work begins, and anything we remove is contained. Before we leave, we tidy up and clean down.
Will you repair the fan or motor?
AHU cleaning is what we offer here, not mechanical repairs. If we spot a fault, we note it in the report for your maintenance team to follow up.
How the job changes from site to site
Heating and cooling coils
Cooling coils stay damp in use, so dirt on them can turn sticky. We clean the coil and the tray beneath it together.
Fans and fan sections
Dust on a fan impeller adds weight and wear. Cleaning keeps it running as intended.
Aftercare tips
A little care between visits keeps the system in better shape. Our advice:
- Clear leaves and litter away from the intake
- Stick to the filter change plan
- Check the drain tray is emptying during routine visits
- Keep inspection doors on the unit in good order
The report shows each section of the unit before and after, and note any part we couldn’t get to. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.