West Sussex · Air handling unit cleaning
Tisman's Common AHU cleaning
AHU cleaning for Tisman's Common, with a survey first and a report with pictures at the end. Call for a fixed quote.
- Rooms that smell stuffy when the system runs
- Dirty fans and fan housings
- Air handling units with blocked filters
AHU cleaning in Tisman's Common, done properly
The fan pushes every bit of air in the system, so dust on its blades and housing ends up in the airstream. We clean the fan section along with the rest of the unit, with the unit switched off and made safe first. The work covers drain trays, filter sections and internal panels, and the jobs we see most are units needing a clean before a new tenant or handover and coils clogged with dust and debris.
Work in a small place like Tisman's Common starts with agreeing access and timings.
The paperwork matters as much as the work. You get a written report with pictures after every visit, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Place
- Tisman's Common (RH12)
- Region
- West Sussex
- Reporting
- Report and pictures after the visit
- Quote
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Between visits
To keep the system working properly between visits:
- Stick to the filter change plan
- Diary the inspection date recommended in the report
- Report water on the plant room floor
- Do not store bins or materials near the intake
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. It also notes faults we spotted, such as damaged panels or a blocked drain.
Keep the unit’s doors and panels in working order. If a section is hard to get into, it tends not to get checked.
How the job changes from site to site
Drain trays
The drain tray collects water from the cooling coil. Standing water and slime are removed and the outlet is checked.
Filters
Filters are the first line of defence in the unit. We check them, and clean or change them as agreed in the quote, and the housing around them is cleaned too.
Why act early in Tisman's Common
A clean unit feeds cleaner air into the ductwork, so the ducts and grilles stay cleaner between cleans. That makes the next inspection of a building in Tisman's Common simpler. Equipment tucked in a roof space or outbuilding near Tisman's Common rarely gets looked at unless someone books it.
What you pay reflects the actual work. That’s why we survey first, from pictures or on site, and why the quote is fixed before we start.
What you get with us
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- A single point of contact for sites across the South East and London
- We’re fully insured
- CHAS and SafeContractor accredited, with ISO 9001
See how cleaning jobs are priced or our accreditations and certificates.
AHU cleaning around Tisman's Common
We cover Tisman's Common, about 33 miles from central London, as part of our work across London and the South East. The visit is fixed around your opening hours, not ours.
Classrooms and halls at schools such as Pennthorpe School are easiest to work in when pupils are away.
Tisman's Common is about 7 miles west of Horsham, in West Sussex. Whatever kind of site you run in Tisman's Common, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Our West Sussex coverage runs to 371 places, and Tisman's Common is one of them. You can also see our page for Guildford, roughly 12 miles from Tisman's Common.
Postcode districts we cover here for AHU cleaning: RH12. AHU cleaning is available to premises on Hornshill Lane and Loxwood Road and the roads around them. Close by, we work in Bucks Green (1 mile east), Rudgwick (1 mile east), The Haven (2 miles south-east), Slinfold (3 miles south-east) and Five Oaks (3 miles south-east). Larger places within reach include Crawley (12 miles east), Horsham (7 miles east), Broadfield (12 miles east), Storrington (11 miles south), Billingshurst (5 miles south) and Bewbush (11 miles east).
What’s near Tisman's Common
We work in commercial kitchens and buildings around Rudgwick Primary School and The Queen's Head Public House.
What we do, step by step
There’s very little for your team to do on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. Somewhere as small as Tisman's Common, the date and timings are agreed with you well before the day.
- We agree a shutdown window that suits the building.
- We take before pictures of each section of the unit.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- After photos are taken and the certificate issued.
How to prepare
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Make sure equipment near the work can be switched off and left to cool
- Have your last certificate or report to hand
How to get a quote
Some systems can be priced from photos; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, the quote is fixed before any work is booked.
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Tisman's Common: your questions answered
Can you work in Tisman's Common outside opening hours?
Yes. We work evenings, overnight and at weekends. Your customers, staff or residents in Tisman's Common needn’t be disturbed. Let us know the hours you are closed and we will book within them.
Can you do AHU cleaning in Tisman's Common?
Yes. Our area runs across London and the South East, Tisman's Common included. A fixed quote typically follows within one working day of the survey details.
Do you need to switch the unit off?
Yes. Cleaning needs the unit off and isolated, and we time the work to suit the site.
Do you offer maintenance contracts?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. Each report recommends when the next visit should be.
How long will the unit be out of action?
Expect it to take half a day to a full day per unit, with large plant planned over several shifts. Size, layout and how dirty it is decide the rest, and the quote will give you a clear idea.
What about areas you cannot get to?
They’re listed in the report, never skipped quietly. The report says which parts couldn’t be reached and why, and we can quote to improve the access.
Are you accredited?
Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
What’s included in an AHU clean?
Everything inside the unit that air passes over, from intake to discharge, including coils, fan and drain trays. The photo report shows each section before and after.
What AHU cleaning can’t fix
In fairness, there are a few things this work won’t fix:
- The supply and extract ducts, quoted separately
- Leaking heating or cooling coils
- Problems with the unit’s controls or sensors
If in doubt, call 0345 646 2711 or email us and we will say what we think.
What the work covers
- Supply and extract fans
- Heating and cooling coils
- Dampers and louvres
- Filter sections
- Drain trays
- Internal panels
Common problems we fix in Tisman's Common
Most units live out of sight on roofs, in plant rooms or in ceiling voids and are rarely seen by anyone but maintenance staff. It’s easy for a long time to go by without anyone opening the panels.
Most sites get in touch after spotting one of these:
- Fan sections that haven’t been cleaned in years
- Air handling units due a clean after building work
- Air handling units with blocked filters
- Condensate trays that will not empty
Ventilation work in and around Tisman's Common is risk-based: inspect, then clean what needs it.
What your quote should include
- What hours they’ll be on site
- What happens if part of the system cannot be accessed
- Whether they’re fully insured
- If the quote is a fixed price or an estimate
Landlords, agents and facilities managers
When the building owner and the occupier are different, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. 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.