West Sussex · Air handling unit cleaning
AHU Cleaning in Three Bridges
AHU cleaning across Three Bridges and nearby, booked around your opening hours and signed off in writing with photos.
- Air handling units never cleaned inside
- Dirty coils holding back the airflow
- Drain trays holding standing water
AHU cleaning for kitchens and businesses in Three Bridges
An AHU clean is a thorough examination and treatment of the unit. Every section is opened, cleaned and photographed, so you can see the unit’s condition for yourself. The work covers supply and extract fans, filter sections and heating and cooling coils, and people most often call us about odours coming through the supply air and condensate trays that won’t empty.
Visits to a place like Three Bridges are fitted around opening hours. The method does not change: inspect first, clean, then record what was done.
The report is your system’s health record: dated, with photos, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal, ready for your insurer.
- Location
- Three Bridges (RH10)
- Region
- West Sussex
- Reporting
- Report and pictures after the visit
- Quote
- A fixed price before any work starts
- When we work
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
FAQs for Three Bridges
Can you clean school ventilation in Three Bridges during the holidays?
Yes. Half-terms and the summer break are the natural time for school work. With about 20 schools and colleges on the FSA’s register within roughly a mile and a half of Three Bridges, it pays to plan holiday dates ahead. Just call us on 0345 646 2711 or drop us a line with your term dates and we will plan around them.
Do you work at weekends in Three Bridges?
Yes. We work evenings, overnight and at weekends. It means the site in Three Bridges keeps running as normal. When you call us on 0345 646 2711 or send us an email, mention when the site is quiet.
Are you fully insured?
Yes, we’re fully insured. We also hold CHAS and SafeContractor for clients who vet their contractors.
What do you do with what you remove?
Waste is contained during the work and removed when we leave, from grease and debris to used cleaning water. We don’t leave it behind.
Do you offer emergency callouts?
Yes, 24/7. Our office is open from 8am to 6pm on weekdays, with the emergency line covering every other hour.
Are you accredited?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
Do you survey before quoting?
Yes, always. Diagnosis comes before treatment: the survey shows what needs doing and what access we need, and the quote is based on that.
Can we book visits on a schedule?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, to suit the system and how it’s used.
Staff cleaning versus specialist work
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We will take a look and give you a fixed quote.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
What AHU cleaning can’t fix
Some problems need a different service or another trade:
- Breakdowns that need a mechanical engineer
- A system that’s undersized for the building
- The supply and extract ducts, quoted separately
If you are not sure, just give us a ring on 0345 646 2711 or use the quote form and we will give you a straight answer before booking.
Where we work
- Internal panels
- Filter sections
- Heating and cooling coils
- Dampers and louvres
- Supply and extract fans
- Drain trays
Also near Three Bridges
Also in Three Bridges
The process
The visit has three parts: set-up, the treatment itself and the sign-off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with photos. The middle part takes longest, and that takes anything from half a day for one small unit to several shifts for a plant room full of them. Visits to a place like Three Bridges are planned ahead, so we arrive with what the survey says the job needs.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Before we arrive
- Clear the space around the work
- Let us know about permits to work or site inductions
- Tell us the best time to work, such as after service or at a weekend
Ask for a quote
Want a quote for AHU cleaning? Please call 0345 646 2711, or send details by email with a few details about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
Related advice
AHU cleaning in Three Bridges: local notes
There are about 20 schools, colleges and universities, about 21 hospitals, care homes and childcare premises and about 7 hotels and guest houses on the FSA’s food hygiene register in Three Bridges and the streets around it, up to about 1.5 miles out. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. For Three Bridges, the closest hospital is Crawley Hospital, roughly 1.6 miles west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. Three Bridges, about 27 miles from central London, is within our usual area. Evening, overnight and weekend visits are all possible.
Crawley Hospital, about 1.6 miles west, is the nearest hospital to Three Bridges, and healthcare sites of every size need their supply air kept clean. Workplaces around Three Bridges station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts. Classrooms and halls at schools such as Pound Hill Junior School are easiest to work in when pupils are away.
Three Bridges is about 1 mile east of Crawley, in West Sussex. From the centre of Three Bridges to the outskirts, AHU cleaning is available to all kinds of commercial premises, from small sites to large estates. Our West Sussex coverage runs to 371 places, and Three Bridges is one of them. Brighton is in our area too, about 20 miles from Three Bridges.
Every address in RH10 is within our area for AHU cleaning, from the main roads to the quietest streets. Local streets include Ash Road, Mill Road and North Road, and we cover them all for AHU cleaning. Other places close to Three Bridges include Pound Hill (1 mile north-east), Worth (1 mile south-east), Maidenbower (1 mile south-east), Tilgate (1 mile south-west) and Crawley (1 mile west). We also work in nearby towns such as Horsham (8 miles south-west), Haywards Heath (9 miles south), Burgess Hill (11 miles south), East Grinstead (7 miles east), Billingshurst (14 miles south-west) and Bewbush (3 miles west).
What’s near Three Bridges
Around Three Bridges, our work takes us to kitchens and buildings near Hazelwick School, Central Sussex College and Grattons Park and the streets around them. Three Bridges has its own railway station: Three Bridges station. Well-known places in the area include Crawley Hospital (1.6 miles west) and Crawley Museum (1.2 miles west). For a walk, there’s Tilgate Lake.
For landlords and multi-site operators
Whether it’s one building or many, the standard is the same: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We are happy to deal with either side, and the report can go to both.
What affects the cost of AHU cleaning
Every site gets its own quote. This is what makes a difference:
- Working hours and out-of-hours timing
- The condition of the system
- Any permits to work or inductions
- Whether it’s a one-off visit or part of a schedule
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you’re unsure, call 0345 646 2711, or send details by email and we will give you an honest view and a fixed quote.
Helping us quote
Photos and a few facts are often enough to price the work. Send what you can of the following:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Where the site is and what kind of site it is
- Detail shots of panels, filters and grilles
- When the site is open and when it’s quiet
Photos are enough for some jobs, while others need a look on site. 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.
Part by part
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 clean the filter housing.
Rooftop and plant room units
Smaller units in ceiling voids are part of the work as well. The space underneath is protected with sheeting first.
Looking after it afterwards
Good habits slow the build-up between visits. Our tips:
- Report stiff or damaged access doors
- Keep filter changes on time and recorded
- Keep the certificate and photo report with the plant records
- Plan the next inspection before the last report gets filed away
Restart the unit with your site team or maintenance contractor once we’ve finished. Keep an eye on the condensate drain over the next few days to make sure it stays clear.
Do not let leaves, litter or stored materials build up near the fresh air intake. What’s near the intake ends up in the unit.