West Sussex · Air handling unit cleaning
Air handling unit cleaning in Codmore Hill, West Sussex
AHU cleaning across Codmore Hill and nearby, booked around your opening hours and finished with a written report and pictures.
- Air handling units never cleaned inside
- Drain trays holding standing water
- Dirty fans and fan housings
AHU cleaning in Codmore Hill
Every supply and extract system relies on the air handling unit at its centre: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Anything that collects inside the unit can end up in the rooms it serves, which is why we clean the unit itself, not just the ducts. Typical jobs include air handling units with blocked filters and dirty fans and fan housings, on supply and extract fans, drain trays and filter sections.
Somewhere as small as Codmore Hill, ducted ventilation is normally limited to a school, a care home, a surgery or a converted business building, wherever there is one, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
Nothing is signed off by word of mouth: a written report, dated and illustrated with photos, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. It shows what was done and what, if anything, couldn’t be reached.
- Location
- Codmore Hill (RH20)
- Region
- West Sussex
- Paperwork
- Written report with photos
- Quotes
- Fixed quote, usually within a working day
- When we work
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What the work involves, part by part
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. They’re cleaned using methods that will not bend or flatten the fins.
Fans and fan sections
Every bit of air passes the fan, so a dirty fan sends dirt downstream. We clean the impeller, housing and surrounding section.
How we price AHU cleaning
Your quote is based on your site. We take into account:
- Site requirements such as sign-in and permits
- Whether we need access equipment or extra panels
- How many systems or sites are involved
- Travel, parking and unloading
What you pay depends on the size of the system, the condition it’s in and access to every part of it. We give you a fixed price before any work starts, so there are no surprises.
What to send for a quote
When you contact us, these details help:
- Where the site is and what kind of site it is
- The paperwork from the last visit, if you have it
- Detail shots of panels, filters and grilles
- The roof, plant room or outside wall the system runs to
Need a price for AHU cleaning? Please phone us on 0345 646 2711, or send details by email and tell us about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.
Questions from Codmore Hill
Do you cover smaller places like Codmore Hill?
Yes. Villages and rural sites across the South East are part of our work, Codmore Hill included. Photos of the system and directions to the site help us plan the visit.
Can you come to Codmore Hill after we close?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Just call 0345 646 2711, or email photos with your opening times and we will plan around them.
Do you offer maintenance contracts?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.
What information do you need?
Where the site is, what it is and when it’s open, along with a few photos and any previous report.
How long does an AHU clean take?
Typically the clean takes a single shift for a typical unit, longer for large or heavily soiled ones. The shutdown is planned to fit, including evenings or weekends.
Do you survey before quoting?
Yes. For many sites, photos and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
What’s included in an AHU clean?
We clean the filter section, heating and cooling coils, drain trays, fan and internal casing. Filters are cleaned or changed as agreed in the quote.
What accreditations do you have?
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.
Why deal with it now?
Cleaning a unit while it only has light dust is quick. Leave it for years and dirt bakes onto coils and casings, especially where there’s been moisture. In a small place like Codmore Hill, a system that fails can take a site out of use.
What you pay reflects the actual work. That’s why we survey first, from pictures or on site, and the price is agreed before any work starts.
Why choose Duct Doctor in Codmore Hill
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Fixed quotes, usually within one working day
- Every job surveyed first
- Trading since 2009
See our cost guide and how to check a contractor.
What AHU cleaning looks like in Codmore Hill
At about 40 miles from central London, Codmore Hill sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site.
In Codmore Hill, we look inside the system before deciding what needs cleaning. If you manage a school such as St Mary's Church of England Primary School, ventilation cleaning is best booked for the holidays.
Codmore Hill is about 10 miles south-west of Horsham, in West Sussex. For AHU cleaning in and around Codmore Hill, please ring 0345 646 2711 or drop us a line for a fixed quote. We work across South East England and London, Codmore Hill included. Our West Sussex coverage runs to 371 places, and Codmore Hill is one of them. Brighton is in our area too, around 19 miles away.
We cover every part of the RH20 postcode area for AHU cleaning and the roads nearby. AHU cleaning is available to premises on Masons Way, Hill Farm Lane and Stane Street and nearby roads. Other places close to Codmore Hill include Broomershill (1 mile south-east), North Heath (1 mile north-east), Nutbourne (1 mile south-east), Marehill (1 mile south-east) and Gay Street (2 miles east). We also work in nearby towns such as Horsham (10 miles north-east), Worthing (11 miles south-east), Bognor Regis (15 miles south-west), Chichester (15 miles south-west), Littlehampton (11 miles south) and Shoreham-by-Sea (14 miles south-east).
What’s near Codmore Hill
The closest station to Codmore Hill is Pulborough station, about 1.2 miles south-west. Nearby you’ll also find Coates Castle (4.2 miles west). Open spaces near Codmore Hill include The Mens.
Staff cleaning versus specialist work
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, next to our reports.
Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. That is our job.
How the visit works
When we arrive, we check the system against the survey or the pictures you sent. Anything unexpected is raised with you before we go further. After that, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. If you can send pictures, we can arrive in Codmore Hill knowing what to expect.
- 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 are dealt with as agreed, and the coils, fan and casing cleaned.
- Standing water and slime come out of the tray and the drain is checked.
- A TR19® certificate and photo report follow the clean.
Before we arrive
- Mention any locked doors, roof access or ceiling voids
- Allow time for equipment near the work to be turned off and cool down
- Tell us where we can park and unload
How to get a quote
We don’t publish a price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, give us a ring on 0345 646 2711 or send us an email.
Advice
Also near Codmore Hill
What else we do in Codmore Hill
What a clean will not put right
A few issues sit outside what this work can do:
- Ductwork downstream of the unit, which is a separate clean
- Breakdowns that need a mechanical engineer
- Airflow problems caused by the system’s design
Not sure which it is? You can call 0345 646 2711 or drop us a line and we will tell you honestly before you book.
What we work on in Codmore Hill
- Drain trays
- Filter sections
- Dampers and louvres
- Internal panels
- Heating and cooling coils
- Supply and extract fans
Managing agents and facilities teams in Codmore Hill
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.