Hampshire · Air handling unit cleaning
Carter's Clay AHU cleaning
Air handling unit cleaning for commercial sites in Carter's Clay and across Hampshire. CHAS, SafeContractor and ISO 9001, and fully insured.
- Rooms that smell stuffy when the system runs
- Air handling units with blocked filters
- Plant that needs cleaning after a refit
When to call us in Carter's Clay
Whatever surrounds a building in Carter's Clay, the air drawn into its AHU carries dust, pollen and debris. The intake section and first filters take the brunt, and some travels further into the unit.
Any of these means the system needs a check-up:
- Air handling units due a clean after building work
- Stale or musty smells from the ventilation
- Dirty filters cutting the airflow
- Intake sections clogged with outdoor debris
Healthcare ventilation, from large hospitals like Romsey Community Hospital (about 4 miles south-east) to small clinics, depends on clean filters, coils and ducts.
Comparing quotes
- Which accreditations they hold, and whether you can check them
- Whether the whole system is included, or only the parts that are easy to reach
- Whether a survey comes first
- Whether the figure could change on the day
How we handle AHU cleaning in Carter's Clay
Units vary a lot in size, age and layout, from a small ceiling-mounted unit to a large rooftop plant. We look at the unit first, from photos or a site visit, and give you a fixed quote before any cleaning starts. If you are dealing with air handling units never cleaned inside and stale or musty smells from the ventilation, we can help.
For a building in or near Carter's Clay, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
The paperwork matters as much as the work. You get a written report with photos after each visit, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Where
- Carter's Clay (SO51)
- Wider area
- Hampshire
- Records
- Written report with pictures
- Quote
- A fixed price before any work starts
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
What we do, step by step
There are three stages on the day: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with photos. The middle part takes longest, which takes from a few hours for a compact unit to a day or more for a large one. Visits to a village like Carter's Clay are booked in advance, at a time that suits whoever runs the site.
- We survey the unit from pictures or on site and agree what’s included.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- We clean out the drain tray and make sure it drains.
- We close up the unit and send the certificate and before and after pictures.
How to prepare
- Move anything stored near the system
- Let us know about parking and loading
- Have your last certificate or report to hand
Getting a quote
Every quote begins with a look at the system, from your photos 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 any work starts.
Advice
Nearby places to Carter's Clay
Other services in Carter's Clay
AHU cleaning in Carter's Clay: local notes
About 4 miles south-east of Carter's Clay is Romsey Community Hospital, the nearest hospital. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
School buildings such as Awbridge Primary School are usually done in the holidays, so classrooms aren’t disturbed.
Carter's Clay is about 4 miles north-west of Romsey, in Hampshire. Whether your site is in the middle of Carter's Clay or further out, AHU cleaning is available to all kinds of commercial premises, from small sites to large estates. Carter's Clay is one of 683 places in Hampshire where we work for commercial clients. Southampton is in our area too, about 10 miles from Carter's Clay.
Our technicians cover all of SO51 for AHU cleaning and the streets around it. We cover sites on The Banks and Carter's Clay Road and the roads around them. Neighbouring places we cover for AHU cleaning include Lockerley (1 mile north-west), Awbridge (1 mile south-east), Dunbridge (1 mile north-east), Kimbridge (2 miles north-east) and Sherfield English (2 miles south-west). Larger places within reach include Winchester (11 miles east), Eastleigh (10 miles east), Andover (14 miles north), Totton (7 miles south), Chandler's Ford (8 miles east) and Hedge End (13 miles south-east).
Around Carter's Clay
In Carter's Clay, that means kitchens and buildings near Kings Arms Public House and the streets around them. Carter's Clay’s nearest station is Mottisfont & Dunbridge station, roughly 1.2 miles north-east of the centre. Well-known places in the area include Romsey Community Hospital (4 miles south-east) and King Johns House (3.4 miles south-east).
Why it’s worth doing now in Carter's Clay
A clean unit feeds cleaner air into the ductwork, so the ducts and grilles stay cleaner between cleans. It also means the next inspection has less to find. Somewhere as small as Carter's Clay, losing a kitchen or building to a fault is felt by everyone who uses it.
A single site or a whole portfolio, the quote is built the same way: what needs doing, how we get to it and when. The price is fixed before any work starts.
Why book with us
- Every job surveyed first
- Fixed quotes, typically within one working day
- Full insurance on every job
- Accredited under CHAS and SafeContractor, with ISO 9001
See our cost guide and how to check a contractor.
What staff can safely do
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
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, they should report it rather than try to fix it. We can diagnose it and quote.
Keeping the system healthy
To keep the system working properly between visits:
- Note any water around the unit or leaks below it
- Report musty smells from the vents right away
- Look at the condensate drain whenever the unit is serviced
- Change filters on schedule and log each change
You receive a TR19® certificate and a photo report after the clean. Keep both with the building’s maintenance records.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
What AHU cleaning can’t fix
In fairness, there are a few things this work will not fix:
- Faulty motors, drives or bearings
- Ventilation that was badly designed in the first place
- Building management system faults
Not sure which it is? You can call us on 0345 646 2711 or use the quote form and we’ll tell you honestly before booking.
Parts of the system we cover
- Dampers and louvres
- Heating and cooling coils
- Drain trays
- Internal panels
- Filter sections
- Supply and extract fans
FAQs for Carter's Clay
Do you cover smaller places like Carter's Clay?
Yes, Carter's Clay is part of our area, however small the site. A survey first, from pictures or a visit, means we arrive with the right kit.
Do you offer AHU cleaning in Carter's Clay?
Yes. We work across London and the South East, and Carter's Clay is part of that. Get in touch with the details and we will arrange a survey.
Are you accredited?
We hold CHAS, SafeContractor and ISO 9001, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
When should our AHU next be cleaned?
Inspection under TR19® Air decides it. Units in heavy use or in sensitive buildings may need attention more often.
Is there a report after cleaning?
Yes. You receive a certificate and a report showing each section before and after, with any faults we noticed.
What should I send you?
The site address, the type of premises and your opening hours, along with a few pictures and any previous report.
Can you clean without disrupting the building?
Yes. The clean is planned around when the unit can be switched off. Healthcare and care settings are planned with staff.
Different parts, different methods
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through 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.