Hampshire · Air handling unit cleaning
Andover AHU cleaning
Air handling unit cleaning for businesses, landlords and public buildings in Andover. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Rooms that smell stuffy when the system runs
- Dust built up on fan impellers
- Units needing a clean before a new tenant or handover
AHU cleaning in Andover
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. Typical jobs include dirty filters cutting the airflow and debris and leaves in the fresh air intake, across supply and extract fans, heating and cooling coils and dampers and louvres.
For a school, surgery or office in Andover, cleaning is planned around opening hours: evenings, weekends or school holidays.
The sign-off is always in writing: a written report, dated and illustrated with pictures, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Where
- Andover (SP10, SP11)
- Region
- Hampshire
- Records
- Written report with photos
- Quotes
- Fixed quote, usually within a working day
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
How it works
Before we leave, we walk the area with whoever is on site. Anything we couldn’t reach or that needs attention is pointed out there and then, and the same goes into the written report. The visit takes anything from half a day for one small unit to several shifts for a plant room full of them. Three things shape a visit in Andover: when you are closed, where we can park and how we get to the system.
- 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.
- The unit is closed up and handed back, with a report to follow.
Preparing for the visit
- Mention any sign-in, permit or induction we need
- Make sure someone can let us in and lock up afterwards
- Clear the space around the work
How to get a quote
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, before we start.
Advice
Towns and villages near Andover
Also in Andover
What your team can do, and what needs us
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
Staff cleaning and specialist work are not the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Looking after it afterwards
Looking after the system between visits is straightforward, and it helps at the next visit:
- Check the drain tray is emptying during routine visits
- File each AHU report in the maintenance log
- Report stiff or damaged access doors
- Change filters on schedule and log each change
The ducts served by the unit may need attention too. Cleaning the unit and ducts together gives the best result, and we can survey both.
Change or clean filters on time. Once filters clog, dirt starts getting past them.
What we are called out for in Andover
Planned maintenance often covers belts, motors and filters but not cleaning. So a unit can be well maintained and still dirty.
Most sites get in touch after spotting one of these:
- Odours coming through the supply air
- Units that have only ever had filter changes
- Blocked condensate drains and slimy trays
- Dirty filters cutting the airflow
Workplaces around Andover station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts.
Questions to ask before booking
- Whether a written report and photos are included
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether the quote shows VAT
- Whether the work can be done while the site is closed
Your questions about AHU cleaning in Andover
Do you work at weekends in Andover?
Yes, nights and weekends are routine for us. That way a site in Andover does not have to lose a day’s trading. When you call us on 0345 646 2711 or drop us a line, mention when the site is quiet.
Do you clean school ventilation in Andover in the holidays?
Yes, and it’s the easiest time to do it. Food Standards Agency records list about 15 schools, colleges and universities with registered kitchens within about a mile and a half of Andover. You can ring 0345 646 2711, or send details by email with the dates the site is empty.
What information do you need?
Some pictures and a quick description of the system, with the address and opening hours. If we need more, we’ll ask.
Which accreditations do you hold?
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.
Which parts of an air handling unit do you clean?
We clean the filter section, heating and cooling coils, drain trays, fan and internal casing. What happens to the filters is agreed when we quote.
How often should an air handling unit be cleaned?
TR19® Air takes a risk-based approach, so it depends on inspection rather than a fixed interval. Each report suggests when the unit should next be looked at.
How much notice should we give?
It depends on the time you need and how big the job is. Mention your preferred dates with your enquiry, and if it’s an emergency, call us any time.
Can you set up regular visits?
Yes. Send details of the systems and how they’re used and we’ll propose a schedule with a fixed quote.
AHU cleaning in Andover: local notes
There are about 15 schools, colleges and universities, about 24 care, childcare and hospital premises and about 4 hotels and guest houses on the FSA’s food hygiene register in Andover 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. The nearest hospital to Andover is Andover War Memorial Hospital, about 0.7 miles north-west. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Andover War Memorial Hospital, about 0.7 miles north-west, is the nearest hospital to Andover, and healthcare sites of every size need their supply air kept clean. If you manage a school such as St John the Baptist Catholic Primary School, ventilation cleaning is best booked for the holidays.
Andover is about 17 miles west of Basingstoke, in Hampshire. Whatever kind of site you run in Andover, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so the site keeps running. Andover is one of 683 towns, villages and districts in Hampshire we cover for commercial clients. There’s also a page for Southampton, roughly 21 miles from Andover.
Postcode districts we cover here for AHU cleaning: SP10 and SP11. Whether your site is on High Street, Goddard Square and London Road or a nearby road, our technicians can take on the work. Andover sits on or near the A303 and A342, which makes travel easy for AHU cleaning. Neighbouring places we cover for AHU cleaning include Picket Twenty (1 mile east), East Anton (1 mile north-east), Knights Enham (1 mile north), Finkley Down (2 miles north-east) and Picket Piece (2 miles east). Larger places within reach include Winchester (13 miles south-east), Romsey (15 miles south), Hyde (12 miles south-east), Tidworth (8 miles west), Weeke (12 miles south-east) and Kempshott (15 miles east). Being one of Hampshire’s larger places, Andover has commercial sites of every size, all within our area for AHU cleaning.
Near you in Andover
Locally, jobs take us to businesses close to The Angel Inn, Winton Community Academy and Winton Community Academy, among other places. For rail, the closest station is Andover station, about 0.5 miles west of the centre. Nearby you’ll also find Andover War Memorial Hospital (0.7 miles north-west) and Andover Museum (under half a mile east). Not far away are Anton Lakes and Mill Lake.
Fixed quotes for AHU cleaning in Andover
Sites vary more than people expect. What affects the quote:
- Parking and loading at the site
- When the work can happen, such as evenings, overnight or weekends
- Whether we need access equipment or extra panels
- Site requirements such as sign-in and permits
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.
Helping us quote
Photos let us diagnose from a distance. The most useful are:
- The site address and the type of premises
- When the site is open and when it’s quiet
- The paperwork from the last visit, if you have it
- How we’d reach plant on a roof or in a plant room
If you need AHU cleaning in Andover, ring 0345 646 2711 or email us. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. We typically send a fixed quote within one working day.
What the work involves, part by part
Rooftop and plant room units
Many AHUs sit on roofs or in plant rooms with limited access. We plan safe access as part of the survey, before we quote.
Fans and fan sections
Before the fan is touched, the unit is shut down and made safe with your site team.
Why act early in Andover
Stuffy rooms and stale smells in a building in Andover can sometimes be traced back to the AHU. Cleaning it deals with the cause rather than the symptom. Whatever the system, dirt and wear only get worse.
What you pay reflects the actual work. That’s why every job is surveyed first, and why the quote is fixed before work begins.
Why Andover businesses choose us
- One contact for all your sites in London and the South East
- Out-of-hours work and a 24/7 emergency line
- Fully insured
- We diagnose before we treat
See what affects the cost and our accreditations.