Portsmouth · Air handling unit cleaning
Air handling unit cleaning in Portsmouth
Professional AHU cleaning in and around Portsmouth, booked around your opening hours and signed off in writing with photos.
- Air handling units with blocked filters
- Plant that needs cleaning after a refit
- Odours coming through the supply air
AHU cleaning in Portsmouth, done properly
Where a building in Portsmouth has had little more than filter changes, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full clean deals with all of it. Typical jobs include fan sections that haven’t been cleaned in years and coils clogged with dust and debris, across drain trays, supply and extract fans and filter sections.
In a big place like Portsmouth, one building can have several AHUs serving different zones. Filters, coils, drain trays and fans all need cleaning, and standing water in a drain tray is a common finding.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Location
- Portsmouth (PO6, PO4, PO1, PO2)
- Wider area
- Portsmouth
- Records
- Photo report after every visit
- Price
- Fixed quote, normally within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Do you need AHU cleaning in Portsmouth?
No filter stops everything. The fine dust that passes the filters lands on the coils, the fan and the internal panels, building up layer by layer.
The symptoms we are asked about most are:
- Condensate trays that will not empty
- Debris and leaves in the fresh air intake
- Air handling units never cleaned inside
- Air handling units with blocked filters
School buildings such as Manor Infant School are normally done in the holidays, so classrooms are not disturbed.
Questions to ask before you book
- If they look at the system before pricing
- How VAT is shown on the quote
- What hours they’ll be on site
- What records you’ll receive afterwards
Part by part
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. Anything like that is recorded with pictures.
Filters
Filters are the first line of defence in the unit. As part of the clean, filters are checked and cleaned or replaced as agreed, and clean the filter housing.
FAQs for Portsmouth
Can you do AHU cleaning in Portsmouth?
Yes, Portsmouth is covered. A fixed quote normally follows within one working day of the survey details.
Can a school’s ventilation in Portsmouth be done out of term time?
Yes. Half-terms and the summer break are the natural time for school work. Food Standards Agency records list about 48 schools, colleges and universities with registered kitchens within about a mile and a half of Portsmouth. Send us your term dates when you give us a ring on 0345 646 2711, or email photos, and we will fit the work in.
How much notice do you need?
For planned work, earlier is better, especially if the next clean or test is due soon. For emergencies, we take calls 24/7.
Do you need to switch the unit off?
Yes. The fan must be stopped and the unit isolated, and we time the work to suit the site.
Do you work evenings or weekends?
Yes, wherever it helps the building. Tell us when the unit can go off and we will work to that.
What do you need from me for a quote?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. After that, simply phone us on 0345 646 2711 or send us an email.
What if parts of the system cannot be reached?
They’re marked on the report. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
What happens to the waste?
We contain it and take it with us. We collect grease, debris and waste water as we go rather than letting it spread.
What AHU cleaning looks like in Portsmouth
Going by the FSA’s register, there are about 48 schools, colleges and universities, about 49 hospitals, care homes and childcare premises and about 16 hotels and guest houses serving food within roughly a mile and a half of the centre of Portsmouth. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Portsmouth’s nearest hospital, Royal Portsmouth Hospital, is about 0.7 miles south-west. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
Healthcare buildings such as Royal Portsmouth Hospital, about 0.7 miles south-west, depend on their ventilation; if you manage a surgery, clinic or care home near Portsmouth, yours matters too. If you manage offices or shops near Fratton station, their ventilation can be inspected and cleaned out of hours.
Portsmouth is in England. Sites in Portsmouth get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. Our area takes in 19 places across Portsmouth, large and small.
Our technicians cover all of the PO6, PO4, PO1 and PO2 postcode area for AHU cleaning and the roads nearby. AHU cleaning is available to premises on Church Road, April Square and Rudmore Square and nearby roads. You’ll find Portsmouth on the A3 and A27, so it’s easy for us to get to for out-of-hours visits. Close by, we work in Rudmore (1 mile north-west), Landport (1 mile south-west), North End (1 mile north), Fratton (1 mile south-east) and Kingston (1 mile south-east). We also work in nearby towns such as Wymering (3 miles north), Paulsgrove (3 miles north), Drayton (3 miles north-east) and Farlington (3 miles north-east).
Around Portsmouth
Locally, jobs take us to businesses close to The Portsmouth Academy, Alexandra Park and St Edmund's Catholic School, among other places. Portsmouth’s nearest station is Fratton station, roughly 0.9 miles south. Nearby you will also find Royal Portsmouth Hospital (0.7 miles south-west) and Charles Dickens Birthplace Museum (less than half a mile west). The countryside around Portsmouth includes Milton Locks and Portsdown Hill.
Aftercare tips
Simple habits between visits make a real difference. Our advice:
- Make sure the unit’s access doors open easily
- Flag stale or damp smells in the supply air
- Diary the inspection date recommended in the report
- Report water on the plant room floor
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Change or clean filters on time. Once filters clog, dirt starts getting past them.
In-house cleaning or a specialist?
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, next to our reports.
Fixed quotes for AHU cleaning in Portsmouth
Sites vary more than people expect. The main factors:
- Site requirements such as sign-in and permits
- How big the system is
- Working hours and out-of-hours timing
- The condition we find in the survey
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.
What to send for a quote
You do not need the technical terms. It helps if you can send:
- A few general shots of the system
- Where the site is and what kind of site it is
- Any access panels or hatches you can see
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and many jobs can be priced from that alone.
More services for Portsmouth
Multi-site and managed buildings
Running several sites is easier with one contractor. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
How it works
The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. The work on site takes anything from half a day for one small unit to several shifts for a plant room full of them, and the area is cleaned down before we leave. For a site in Portsmouth, tell us about parking, loading and how we reach the roof or plant room.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- We take after photos and issue the certificate and report.
Getting ready for the visit
- Clear the space around the work
- Make sure equipment near the work can be switched off and left to cool
- Let us know about permits to work or site inductions
How to get a quote
We don’t publish a price list, because every site is different. We look at your system first, from photos or on a visit, then send a fixed quote. To start, ring 0345 646 2711, or send details by email.