Portsmouth · Air handling unit cleaning
Air handling unit cleaning in North End, Portsmouth
Professional AHU cleaning in and around North End, booked around your opening hours and finished with a written report and photos.
- Filters that are clogged or overdue
- Condensate trays that will not empty
- Stale or musty smells from the ventilation
What we are called out for in North End
Most units live out of sight on roofs, in plant rooms or in ceiling voids and are rarely seen by anyone but maintenance staff. Months can pass without anyone looking inside.
Clients normally contact us after spotting something like this:
- Condensate trays that won’t empty
- Rooms that smell stuffy when the system runs
- Dirty filters cutting the airflow
- Air handling units due a clean after building work
Wherever a school like Corpus Christi Catholic Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
What your quote should include
- Proof of accreditation you can verify
- What happens if part of the system cannot be accessed
- Whether the price is fixed
- Whether a survey comes first
AHU cleaning in North End
Our AHU cleaning covers sites in North End and the rest of Portsmouth, in buildings such as offices, schools, healthcare sites and shops. The work is timed around when the system can be switched off, including evenings, nights and weekends. We’re often asked to deal with coils clogged with dust and debris and leaves and litter drawn into the unit, across drain trays, heating and cooling coils and internal panels.
For a building near North End, the visit is planned around how it’s used, and the journey is planned ahead. The work is the same as in any town: inspect, clean, record.
It’s worth checking any contractor’s accreditations. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.

- Location
- North End (PO2, PO1)
- Wider area
- Portsmouth
- Records
- Report and photos after the visit
- Quotes
- Fixed quote, usually within a working day
- Hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
More services for North End
How the job changes from site to site
Filters
Filter condition tells you a lot about the rest of the unit. We photograph them for the report.
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 so the quote reflects it.
When something else is needed
Before you book, it helps to know what’s not included:
- Breakdowns that need a mechanical engineer
- A system that’s undersized for the building
- Dirty ducts beyond the unit itself
Not sure which it is? You can ring 0345 646 2711, or send details by email and we will tell you honestly before you book.
Parts of the system we cover
- Drain trays
- Supply and extract fans
- Dampers and louvres
- Heating and cooling coils
- Internal panels
- Filter sections
AHU cleaning around North End
There are about 32 schools, colleges and universities, about 33 care, childcare and hospital premises and about 6 hotels and guest houses on the FSA’s food hygiene register in and around North End, up to about a mile and a half out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. About 1.2 miles south of North End is Royal Portsmouth Hospital, the nearest hospital. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Healthcare buildings such as Royal Portsmouth Hospital, about 1.2 miles south, depend on their ventilation; if you manage a surgery, clinic or care home near North End, yours matters too.
North End is about 1 mile north of Portsmouth, in Portsmouth. Wherever you are in the PO2 postcode area, we cover AHU cleaning for commercial sites. Across Portsmouth, we cover 19 places, and North End is one of them.
Every address in PO2 and PO1 is covered for AHU cleaning, from the main roads to the quietest streets. We cover sites on Knox Road, Croft Road and Kirby Road and the roads around them. North End is on the A2047, so it’s easy for us to get to for AHU cleaning. Neighbouring places we cover for AHU cleaning include Rudmore (1 mile south-west), Tipner (1 mile west), Portsmouth (1 mile south), Copnor (1 mile south-east) and Hilsea (1 mile north-east).
Near you in North End
In North End, that means kitchens and buildings near Mayfield School, Alexandra Park and St Edmund's Catholic School, among other places. The nearest railway station is Hilsea station, roughly 1.2 miles north-east of the centre. Nearby you’ll also find Charles Dickens Birthplace Museum (0.8 miles south-west) and Portchester Castle (2.1 miles north-west). Green spaces nearby include Portsdown Hill and Milton Locks.
What your team can do, and what needs us
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. Leave those to us.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, they should report it rather than try to fix it. We can diagnose it and quote.
For landlords and multi-site operators
Records are where multi-site compliance often slips. Each visit ends with a dated report and pictures, ready to show insurers, fire officers or EHOs.
If you look after several sites, we can plan visits across the whole estate and price them together. Every building has its own written report, so records stay tidy.
What affects the cost of AHU cleaning
Before we fix a price, we need to know a few things. We look at:
- Working hours and out-of-hours timing
- How easy every part is to reach
- What state the system is in
- The size of the system
A single site or a whole portfolio, we price it on the same basis: the work involved, the access and the timing. You will have a fixed price before any work starts.
Helping us quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- Close-ups of filters, grilles, hatches or access panels
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The site address and the type of premises
- Wide photos of the system and the area around it
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 we can price many jobs without a visit.
The process
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. The visit takes one overnight shift for many single units, with bigger plant phased. For a site near North End, the work is booked around your opening hours, evenings and weekends included.
- 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 parking or loading restrictions
- Let us know how we reach the system, including roofs, risers and plant rooms
- Have your last certificate or report to hand
Ask for a quote
To help us quote: where the site is, what it is and its opening hours, photos of the system and any previous report or certificate. Then phone us on 0345 646 2711 or send us an email.
Advice
Questions from North End
Do you work in villages like North End?
Yes, smaller places are covered as well as towns. A survey first, from pictures or a visit, means we arrive with the right kit.
Can you work in North End outside opening hours?
Yes, out-of-hours work is a big part of what we do. The work in North End can fit around your hours. Your opening times are the first thing we ask for.
What if parts of the system can’t be reached?
They’re marked on the report. In ductwork, new access panels are often the answer, and we can fit those.
What does AHU cleaning cost?
Every site is different, so each gets its own fixed quote. For a quote, call 0345 646 2711, or send details by email and tell us about the site and its opening hours.
What do you do with what you remove?
Waste is contained during the work and removed when we leave, including grease, debris and dirty water. We do not leave it behind.
What does TR19 mean?
It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It covers how systems are inspected, cleaned and checked, and it takes a risk-based approach.
How long does it take to clean an air handling unit?
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.
What do you do to protect the area?
Protection goes down first: sheeting over floors, worktops and anything close to the work. The area is left tidy, with our waste taken away.