Portsmouth · Air handling unit cleaning
Air handling unit cleaning in Kingston, Portsmouth
For cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Kingston, one call is all it takes: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Drain trays holding standing water
- Coils clogged with dust and debris
- Plant that has been serviced but not cleaned
What happens on the day
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. It takes half a day to a full day per unit, with large plant planned over several shifts, and we clear up before we go. In a smaller place like Kingston, parking is rarely the issue, but tell us about gates, roof access and opening hours.
- First the unit is surveyed, from pictures or a visit, and the scope agreed.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Drain trays are cleared and cleaned and the outlet checked.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Name a contact who can let us in at the agreed time
- Allow time for equipment near the work to be turned off and cool down
- Tell us where we can park and unload
Ask for a quote
To get a fixed quote, phone us on 0345 646 2711, or email photos with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. You’ll usually have a quote within one working day.
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How we handle AHU cleaning in Kingston
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Clearing and cleaning the tray is central to every AHU clean. The work covers supply and extract fans, dampers and louvres and heating and cooling coils, and common reasons people get in touch are stale or musty smells from the ventilation and leaves and litter drawn into the unit.
In a place like Kingston, air handling units are often tucked into roof spaces or small plant rooms, where they’re easy to forget. Filters, coils and drain trays need attention whatever the size of the unit.
The report is your system’s health record: dated, with photos, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Where
- Kingston (PO1, PO3, PO4)
- Wider area
- Portsmouth
- Reporting
- Photo report after each visit
- Quotes
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Kingston buildings and their air
Food Standards Agency data includes about 40 schools, colleges and universities, about 44 hospitals, care homes and childcare premises and about 7 hotels and guest houses in and around Kingston, up to about a mile and a half out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. The nearest hospital to Kingston is St Mary's Hospital, about within half a mile south-east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
If you run an office near Fratton station, its supply ductwork can gather dust for years before anyone looks inside. St Mary's Hospital, about less than half a mile south-east, is the nearest hospital to Kingston, and healthcare sites of every size need their supply air kept clean.
Kingston is about 1 mile south-east of Portsmouth, in Portsmouth. Kingston gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where needed and a written report with photos. Kingston is one of 19 places in Portsmouth we cover for AHU cleaning.
Work in PO1, PO3 and PO4 follows the same survey, fixed quote and written report as everywhere else we cover. That includes premises on Renny Road, Clive Road and Union Road and the roads around them. Being close to the A288, Kingston is easy for our technicians to reach at any hour. We also cover the places around Kingston: Fratton (1 mile south-west), Baffins (1 mile north-east), Copnor (1 mile north), Portsmouth (1 mile north-west) and Landport (1 mile west). We also work in nearby towns such as Wymering (3 miles north), Paulsgrove (3 miles north), Cosham (3 miles north), Drayton (3 miles north) and Farlington (3 miles north-east).
Landmarks near Kingston
Around Kingston, our work takes us to kitchens and buildings near Langstone Infant School, Graham Arms and Alexandra Park, among other places. The closest station to Kingston is Fratton station, roughly 0.5 miles south-west of the centre. Nearby you’ll also find Charles Dickens Birthplace Museum (1 mile west) and St Mary's Hospital (less than half a mile south-east). Open spaces near Kingston include Milton Locks and Portsdown Hill.
Your questions about AHU cleaning in Kingston
Can ventilation in schools around Kingston be cleaned out of term?
Yes, holiday work suits schools best. Food Standards Agency records list about 40 schools, colleges and universities with registered kitchens within about a mile and a half of Kingston. Booking early in the term gives the best choice of holiday dates.
Can you get to a site in Kingston?
Yes, we work in villages as well as towns, and Kingston is covered. Let us know about access, parking and anything unusual about getting there when you book.
What does TR19 mean?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It is not legislation, but it’s the standard people check against.
Which accreditations do you hold?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We are fully insured and have been trading since 2009.
How much notice should we give?
Book as early as you can for planned work, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
How often should an air handling unit be cleaned?
Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. We recommend a next date in each report.
Does the AHU have to be shut down for cleaning?
Yes. The unit has to be shut down and isolated before it’s opened. We agree the timing with your site team.
How long does an AHU clean take?
Cleaning takes one overnight shift for many single units, with bigger plant phased. Bigger units can be phased, so ring 0345 646 2711, or email photos to talk it through.
What your team can do, and what needs us
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That is our job.
Also in Kingston
How the job changes from site to site
Rooftop and plant room units
Smaller units in ceiling voids are part of the work as well. The space underneath is protected with sheeting first.
Internal casing and panels
Dust settles on every internal surface of the unit. We clean each section from intake to discharge.
Looking after it afterwards
Here’s the after-treatment advice, in brief:
- Don’t store bins or materials near the intake
- Make sure condensate is draining away
- Keep the certificate and photo report with the plant records
- Diary the inspection date recommended in the report
The ducts served by the unit may need attention too. Cleaning the unit and ducts together gives the best result, and we can quote for both.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.
What we’re called out for in Kingston
Dirt in an AHU matters in two ways: air quality, since the unit feeds occupied rooms, and performance, since dirt makes it strain. For the people using the building every day, that’s the air they breathe for hours on end.
It’s time to book a visit if you see:
- Dirty fans and fan housings
- Air handling units never cleaned inside
- Condensate trays that will not empty
- Air handling units due a clean after building work
Classrooms and halls at schools such as Miltoncross Academy are easiest to work in when pupils are away.
What your quote should include
- Whether the figure could change on the day
- Which accreditations they hold, and whether you can check them
- Proof of insurance
- Whether a survey comes first
Landlords, agents and facilities managers
Facilities teams in offices, schools and healthcare sites book us too in Kingston and across Portsmouth. Work can be phased by floor, building or site to keep disruption down.
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.
How we price AHU cleaning
The quote reflects the site in front of us. We consider:
- Access, including roofs, risers and ceiling voids
- How many systems or sites are involved
- The size of the system
- Where the site is and how we reach it
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we will explain each part.
What to send for a quote
When you contact us, it’s useful to have:
- Any previous report or certificate
- A few general shots of the system
- Any symptoms, from odd noises to smells or leaks
- The roof, plant room or outside wall the system runs to
Quotes are quick. Send a few details and pictures, and we typically reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.