Hampshire · Air handling unit cleaning
Air handling unit cleaning in Forestside, Hampshire
Our technicians work in Forestside on cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- Fan sections that haven’t been cleaned in years
- Units that have only ever had filter changes
- Air handling units with blocked filters
How the job changes from site to site
Drain trays
Standing water in a tray sits right where the air passes. We clean it and report anything about the tray or drain that needs fixing.
Rooftop and plant room units
Ceiling-mounted and compact units are cleaned too. The space underneath is protected with sheeting first.
AHU cleaning in Forestside, done properly
Think of an AHU clean as a full check-up for the ventilation. We look inside each section, clean what we find and record it with pictures, so the report shows exactly what was done. The work covers internal panels, heating and cooling coils and filter sections, and common reasons people get in touch are leaves and litter drawn into the unit and stale or musty smells from the ventilation.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, which makes them easy to overlook.
A written report with photos follows each visit, so you have a record of what was done and when. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Place
- Forestside (PO9)
- Region
- Hampshire
- Reporting
- Report and photos after the visit
- Price
- A fixed price before any work starts
- When we work
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026

In-house cleaning or a specialist?
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
Between visits
To keep the system working properly between visits:
- Report musty smells from the vents straight away
- Watch for drips or damp patches near the plant
- Store the TR19 paperwork where auditors can find it
- Plan the next inspection before the last report gets filed away
You receive a TR19® certificate and a photo report after the clean. Keep both with the building’s maintenance records.
Keep the area around the intake clear. Anything around the intake is likely to be drawn in.
How it works
There’s very little for your team to do on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Afterwards, the area is left tidy and the written report follows. Somewhere like Forestside, lanes, gates and parking are worth mentioning in advance.
- We start with a survey of the unit and a fixed quote for the work.
- The unit is shut down with your site team and the area protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- We clean out the drain tray and make sure it drains.
- You get a TR19® certificate and a photo report.
Before we arrive
- Agree a time when the area can be out of use
- Mention any sign-in, permit or induction we need
- Find the previous report, if there is one
How to get a quote
Getting a quote doesn’t take long. Send a few details and pictures, and we normally reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Related advice
Forestside questions
Do you cover Forestside for AHU cleaning?
Yes. Our area runs across London and the South East, Forestside included. A fixed quote typically follows within one working day of the survey details.
Will you come out to Forestside?
Yes. Forestside is within the area we cover across London and the South East. Just mention lanes, gates or anything else about the site when you book.
How long will the unit be out of action?
Cleaning takes from a few hours for a compact unit to a day or more for a large one. Bigger units can be phased, and you can ring 0345 646 2711 or drop us a line to plan it.
How do you protect the area?
Floors and surfaces near the work are sheeted before work begins, and anything we remove is contained. At the end, the area is cleaned down.
Will you repair the fan or motor?
Our AHU work is cleaning rather than mechanical repair. If we spot a fault, we note it in the report for your maintenance team to follow up.
Is a quote from photos possible?
Yes, if we can see what we need. Otherwise, we book a survey at a time that suits the site, then a fixed quote.
What information do you need?
Only a few details: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. Then give us a ring on 0345 646 2711 or drop us a line.
How much does AHU cleaning cost?
It depends on the site, so we quote each one individually. To get one, ring 0345 646 2711, or send details by email with the site type, opening hours and a few pictures.
Also near Forestside
Other services in Forestside
Why it’s worth doing now in Forestside
Dirt left in an air handling unit does not stay in the unit. It’s carried through the ductwork and out of the grilles, which is why the unit and the ducts are best cleaned together. Our emergency line runs 24/7, but a planned visit to Forestside is calmer for everyone.
Putting the work off seldom saves money. Problems in a system tend to grow, and a neglected system can mean more work. If you are unsure, phone us on 0345 646 2711 or send us an email and we’ll give you an honest view and a fixed quote.
Why us?
- A single point of contact for sites across the South East and London
- Full insurance on every job
- In business since 2009
- Survey first, then a fixed quote
See what affects the cost and our accreditations.
AHU cleaning around Forestside
At about 54 miles from central London, Forestside sits well inside the area we cover. Visits are booked around your hours, evenings and weekends included. The nearest hospital to Forestside is Havant War Memorial Hospital, about 5 miles south-west. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
In Forestside, we look inside the system before deciding what needs cleaning. If you run a surgery, dental practice or care home near Forestside, clean ventilation matters as much to you as to a hospital like Havant War Memorial Hospital (about 5 miles south-west).
Forestside is about 4 miles east of Horndean, in Hampshire. If you need AHU cleaning in Forestside, please call us on 0345 646 2711 or send us an email for a fixed quote. Our area covers London and the South East, Forestside included. Our Hampshire coverage runs to 683 places, Forestside among them. You can also see our page for Portsmouth, roughly 10 miles from Forestside.
Postcode districts we cover here for AHU cleaning: PO9. Streets in the area include Lodge Lane and Forestside, all of which we cover for AHU cleaning. We also cover West Marden (1 mile north-east), Chalton (3 miles north-west), Blendworth (3 miles west), Buriton (5 miles north) and Nursted (5 miles north). We also work in nearby towns such as Gosport (13 miles south-west), Havant (5 miles south-west), Fareham (13 miles west), Horndean (4 miles west), Waterlooville (6 miles west) and Petersfield (7 miles north).
Around Forestside
Locally, jobs take us to businesses close to Stansted Park. Forestside’s nearest station is Rowlands Castle station, roughly 2.2 miles south-west of the centre. Nearby you’ll also find Clanfield Earthwork (4 miles north-west) and Havant War Memorial Hospital (5 miles south-west). Open spaces near Forestside include Compton Down and Kingley Vale National Nature Reserve.
What affects the quote in Forestside
Your quote is based on your site. We consider:
- The times the site is available
- Whether we need access equipment or extra panels
- The number of sites or systems
- Travel, parking and unloading
The cost depends on how big the system is, the condition it’s in and access to every part of it. You get a fixed price before we start, so there are no surprises.
Helping us quote
You do not need the technical terms. It helps if you can send:
- The times we could work without disrupting the site
- Any symptoms, from odd noises to smells or leaks
- Detail shots of panels, filters and grilles
- Photos showing the whole system and its surroundings
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
When it’s something else
It’s worth knowing the limits before booking:
- Ductwork downstream of the unit, which is a separate clean
- Problems with the unit’s controls or sensors
- Coils that are corroded or leaking and need replacing
Not sure which it is? You can call us on 0345 646 2711 or email us and we will tell you honestly.
Where we work
- Heating and cooling coils
- Filter sections
- Dampers and louvres
- Drain trays
- Internal panels
- Supply and extract fans