Hampshire · Air handling unit cleaning
Trotton Marsh AHU cleaning
Specialist AHU cleaning for Trotton Marsh: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.
- Dirty coils holding back the airflow
- Dirty fans and fan housings
- Blocked condensate drains and slimy trays
AHU cleaning in Trotton Marsh, done properly
Our AHU cleans for sites in Trotton Marsh cover the parts that collect dirt: filters, coils, drain trays, fans and the internal panels. You get a TR19® certificate and a photo report showing the unit before and after. We are often asked to deal with air handling units due a clean after building work and fan sections that haven’t been cleaned in years, on dampers and louvres, filter sections and drain trays.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
Accreditations are easy to claim and worth checking. We are 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
- Trotton Marsh (GU30, GU31)
- Wider area
- Hampshire
- Paperwork
- Photo report after every visit
- Quotes
- A fixed price before work begins
- When we work
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Common problems we fix in Trotton Marsh
Wherever there’s a cooling coil, there’s condensate. If the drain tray outlet blocks or the tray doesn’t fall properly, water stands in it, and slime and smells soon follow.
What we’re most often called out for:
- Fan sections that haven’t been cleaned in years
- Coils clogged with dust and debris
- Intake sections clogged with outdoor debris
- Plant that has been serviced but not cleaned
Hospitals such as Midhurst Community Hospital (about 3.8 miles south-east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Trotton Marsh are no different.
Questions to ask before you book
- Exactly which parts of the system are covered
- Whether they recommend a next date
- Whether the price is fixed
- How areas they cannot reach will be recorded
Also in Trotton Marsh
What staff can safely do
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We’ll take a look and give you a fixed quote.
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. That is our job.
AHU cleaning around Trotton Marsh
Trotton Marsh’s nearest hospital, Midhurst Community Hospital, is about 3.8 miles south-east. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. Trotton Marsh is about 45 miles from central London, well within the area we cover across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you.
In Trotton Marsh, we look inside the system before deciding what needs cleaning.
Trotton Marsh is about 5 miles east of Petersfield, in Hampshire. Every kind of commercial site in Trotton Marsh, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so the site keeps running. Our Hampshire coverage runs to 683 places, and Trotton Marsh is one of them. For sites nearby, see our Portsmouth page, about 19 miles away.
AHU cleaning in GU30 and GU31 is surveyed, quoted and booked the same way as anywhere else. We also cover the places around Trotton Marsh: Borden (1 mile west), Milland (1 mile north), Chithurst (1 mile south-east), Rogate (2 miles south-west) and Rake (3 miles north-west). We also work in nearby towns such as Havant (13 miles south-west), Horndean (12 miles south-west), Alton (11 miles north-west), Waterlooville (13 miles south-west), Petersfield (5 miles west) and Purbrook (14 miles south-west).
What’s near Trotton Marsh
The nearest railway station is Liphook station, roughly 3.7 miles north of the centre. Nearby you’ll also find Midhurst Museum (4 miles south-east) and Midhurst Community Hospital (3.8 miles south-east). The countryside around Trotton Marsh includes Iping and Stedham Commons and Wheeler's Down.
What happens on the day
Your staff do not need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Before we leave, the area is tidied and the paperwork follows. A quick note on how to find the site and where to park makes a visit to Trotton Marsh run smoothly.
- 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.
- Standing water and slime come out of the tray and the drain is checked.
- You get a TR19® certificate and a photo report.
Getting ready for the visit
- Tell us about site rules, permits or sign-in
- Let us know about parking and loading
- Dig out any earlier paperwork for the system
How to get a quote
Need a price for AHU cleaning? Please call 0345 646 2711 or email us with a few details about the site. We’ll talk you through the work and send you a fixed quote before anything is booked.
Related advice
Between visits
Aftercare is simple, and it helps at the next visit:
- Diary the inspection date recommended in the report
- Make sure the unit’s access doors open easily
- Check the drain tray is emptying during routine visits
- Store the TR19 paperwork where auditors can find it
Restart the unit with your site team or maintenance contractor once we’ve finished. Keep an eye on the condensate drain over the next few days to make sure it stays clear.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air, rather than waiting for a problem.
Honest limits
We’ll always give you a straight diagnosis, so here’s what AHU cleaning will not do:
- Coils that are corroded or leaking and need replacing
- The supply and extract ducts, quoted separately
- Problems with the unit’s controls or sensors
Not sure which it is? You can phone us on 0345 646 2711, or send details by email and we will tell you honestly before booking.
Parts of the system we cover
- Drain trays
- Dampers and louvres
- Filter sections
- Internal panels
- Supply and extract fans
- Heating and cooling coils
What happens if it’s left?
Tenants, auditors and owners may want proof that the air handling plant is kept clean. A TR19® certificate and photo report give you that, for audits, tenants or your own peace of mind. A planned visit to Trotton Marsh is easier to arrange than an emergency callout.
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Why us?
- CHAS, SafeContractor and ISO 9001
- Survey first, then a fixed quote
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Trading since 2009
Take a look at our cost guide or our accreditations and certificates.
Your questions about AHU cleaning in Trotton Marsh
Is AHU cleaning available in Trotton Marsh?
Yes, Trotton Marsh is covered. Just give us a ring on 0345 646 2711 or drop us a line with a few details of the site.
Can you get to a site in Trotton Marsh?
Yes. Trotton Marsh is within the area we cover across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
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.
When should our AHU next be cleaned?
There’s no single answer; it comes down to the building and the unit. Regular inspection shows when it’s due, and we will suggest an interval after the first clean.
What’s TR19?
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.
What happens if you cannot reach some of it?
They’re listed in the report, never skipped quietly. The report says which parts couldn’t be reached and why, and we can quote to improve the access.
Will we get paperwork for the AHU clean?
Yes, a TR19® certificate and a photo report. It includes a recommended date for the next check.
Can you price the work without visiting?
Often, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Where we can’t see enough, we arrange a survey.
Fixed quotes for AHU cleaning in Trotton Marsh
The price is fixed before any work begins. It takes into account:
- The condition we find in the survey
- How easy every part is to reach
- Whether several sites go on one quote
- The size of the system
What you pay depends on the size of the system, what state it’s in and how easy it is to reach. You get a fixed price before work begins, so there are no surprises.
What we need to know
There’s no need for technical detail. Just send:
- Problems your staff have spotted
- The times we could work without disrupting the site
- The roof, plant room or outside wall the system runs to
- Close-ups of filters, grilles, hatches or access panels
If you need AHU cleaning in Trotton Marsh, give us a ring on 0345 646 2711 or use the quote form. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. A fixed quote normally follows within one working day.