Hampshire · Air handling unit cleaning
Trotton AHU cleaning
AHU cleaning for Trotton, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Blocked condensate drains and slimy trays
- Dust built up on fan impellers
- Dirty filters cutting the airflow
How we handle AHU cleaning in Trotton
Our AHU cleaning covers sites in Trotton and the rest of Hampshire, 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. The work covers drain trays, filter sections and dampers and louvres, and people most often call us about drain trays holding standing water and air handling units with blocked filters.
For a building in or near Trotton, access is agreed in advance and the visit is planned around the journey.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Location
- Trotton (GU31)
- Region
- Hampshire
- Records
- Report and photos after the visit
- Quote
- A fixed price before we start
- Hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Trotton: your questions answered
Can you clean school ventilation in Trotton during the holidays?
Yes, out-of-term visits are normal for schools. With about 2 schools and colleges on the FSA’s register within roughly a mile and a half of Trotton, it pays to plan holiday dates ahead. Tell us your holiday dates and we will book the visit for when the site is empty.
Can the work in Trotton be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. It means the site in Trotton keeps running as normal. Your opening times are the first thing we ask for.
What’s included in an AHU clean?
The main parts are the filters, coils, drain tray, fan and inside of the casing. The survey confirms what’s in your unit before we quote.
Are you insured?
Yes. Duct Doctor is fully insured, and we can share the details when you need them.
Do you offer emergency callouts?
Yes, 24/7. Our office is open from 8am to 6pm on weekdays, with the emergency line covering every other hour.
Are you accredited?
We hold CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
Is a quote from pictures possible?
Yes, where the pictures show enough. If not, a site survey comes first, then a fixed quote.
When should our AHU next be cleaned?
TR19® Air takes a risk-based approach, so it depends on inspection rather than a fixed interval. Each report suggests when the unit should next be looked at.
What AHU cleaning can’t fix
A few issues sit outside what this work can do:
- Ventilation that was badly designed in the first place
- Leaking heating or cooling coils
- Ductwork downstream of the unit, which is a separate clean
If you are not sure, just call 0345 646 2711 or send us an email and we will give you a straight answer before booking.
What we work on in Trotton
- Drain trays
- Filter sections
- Heating and cooling coils
- Supply and extract fans
- Dampers and louvres
- Internal panels
Why deal with it now?
Dirty coils and fans make the unit strain to move the same air. That means more wear on the motor and rooms that feel less fresh, and a planned clean is far less disruptive than a breakdown. In a place like Trotton, ductwork and fans are easy to forget until something goes wrong.
Putting the work off seldom saves money. Problems in a system tend to grow, and a neglected system can mean more work. If you’re not sure what’s needed, phone us on 0345 646 2711, or send details by email for straight advice and a fixed quote.
Why us?
- In business since 2009
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fully insured
- A single point of contact for sites across the South East and London
Nearby places to Trotton
Other services in Trotton
Landlords, agents and facilities managers
Facilities teams in offices, schools and healthcare sites book us too in Trotton and across Hampshire. Larger estates can be phased building by building to keep disruption down.
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we’re happy to quote for all of it.
What we do, step by step
There are three stages on the day: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, while signing off means the written report and photos. Most of the time goes on the work itself, which takes one overnight shift for many single units, with bigger plant phased. Seeing the system in photos first means the trip to Trotton can be planned properly.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- After pictures are taken and the certificate issued.
Before we arrive
- Agree a time when the area can be out of use
- Move anything stored near the system
- Make sure someone can let us in and lock up afterwards
Get a fixed quote
Some systems can be priced from photos; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, the quote is fixed before any work is booked.
Read more
Staff cleaning versus specialist work
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.
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, next to our reports.
What AHU cleaning looks like in Trotton
Trotton, about 46 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site. The nearest hospital to Trotton is Midhurst Community Hospital, about 3 miles east. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Midhurst Community Hospital, about 3 miles east, is the nearest hospital to Trotton, and healthcare sites of every size need their supply air kept clean.
Trotton is about 6 miles east of Petersfield, in Hampshire. We provide AHU cleaning for commercial premises of every kind in Trotton and the rest of Hampshire. We cover 683 places across Hampshire, large and small. You can also see our page for Portsmouth, about 18 miles away.
Here we cover the GU31 postcode area for AHU cleaning. Other places close to Trotton include Dumpford (1 mile south-west), Elsted Marsh (1 mile south), Ingrams Green (1 mile south), Elsted (2 miles south-west) and Didling (2 miles south). We also work in nearby towns such as Havant (12 miles south-west), Horndean (11 miles south-west), Alton (13 miles north-west), Waterlooville (13 miles south-west), Petersfield (6 miles west) and Purbrook (13 miles south-west).
Local landmarks in Trotton
Around Trotton, our work takes us to kitchens and buildings near The Keeper's Arms Public House. Well-known places in the area include Midhurst Community Hospital (3 miles east) and Midhurst Museum (2.9 miles east). Open spaces near Trotton include Iping and Stedham Commons and Wheeler's Down.
What we’re called out for in Trotton
Mechanical servicing keeps a unit running, but it does not always include cleaning the inside. So a unit can be well maintained and still dirty.
Most sites get in touch when they notice one of these:
- Plant that needs cleaning after a refit
- Dust built up on fan impellers
- Intake sections clogged with outdoor debris
- Drain trays holding standing water
Classrooms and halls at schools such as Stedham Primary School are easiest to work in when pupils are away.
Comparing quotes
- What’s included in the scope, part by part
- Whether the quote is based on a survey or photos
- What paperwork you get at the end
- Which accreditations they hold, and whether you can check them
What affects the quote in Trotton
There’s no set price list, because sites vary so much. The quote depends on:
- Travel, parking and unloading
- The times the site is available
- A single visit or a regular plan
- Site rules, permits and inductions
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we’ll go through it with you.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Your opening hours and when the area is out of use
- The paperwork from the last visit, if you have it
- The site address and the type of premises
To help us quote: where the site is, what it is and its opening hours, a few pictures and the last certificate or report, if there is one. Then call 0345 646 2711 or email us.