Hampshire · Air handling unit cleaning
AHU Cleaning in Crowdhill
AHU cleaning for commercial sites in Crowdhill and across Hampshire. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Drain trays holding standing water
- Dust built up on fan impellers
- Leaves and litter drawn into the unit
Different parts, different methods
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. Cleaning keeps it running as intended.
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, before we quote.
AHU cleaning in Crowdhill
Think of an AHU clean as a full check-up for the ventilation. Every section is opened, cleaned and photographed, so the report shows exactly what was done. The work covers filter sections, supply and extract fans and heating and cooling coils, and common reasons people get in touch are filters that are clogged or overdue and air handling units never cleaned inside.
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.
For insurers and inspectors, the record counts. So every job comes with a written report and pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Where
- Crowdhill (SO50)
- Wider area
- Hampshire
- Paperwork
- Photo report after each visit
- Quote
- A fixed price before any work starts
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Checked
- 30 October 2026
What affects the quote in Crowdhill
You will get a fixed price before any work starts. It takes into account:
- Site rules, permits and inductions
- The number of sites or systems
- The scale of the work
- Whether it’s a one-off visit or part of a schedule
No two sites are the same, 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.
What to send for a quote
When you contact us, these details help:
- Detail shots of panels, filters and grilles
- The paperwork from the last visit, if you have it
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Any symptoms, from odd noises to smells or leaks
For AHU cleaning in Crowdhill, call 0345 646 2711 or send us an email. Tell us what kind of premises it is and when it’s open, and send photos or your last report if you can. A fixed quote normally follows within one working day.
Landlords, agents and facilities managers
From a single site to a large estate, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with photos.
We also work for facilities teams across offices, schools and healthcare in Crowdhill and across Hampshire. Larger estates can be phased building by building around the people who use them.
What happens on the day
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Anything that needs to be off for the work is switched off and left to cool first, and the area around the work is covered and protected. The work itself takes from a few hours for a compact unit to a day or more for a large one. Somewhere as small as Crowdhill, the date and timings are agreed with you well before the day.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
How to prepare
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Mention any parking or loading restrictions
- Tell us the best time to work, such as after service or at a weekend
Getting a quote
Quotes are quick. Send a few details and photos, 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.
Related advice
Crowdhill buildings and their air
Going by the FSA’s register, there are about 4 schools, colleges and universities and about 9 hospitals, care homes and childcare premises serving food within about 1.5 miles of central Crowdhill. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. Crowdhill’s nearest hospital, Moorgreen Hospital, is about 3.6 miles south. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Moorgreen Hospital, about 3.6 miles south, is the nearest hospital to Crowdhill, and healthcare sites of every size need their supply air kept clean. Wherever a school like Wyvern Technology College has ducted ventilation, a half-term visit keeps the work out of lesson time.
Crowdhill is about 2 miles north-east of Eastleigh, in Hampshire. Sites in Crowdhill get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. Crowdhill is one of 683 towns, villages and districts in Hampshire we cover for commercial clients. We also work in Southampton, around 6 miles away.
Here we cover the SO50 postcode area for AHU cleaning. Whether your site is on Chestnut Drive and Winchester Road or a nearby road, our technicians can take on the work. If your site is just outside Crowdhill, we cover Fisher's Pond (1 mile north), Nob's Crook (1 mile north-west), Colden Common (1 mile north-west), Lord's Wood (1 mile north-west) and Bishopstoke (1 mile south-west). Larger places within reach include Winchester (6 miles north), Gosport (14 miles south-east), Fareham (10 miles south-east), Horndean (14 miles east), Totton (10 miles south-west) and Chandler's Ford (4 miles west).
Near you in Crowdhill
Locally, jobs take us to businesses close to The King's School Senior and The Fox & Hounds pub and the streets around them. The nearest railway station is Eastleigh station, roughly 2.2 miles west of the centre. Nearby you will also find Eastleigh Museum (2.3 miles west) and Moorgreen Hospital (3.6 miles south). The countryside around Crowdhill includes Twyford Down and Shawford Down.
What AHU cleaning can’t fix
A few issues sit outside what this work can do:
- Airflow problems caused by the system’s design
- Faulty motors, drives or bearings
- Damaged coils beyond cleaning
If in doubt, phone us on 0345 646 2711 or drop us a line and we’ll say what we think.
What we work on in Crowdhill
- Drain trays
- Supply and extract fans
- Filter sections
- Dampers and louvres
- Internal panels
- Heating and cooling coils
Crowdhill: your questions answered
Can ventilation in schools around Crowdhill be cleaned out of term?
Yes, out-of-term visits are normal for schools. The FSA’s register shows about 4 schools and colleges with food registrations within roughly a mile and a half of Crowdhill. Send us your term dates when you call 0345 646 2711 or use the quote form, and we’ll fit the work in.
Do you work in villages like Crowdhill?
Yes. Crowdhill is within the area we cover across London and the South East. A survey first, from pictures or a visit, means we arrive with the right kit.
Can you clean the ducts connected to the AHU?
Yes, supply and extract ducts, grilles and diffusers. We’ll tell you after the survey whether the ducts need it.
Do you repair air handling units?
We clean the unit and flag faults rather than repair them, with the details in the report.
What happens if you cannot reach some of it?
Anything we cannot reach goes on the report, with a note of where it is, and we explain what access is needed, such as extra access panels in ductwork.
What do you need from me for a quote?
Some photos and a quick description of the system, with the address and opening hours. We will ask for anything else we need.
Can we book visits on a schedule?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, depending on what the system needs.
How often should an air handling unit be cleaned?
It depends on the unit, the filters and how the building is used. Regular inspection shows when it’s due, and we will suggest an interval after the first clean.
What your team can do, and what needs 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, alongside our reports.
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.
Why deal with it now?
If people in a building in Crowdhill complain about stuffy or smelly air, the AHU is worth looking at. A clean tackles the source instead of masking it. A planned visit to Crowdhill is easier to arrange than an emergency callout.
What you pay reflects the actual work. That’s why we survey first, from photos or on site, and the price is agreed before work begins.
Why choose Duct Doctor in Crowdhill
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Full insurance on every job
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Ventilation hygiene specialists since 2009