Hampshire · Air handling unit cleaning
Steep Marsh AHU cleaning
One call covers air handling unit cleaning in Steep Marsh, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Odours coming through the supply air
- Dust built up on fan impellers
- Plant that needs cleaning after a refit
Fixed quotes for AHU cleaning in Steep Marsh
Sites vary more than people expect. The main factors:
- Access, including roofs, risers and ceiling voids
- How many systems or sites are involved
- Site requirements such as sign-in and permits
- When the work can happen, such as evenings, overnight or weekends
Working hours, access and the scale of the site can all change the price. Each of those is built into the quote and give you a fixed price before any work starts.
What we need to know
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- Your opening hours and when the area is out of use
- Where the site is and what kind of site it is
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Close-ups of filters, grilles, hatches or access panels
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and many jobs can be priced from that alone.
About our AHU cleaning in Steep Marsh
An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with pictures, so you can see the unit’s condition for yourself. Common call-outs are for plant that has been serviced but not cleaned and units needing a clean before a new tenant or handover, across internal panels, heating and cooling coils and dampers and louvres.
For a building in or near Steep Marsh, access is agreed in advance and the visit is planned around the journey.
Good records are part of the job. You get a written report with photos after each visit, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.
- Location
- Steep Marsh (GU32)
- Wider area
- Hampshire
- Paperwork
- Written report with pictures
- Quotes
- Fixed quote, typically within a working day
- Working hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Checked
- 30 October 2026
For landlords and multi-site operators
When the building owner and the occupier are different, the lease normally sets out who maintains what. We’re happy to deal with either side, and the report can go to both.
Running several sites is easier with one contractor. We work across London and the South East, so a run of sites can go into one programme and kept to a regular schedule.
Common questions in Steep Marsh
Can ventilation in schools around Steep Marsh be cleaned out of term?
Yes, holiday work suits schools best. Around Steep Marsh, the Food Standards Agency lists about 5 schools and colleges with registered kitchens within a mile and a half or so. Just give us a ring on 0345 646 2711, or email photos with your term dates and we’ll plan around them.
Can you get to a site in Steep Marsh?
Yes, smaller places are covered as well as towns. Photos of the system and directions to the site help us plan the visit.
How long does it take to clean an air handling unit?
Typically the clean takes half a day to a full day per unit, with large plant planned over several shifts. The shutdown is planned to fit, including evenings or weekends.
Do you need to switch the unit off?
Yes, while the clean is under way. We can work evenings, overnight or at weekends so the building isn’t left without ventilation when it’s busy.
What do you do with what you remove?
We contain it and take it with us. Grease, debris and waste water are collected as the work goes on, so it doesn’t spread.
What if parts of the system cannot be reached?
We record them on the report, with pictures where possible, and we explain what access is needed, such as extra access panels in ductwork.
What accreditations do you have?
Our accreditations are CHAS, SafeContractor and ISO 9001, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
What should I send you?
Some photos and a quick description of the system, with the address and opening hours. We’ll ask for anything else we need.
When to call us in Steep Marsh
Planned maintenance often covers belts, motors and filters but not cleaning. That means a unit can tick every service box and still be carrying years of dirt.
Common reasons sites call us are:
- Blocked condensate drains and slimy trays
- Units needing a clean before a new tenant or handover
- Dirty fans and fan housings
- Coils clogged with dust and debris
Hospitals such as Petersfield Community Hospital (about 1.8 miles south) show how much a building can rely on clean ventilation, and smaller healthcare sites near Steep Marsh are no different.
Before booking anyone
- Whether a survey comes first
- Whether a written report and pictures are included
- When the next visit should be, and why
- Whether the price is fixed
What happens on the day
The first job on site is protection: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. The work on site takes half a day to a full day per unit, with large plant planned over several shifts, and we clear up before we go. Photos of the system and how to reach it help us plan a visit to Steep Marsh.
- First the unit is surveyed, from pictures or a visit, and the scope agreed.
- We arrange the shutdown with your staff and sheet the area.
- 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.
- A TR19® certificate and photo report follow the clean.
Getting ready for the visit
- Mention any locked doors, roof access or ceiling voids
- Tell us where we can park and unload
- Make sure someone can let us in and lock up afterwards
Get a fixed quote
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
Related advice
Why it’s worth doing now in Steep Marsh
Dirt left in an air handling unit does not stay in the unit. It’s carried through the ductwork and out of the grilles, so cleaning the ducts without the unit only goes so far. In a place like Steep Marsh, ductwork and fans are easy to forget until something goes wrong.
No two sites are the same, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all play a part.
Why book with us
- We diagnose before we treat
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Fixed quotes, typically within one working day
- Fully insured
In-house cleaning or a specialist?
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
AHU cleaning around Steep Marsh
Going by the FSA’s register, there are about 5 schools, colleges and universities and about 4 care, childcare and hospital premises serving food within 1.5 miles or so of the middle of Steep Marsh. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. Petersfield Community Hospital is the nearest hospital, about 1.8 miles south of Steep Marsh. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. At about 49 miles from central London, Steep Marsh sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site.
School buildings such as Steep Church of England Voluntary Controlled Primary School are typically done in the holidays, so classrooms are not disturbed.
Steep Marsh is about 2 miles north of Petersfield, in Hampshire. Whether your site is in the middle of Steep Marsh or further out, AHU cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Steep Marsh is one of 683 places in Hampshire where we work for commercial clients. Portsmouth is in our area too, about 17 miles from Steep Marsh.
We work across GU32 for AHU cleaning and the streets around it. Neighbouring places we cover for AHU cleaning include Steep (1 mile south), Oakshott (1 mile north), Sheet (1 mile south-east), Petersfield (2 miles south) and Hawkley (2 miles north). Within a short drive, we also cover Havant (12 miles south), Horndean (9 miles south), Alton (8 miles north), Waterlooville (11 miles south), Purbrook (12 miles south) and Bordon (7 miles north-east).
What’s near Steep Marsh
We work in commercial kitchens and buildings around The Cricketers Inn and The Petersfield School, among other places. The nearest railway station is Petersfield station, about 1.7 miles south. A little further out are Bear Museum (2 miles south) and Petersfield Community Hospital (1.8 miles south). Open spaces near Steep Marsh include Wheatham Hill and Liss Riverside Railway Walk South.
Keeping the system healthy
Results last longer with the right care. Here’s what we suggest:
- 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
- Change filters on schedule and log each change
You receive a TR19® certificate and a photo report after the clean. Keep both with the building’s maintenance records.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air, rather than waiting for a problem.