Hampshire · Air handling unit cleaning
Air handling unit cleaning in Smannell, Hampshire
AHU cleaning across Smannell and nearby, booked around your opening hours and signed off in writing with photos.
- Fan sections that haven’t been cleaned in years
- Dirty coils holding back the airflow
- Dirty filters cutting the airflow
Honest limits
We will not sell you work that doesn’t address the problem, so here are the limits:
- Ventilation that was badly designed in the first place
- Controls and BMS settings that run the unit
- Breakdowns that need a mechanical engineer
If you’re not sure, just give us a ring on 0345 646 2711 or email us and we will give you a straight answer before you book.
Parts of the system we cover
- Heating and cooling coils
- Supply and extract fans
- Dampers and louvres
- Filter sections
- Drain trays
- Internal panels
About our AHU cleaning in Smannell
Drain trays under cooling coils are meant to empty. If the outlet blocks, standing water and slime build up, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. The work covers heating and cooling coils, internal panels and filter sections, and the jobs we see most are rooms that smell stuffy when the system runs and fan sections that haven’t been cleaned in years.
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.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Where
- Smannell (SP11)
- Region
- Hampshire
- Reporting
- Report and pictures after the visit
- Quote
- A fixed quote up front
- When we work
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Why deal with it now?
Dirt left in an air handling unit doesn’t 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. Our emergency line runs 24/7, but a planned visit to Smannell is calmer for everyone.
The price reflects the work, not guesswork. That is why we survey first, from pictures or on site, and the price is agreed before we start.
Why us?
- CHAS and SafeContractor accredited, with ISO 9001
- A fixed price before any work starts
- Every job surveyed first
- Evenings, overnight and weekends, plus 24/7 emergency callout
How the job changes from site to site
Internal casing and panels
Access doors and panels are opened in turn and closed properly afterwards before the unit is handed back.
Rooftop and plant room units
Many AHUs sit on roofs or in plant rooms with limited access. Access is planned during the survey so the quote reflects it.
In-house cleaning or a specialist?
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, alongside our reports.
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We will take a look and send you a fixed quote.
Smannell: your questions answered
Do you work overnight in Smannell?
Yes, nights and weekends are routine for us. The site is handed back ready to open. Just call us on 0345 646 2711 or drop us a line with your opening times and we’ll plan around them.
Do you cover smaller places like Smannell?
Yes. Smannell is within the area we cover across London and the South East. A survey first, from photos or a visit, means we arrive with the right kit.
How long will the unit be out of action?
As a guide, it takes from a few hours for a compact unit to a day or more for a large one. We plan the shutdown around that, out of hours if needed.
What do you clean inside the unit?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. Filters are cleaned or changed as agreed in the quote.
Do you have insurance?
Yes, fully. We also hold CHAS and SafeContractor for clients who vet their contractors.
Are you accredited?
We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
Do you work with multi-site operators?
Yes. We work across South East England and London, so sites at different addresses can be planned together on one programme. Each site gets its own report and pictures.
Do you offer maintenance contracts?
Yes. Scheduled maintenance plans are part of what we do, with visits at the interval your system needs. Each report recommends when the next visit should be.
The process
The visit has three parts: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, while signing off means the written report and photos. Most of the time goes on the work itself, and that takes anything from half a day for one small unit to several shifts for a plant room full of them. If you can send pictures, we can arrive in Smannell knowing what to expect.
- We survey the unit from photos or on site and agree what’s included.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- We clean out the drain tray and make sure it drains.
- A TR19® certificate and photo report follow the clean.
Before we arrive
- Make sure someone can let us in and lock up afterwards
- Have your last certificate or report to hand
- Tell us about site rules, permits or sign-in
Getting a quote
To get a fixed quote, phone us on 0345 646 2711 or use the quote form with the site type, your trading hours and a short description of the system. A few photos and your last certificate or report help a lot. You’ll usually have a quote within one working day.
Advice
Looking after it afterwards
Simple habits between visits make a real difference. Our advice:
- Look at the condensate drain whenever the unit is serviced
- Book the next check in line with the report
- Flag stale or damp smells in the supply air
- Report water on the plant room floor
Once the clean is done, we send a TR19® certificate and a report with before and after photos. 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.
Smannell buildings and their air
Going by the FSA’s register, there are about 8 care, childcare and hospital premises serving food in Smannell and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. The nearest hospital to Smannell is Andover War Memorial Hospital, about 2.4 miles south-west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
If you run a surgery, dental practice or care home near Smannell, clean ventilation matters as much to you as to a hospital like Andover War Memorial Hospital (about 2.4 miles south-west). If you manage a school such as Smannell and Enham Church of England (Aided) Primary School, ventilation cleaning is best booked for the holidays.
Smannell is about 2 miles north-east of Andover, in Hampshire. We provide AHU cleaning for businesses, landlords and public buildings in Smannell and the rest of Hampshire. We cover 683 places across Hampshire, from busy centres to quieter spots. Southampton is in our area too, about 22 miles from Smannell.
We work across the SP11 postcode area for AHU cleaning and the streets around it. Whether your site is on Stoke Road and Smannell Road or a nearby road, we can help. Neighbouring places we cover for AHU cleaning include Little London (1 mile north), Finkley (1 mile south-east), Enham Alamein (1 mile west), Upper Enham (1 mile north-west) and East Anton (1 mile south-west). Within a short drive, we also cover Basingstoke (15 miles east), Winchester (14 miles south-east), Hyde (13 miles south-east), Tidworth (9 miles west), Weeke (13 miles south-east) and Kempshott (14 miles east).
What’s near Smannell
Typical jobs here are in premises near Winton Community Academy and The Oak pub and the streets around them. The nearest railway station is Andover station, roughly 2.5 miles south-west of the centre. A little further out are Finkley Down Farm Museum (1.2 miles south) and Andover War Memorial Hospital (2.4 miles south-west). For a walk, there’s Anton Lakes and Mill Lake.
Landlords, agents and facilities managers
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Every building has its own written report, so each one has its own record.