Hampshire · Air handling unit cleaning
AHU Cleaning in Wherwell
We cover Wherwell for air handling unit cleaning. Fixed quotes, work around your opening hours and photo reports on every job.
- Blocked condensate drains and slimy trays
- Dirty coils holding back the airflow
- Dirty fans and fan housings
AHU cleaning in Wherwell, done properly
The fan pushes every bit of air in the system, so dirt on the impeller and housing gets spread around. We clean the fan section along with the rest of the unit, with the unit switched off and made safe first. If you have coils clogged with dust and debris and odours coming through the supply air, we can help.
For a building in or near Wherwell, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
We’ve been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
- Place
- Wherwell (SP11)
- Wider area
- Hampshire
- Paperwork
- Report and photos after the visit
- Price
- A fixed price before we start
- When we work
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
In-house cleaning or a specialist?
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you can’t see still need a specialist at the right interval.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. That’s our job.
How it works
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. All told, the work takes one overnight shift for many single units, with bigger plant phased. Rural roads and tight entrances are worth telling us about before a visit to Wherwell.
- We start with a survey of the unit and a fixed quote for the work.
- 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.
- We close up the unit and send the certificate and before and after photos.
Getting ready for the visit
- Mention any parking or loading restrictions
- Make sure equipment near the work can be switched off and left to cool
- Tell us about site rules, permits or sign-in
Get a fixed quote
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Related advice
Between visits
Once we’ve finished, these simple steps help:
- Clear leaves and litter away from the intake
- Store the TR19 paperwork where auditors can find it
- Make sure the unit’s access doors open easily
- Watch for drips or damp patches near the plant
You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.
Regular filter changes are the best protection an AHU has. Overloaded filters let more dirt through to the coils and fan.
Wherwell buildings and their air
Wherwell’s nearest hospital, Andover War Memorial Hospital, is about 4 miles north-west. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
Classrooms and halls at schools such as Wherwell Primary School are easiest to work in when pupils are away. Healthcare buildings such as Andover War Memorial Hospital, about 4 miles north-west, depend on their ventilation; if you manage a surgery, clinic or care home near Wherwell, yours matters too.
Wherwell is about 3 miles south-east of Andover, in Hampshire. Every kind of commercial site in Wherwell, we can take on AHU cleaning. We can work out of hours so the site keeps running. Wherwell is one of 683 towns, villages and districts in Hampshire we cover for commercial clients. We also work in Southampton, about 17 miles from Wherwell.
We work across the SP11 postcode area for AHU cleaning and the streets around it. We cover sites on High Street, Fair Piece and Beech Grove and the roads around them. Neighbouring places we cover for AHU cleaning include Wherwell Wood (1 mile north-west), Cottonworth (1 mile south-west), Chilbolton (1 mile south), Fullerton (1 mile south-west) and South Harewood (1 mile north-east). Larger places within reach include Winchester (9 miles south-east), Eastleigh (14 miles south), Andover (3 miles north-west), Chandler's Ford (13 miles south), Romsey (12 miles south) and Hyde (9 miles south-east).
What’s near Wherwell
Typical jobs here are in premises near White Lion Public House and Longstock Park, among other places. The closest station to Wherwell is Andover station, about 3.7 miles north-west of the centre. A little further out are Andover Museum (3.3 miles north-west) and Andover War Memorial Hospital (4 miles north-west). Green spaces nearby include Mill Lake and Anton Lakes.
Why deal with it now?
Cleaning a unit while it only has light dust is quick. Leave it for years and dirt bakes onto coils and casings, especially where there’s been moisture. Systems in rural buildings are often out of sight and out of mind.
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
Why book with us
- Fixed quotes from a survey or photos
- Accredited under CHAS and SafeContractor, with ISO 9001
- Every job surveyed first
- One number for every site across the South East and London
How we price AHU cleaning
Your quote is based on your site. We consider:
- How many systems or sites are involved
- The times the site is available
- Whether it’s a one-off visit or part of a schedule
- Access, including roofs, risers and ceiling voids
When the work has to happen, how we reach it and how big the site is can all change the price. Each of those is built into the quote and give you a fixed price before any work starts.
Helping us quote
What to send for a quote:
- The postcode and the type of business
- Photos showing the whole system and its surroundings
- Any access panels or hatches you can see
- The roof, plant room or outside wall the system runs to
Quoting starts with a diagnosis, either from photos and details you send or from a site visit. After that, you get a fixed price for the work, before work begins.
How the job changes from site to site
Drain trays
The drain tray collects water from the cooling coil. We clear standing water, clean out slime and check the outlet is draining.
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 so the quote reflects it.
Managing agents and facilities teams in Wherwell
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We are happy to deal with either side, and the report can go to both.
Records are where multi-site compliance often slips. Each visit produces a dated report with photos, so you can show an insurer or inspector what was done at each site.
Also near Wherwell
More services for Wherwell
Your questions about AHU cleaning in Wherwell
Is Wherwell in your area for AHU cleaning?
Yes, we work in Wherwell and the places around it. A fixed quote normally follows within one working day of the survey details.
Can you come to Wherwell after we close?
Yes, out-of-hours work is a big part of what we do. The work in Wherwell can fit around your hours. Your opening times are the first thing we ask for.
Can you quote from pictures?
Normally, yes. Send a few wide photos plus close-ups of panels, filters or grilles, and we normally come back within one working day. If photos are not enough, we’ll survey first.
Which parts of an air handling unit do you clean?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. Filters are cleaned or changed as agreed in the quote.
What do you do to protect the area?
We start with protection: sheeting over floors, worktops and anything close to the work. We tidy up and take our waste away before we leave.
Will you repair the fan or motor?
The clean includes noting faults, but repairs sit with your maintenance contractor, with the details in the report.
Which accreditations do you hold?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’ve been trading since 2009 and we’re fully insured.
Do you have a 24/7 line?
Yes, 24/7. Our office is open from 8am to 6pm on weekdays, and the emergency line covers the rest.