Hampshire · Air handling unit cleaning
Wherwell Wood AHU cleaning
One call covers cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Wherwell Wood, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Coils clogged with dust and debris
- Condensate trays that won’t empty
- Units that have only ever had filter changes
Different parts, different methods
Fans and fan sections
Every bit of air passes the fan, so a dirty fan sends dirt downstream. The impeller, its housing and the fan chamber are cleaned.
Heating and cooling coils
Coil fins are close together and catch the dust the filters miss. We clean them with care so the fins aren’t damaged.
AHU cleaning in Wherwell Wood, done properly
Every supply and extract system relies on the air handling unit at its centre: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Anything that collects inside the unit can end up in the rooms it serves, so cleaning the unit matters as much as cleaning the ducts. Common call-outs are for stale or musty smells from the ventilation and plant that has been serviced but not cleaned, across dampers and louvres, supply and extract fans and drain trays.
In a village or hamlet like Wherwell Wood, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
Duct Doctor has been trading since 2009, and we’re 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.
- Place
- Wherwell Wood (SP11)
- Wider area
- Hampshire
- Reporting
- Written report with pictures
- Price
- Fixed quote, normally within a working day
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Also near Wherwell Wood
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Questions from Wherwell Wood
Is AHU cleaning available in Wherwell Wood?
Yes, Wherwell Wood is covered. You can call 0345 646 2711, or email photos and tell us what needs doing.
Do you work in villages like Wherwell Wood?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
Which kinds of sites do you work on?
Any commercial site with kitchens or ventilation, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
What should I send you?
Just the basics: the address, the site type, your opening hours and how we reach the system. Photos and the last report help too. Then call 0345 646 2711 or use the quote form.
What does TR19 mean?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Can you fix a faulty AHU?
Our AHU work is cleaning rather than mechanical repair. If we spot a fault, we note it in the report for your maintenance team to follow up.
Is there a survey before the work?
Yes. For many sites, photos and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
Can one contract cover all our sites?
Yes. Tell us the addresses and what each needs and you’ll get one fixed quote.
Keeping the system healthy
How long the results last depends on use and care. We suggest:
- Report musty smells from the vents straight away
- Book the next check in line with the report
- Stick to the filter change plan
- Do not store bins or materials near the intake
The report shows each section of the unit before and after, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Check drain trays and condensate drains during routine maintenance. A drain that’s cleared early never gets to the slime stage.
Ventilation in Wherwell Wood buildings
Andover War Memorial Hospital is the nearest hospital, about 3.2 miles north-west of Wherwell Wood. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
Healthcare ventilation, from large hospitals like Andover War Memorial Hospital (about 3.2 miles north-west) to small clinics, depends on clean filters, coils and ducts. Classrooms and halls at schools such as Wherwell Primary School are easiest to work in when pupils are away.
Wherwell Wood is about 3 miles south-east of Andover, in Hampshire. Whether your site is in the middle of Wherwell Wood or further out, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. Wherwell Wood is one of 683 towns, villages and districts in Hampshire we cover for commercial clients. We also work in Southampton, around 18 miles away.
We cover every part of the SP11 postcode area for AHU cleaning and the streets around it. Close by, we work in Wherwell (1 mile south-east), Goodworth Clatford (1 mile west), Cottonworth (1 mile south), Fullerton (2 miles south) and Chilbolton (2 miles south-east). We also work in nearby towns such as Winchester (10 miles south-east), Eastleigh (15 miles south), Andover (3 miles north-west), Chandler's Ford (13 miles south), Romsey (13 miles south) and Hyde (10 miles south-east).
Around Wherwell Wood
Locally, jobs take us to businesses close to White Lion Public House and Winton Community Academy, among other places. Wherwell Wood’s nearest station is Andover station, roughly 2.9 miles north-west. Nearby you’ll also find Andover War Memorial Hospital (3.2 miles north-west) and Andover Museum (2.6 miles north). Not far away are Mill Lake and Anton Lakes.
What staff can safely do
Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but the parts you can’t see still need a specialist at the right interval.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, next to our reports.
How the visit works
When we arrive, we check the system against the survey or the pictures you sent. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes half a day to a full day per unit, with large plant planned over several shifts. Somewhere as small as Wherwell Wood, the date and timings are agreed with you well before the day.
- 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.
- Filters, coils, fan section and casing are cleaned in turn.
- Drain trays are cleared and cleaned and the outlet checked.
- A TR19® certificate and photo report follow the clean.
Before we arrive
- Mention any parking or loading restrictions
- Make sure equipment near the work can be switched off and left to cool
- Find the previous report, if there is one
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. Add the site type and your opening hours, and many jobs can be priced from that alone.
Read more
Managing agents and facilities teams in Wherwell Wood
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so records stay tidy.
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we’ll come back with a fixed quote.
What affects the quote in Wherwell Wood
The survey tells us what the work involves. The main factors are:
- Working hours and out-of-hours timing
- Any permits to work or inductions
- The number of sites or systems
- A single visit or a regular plan
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.
Helping us quote
Many jobs can be priced from photos and some basics. Send what you can of the following:
- Problems your staff have spotted
- The roof, plant room or outside wall the system runs to
- Any previous report or certificate
- Where the site is and what kind of site it is
Here’s what helps us quote: the address, the type of site and when it’s open, a few photos and any previous report or certificate. Then give us a ring on 0345 646 2711 or email us.
Why it’s worth doing now in Wherwell Wood
A slimy drain tray only gets worse. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Clearing it now is a much smaller job. A fault that closes a site in a village like Wherwell Wood affects everyone who depends on it.
You will not find a price list here, because the cost depends on the site in front of us. For a fixed quote, phone us on 0345 646 2711 or send us an email, and we will explain what it covers.
Why book with us
- We’re fully insured
- CHAS, SafeContractor and ISO 9001
- Fixed quotes from a survey or pictures
- One number for every site across the South East and London
Read our cost guide and how to check a contractor.