Hampshire · Air handling unit cleaning
Vernham Dean AHU cleaning
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Vernham Dean, surveyed first and signed off with a written report and pictures. Ask us for a fixed quote.
- Leaves and litter drawn into the unit
- Coils clogged with dust and debris
- Plant that has been serviced but not cleaned
AHU cleaning for kitchens and businesses in Vernham Dean
Coils are where a lot of the dirt ends up. Dirt on the fins holds back air and makes the unit work harder to do the same job. Coils are cleaned carefully, with methods chosen so the fins are not flattened. We are often asked to deal with intake sections clogged with outdoor debris and plant that needs cleaning after a refit, on filter sections, drain trays and supply and extract fans.
Work in a small place like Vernham Dean starts with agreeing access and timings, and the ventilation is inspected, cleaned and recorded the same as anywhere.
Good records are part of the job. Each visit is written up with pictures, listing what was done, anything we couldn’t reach and when the next visit is due. File it in your maintenance log so it’s to hand when an insurer or inspector asks.
- Where
- Vernham Dean (SP11)
- Region
- Hampshire
- Reporting
- Report and photos after the visit
- Price
- A fixed quote up front
- When we work
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
AHU cleaning around Vernham Dean
Vernham Dean is within the area we cover across London and the South East. Evening, overnight and weekend visits are all possible.
An inspection comes first for any ventilation job around Vernham Dean, so the cleaning matches what’s there.
Vernham Dean is about 7 miles north of Andover, in Hampshire. Anywhere in SP11, we cover AHU cleaning for commercial sites. We cover 683 places across Hampshire, from busy centres to quieter spots. There’s also a page for Reading, about 25 miles away.
Here we cover the SP11 postcode area for AHU cleaning. You will find streets such as Bulpits Hill and Back Lane, all of which we cover for AHU cleaning. Nearby, we also carry out AHU cleaning in Woodside (1 mile west) and Bagshot (6 miles north). Larger places within reach include Andover (7 miles south), Tidworth (8 miles south-west), Ludgershall (6 miles south-west), Whitchurch (9 miles south-east), East Anton (6 miles south) and Oakley (15 miles east).
Near you in Vernham Dean
Around Vernham Dean, our work takes us to kitchens and buildings near The George Inn and the streets around them. For a walk, there’s Inkpen Hill.
Other services in Vernham Dean
What we’re called out for in Vernham Dean
It matters for two reasons: air quality, since the unit feeds occupied rooms, and performance, since dirt makes it strain. For the people using the building every day, that is the air they breathe for hours on end.
Any of these means the system needs a check-up:
- Dust-coated heating and cooling coils
- Rooms that smell stuffy when the system runs
- Units that have only ever had filter changes
- Intake sections clogged with outdoor debris
School buildings such as Vernham Dean Gillum's Church of England Primary School are usually done in the holidays, so classrooms aren’t disturbed.
Comparing quotes
- What hours they’ll be on site
- How they set the interval to the next visit
- If the quote is a fixed price or an estimate
- Whether inaccessible sections are listed on the report
What we do, step by step
We are used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. The visit itself takes from a few hours for a compact unit to a day or more for a large one. Pictures of the system and its access let us plan the work in Vernham Dean before we set off.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Getting ready for the visit
- Move anything stored near the system
- Let us know how we reach the system, including roofs, risers and plant rooms
- Have your last certificate or report to hand
Getting a quote
The quickest way to a quote is to send pictures: 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
What affects the cost of AHU cleaning
Your quote is based on your site. We take into account:
- Any permits to work or inductions
- When the work can happen, such as evenings, overnight or weekends
- Parking and loading at the site
- The condition we find in the survey
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, and a neglected system can mean more work. If you’re unsure, ring 0345 646 2711 or drop us a line and we will give you an honest view and a fixed quote.
Asking for a quote
Photos let us diagnose from a distance. Try to include:
- Any symptoms, from odd noises to smells or leaks
- Close-ups of filters, grilles, hatches or access panels
- A few general shots of the system
- The postcode and the type of business
Some systems can be priced from pictures; others need a survey. 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.
In-house cleaning or a specialist?
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
Multi-site and managed buildings
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.
We also work for facilities teams across offices, schools and healthcare across Hampshire. Larger estates can be phased building by building around the people who use them.
Common questions in Vernham Dean
Will you come out to Vernham Dean?
Yes, Vernham Dean is part of our area, however small the site. A survey first, from photos or a visit, means we arrive with the right kit.
Is AHU cleaning available in Vernham Dean?
Yes, Vernham Dean is within the area we cover across London and the South East. You can ring 0345 646 2711, or send details by email and tell us what needs doing.
How long does it take to clean an air handling unit?
As a guide, it 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.
What types of premises do you cover?
Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line, for problems that cannot wait. Call us any time and explain what’s happened.
Can you price the work without visiting?
Yes, where the pictures show enough. If not, a site survey comes first, then a fixed quote.
Are you fully insured?
Yes. Duct Doctor is fully insured, and the details are available on request.
What is TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It covers how systems are inspected, cleaned and checked and expects a risk-based approach.
Why deal with it now?
If people in a building in Vernham Dean complain about stuffy or smelly air, the AHU is worth looking at. A clean tackles the source instead of masking it. Somewhere as small as Vernham Dean, losing a kitchen or building to a fault is felt by everyone who uses it.
Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all play a part.
Why choose Duct Doctor in Vernham Dean
- Photo reports with every job
- Fixed quotes, typically within one working day
- A single point of contact for sites across the South East and London
- CHAS, SafeContractor and ISO 9001
Read our cost guide and how to check a contractor.
Looking after it afterwards
Looking after the system between visits is straightforward, and it helps at the next visit:
- Check the drain tray is emptying during routine visits
- Don’t store bins or materials near the intake
- Store the TR19 paperwork where auditors can find it
- Change filters on schedule and log each change
The report suggests a date for the next inspection or clean, taking into account how dirty it was. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.