Hampshire · Air handling unit cleaning
AHU Cleaning in Alderholt
Need AHU cleaning in Alderholt? We survey first, give you a fixed quote and work around your opening hours, finishing with a written report and pictures.
- Dust-coated heating and cooling coils
- Leaves and litter drawn into the unit
- Air handling units with blocked filters
AHU cleaning for kitchens and businesses in Alderholt
We clean the parts of the unit where dirt and moisture gather: filters, coils, drain trays, fans and the internal panels. You get a TR19® certificate and a photo report showing the unit before and after. We are often asked to deal with filters that are clogged or overdue and drain trays holding standing water, across internal panels, filter sections and dampers and louvres.
Visits to a place like Alderholt are fitted around opening hours. The method does not change: inspect first, clean, then record what was done.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Where
- Alderholt (SP6)
- Region
- Hampshire
- Paperwork
- Written report with pictures
- Price
- Fixed quote, normally within a working day
- When we work
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
How we price AHU cleaning
Your quote is based on your site. We take into account:
- Whether several sites go on one quote
- One-off work versus a regular cycle
- Working hours and out-of-hours timing
- What state the system is in
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 make a difference.
What to send for a quote
What to send for a quote:
- The site address and the type of premises
- How we’d reach plant on a roof or in a plant room
- Close-ups of filters, grilles, hatches or access panels
- When the site is open and when it’s quiet
To get a fixed quote, call 0345 646 2711, or email photos and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You will normally have a quote within one working day.
What staff can safely do
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that is where we come in.
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, alongside our reports.
Questions from Alderholt
Is AHU cleaning available in Alderholt?
Yes, we work in Alderholt and the places around it. A fixed quote usually follows within one working day of the survey details.
Do you work at weekends in Alderholt?
Yes. We work evenings, overnight and at weekends. Your customers, staff or residents in Alderholt needn’t be disturbed. Let us know the hours you’re closed and we’ll book within them.
Can you come out in an emergency?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
Is there a report after cleaning?
Yes. A TR19® certificate and photo report are sent after the clean, including anything we think needs attention.
How often do AHUs need cleaning?
TR19® Air takes a risk-based approach, so it depends on inspection rather than a fixed interval. We recommend a next date in each report.
What if parts of the system cannot be reached?
They’re listed in the report, never skipped quietly. The report says which parts couldn’t be reached and why, and we can quote to improve the access.
Which parts of an air handling unit do you clean?
The main parts are the filters, coils, drain tray, fan and inside of the casing. We confirm the scope after looking at the unit.
Do you do ventilation duct cleaning too?
Yes. We reach the ducts through access panels, with anything inaccessible recorded, with new panels fitted where needed.
AHU cleaning in Alderholt: local notes
Alderholt is on our map: we cover London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you.
Ventilation work in and around Alderholt is risk-based: inspect, then clean what needs it.
Alderholt is in Hampshire. We carry out AHU cleaning for businesses, landlords and public buildings in Alderholt and the rest of Hampshire. Alderholt is one of 683 towns, villages and districts in Hampshire where we work for commercial clients. You can also see our page for Southampton, about 19 miles away.
All of SP6 is within our area for AHU cleaning, from the main roads to the quietest streets. Whether your site is on Station Road, Antell's Way and South Hill or anywhere close by, our technicians can take on the work. You’ll find Alderholt on the B3078, which makes it straightforward for our technicians to reach for AHU cleaning. We also cover the places around Alderholt: Sandleheath (1 mile north), Ashford (2 miles north-east), Broxhill (2 miles west), Damerham (2 miles north-west) and Rockbourne (4 miles north). Further out, we also cover Totton (14 miles east), New Milton (13 miles south-east), Ringwood (5 miles south-east), Barton on Sea (14 miles south-east), Ashley (13 miles south-east) and St Leonards (6 miles south).
What’s near Alderholt
Around Alderholt, our work takes us to kitchens and buildings near The Churchill Arms and The Burgate School and Sixth Form. Other landmarks nearby include Godshill Castle Hill (3.6 miles north-east) and Fordingbridge Doll Museum (2 miles north-east). Not far away are Blashford Lakes and Linbrook Lake.
Managing agents and facilities teams in Alderholt
Running several sites is easier with one contractor. We cover South East England and London, so visits at different addresses can be planned together and kept on a regular cycle.
Facilities teams in offices, schools and healthcare sites book us too across Hampshire. Larger estates can be phased building by building to keep disruption down.
Also near Alderholt
Other services in Alderholt
Different parts, different methods
Drain trays
Condensate from the coil drips into a tray beneath it. We clear standing water, clean out slime and check the outlet is draining.
Filters
Clogged filters reduce airflow, and dirt can get round the edges. The filter section is cleaned so new or cleaned filters sit properly.
What we do, step by step
Each visit runs to the same pattern: sheeting and protection first, make the system safe, do the work, clear away and hand over the paperwork. The visit itself takes a single shift for a typical unit, longer for large or heavily soiled ones. In a smaller place like Alderholt, parking is rarely the issue, but tell us about gates, roof access and opening hours.
- We start with a survey of the unit and a fixed quote for the work.
- The unit is shut down with your site team and the area protected.
- 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 pictures.
Getting ready for the visit
- Agree a time when the area can be out of use
- Move anything stored near the system
- Name a contact who can let us in at the agreed time
How to get a quote
There’s no standard price list, because every site is different. Instead, we look at your site first, from photos or a survey, and then send you a fixed quote. To get going, call us on 0345 646 2711 or email us.
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Common problems we fix in Alderholt
Filters catch most of the dust, but not all of it. What gets through settles on coils, fans and the inside of the casing, building up layer by layer.
Keep an eye out for any of the following:
- Coils clogged with dust and debris
- Filters that are clogged or overdue
- Blocked condensate drains and slimy trays
- Plant that has been serviced but not cleaned
Classrooms and halls at schools such as St James' Church of England First School are easiest to work in when pupils are away.
Questions to ask before booking
- Whether the work can be done while the site is closed
- What records you’ll receive afterwards
- Whether they’re fully insured
- How they set the interval to the next visit
Aftercare tips
How long the results last depends on use and care. Here’s what we suggest:
- Report water on the plant room floor
- Change filters on schedule and log each change
- Plan the next inspection before the last report gets filed away
- Look at the condensate drain whenever the unit is serviced
The report suggests a date for the next inspection or clean, based on what we found. 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 instead of leaving it to guesswork.