Hampshire · Air handling unit cleaning
Upper Common AHU cleaning
Our technicians work in Upper Common on air handling unit cleaning. Out-of-hours visits, a fixed quote and a written report with pictures on every job.
- Units that have only ever had filter changes
- Plant that needs cleaning after a refit
- Coils clogged with dust and debris
Different parts, different methods
Internal casing and panels
We open each section through its doors and close them securely when we are done before the unit is handed back.
Drain trays
Older trays can corrode and start leaking. Their condition goes into the report with photos so you can decide on any repairs.
How we handle AHU cleaning in Upper Common
Heating and cooling coils trap dust that gets past the filters. A coated coil restricts airflow and makes the unit work harder. We clean coils with methods suited to their condition, taking care not to damage the fins. If you have dust-coated heating and cooling coils and condensate trays that won’t empty, we can help, from supply and extract fans, internal panels and dampers and louvres onwards.
Somewhere as small as Upper Common, ducted ventilation is typically limited to a school, a care home, a surgery or a converted business building, wherever there is one, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
Think of the report as the system’s health record: a dated account with photos of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.

- Location
- Upper Common (RG25)
- Region
- Hampshire
- Reporting
- Photo report after every visit
- Quote
- A fixed quote up front
- Working hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
What affects the quote in Upper Common
Some jobs are bigger than they look, and some smaller. The main factors:
- The condition we find in the survey
- Any permits to work or inductions
- Whether several sites go on one quote
- When the work can happen, such as evenings, overnight or weekends
No two sites are the same, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Helping us quote
There’s no need for technical detail. It helps if you can send:
- Detail shots of panels, filters and grilles
- The roof, plant room or outside wall the system runs to
- Photos showing the whole system and its surroundings
- The paperwork from the last visit, if you have it
Getting a quote does not take long. Send a few details and pictures, and we typically reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Keeping the system healthy
After the visit, a few habits help the work last:
- Book the next check in line with the report
- Check the drain tray is emptying during routine visits
- File each AHU report in the maintenance log
- Stick to the filter change plan
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.
Make the drain tray part of every maintenance visit. Catching a slow drain early stops standing water building up.
Common problems we fix in Upper Common
Whatever surrounds a building in Upper Common, the air drawn into its AHU carries dust, pollen and debris. The intake section and first filters take the brunt, and the finer material travels on.
What we are most often called out for:
- Fan sections that haven’t been cleaned in years
- Plant that needs cleaning after a refit
- Intake sections clogged with outdoor debris
- Plant that has been serviced but not cleaned
For buildings in and around Upper Common, TR19® Air cleaning starts with an inspection.
Questions to ask before you book
- Whether VAT is included
- Proof of insurance
- Proof of accreditation you can verify
- What paperwork you get at the end
What happens on the day
The visit has three parts: set-up, the treatment itself and the sign-off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with pictures. The middle part takes longest, and that takes a single shift for a typical unit, longer for large or heavily soiled ones. Pictures of the system and its access let us plan the work in Upper Common before we set off.
- We survey the unit from photos or on site and agree what’s included.
- 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.
- Standing water and slime come out of the tray and the drain is checked.
- You get a TR19® certificate and a photo report.
Before we arrive
- Clear loose items from the work area
- Mention any parking or loading restrictions
- Let us know how we reach the system, including roofs, risers and plant rooms
How to get a quote
The quickest way to a quote is to send photos: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Related advice
What AHU cleaning looks like in Upper Common
Upper Common’s nearest hospital, Basingstoke and North Hampshire Hospital, is about 5.2 miles north. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. We cover Upper Common, about 48 miles from central London, as part of our work across London and the South East. Evening, overnight and weekend visits are all possible.
If you run a surgery, dental practice or care home near Upper Common, clean ventilation matters as much to you as to a hospital like Basingstoke and North Hampshire Hospital (about 5.2 miles north).
Upper Common is about 4 miles south of Basingstoke, in Hampshire. Every kind of commercial site in Upper Common, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so the site keeps running. We cover 683 places across Hampshire, large and small. You can also see our page for Reading, about 18 miles away.
Work in RG25 is surveyed, quoted and booked the same way as anywhere else. Close by, we work in Ellisfield (1 mile north-east), Cliddesden (2 miles north), Nashes Green (3 miles east), Viables (3 miles north) and Eastrop (4 miles north). Further out, we also cover Basingstoke (4 miles north), Winchester (14 miles south-west), Fleet (12 miles north-east), Aldershot (15 miles east), Alton (6 miles south-east) and Petersfield (15 miles south-east).
Near you in Upper Common
We work in commercial kitchens and buildings around The Fox pub and the streets around them. For rail, the closest station is Basingstoke station, roughly 4.4 miles north of the centre. A little further out are Barton Castle (4.6 miles south) and Gliding Heritage Centre (3.5 miles south-east). Not far away are Farleigh Hill.
FAQs for Upper Common
Will you come out to Upper Common?
Yes, smaller places are covered as well as towns. Photos of the system and directions to the site help us plan the visit.
Is Upper Common in your area for AHU cleaning?
Yes. We work across London and the South East, and Upper Common is part of that. A fixed quote normally follows within one working day of the survey details.
Is there a survey before the work?
Yes. We always survey first, from your pictures and details, or with a visit where necessary. A fixed quote follows.
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.
Can you quote from pictures?
Yes, for many jobs. Send a few wide photos plus close-ups of panels, filters or grilles, and we typically come back within one working day. If photos are not enough, we will survey first.
What happens if you can’t reach some of it?
The report shows them clearly. In ductwork, new access panels are often the answer, and we can fit those.
Can you clean the AHU out of hours?
Yes. Evening, overnight and weekend work is all possible, so the building keeps running in the day.
How do you protect the area?
Protection goes down first: sheeting over floors, worktops and anything close to the work. We tidy up and take our waste away before we leave.
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
- Coils that are corroded or leaking and need replacing
- The supply and extract ducts, quoted separately
If in doubt, call 0345 646 2711, or email photos and we’ll say what we think.
What we work on in Upper Common
- Filter sections
- Supply and extract fans
- Heating and cooling coils
- Internal panels
- Drain trays
- Dampers and louvres
Towns and villages near Upper Common
What else we do in Upper Common
Why deal with it now?
Leave an AHU uncleaned and the dirt does not stay put. It’s carried through the ductwork and out of the grilles, which is why the unit and the ducts are best cleaned together. In a small place like Upper Common, a system that fails can take a site out of use.
When the work has to happen, how we reach it and how big the site is all affect the cost. Each of those is built into the quote, and the price is fixed before we start.
Why us?
- One number for every site across the South East and London
- Fixed quotes, usually within one working day
- Every visit written up, with pictures
- Survey first, then a fixed quote
Take a look at our cost guide or how to check a contractor.