Hampshire · Air handling unit cleaning
Stonymarsh AHU cleaning
Our technicians work in Stonymarsh on AHU cleaning. Fixed quotes, work around your opening hours and photo reports as standard.
- Rooms that smell stuffy when the system runs
- Units needing a clean before a new tenant or handover
- Debris and leaves in the fresh air intake
What affects the cost of AHU cleaning
A fixed price needs a few facts first. We check:
- How big the system is
- Site requirements such as sign-in and permits
- The number of sites or systems
- The condition we find in the survey
What you pay reflects the actual work. That is why every job is surveyed first, and the price is agreed before we start.
What we need to know
Many jobs can be priced from photos and some basics. Send what you can of the following:
- The roof, plant room or outside wall the system runs to
- Your opening hours and when the area is out of use
- The paperwork from the last visit, if you have it
- Where the site is and what kind of site it is
There’s no standard price list, because every site is different. Instead, we look at your site first, from pictures or a survey, and then send you a fixed quote. To get going, call us on 0345 646 2711, or send details by email.
AHU cleaning in Stonymarsh
An AHU clean is a thorough examination and treatment of the unit. Every section is opened, cleaned and photographed, so you can see the unit’s condition for yourself. The work covers drain trays, filter sections and dampers and louvres, and common reasons people get in touch are dirty fans and fan housings and leaves and litter drawn into the unit.
Work in a small place like Stonymarsh starts with agreeing access and timings.
Each visit ends with a written report and pictures, so there’s a dated record of the work. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Place
- Stonymarsh (SO51)
- Wider area
- Hampshire
- Reporting
- Written report with photos
- Quotes
- A fixed price before work begins
- When we work
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Nearby places to Stonymarsh
Other services in Stonymarsh
Your questions about AHU cleaning in Stonymarsh
Can you do AHU cleaning in Stonymarsh?
Yes. We work across London and the South East, and Stonymarsh is part of that. Just call 0345 646 2711 or send us an email with a few details of the site.
Can you come to Stonymarsh after we close?
Yes, out-of-hours work is a big part of what we do. The work in Stonymarsh can fit around your hours. Just call 0345 646 2711 or email us with your opening times and we will plan around them.
Is there a survey before the work?
Yes. Every job is surveyed first, either from pictures and details you send or on a site visit. Then you get a fixed quote.
Can you look after several sites?
Yes. Our area covers London and the South East, so we can schedule a run of sites on one programme. Every site has its own report.
How often should an air handling unit be cleaned?
There’s no single answer; it comes down to the building and the unit. Inspection tells you when cleaning is needed, and we’ll suggest an interval after the first clean.
Do you clean the ductwork as well?
Yes. We clean supply and extract ductwork to TR19® Air as well. It’s often worth doing both at once, and we can survey both on the same visit.
Can you set up regular visits?
Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. The report from each visit recommends the next date.
How far ahead should we book?
Earlier is better, especially for out-of-hours work. Quotes normally come back within one working day, and emergencies are covered by our 24/7 line.
Managing agents and facilities teams in Stonymarsh
If you look after several sites, we can schedule visits across all of them on one quote. Each site gets its own report and photos, so records stay tidy.
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.
What we are called out for in Stonymarsh
Filters catch most of the dust, but not all of it. What gets through settles on coils, fans and the inside of the casing, a little more each month.
Clients typically contact us when they notice one of these:
- Dirty fans and fan housings
- Units that have only ever had filter changes
- Blocked condensate drains and slimy trays
- Debris and leaves in the fresh air intake
Hospitals such as Romsey Community Hospital (about 3.7 miles south-east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Stonymarsh are no different.
Comparing quotes
- Whether VAT is included
- Which accreditations they hold, and whether you can check them
- When the next visit should be, and why
- Whether a written report and photos are included
In-house cleaning or a specialist?
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
What the work involves, part by part
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. The intake section gets particular attention.
Internal casing and panels
Damaged internal linings or loose panels can shed material into the air. We note any we find in the report.
The process
A visit follows the same order every time: sheeting and protection first, make the system safe, carry out the AHU cleaning, clear away and leave you the report. On site, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. We agree a date with you, plan the drive to Stonymarsh and turn up when the site is quiet.
- We survey the unit from pictures or on site and agree what’s included.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- We clean out the drain tray and make sure it drains.
- A TR19® certificate and photo report follow the clean.
Getting ready for the visit
- Tell us about site rules, permits or sign-in
- Arrange a key holder or contact on site
- Allow time for equipment near the work to be turned off and cool down
Get a fixed quote
Here’s what helps us quote: where the site is, what it is and its opening hours, photos of the system and the last certificate or report, if there is one. Once you have those, call 0345 646 2711 or send us an email.
Related advice
AHU cleaning in Stonymarsh: local notes
About 3.7 miles south-east of Stonymarsh is Romsey Community Hospital, the nearest hospital. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
In Stonymarsh, we look inside the system before deciding what needs cleaning.
Stonymarsh is about 4 miles north-west of Romsey, in Hampshire. From the centre of Stonymarsh to the outskirts, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. Stonymarsh is one of 683 places in Hampshire where we work for commercial clients. Our Southampton page covers sites nearby, about 10 miles away.
Work in SO51 is surveyed, quoted and booked the same way as anywhere else. Other places close to Stonymarsh include Mottisfont (1 mile west), Michelmersh (1 mile south-east), Kimbridge (1 mile south-west), Dunbridge (1 mile south-west) and Timsbury (1 mile south-east). Within a short drive, we also cover Winchester (9 miles east), Eastleigh (9 miles south-east), Andover (12 miles north), Totton (8 miles south), Chandler's Ford (7 miles south-east) and Hedge End (13 miles south-east).
Near you in Stonymarsh
In Stonymarsh, that means kitchens and buildings near The Bear And Ragged Staff Public House. The nearest railway station is Mottisfont & Dunbridge station, roughly 1.1 miles west. Well-known places in the area include Romsey Community Hospital (3.7 miles south-east) and King Johns House (3.5 miles south). Open spaces near Stonymarsh include Emer Bog and Baddesley Common.
What AHU cleaning cannot fix
An honest diagnosis matters more to us than a booking, so here’s what this work cannot put right:
- Controls and BMS settings that run the unit
- Coils that are corroded or leaking and need replacing
- The supply and extract ducts, quoted separately
If you are not sure, just call 0345 646 2711 or use the quote form and we’ll give you a straight answer before booking.
What we work on in Stonymarsh
- Heating and cooling coils
- Dampers and louvres
- Internal panels
- Drain trays
- Supply and extract fans
- Filter sections