Hertfordshire · Air handling unit cleaning
Air handling unit cleaning in Burn's Green, Hertfordshire
AHU cleaning across Burn's Green and nearby, timed so the site keeps working and finished with a written report and photos.
- Air handling units with blocked filters
- Debris and leaves in the fresh air intake
- Odours coming through the supply air
How we handle AHU cleaning in Burn's Green
Drain trays under cooling coils are meant to empty. If the outlet blocks, standing water and slime build up, in the airstream that feeds the building. Clearing and cleaning the tray is central to every AHU clean. The work covers dampers and louvres, supply and extract fans and heating and cooling coils, and the jobs we see most are dust-coated heating and cooling coils and debris and leaves in the fresh air intake.
For a building in or near Burn's Green, access is agreed in advance and the visit is planned around the journey.
We have been trading since 2009, as 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.
- Where
- Burn's Green (SG2)
- Wider area
- Hertfordshire
- Records
- Report and photos after the visit
- Price
- A fixed quote up front
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
Between visits
Think of this as the after-treatment advice, short and simple:
- Keep inspection doors on the unit in good order
- Keep filter changes on time and recorded
- Don’t ignore odours coming through the grilles
- Look at the condensate drain whenever the unit is serviced
You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.
Regular inspection under TR19® Air shows when cleaning is due instead of leaving it to guesswork.
What staff can safely do
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We can diagnose it and quote.
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’s where we come in.
When it’s something else
A few issues sit outside what this work can do:
- Leaking heating or cooling coils
- Controls and BMS settings that run the unit
- Faulty motors, drives or bearings
Not sure which it is? You can call us on 0345 646 2711 or use the quote form and we’ll tell you honestly before you book.
What we work on in Burn's Green
- Supply and extract fans
- Dampers and louvres
- Drain trays
- Heating and cooling coils
- Filter sections
- Internal panels
How it works
Your staff don’t need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and we take it from there. Before we leave, the area is tidied and the paperwork follows. If the van will struggle with a lane or gateway near Burn's Green, let us know and we’ll plan around it.
- 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.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after pictures.
Preparing for the visit
- Make sure equipment near the work can be switched off and left to cool
- Let us know when the site is closed or quiet
- Let us know how we reach the system, including roofs, risers and plant rooms
Getting a quote
To help us quote: where the site is, what it is and its opening hours, a few pictures and the last certificate or report, if there is one. Once you have those, phone us on 0345 646 2711 or use the quote form.
Related advice
AHU cleaning in Burn's Green: local notes
For Burn's Green, the closest hospital is Lister Hospital, roughly 5.4 miles north-west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. Burn's Green is about 27 miles from central London, well within the area we cover across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site.
Lister Hospital, about 5.4 miles north-west, is the nearest hospital to Burn's Green, and healthcare sites of every size need their supply air kept clean. For schools like Benington Church of England Primary School, the holidays are the usual time to inspect and clean ventilation.
Burn's Green is about 4 miles south-east of Stevenage, in Hertfordshire. Whatever kind of site you run in Burn's Green, we can take on AHU cleaning. We can work out of hours so the site keeps running. Burn's Green is one of 381 towns, villages and districts in Hertfordshire where we work for AHU cleaning. Our London page covers sites nearby (27 miles or so).
All of SG2 is covered for AHU cleaning, from busy streets to back roads. Close by, we work in Whempstead (1 mile south-east), Dane End (2 miles south-east), Haultwick (2 miles east), Sacombe (2 miles south-east) and Sacombe Green (3 miles south-east). Within a short drive, we also cover Stevenage (4 miles north-west), St Albans (14 miles south-west), Bishop's Stortford (11 miles east), Welwyn Garden City (7 miles south-west), Harpenden (12 miles south-west) and Hitchin (9 miles north-west).
What’s near Burn's Green
We work in commercial kitchens and buildings around The Bell Public House and the streets around them. Burn's Green’s nearest station is Watton-At-Stone station, about 2.3 miles south. A little further out are Datchworth Museum (3.7 miles south-west) and Lister Hospital (5.4 miles north-west). Open spaces near Burn's Green include Astonbury Wood.
What affects the quote in Burn's Green
The diagnosis comes before the price. The main factors are:
- When the work can happen, such as evenings, overnight or weekends
- The number of sites or systems
- How easy every part is to reach
- How big the system is
Several systems or sites on one quote often makes better use of the time. Mention every system or site you need covered and we will price it together.
Helping us quote
When you contact us, these details help:
- Problems your staff have spotted
- The paperwork from the last visit, if you have it
- Wide photos of the system and the area around it
- When the site is open and when it’s quiet
Every quote begins with a look at the system, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price, before we start.
Your questions about AHU cleaning in Burn's Green
Do you offer AHU cleaning in Burn's Green?
Yes. Our area runs across London and the South East, Burn's Green included. Just phone us on 0345 646 2711, or send details by email with a few details of the site.
Do you work in villages like Burn's Green?
Yes, Burn's Green is part of our area, however small the site. Let us know about access, parking and anything unusual about getting there when you book.
What do you do with what you remove?
It’s contained and taken away. We collect grease, debris and waste water as we go rather than letting it spread.
What does TR19 mean?
BESA’s ventilation hygiene specification in two main parts: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It is not legislation, but it’s the standard people check against.
Are you fully insured?
Yes. We carry full insurance and have been trading since 2009.
Can you come out in an emergency?
Yes. There’s a 24/7 emergency line for anything that cannot wait until a planned visit. Call us any time and explain what’s happened.
Can you clean the AHU out of hours?
Yes. We time the work to fit the building’s hours. In hospitals and care homes, we agree timings with the site team.
Do you work with multi-site operators?
Yes. You deal with one contact for every site in our area, with visits on a regular schedule.
Places near Burn's Green
Other services in Burn's Green
Landlords, agents and facilities managers
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
From a single site to a large estate, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with photos.
Part by part
Filters
Filter condition tells you a lot about the rest of the unit. We photograph them for the report.
Internal casing and panels
Access doors and panels are opened in turn and closed properly afterwards, and check every one is shut.