Hertfordshire · Air handling unit cleaning
Broad Colney AHU cleaning
Looking for AHU cleaning in Broad Colney? We diagnose first, fix the price and book the work around your hours, finishing with a written report and photos.
- Leaves and litter drawn into the unit
- Air handling units due a clean after building work
- Fan sections that haven’t been cleaned in years
AHU cleaning in Broad Colney
If the units serving a building in Broad Colney have only had filter changes for years, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full AHU clean takes in the whole unit. If you have dust-coated heating and cooling coils and drain trays holding standing water, we can put it right.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, which makes them easy to overlook.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we are fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Place
- Broad Colney (AL2)
- Region
- Hertfordshire
- Paperwork
- Written report with pictures
- Quotes
- A fixed quote up front
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Looking after it afterwards
Simple habits between visits make a real difference. Our advice:
- Report water on the plant room floor
- Clear leaves and litter away from the intake
- Change filters on schedule and log each change
- Keep the certificate and photo report with the plant records
Restart the unit with your site team or maintenance contractor once we have finished. Keep an eye on the condensate drain over the next few days to make sure it stays clear.
Regular inspection under TR19® Air shows when cleaning is due instead of leaving it to guesswork.
For landlords and multi-site operators
Multi-site operators often want one contractor and one number. We cover South East England and London, so a run of sites can go into one programme and kept to a regular schedule.
If you look after several sites, we can plan visits across the whole estate and price them together. Every building has its own written report, so records stay tidy.
Part by part
Heating and cooling coils
Because cooling coils run wet, the dirt on them tends to cling. We clean the coil and the tray beneath it together.
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. A clean fan runs more smoothly.
FAQs for Broad Colney
Will you come out to Broad Colney?
Yes. Broad Colney is within the area we cover across London and the South East. A survey first, from pictures or a visit, means we arrive with the right kit.
Can the work in Broad Colney be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. It means the site in Broad Colney keeps running as normal. Your opening times are the first thing we ask for.
What do you do to 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.
Do you work with multi-site operators?
Yes. One number covers all your sites across London and the South East, with visits on a regular schedule.
Will you repair the fan or motor?
Motors, belts, controls and coils that need repair are a job for your maintenance contractor. We clean the unit and report anything we see that needs attention.
Do you offer maintenance contracts?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, to suit the system and how it’s used.
Does the AHU have to be shut down for cleaning?
Yes, while the clean is under way. We can work evenings, overnight or at weekends to keep disruption down.
What about areas you can’t get to?
They’re listed in the report, never skipped quietly. You’ll know exactly which parts weren’t reached and why, along with a quote to put access in.
Do you need AHU cleaning in Broad Colney?
Most units live out of sight on roofs, in plant rooms or in ceiling voids and are rarely seen by anyone but maintenance staff. It’s easy for a long time to go by without anyone opening the panels.
Any of these means the system needs a check-up:
- Debris and leaves in the fresh air intake
- Air handling units due a clean after building work
- Coils clogged with dust and debris
- Filters that are clogged or overdue
Hospitals such as Napsbury Hospital (about 0.7 miles north-west) show how much a building can rely on clean ventilation, and smaller healthcare sites near Broad Colney are no different.
What your quote should include
- Whether the price is fixed
- How VAT is shown on the quote
- Whether the quote is based on a survey or pictures
- How areas they cannot reach will be recorded
How the visit works
A visit follows the same order every time: protect the area, make the system safe, carry out the AHU cleaning, tidy up and hand over the paperwork. The visit itself 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 Broad Colney and turn up when the site is quiet.
- We agree a shutdown window that suits the building.
- We take before photos of each section of the unit.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- We take after pictures and issue the certificate and report.
Preparing for the visit
- Have your last certificate or report to hand
- Arrange a key holder or contact on site
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
How to get a quote
For AHU cleaning in Broad Colney, call us on 0345 646 2711 or email us. Let us know the site type and the opening hours, and send pictures or your last report if you can. A fixed quote typically follows within one working day.
Related advice
What a clean will not put right
Not every problem is solved by AHU cleaning, and we’ll tell you before work begins. It doesn’t solve:
- Building management system faults
- Ventilation that was badly designed in the first place
- Faulty motors, drives or bearings
If you’re not sure, just give us a ring on 0345 646 2711, or email photos and we will give you a straight answer before you book.
Where we work
- Supply and extract fans
- Heating and cooling coils
- Drain trays
- Internal panels
- Dampers and louvres
- Filter sections
Leave it or put it right?
A light clean now is simpler than a heavy one later. Years of build-up make the job longer and harder, especially where there’s been moisture. Rural sites cannot always move to another kitchen or room when something fails.
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 are not sure what’s needed, ring 0345 646 2711, or email photos for straight advice and a fixed quote.
What you get with us
- Each visit written up, with photos
- We’re fully insured
- A single point of contact for sites across the South East and London
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Also near Broad Colney
Other services in Broad Colney
AHU cleaning in Broad Colney: local notes
Food Standards Agency data includes about 7 schools, colleges and universities and about 4 caring premises (care homes, nurseries and hospitals) within 1.5 miles or so of the middle of Broad Colney. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. About 0.7 miles north-west of Broad Colney is Napsbury Hospital, the nearest hospital. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. About 17 miles out from central London, Broad Colney is part of the South East area we work across. We work evenings, overnight and at weekends, so the visit fits around the site.
If you manage a school such as Saint Bernadette Catholic Primary School, ventilation cleaning is best booked for the holidays.
Broad Colney is about 3 miles south-east of St Albans, in Hertfordshire. We provide AHU cleaning for businesses, landlords and public buildings in Broad Colney and the rest of Hertfordshire. We cover 381 places across Hertfordshire, from busy centres to quieter spots. We also work in London, around 17 miles away.
Our technicians cover all of the AL2 postcode area for AHU cleaning and the streets around it. We also cover the places around Broad Colney: London Colney (1 mile north), Shenleybury (1 mile south-east), Tyttenhanger (2 miles north), Sleapshyde (3 miles north-east) and Colney Heath (3 miles north-east). We also work in nearby towns such as Watford (6 miles south-west), Hemel Hempstead (7 miles west), Stevenage (14 miles north), St Albans (3 miles north-west), Welwyn Garden City (7 miles north-east) and Harpenden (7 miles north).
Around Broad Colney
Locally, jobs take us to businesses close to The White Lion pub and Samuel Ryder Academy and the streets around them. The nearest railway station is Park Street station, roughly 1.9 miles north-west. Other landmarks nearby include Hilfield Castle (4.5 miles south) and Radlett and District Museum (2.5 miles south). Open spaces near Broad Colney include Verulamium Lake and Broad Colney Lakes.