Slough · Air handling unit cleaning
Air handling unit cleaning in Longford, Slough
AHU cleaning across Longford and nearby, timed so the site keeps working and finished with a written report and photos.
- Plant that needs cleaning after a refit
- Fan sections that haven’t been cleaned in years
- Dirty coils holding back the airflow
Questions from Longford
Is Longford in your area for AHU cleaning?
Yes, Longford is within the area we cover across London and the South East. You can call 0345 646 2711 or send us an email and tell us what needs doing.
Can the work in Longford be done at night or at weekends?
Yes, nights and weekends are routine for us. The site is handed back ready to open. Just ring 0345 646 2711 or email us with your opening times and we’ll plan around them.
Is there a report after cleaning?
Yes. Every clean comes with a TR19® certificate and a photo report. They’re worth keeping with the plant records.
Do you survey before quoting?
Yes. We always survey first, from your pictures and details, or with a visit where necessary. Then you get a fixed quote.
How do you keep the site clean during the work?
We cover floors and nearby surfaces with sheeting before we start, and anything we remove is contained. At the end, the area is cleaned down.
How much does AHU cleaning cost in Longford?
Size, condition, access and working hours all affect the cost. Ask us for a fixed quote and we’ll typically reply within one working day.
Will you repair the fan or motor?
Mechanical repairs to the unit are for your HVAC maintenance contractor. We’ll flag anything we notice during the clean.
What do you do with what you remove?
We contain it and take it with us. Grease, debris and waste water are collected as the work goes on rather than letting it spread.
AHU cleaning in Longford, done properly
Units vary a lot in size, age and layout, whether it’s a compact unit in a ceiling void or a big unit on the roof. We look at the unit first, from photos or a site visit, and give you a fixed quote, so you know where you stand. The work covers drain trays, filter sections and supply and extract fans, and people most often call us about air handling units never cleaned inside and leaves and litter drawn into the unit.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
The paperwork matters as much as the work. You get a written report with pictures after every visit, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s to hand when an insurer or inspector asks.
- Where
- Longford (SL3, UB7, TW6)
- Wider area
- Slough
- Reporting
- Report and pictures after the visit
- Price
- A fixed price before work begins
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Nearby places to Longford
What else we do in Longford
Why deal with it now?
Stuffy rooms and stale smells in a building in Longford can sometimes be traced back to the AHU. A clean tackles the source instead of masking it. Our emergency line runs 24/7, but a planned visit to Longford is calmer for everyone.
What you pay reflects the actual work. That is why every job is surveyed first, and why the quote is fixed before we start.
Why book with us
- We diagnose before we treat
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- A single point of contact for sites across the South East and London
- A fixed price before any work starts
When it’s something else
AHU cleaning cannot fix everything, and we’d rather say so up front. It doesn’t solve:
- Dirty ducts beyond the unit itself
- A system that is undersized for the building
- Mechanical faults with motors, belts or bearings
If in doubt, ring 0345 646 2711 or use the quote form and we’ll say what we think before booking.
Where we work
- Supply and extract fans
- Drain trays
- Internal panels
- Filter sections
- Dampers and louvres
- Heating and cooling coils
Keeping the system healthy
Good habits slow the build-up between visits. Our tips:
- Keep filter changes on time and recorded
- Report musty smells from the vents straight away
- Clear leaves and litter away from the intake
- Diary the inspection date recommended in the report
We recommend when the unit should next be inspected or cleaned, based on what we found. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
What staff can safely do
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. That’s our job.
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Do you need AHU cleaning in Longford?
Whatever surrounds a building in Longford, the air drawn into its AHU carries dust, pollen and debris. The intake section and first filters take the brunt, and some travels further into the unit.
The symptoms we’re asked about most are:
- Dust built up on fan impellers
- Condensate trays that will not empty
- Units needing a clean before a new tenant or handover
- Debris and leaves in the fresh air intake
For schools like Pippins School, the holidays are the usual time to inspect and clean ventilation.
Questions to ask before booking
- Proof of insurance
- If they look at the system before pricing
- If the quote is a fixed price or an estimate
- Whether the work can be done while the site is closed
Multi-site and managed buildings
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 on a regular cycle.
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.
AHU cleaning in Longford: local notes
Food Standards Agency data includes about 4 caring premises (care homes, nurseries and hospitals) and about 9 hotels, B&Bs and guest houses within about 1.5 miles of central Longford. Busy, occupied buildings like these are where clean supply air matters most. We cover Longford, about 17 miles from central London, as part of our work across London and the South East. The visit is fixed around your opening hours, not ours. Longford’s nearest hospital, Harlington, is about 2.1 miles north-east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Workplaces around Heathrow Terminal 5 Rail station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts. Hospitals such as Harlington (about 2.1 miles north-east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Longford are no different.
Longford is about 2 miles south-west of West Drayton, in Slough. Whatever kind of site you run in Longford, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Longford is one of 31 places in Slough we cover for AHU cleaning. For sites nearby, see our Guildford page, about 16 miles away.
Postcode districts we cover here for AHU cleaning: SL3, UB7 and TW6. Whether your site is on Wallis Road, Widgeon Road and Stanwell Moor Road or a nearby road, we can help. Longford sits on or near the A3044, so getting to you is simple for evening and night visits. Other places close to Longford include Harmondsworth (1 mile north-east), Stanwell (2 miles south-east), Heathrow (2 miles east), Sipson (2 miles north-east) and West Bedfont (2 miles south-east). Further out, we also cover Slough (6 miles north-west), Cippenham (7 miles north-west), Chalvey (5 miles west), Britwell (7 miles north-west), Langley (3 miles north-west) and Upton (5 miles north-west).
Landmarks near Longford
Typical jobs here are in premises near The Kings Arms and Arthur Jacob Nature Reserve, among other places. The closest station to Longford is Heathrow Terminal 5 Rail station, about 0.5 miles south-east. Other landmarks nearby include Windsor Castle (4.8 miles west) and Harlington (2.1 miles north-east). Not far away are Crane Meadows and Staines Reservoirs.
How it works
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. All we need from you is clear access and the right equipment switched off. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. If the van will struggle with a lane or gateway near Longford, let us know and we will plan around it.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
How to prepare
- Name a contact who can let us in at the agreed time
- Mention any parking or loading restrictions
- Let us know how we reach the system, including roofs, risers and plant rooms
Get a fixed quote
For a fixed quote, call 0345 646 2711, or send details by email with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. You’ll usually have a quote within one working day.