Greater London · Air handling unit cleaning
Air handling unit cleaning in Bexleyheath, Greater London
AHU cleaning for Bexleyheath and the surrounding area: diagnosis first, then a fixed quote, the work and a report with photos. Call for a fixed quote.
- Fan sections that haven’t been cleaned in years
- Coils clogged with dust and debris
- Plant that has been serviced but not cleaned
How we handle AHU cleaning in Bexleyheath
The fan pushes every bit of air in the system, so dirt on the impeller and housing gets spread around. Fan, housing and the surrounding panels are cleaned as part of the job, with the unit switched off and made safe first. The work covers supply and extract fans, drain trays and heating and cooling coils, and common reasons people get in touch are rooms that smell stuffy when the system runs and air handling units with blocked filters.
In London, plant rooms are often in basements or on roofs reached through occupied floors, so work in Bexleyheath is often done in the evening or at weekends. Parking and loading are agreed with the building in advance.
The paperwork matters as much as the work. You get a written report with pictures after each visit, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Location
- Bexleyheath (DA7, DA6, DA16)
- Wider area
- Greater London
- Records
- Written report with pictures
- Quotes
- Fixed quote, usually within a working day
- Hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Looking after it afterwards
Results last longer with the right care. We suggest:
- Look at the condensate drain whenever the unit is serviced
- Do not ignore odours coming through the grilles
- Diary the inspection date recommended in the report
- Report water on the plant room floor
Stick to the filter change schedule, as that does more than anything to keep the unit clean. Record each change in the maintenance log.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.
Other services in Bexleyheath
Why deal with it now?
Standing water in a drain tray doesn’t clear itself. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Clearing it now is a much smaller job. Every month a London system goes without attention adds to what has to be done later.
When the work has to happen, how we reach it and how big the site is can all change the price. Each of those is built into the quote, and the price is fixed before any work starts.
Why choose Duct Doctor in Bexleyheath
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fixed quotes from a survey or photos
- A written report with pictures after each visit
- We’re fully insured
What affects the cost of AHU cleaning
Before we fix a price, we need to know a few things. We look at:
- Site requirements such as sign-in and permits
- Whether we need access equipment or extra panels
- Whether it’s a one-off visit or part of a schedule
- The scale of the work
Several systems or sites on one quote can make for a more efficient booking. Tell us about everything you’d like looked at, and you will get one fixed quote.
Helping us quote
There’s no need for technical detail. Just send:
- The roof, plant room or outside wall the system runs to
- Detail shots of panels, filters and grilles
- When the site is open and when it’s quiet
- The paperwork from the last visit, if you have it
Quoting starts with a diagnosis, from your photos and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work, before any work starts.
AHU cleaning in Bexleyheath: local notes
Going by the FSA’s register, there are about 32 schools, colleges and universities, about 61 hospitals, care homes and childcare premises and about 4 hotels and guest houses serving food across Bexleyheath and its immediate surroundings (about a mile and a half). Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Getting kit to a London plant room normally means lifts, stairs and an agreed loading slot. For Bexleyheath, the closest hospital is Bexley Hospital, roughly under half a mile west. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
If you run a surgery, dental practice or care home near Bexleyheath, clean ventilation matters as much to you as to a hospital like Bexley Hospital (about within half a mile west). If you run an office near Bexleyheath station, its supply ductwork can gather dust for years before anyone looks inside.
Bexleyheath is about 3 miles south-east of Plumstead, in Greater London. We provide AHU cleaning for commercial premises of every kind in Bexleyheath and the rest of Greater London. Bexleyheath is one of 764 places in Greater London we cover for AHU cleaning. London is in our area too, around 10 miles away.
Work in DA7, DA6 and DA16 is surveyed, quoted and booked the same way as anywhere else. AHU cleaning is available to premises on Lion Road, Hyde Road and Upton Road and the roads around them. Nearby, we also carry out AHU cleaning in Upton (1 mile west), Crook Log (1 mile west), Blendon (1 mile south-west), Bexley (1 mile south) and Welling (1 mile west). We also work in nearby towns such as London (10 miles west), City of Westminster (13 miles west), Marylebone (13 miles west), Kensington (15 miles west), St Pancras (12 miles north-west) and Shoreditch (10 miles north-west).
Local landmarks in Bexleyheath
Typical jobs here are in premises near Danson Park, The Volunteer pub and Bexleyheath Academy and the streets around them. There’s a railway station in Bexleyheath itself: Bexleyheath station. Nearby you’ll also find Bexley Hospital (within half a mile west) and Bexley Museum (1.2 miles south-east). Green spaces nearby include Summer Hill and Wansunt Pit.
Bexleyheath: your questions answered
Can you come to Bexleyheath after we close?
Yes, we can come after you close and finish before you open. It means the site in Bexleyheath keeps running as normal. When you call us on 0345 646 2711, or send details by email, mention when the site is quiet.
Can a school’s ventilation in Bexleyheath be done out of term time?
Yes, out-of-term visits are normal for schools. With about 32 schools and colleges on the FSA’s register within roughly a mile and a half of Bexleyheath, it pays to plan holiday dates ahead. Booking early in the term gives the best choice of holiday dates.
What do you need from me for a quote?
A short description and a few photos, with the address and opening hours. We will ask for anything else we need.
Do you give a certificate after the clean?
Yes, a TR19® certificate and a photo report. It includes a recommended date for the next check.
Do you do ventilation duct cleaning too?
Yes, the ductwork, grilles and diffusers the unit serves. We’ll tell you after the survey whether the ducts need it.
What do you clean inside the unit?
The main parts are the filters, coils, drain tray, fan and inside of the casing. We confirm the scope after looking at the unit.
Do you repair air handling units?
AHU cleaning is what we offer here, not mechanical repairs. Any faults we notice are recorded for your maintenance team to follow up.
How often do AHUs need cleaning?
Inspection under TR19® Air decides it. A hard-working unit, or one serving a hospital or care home, may need cleaning more often.
When to call us in Bexleyheath
Mechanical servicing keeps a unit running, but it does not always include cleaning the inside. That means a unit can tick every service box and still be carrying years of dirt.
Any of these means the system needs a check-up:
- Air handling units with blocked filters
- Plant that needs cleaning after a refit
- Air handling units never cleaned inside
- Dirty fans and fan housings
School buildings such as Upland Primary School are typically done in the holidays, so classrooms aren’t disturbed.
What to look for in a quote
- What insurance they carry
- Whether the price is fixed
- Whether the quote shows VAT
- When they can work, and whether that’s outside your opening hours
What happens on the day
The first job on site is protection: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. It takes anything from half a day for one small unit to several shifts for a plant room full of them, and we clear up before we go. Loading bays, visitor permits and roof access are the first things we ask about for a site in Bexleyheath.
- First we agree when the unit can be switched off, including evenings or weekends.
- 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.
How to prepare
- Let us know how we reach the system, including roofs, risers and plant rooms
- Mention any parking or loading restrictions
- Have your last certificate or report to hand
How to get a quote
We do not publish a price list, because no two systems are the same. Instead, we look at your site first, from pictures or a survey, and then send you a fixed quote. To start, ring 0345 646 2711 or email us.
Advice
How the job changes from site to site
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. We clean them with care so the fins aren’t damaged.
Filters
Filters are the first line of defence in the unit. As part of the clean, filters are checked and cleaned or replaced as agreed, and clean the filter housing.
What your team can do, and what needs us
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.