Surrey · Air handling unit cleaning
Air handling unit cleaning in Blackheath, Surrey
We cover Blackheath for air handling unit cleaning. Fixed quotes, work around your opening hours and photo reports as standard.
- Blocked condensate drains and slimy trays
- Debris and leaves in the fresh air intake
- Units that have only ever had filter changes
Different parts, different methods
Rooftop and plant room units
Ceiling-mounted and compact units are cleaned too. The space underneath is protected with sheeting first.
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. The impeller, its housing and the fan chamber are cleaned.
AHU cleaning in Blackheath
We clean the parts of the unit where dirt and moisture gather: filters, coils, drain trays, fans and the internal panels. You get a TR19® certificate and a photo report showing the unit before and after. Typical jobs include dust-coated heating and cooling coils and stale or musty smells from the ventilation, on heating and cooling coils, supply and extract fans and internal panels.
Work in a small place like Blackheath starts with agreeing access and timings, and the ventilation is inspected, cleaned and recorded the same as anywhere.
We’re CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’ve been trading since 2009.
- Place
- Blackheath (GU4)
- Region
- Surrey
- Paperwork
- Photo report after every visit
- Quote
- A fixed quote up front
- Hours
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
For landlords and multi-site operators
Facilities teams in offices, schools and healthcare sites book us too across Surrey. Work can be phased by floor, building or site around the people who use them.
Keeping records across a portfolio is half the battle. Each visit ends with a dated report and pictures, so you can show an insurer or inspector what was done at each site.
The process
Before we leave, we walk the area with whoever is on site. Anything we couldn’t reach or that needs attention is pointed out there and then, and the same goes into the written report. The visit takes a single shift for a typical unit, longer for large or heavily soiled ones. Rural roads and tight entrances are worth telling us about before a visit to Blackheath.
- First we agree when the unit can be switched off, including evenings or weekends.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- We finish with the fan section and the drain tray.
- After photos are taken and the certificate issued.
How to prepare
- Tell us the best time to work, such as after service or at a weekend
- Tell us where we can park and unload
- Clear loose items from the work area
How to get a quote
Want a quote for AHU cleaning? Please give us a ring on 0345 646 2711, or send details by email and tell us about the site. We’ll talk you through the work and give you a fixed quote before you commit to anything.
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What AHU cleaning looks like in Blackheath
There are about 7 schools, colleges and universities on the FSA’s food hygiene register in Blackheath and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Blackheath is about 27 miles from central London, well within the area we cover across London and the South East. Evening, overnight and weekend visits are all possible. For Blackheath, the closest hospital is St. Luke’s Hospital, roughly 2.6 miles north-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
If you manage shops or offices close to Chilworth station, a TR19® Air inspection shows whether the ductwork needs cleaning. For schools like Chilworth CofE (Aided) Infant School, the holidays are the usual time to inspect and clean ventilation.
Blackheath is about 4 miles south-east of Guildford, in Surrey. Sites in Blackheath get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where needed and a written report with pictures. Blackheath is one of 395 towns, villages and districts in Surrey where we work for AHU cleaning.
We work across the GU4 postcode area for AHU cleaning and the streets around it. We also cover Chilworth (1 mile north-west), East Shalford (2 miles north-west), Shalford (2 miles west), Broadford (2 miles west) and Peasmarsh (3 miles west). We also work in nearby towns such as Guildford (4 miles north-west), Woking (8 miles north), Camberley (13 miles north-west), Epsom (14 miles north-east), Horley (15 miles east) and Farnham (12 miles west).
Around Blackheath
Locally, jobs take us to businesses close to The Percy Arms and the streets around them. The closest station to Blackheath is Chilworth station, about 0.6 miles north. Other landmarks nearby include Guildford Castle (2.9 miles north-west) and Shere Museum (2.8 miles east). Open spaces near Blackheath include St Martha's Hill and St Martha's Hill and Colyer's Hanger.
Other services in Blackheath
When something else is needed
A few issues sit outside what this work can do:
- Controls and BMS settings that run the unit
- Airflow problems caused by the system’s design
- Mechanical faults with motors, belts or bearings
If you are not sure, just give us a ring on 0345 646 2711 or drop us a line and we will give you a straight answer.
Where we work
- Drain trays
- Heating and cooling coils
- Supply and extract fans
- Filter sections
- Dampers and louvres
- Internal panels
Common problems we fix in Blackheath
Filters catch most of the dust, but not all of it. What gets through settles on coils, fans and the inside of the casing, building up layer by layer.
These are the problems we see most often:
- Dirty filters cutting the airflow
- Odours coming through the supply air
- Dust built up on fan impellers
- Plant that needs cleaning after a refit
St. Luke’s Hospital, about 2.6 miles north-west, is the nearest hospital to Blackheath, and healthcare sites of every size need their supply air kept clean.
What to look for in a quote
- What records you’ll receive afterwards
- Proof of accreditation you can verify
- Whether a survey comes first
- When the next visit should be, and why
What affects the cost of AHU cleaning
There’s no set price list, because sites vary so much. What we look at:
- The condition we find in the survey
- Whether it’s a one-off visit or part of a schedule
- Whether several sites go on one quote
- How big the system is
Working hours, access and the scale of the site can all change the price. We take each of them into account and give you a fixed price before any work starts.
Asking for a quote
When you call or email, it’s useful to have:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Your opening hours and when the area is out of use
- Close-ups of filters, grilles, hatches or access panels
- The paperwork from the last visit, if you have it
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
Questions from Blackheath
Can you work in Blackheath outside opening hours?
Yes, nights and weekends are routine for us. The work in Blackheath can fit around your hours. Tell us your opening hours when you ask for a quote.
Can ventilation in schools around Blackheath be cleaned out of term?
Yes, holiday work suits schools best. There are about 7 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Blackheath. You can ring 0345 646 2711 or email us with the dates the site is empty.
How much notice should we give?
Earlier is better, especially for out-of-hours work. Quotes typically come back within one working day, and there’s a 24/7 line for emergencies.
How do you protect the area?
By covering it before any work starts. The work is kept contained and leave the area clean.
Can you fix a faulty AHU?
The clean includes noting faults, but repairs sit with your maintenance contractor, with photos where it helps.
How much does AHU cleaning cost in Blackheath?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. You get a fixed price before we start.
What is TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.
Can you set up regular visits?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.
Why it’s worth doing now in Blackheath
Leave an AHU uncleaned and the dirt doesn’t stay put. It moves on into the ductwork and out into the rooms, so cleaning the ducts without the unit only goes so far. It’s worth booking a check, because nobody sees inside a duct day to day.
What you pay reflects the actual work. That’s why we survey first, from photos or on site, and the price is agreed before we start.
Why us?
- We are fully insured
- A fixed price before any work starts
- Each visit written up, with photos
- One contact for all your sites in London and the South East
Read what affects the cost and our accreditations and certificates.