Essex · Air handling unit cleaning
Pilgrims Hatch AHU cleaning
Air handling unit cleaning for businesses, landlords and public buildings in Pilgrims Hatch. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Leaves and litter drawn into the unit
- Plant that has been serviced but not cleaned
- Dirty coils holding back the airflow
What affects the cost of AHU cleaning
We quote each job individually. This is what makes a difference:
- Where the site is and how we reach it
- The condition we find in the survey
- How easy every part is to reach
- The size of the system
When the work has to happen, how we reach it and how big the site is all affect the cost. We take each of them into account and give you a fixed price before we start.
What we need to know
Photos let us diagnose from a distance. Try to include:
- Problems your staff have spotted
- The postcode and the type of business
- A few general shots of the system
- Any previous report or certificate
Need a price for AHU cleaning? Please ring 0345 646 2711, or email photos and tell us about the site. We will talk you through the work and give you a fixed quote before you commit to anything.
AHU cleaning in Pilgrims Hatch
Coils are where a lot of the dirt ends up. A coated coil restricts airflow and makes the unit work harder. We clean coils with methods suited to their condition, taking care not to damage the fins. The work covers drain trays, supply and extract fans and heating and cooling coils, and the jobs we see most are stale or musty smells from the ventilation and units that have only ever had filter changes.
Smaller buildings around Pilgrims Hatch often keep their ventilation units in a roof void or plant cupboard, out of sight and easy to overlook. Filters, coils and drain trays need attention whatever the size of the unit.
Nothing is signed off by word of mouth: a written report, dated and illustrated with photos, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Location
- Pilgrims Hatch (CM15, CM14)
- Wider area
- Essex
- Records
- Written report with photos
- Quote
- A fixed quote up front
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What AHU cleaning cannot fix
Some problems need a different service or another trade:
- Ventilation that was badly designed in the first place
- Damaged coils beyond cleaning
- Breakdowns that need a mechanical engineer
If in doubt, phone us on 0345 646 2711 or email us and we’ll say what we think before booking.
What the work covers
- Dampers and louvres
- Drain trays
- Internal panels
- Supply and extract fans
- Filter sections
- Heating and cooling coils
Between visits
Results last longer with the right care. We suggest:
- Don’t store bins or materials near the intake
- Report water on the plant room floor
- Check the drain tray is emptying during routine visits
- Keep inspection doors on the unit in good order
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air, rather than waiting for a problem.
FAQs for Pilgrims Hatch
Do you work overnight in Pilgrims Hatch?
Yes, we can come after you close and finish before you open. It means the site in Pilgrims Hatch keeps running as normal. Let us know the hours you are closed and we’ll book within them.
Can you get to a site in Pilgrims Hatch?
Yes, Pilgrims Hatch is part of our area, however small the site. The journey is planned ahead, so a few details about the route help.
Which kinds of sites do you work on?
All kinds of commercial and public premises: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. Work is timed around how each site runs.
Do you do ventilation duct cleaning too?
Yes. Ductwork is cleaned through access panels, with anything inaccessible recorded, with new panels fitted where needed.
How long does an AHU clean take?
The work takes a single shift for a typical unit, longer for large or heavily soiled ones. Large plant can be split over several shifts, and you can give us a ring on 0345 646 2711, or send details by email to plan it.
Can you come out in an emergency?
Yes. There’s a 24/7 emergency line for anything that can’t wait until a planned visit. Call us any time and explain what’s happened.
Are you fully insured?
Yes, fully. We also hold CHAS and SafeContractor, for sites that check contractor safety.
What happens to the waste?
It leaves the site with us when we go. During the work, it’s contained so the area stays clean.
When to call us in Pilgrims Hatch
Whatever surrounds a building in Pilgrims Hatch, 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.
If you notice any of these, it’s worth a diagnosis:
- Rooms that smell stuffy when the system runs
- Dirty coils holding back the airflow
- Air handling units due a clean after building work
- Dirty fans and fan housings
Hospitals such as Brentwood Community Hospital (about 1.4 miles south-east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Pilgrims Hatch are no different.
What your quote should include
- Whether they’re fully insured
- How areas they cannot reach will be recorded
- Whether they recommend a next date
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
How the job changes from site to site
Heating and cooling coils
Coil fins are close together and catch the dust the filters miss. They’re cleaned using methods that won’t bend or flatten the fins.
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. We clean the intake and first stage of filters along with the rest.
How it works
Every visit runs to the same pattern: sheeting and protection first, isolate whatever needs isolating, do the work, tidy up and hand over the paperwork. The visit itself takes from a few hours for a compact unit to a day or more for a large one. A site near Pilgrims Hatch typically has room to park, so the questions are about access to the system and your hours.
- We start with a survey of the unit and a fixed quote for the work.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- We clean out the drain tray and make sure it drains.
- A TR19® certificate and photo report follow the clean.
How to prepare
- Clear the space around the work
- Tell us the best time to work, such as after service or at a weekend
- Find the previous report, if there is one
Get a fixed quote
There’s no standard price list, because every site is different. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To start, call us on 0345 646 2711, or email photos.
Advice
Why act early in Pilgrims Hatch
Stuffy rooms and stale smells in a building in Pilgrims Hatch can sometimes be traced back to the AHU. Cleaning it deals with the cause rather than the symptom. Systems on quieter sites still build up dirt and wear, just more slowly.
What you pay depends on the size of the system, what state it’s in and access to every part of it. We give you a fixed price before any work starts, so there are no surprises.
Why book with us
- Fully insured
- Work around your opening hours, with 24/7 emergency cover
- We diagnose before we treat
- One number for every site across the South East and London
Also near Pilgrims Hatch
Other services in Pilgrims Hatch
Ventilation in Pilgrims Hatch buildings
Food Standards Agency records list about 8 schools, colleges and universities and about 12 caring premises (care homes, nurseries and hospitals) registered as food businesses across Pilgrims Hatch 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. About 1.4 miles south-east of Pilgrims Hatch is Brentwood Community Hospital, the nearest hospital. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. Pilgrims Hatch is about 19 miles from central London, well within the area we cover across London and the South East. Evening, overnight and weekend visits are all possible.
Wherever a school like Larchwood Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Pilgrims Hatch is about 1 mile north-west of Brentwood, in Essex. Wherever you are in the CM15 postcode area, we can take on AHU cleaning. Pilgrims Hatch is one of 644 towns, villages and districts in Essex we cover for commercial clients. We also work in Chelmsford, around 11 miles away.
We cover every part of the CM15 and CM14 postcode area for AHU cleaning and the roads nearby. You will find streets such as Ongar Road, Hatch Road and Green Lane, all of which we cover for AHU cleaning. We also cover the places around Pilgrims Hatch: Crow Green (1 mile north), South Weald (1 mile south-west), Coxtie Green (1 mile west), Bentley (1 mile north-west) and Doddinghurst Common (2 miles north-west). Larger places within reach include Chelmsford (11 miles north-east), Basildon (8 miles south-east), Harlow (12 miles north-west), Canvey Island (15 miles south-east), Billericay (6 miles east) and Rayleigh (14 miles east).
Near you in Pilgrims Hatch
Locally, jobs take us to businesses close to Black Horse Inn, Sawyers Hall College and Weald Country Park and the streets around them. The closest station to Pilgrims Hatch is Brentwood station, roughly 1.6 miles south of the centre. Other landmarks nearby include Brentwood Community Hospital (1.4 miles south-east). The countryside around Pilgrims Hatch includes Thorndon Park.