Surrey · Air handling unit cleaning
Air handling unit cleaning in Crowhurst, Surrey
Our technicians work in Crowhurst on cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Fixed quotes, work around your opening hours and photo reports on every job.
- Condensate trays that won’t empty
- Units that have only ever had filter changes
- Debris and leaves in the fresh air intake
AHU cleaning for kitchens and businesses in Crowhurst
All the building’s air passes through the fan, so dirt on the impeller and housing gets spread around. We clean the fan section along with the rest of the unit, with the unit switched off and made safe first. If you are dealing with dirty fans and fan housings and air handling units with blocked filters, we can help.
In rural areas, ventilation units are often in roof voids or outbuildings, which makes them easy to overlook.
The report is your system’s health record: a dated account with pictures of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.
- Location
- Crowhurst (RH7)
- Wider area
- Surrey
- Reporting
- Photo report after every visit
- Quote
- Fixed quote, usually within a working day
- Working hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Managing agents and facilities teams in Crowhurst
Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
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 are happy to quote for all of it.
What your team can do, and what needs us
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
What we do, step by step
Your staff do not need to do much on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Afterwards, the area is left tidy and the written report follows. Somewhere like Crowhurst, lanes, gates and parking are worth mentioning in advance.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- 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.
Preparing for the visit
- Tell us the best time to work, such as after service or at a weekend
- Clear loose items from the work area
- Arrange a key holder or contact on site
Get a fixed quote
Some systems can be priced from photos; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before work begins.
Advice
How the job changes from site to site
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. A clean fan runs more smoothly.
Filters
Dirty filters cut airflow and let dirt slip past their frames. The filter section is cleaned so new or cleaned filters sit properly.
Questions from Crowhurst
Do you offer AHU cleaning in Crowhurst?
Yes, we work in Crowhurst and the places around it. To start, phone us on 0345 646 2711 or use the quote form with a few photos of the system.
Can you get to a site in Crowhurst?
Yes, we work in villages as well as towns, and Crowhurst is covered. Let us know about access, parking and anything unusual about getting there when you book.
Are you fully insured?
Yes, we are fully insured. CHAS and SafeContractor accreditation sit alongside it for clients who vet their contractors.
How much notice should we give?
Earlier is better, particularly for night and weekend visits. We usually quote within one working day, and there’s a 24/7 line for emergencies.
How long does it take to clean an air handling unit?
It takes a single shift for a typical unit, longer for large or heavily soiled ones. Size, layout and how dirty it is decide the rest, and the quote will give you a clear idea.
Do you need to switch the unit off?
Yes. The fan must be stopped and the unit isolated, so we plan it for a time that suits the building.
What information do you need?
A short description and a few pictures plus the address and your hours. If we need more, we will ask.
What accreditations do you have?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
Fixed quotes for AHU cleaning in Crowhurst
The diagnosis comes before the price. The main factors are:
- Whether several sites go on one quote
- Working hours and out-of-hours timing
- Site rules, permits and inductions
- The size of the system
What you pay depends on how big the system is, the condition it’s in and how easy it is to reach. We give you a fixed price before we start, so you know where you stand.
Asking for a quote
To help us quote quickly, send us:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Wide pictures of the system and the area around it
- Your last certificate, test record or report
- Where the site is and what kind of site it is
For a fixed quote, phone us on 0345 646 2711 or drop us a line and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. We typically come back within one working day.
When to call us in Crowhurst
Most units live out of sight on roofs, in plant rooms or in ceiling voids and are rarely seen by anyone but maintenance staff. Months can pass without anyone looking inside.
The symptoms we are asked about most are:
- Drain trays holding standing water
- Dust-coated heating and cooling coils
- Odours coming through the supply air
- Units needing a clean before a new tenant or handover
Healthcare ventilation, from large hospitals like Foetal Alcohol Spectrum Disorders Clinic (about 3.4 miles north) to small clinics, depends on clean filters, coils and ducts.
Comparing quotes
- Exactly which parts of the system are covered
- What records you will receive afterwards
- If they look at the system before pricing
- When they can work, and whether that’s outside your opening hours
Towns and villages near Crowhurst
Other services in Crowhurst
Ventilation in Crowhurst buildings
The nearest hospital to Crowhurst is Foetal Alcohol Spectrum Disorders Clinic, about 3.4 miles north. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. We cover Crowhurst, about 20 miles from central London, as part of our work across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site.
In Crowhurst, we look inside the system before deciding what needs cleaning.
Crowhurst is about 6 miles north of East Grinstead, in Surrey. Whatever kind of site you run in Crowhurst, AHU cleaning is something we can help with. We can work out of hours so trading is not interrupted. We cover 395 places across Surrey, large and small. London is in our area too, around 20 miles away.
Here we cover the RH7 postcode area for AHU cleaning. Other places close to Crowhurst include Crowhurst Lane End (1 mile north-west), Merle Common (1 mile north-east), South Godstone (2 miles north-west), Troy Town (2 miles east) and Tandridge (2 miles north-west). Further out, we also cover Epsom (14 miles north-west), Horley (7 miles west), Redhill (7 miles west), Ewell (15 miles north-west), Reigate (8 miles west) and Caterham (6 miles north-west).
Landmarks near Crowhurst
For rail, the closest station is Godstone station, roughly 1.9 miles west of the centre. Nearby you’ll also find Haxted Watermill Museum (2.1 miles south-east) and Bletchingley Castle (4.7 miles north-west). For a walk, there’s Hedgecourt Lake and Botley Hill.
When something else is needed
It’s worth knowing the limits before booking:
- Controls and BMS settings that run the unit
- Airflow problems caused by the system’s design
- Mechanical faults with motors, belts or bearings
Not sure which it is? You can give us a ring on 0345 646 2711 or use the quote form and we’ll tell you honestly.
What the work covers
- Drain trays
- Dampers and louvres
- Internal panels
- Supply and extract fans
- Heating and cooling coils
- Filter sections