Surrey · Air handling unit cleaning
Outwood AHU cleaning
Specialist AHU cleaning for Outwood: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Fan sections that haven’t been cleaned in years
- Air handling units with blocked filters
- Drain trays holding standing water
Common questions in Outwood
Do you work in villages like Outwood?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
Do you cover Outwood for AHU cleaning?
Yes, we work in Outwood and the places around it. You can phone us on 0345 646 2711, or send details by email and tell us what needs doing.
Do you offer maintenance contracts?
Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.
How much does AHU cleaning cost?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. We fix the price before any work starts.
Can you clean the AHU out of hours?
Yes. We time the work to fit the building’s hours. In hospitals and care homes, we agree timings with the site team.
Can one contract cover all our sites?
Yes. You deal with one contact for every site across London and the South East, and visits can be set on a regular cycle.
Will the ventilation be off while you clean?
Yes. The fan must be stopped and the unit isolated, so we plan it for a time that suits the building.
Which accreditations do you hold?
Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
AHU cleaning for kitchens and businesses in Outwood
No two plant rooms are the same, 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 internal panels, filter sections and supply and extract fans, and common reasons people get in touch are plant that has been serviced but not cleaned and units needing a clean before a new tenant or handover.
Work in a small place like Outwood starts with agreeing access and timings.
It’s worth checking any contractor’s accreditations. We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Where
- Outwood (RH1)
- Wider area
- Surrey
- Paperwork
- Report and pictures after the visit
- Quote
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Checked
- 30 October 2026

What happens if it’s left?
Standing water in a drain tray doesn’t clear itself. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Dealing with it early keeps the clean straightforward. A planned visit to Outwood is easier to arrange than an emergency callout.
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Why book with us
- A single point of contact for sites across the South East and London
- Work around your opening hours, with 24/7 emergency cover
- Every job surveyed first
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
See how cleaning jobs are priced and how to check a contractor.
Towns and villages near Outwood
Other services in Outwood
When to call us in Outwood
Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. Months can pass without anyone looking inside.
These are the problems we see most often:
- Dirty fans and fan housings
- Plant that has been serviced but not cleaned
- Dirty filters cutting the airflow
- Stale or musty smells from the ventilation
East Surrey Hospital, about 2.9 miles north-west, is the nearest hospital to Outwood, and healthcare sites of every size need their supply air kept clean.
Questions to ask before booking
- Whether they’re fully insured
- What paperwork you get at the end
- Whether the work can be done while the site is closed
- If they look at the system before pricing
What affects the cost of AHU cleaning
We do not publish a price list, because no two systems are the same. The quote depends on:
- The scale of the work
- Where the site is and how we reach it
- The condition we find in the survey
- One-off work versus a regular cycle
You won’t find a price list here, because the cost depends on the site in front of us. Call for a fixed quote, and we’ll talk you through it.
What we need to know
The more you tell us, the more accurate the quote. When you get in touch, it helps to send:
- The paperwork from the last visit, if you have it
- How we’d reach plant on a roof or in a plant room
- When the site is open and when it’s quiet
- The site address and the type of premises
If you need AHU cleaning in Outwood, ring 0345 646 2711 or use the quote form. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. We typically send a fixed quote within one working day.
What a clean will not put right
A few issues sit outside what this work can do:
- Coils that are corroded or leaking and need replacing
- Dirty ducts beyond the unit itself
- Breakdowns that need a mechanical engineer
If in doubt, phone us on 0345 646 2711 or email us and we will say what we think.
Where we work
- Internal panels
- Heating and cooling coils
- Filter sections
- Dampers and louvres
- Drain trays
- Supply and extract fans
Keeping the system healthy
Here’s the after-treatment advice, short and simple:
- Flag stale or damp smells in the supply air
- File each AHU report in the maintenance log
- Report water on the plant room floor
- Keep filter changes on time and recorded
When we have closed the unit up, it can be restarted with your site team. Keep an eye on the condensate drain over the next few days to confirm water is draining away.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air instead of leaving it to guesswork.
What we do, step by step
We start by comparing what we find with the survey or your pictures. If anything is different, we talk it through with the person on site before carrying on. From there, it takes from a few hours for a compact unit to a day or more for a large one. For a village or hamlet like Outwood, tell us about narrow lanes, gates and parking when you book.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Let us know about parking and loading
- Arrange a key holder or contact on site
- Find the previous report, if there is one
How to get a quote
Quoting starts with a diagnosis, either from photos and details you send or from a site visit. After that, you get a fixed price for the work, before work begins.
Read more
In-house cleaning or a specialist?
Keep a record of what your team does. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, alongside our reports.
Staff cleaning and specialist work aren’t the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Ventilation in Outwood buildings
The nearest hospital to Outwood is East Surrey Hospital, about 2.9 miles north-west. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. At about 21 miles from central London, Outwood sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site.
For schools like Oakwood School, the holidays are the usual time to inspect and clean ventilation.
Outwood is about 3 miles east of Horley, in Surrey. For AHU cleaning in and around Outwood, please phone us on 0345 646 2711, or email photos for a fixed quote. We work across South East England and London, Outwood included. 395 places in Surrey are on our list, from busy centres to quieter spots. There’s also a page for Guildford, about 20 miles away.
Postcode districts we cover here for AHU cleaning: RH1. If you need AHU cleaning at premises on Miller's Lane, Bellwether Lane and Scott's Hill or anywhere close by, we can help. If your site is just outside Outwood, we cover Smallfield (1 mile south), Horley (3 miles west), Burstow (3 miles south), Fernhill (3 miles south-west) and Keeper's Corner (3 miles south). We also work in nearby towns such as Epsom (12 miles north-west), Redhill (4 miles north-west), Ewell (13 miles north-west), Reigate (5 miles north-west), Caterham (7 miles north) and Dorking (10 miles west).
Near you in Outwood
Typical jobs here are in premises near The Castle pub. For rail, the closest station is Salfords station, roughly 2.2 miles west of the centre. Other landmarks nearby include Effingham Park Motor Museum (3.7 miles south) and East Surrey Hospital (2.9 miles north-west). For a walk, there’s Bay Pond and Hedgecourt Lake.