Surrey · Air handling unit cleaning

AHU Cleaning in Shellwood Cross

AHU cleaning in Shellwood Cross, surveyed first and signed off with a written report and pictures. Call for a fixed quote.

  • Debris and leaves in the fresh air intake
  • Plant that needs cleaning after a refit
  • Blocked condensate drains and slimy trays

AHU cleaning for sites in Shellwood Cross

How the job changes from site to site

Internal casing and panels

Dust settles on every internal surface of the unit. Each section is cleaned from the intake through to the outlet.

Heating and cooling coils

A dirty coil holds back the air and makes heating and cooling less effective. Cleaning restores the open path through the fins.

AHU cleaning in Shellwood Cross, done properly

We clean the parts of the unit where dirt and moisture gather: the filter section, heating and cooling coils, drain trays, fan and casing. Every clean comes with a TR19® certificate and before and after photos in a report. We’re often asked to deal with air handling units never cleaned inside and stale or musty smells from the ventilation, on heating and cooling coils, drain trays and supply and extract fans.

In a village or hamlet like Shellwood Cross, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.

The paperwork matters as much as the work. You get a written report with pictures after every visit, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.

Inside an extract duct: heavy deposits on the left, cleaned metal on the right
Location
Shellwood Cross (RH2)
Region
Surrey
Records
Written report with pictures
Price
A fixed price before we start
Working hours
After hours by arrangement; emergencies any time
Telephone
0345 646 2711
Last updated
30 October 2026

Shellwood Cross buildings and their air

About 22 miles out from central London, Shellwood Cross is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you. About 4.8 miles east of Shellwood Cross is East Surrey Hospital, the nearest hospital. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.

If you run a surgery, dental practice or care home near Shellwood Cross, clean ventilation matters as much to you as to a hospital like East Surrey Hospital (about 4.8 miles east).

Shellwood Cross is about 3 miles south-east of Dorking, in Surrey. From the centre of Shellwood Cross to the outskirts, AHU cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Across Surrey, we cover 395 places, Shellwood Cross among them. You can also see our page for Guildford, roughly 14 miles from Shellwood Cross.

Work in RH2 follows the same survey, fixed quote and written report as everywhere else we cover. We also cover Parkgate (1 mile south), Nalderswood (1 mile east), Newdigate (2 miles south), Norwood Hill (2 miles south-east) and Cudworth (2 miles south). We also work in nearby towns such as Guildford (14 miles west), Woking (15 miles north-west), Epsom (10 miles north), Horley (5 miles east), Redhill (5 miles north-east) and Ewell (11 miles north).

Near you in Shellwood Cross

We work in commercial kitchens and buildings around Newdigate Brickworks and the streets around them. Shellwood Cross’s nearest station is Holmwood station, about 2.5 miles south-west. A little further out are Reigate Priory Museum (3.8 miles north-east) and East Surrey Hospital (4.8 miles east). For a walk, there’s Box Hill and Reigate Heath.

Map of Shellwood Cross © OpenStreetMap contributors

Managing agents and facilities teams in Shellwood Cross

Keeping records across a portfolio is half the battle. Each visit ends with a dated report and pictures, ready to show insurers, fire officers or EHOs.

Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.

What affects the quote in Shellwood Cross

Sites vary more than people expect. What affects the quote:

  • One-off work versus a regular cycle
  • The condition of the system
  • Working hours and out-of-hours timing
  • Where the site is and how we reach it

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.

What we need to know

The more you tell us, the more accurate the quote. When you get in touch, it helps to send:

  • Your opening hours and when the area is out of use
  • Anything you’ve noticed, such as smells, noise, drips or poor airflow
  • Close-ups of filters, grilles, hatches or access panels
  • Where the plant sits or the system leaves the building, such as a roof or outside wall

Here’s what helps us quote: the address, the type of site and when it’s open, a few photos and any previous report or certificate. Once you have those, call 0345 646 2711 or use the quote form.

Staff cleaning versus specialist work

Staff cleaning doesn’t replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.

Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they don’t reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.

Common problems we fix in Shellwood Cross

Whatever surrounds a building in Shellwood Cross, 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.

Clients normally contact us when they notice one of these:

  • Dirty coils holding back the airflow
  • Air handling units with blocked filters
  • Debris and leaves in the fresh air intake
  • Stale or musty smells from the ventilation

In Shellwood Cross, we look inside the system before deciding what needs cleaning.

Comparing quotes

  • Whether a survey comes first
  • Exactly which parts of the system are covered
  • What hours they’ll be on site
  • How areas they can’t reach will be recorded

Our hiring checklist

The process

When we arrive, we check the system against the survey or the pictures you sent. Anything unexpected is raised with you before we go further. After that, the work takes one overnight shift for many single units, with bigger plant phased. Pictures of the system and its access let us plan the work in Shellwood Cross before we set off.

  1. We agree a shutdown window that suits the building.
  2. Before cleaning, each section is photographed.
  3. Filters, coils and internal surfaces are cleaned from intake to discharge.
  4. The fan and drain tray are cleaned and the drain checked.
  5. After photos are taken and the certificate issued.

Preparing for the visit

  • Arrange a key holder or contact on site
  • Let us know how we reach the system, including roofs, risers and plant rooms
  • Let us know about parking and loading

Get a fixed quote

For a fixed quote, phone us on 0345 646 2711, or send details by email 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.

Get a price

Related advice

FAQs for Shellwood Cross

Can you do AHU cleaning in Shellwood Cross?

Yes, Shellwood Cross is covered. Just call us on 0345 646 2711 or send us an email with a few details of the site.

Can the work in Shellwood Cross be done at night or at weekends?

Yes, out-of-hours work is a big part of what we do. That way a site in Shellwood Cross doesn’t have to lose a day’s trading. Just give us a ring on 0345 646 2711 or use the quote form with your opening times and we will plan around them.

What accreditations do you have?

We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.

Which kinds of sites do you work on?

Any commercial site with kitchens or ventilation, from a single café to a large school. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.

Will you repair the fan or motor?

AHU cleaning is what we offer here, not mechanical repairs. Any faults we notice are recorded for your maintenance team to follow up.

Do you look at the system first?

Yes, every time. We diagnose before we treat: the survey tells us what the system needs and how to reach it and the fixed quote is built on it.

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.

How often do AHUs need cleaning?

TR19® Air takes a risk-based approach, so it depends on inspection rather than a fixed interval. Each report suggests when the unit should next be looked at.

What AHU cleaning cannot fix

Before you book, it helps to know what’s not included:

  • The supply and extract ducts, quoted separately
  • Airflow problems caused by the system’s design
  • Faulty motors, drives or bearings

Not sure which it is? You can give us a ring on 0345 646 2711 or send us an email and we will tell you honestly.

Where we work

  • Heating and cooling coils
  • Supply and extract fans
  • Internal panels
  • Filter sections
  • Dampers and louvres
  • Drain trays
BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London