Surrey · Air handling unit cleaning

AHU Cleaning in South Nutfield

AHU cleaning for South Nutfield, from a team that has been trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.

  • Condensate trays that will not empty
  • Dust built up on fan impellers
  • Air handling units never cleaned inside

AHU cleaning across South Nutfield

How the job changes from site to site

Fans and fan sections

The fan section is cleaned with the unit switched off and isolated with your site team.

Rooftop and plant room units

Smaller units in ceiling voids are part of the work as well. We protect the area below before opening them.

How we handle AHU cleaning in South Nutfield

An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with pictures, so the report shows exactly what was done. Typical jobs include dirty coils holding back the airflow and rooms that smell stuffy when the system runs, across internal panels, dampers and louvres and heating and cooling coils.

Somewhere as small as South Nutfield, ducted ventilation is normally limited to a school, a care home, a surgery or a converted business building, wherever there is one, but where it’s fitted, it needs the same inspection and cleaning as anywhere.

Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.

Where
South Nutfield (RH1)
Region
Surrey
Paperwork
Written report with pictures
Price
Fixed quote, usually within a working day
Working hours
Overnight and weekend work, 24/7 emergency callout
Telephone
0345 646 2711
Page updated
30 October 2026
The Duct Doctor team standing beside their branded white and blue vans

What happens on the day

The first job on site is protection: floors, worktops and anything near the work are covered. Then we make the system safe and start. It takes a single shift for a typical unit, longer for large or heavily soiled ones, and the area is cleaned down before we leave. A few pictures of the system help us make the most of a visit to a place like South Nutfield.

  1. First the unit is surveyed, from photos or a visit, and the scope agreed.
  2. The unit is shut down with your site team and the area protected.
  3. Filters, coils, fan section and casing are cleaned in turn.
  4. Standing water and slime come out of the tray and the drain is checked.
  5. You get a TR19® certificate and a photo report.

How to prepare

  • Let us know about parking and loading
  • Arrange a key holder or contact on site
  • Mention any locked doors, roof access or ceiling voids

Ask for a quote

There’s no standard price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, and then send you a fixed quote. To get going, phone us on 0345 646 2711, or email photos.

Get a quick quote

Related advice

Why deal with it now?

If people in a building in South Nutfield complain about stuffy or smelly air, the AHU is worth looking at. Cleaning it deals with the cause rather than the symptom. Systems in rural buildings are often out of sight and out of mind.

Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at and we will price it together.

What you get with us

  • Evenings, overnight and weekends, plus 24/7 emergency callout
  • Trading since 2009
  • A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
  • A written report with pictures after each visit

Read how cleaning jobs are priced or our accreditations.

When something else is needed

Some problems need a different service or another trade:

  • Airflow problems caused by the system’s design
  • Controls and BMS settings that run the unit
  • Coils that are corroded or leaking and need replacing

Not sure which it is? You can phone us on 0345 646 2711 or email us and we will tell you honestly before you book.

Parts of the system we cover

  • Filter sections
  • Internal panels
  • Dampers and louvres
  • Supply and extract fans
  • Drain trays
  • Heating and cooling coils

Common questions in South Nutfield

Do you work in villages like South Nutfield?

Yes, we work in villages as well as towns, and South Nutfield is covered. Photos of the system and directions to the site help us plan the visit.

Do you clean school ventilation in South Nutfield in the holidays?

Yes, out-of-term visits are normal for schools. There are about 2 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of South Nutfield. Booking early in the term gives the best choice of holiday dates.

Do you do ventilation duct cleaning too?

Yes, the ductwork, grilles and diffusers the unit serves. We’ll tell you after the survey whether the ducts need it.

How long does it take to clean an air handling unit?

Expect it to take half a day to a full day per unit, with large plant planned over several shifts. The unit’s size and condition make the biggest difference, and the quote will give you a clear idea.

What if parts of the system can’t be reached?

We never leave them off the paperwork. The report says which parts couldn’t be reached and why, along with a quote to put access in.

Is there a report after cleaning?

Yes. You receive a certificate and a report showing each section before and after, including anything we think needs attention.

Is a quote from pictures possible?

In many cases, yes. With good photos, the site type and your last report, we can price many jobs. Where we cannot see enough, we arrange a survey.

Are you accredited?

CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We’re fully insured and have been trading since 2009.

What your team can do, and what needs us

Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.

Some jobs should never be done in-house: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That is our job.

Aftercare tips

Looking after the system between visits is straightforward, and it makes the next visit easier:

  • Plan the next inspection before the last report gets filed away
  • Keep the certificate and photo report with the plant records
  • Change filters on schedule and log each change
  • Look at the condensate drain whenever the unit is serviced

If the ductwork hasn’t been cleaned, consider it next. Cleaning the unit and ducts together gives the best result, and we can quote for both.

Have the unit inspected regularly, in line with the risk-based approach of TR19® Air, rather than waiting for a problem.

Ventilation in South Nutfield buildings

Food Standards Agency records list about 9 care, childcare and hospital premises registered as food businesses within roughly a mile and a half of the centre of South Nutfield. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. About 19 miles out from central London, South Nutfield is part of the South East area we work across. Evening, overnight and weekend visits are all possible. East Surrey Hospital is the nearest hospital, about 1.4 miles west of South Nutfield. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.

If you run an office near Nutfield station, its supply ductwork can gather dust for years before anyone looks inside. If you manage a school such as Nutfield Church CofE Primary School, ventilation cleaning is best booked for the holidays. Healthcare ventilation, from large hospitals like East Surrey Hospital (about 1.4 miles west) to small clinics, depends on clean filters, coils and ducts.

South Nutfield is about 2 miles south-east of Redhill, in Surrey. Sites in South Nutfield get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. Our area takes in 395 places across Surrey, large and small. Our London page covers sites nearby (19 miles or so).

Work in RH1 is surveyed, quoted and booked the same way as anywhere else. You’ll find streets such as Morris Road, The Copse and The Avenue, all of which we cover for AHU cleaning. Other places close to South Nutfield include Nutfield (1 mile north), Earlswood (2 miles west), Redhill (2 miles north-west), South Earlswood (2 miles south-west) and Holmethorpe (2 miles north-west). Within a short drive, we also cover Epsom (10 miles north-west), Horley (4 miles south-west), Ewell (10 miles north-west), Reigate (3 miles west), Caterham (5 miles north-east) and Dorking (8 miles west).

Near you in South Nutfield

Locally, jobs take us to businesses close to The Carrington School, The Queens Head Public House and Nutfield Marshes, among other places. South Nutfield has its own railway station: Nutfield station. A little further out are The Belfry (1.9 miles north-west) and East Surrey Hospital (1.4 miles west). The countryside around South Nutfield includes Mercers Lake and Colley Hill.

Map of South Nutfield © OpenStreetMap contributors

Landlords, agents and facilities managers

Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.

Records are where multi-site compliance often slips. Each visit produces a dated report with pictures, so you can show an insurer or inspector what was done at each site.

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