Surrey · Air handling unit cleaning
AHU Cleaning in Hammer Bottom
AHU cleaning in Hammer Bottom from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Condensate trays that will not empty
- Dirty fans and fan housings
- Dust-coated heating and cooling coils
When it’s something else
A few issues sit outside what this work can do:
- The supply and extract ducts, quoted separately
- Faulty motors, drives or bearings
- Leaking heating or cooling coils
Not sure which it is? You can call us on 0345 646 2711, or email photos and we will tell you honestly before booking.
What the work covers
- Internal panels
- Heating and cooling coils
- Supply and extract fans
- Drain trays
- Dampers and louvres
- Filter sections
About our AHU cleaning in Hammer Bottom
Heating and cooling coils trap dust that gets past the filters. Dirt on the fins holds back air and makes the unit work harder to do the same job. Coils are cleaned carefully, with methods chosen so the fins aren’t flattened. The work covers filter sections, dampers and louvres and supply and extract fans, and people most often call us about dirty filters cutting the airflow and dust built up on fan impellers.
Rural buildings with mechanical ventilation, such as care homes and country hotels, often keep their units in roof spaces or outbuildings, which makes them easy to overlook.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we are fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Place
- Hammer Bottom (GU27, GU30)
- Wider area
- Surrey
- Paperwork
- Photo report after each visit
- Quote
- A fixed quote up front
- Working hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Staff cleaning versus specialist work
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
What the work involves, part by part
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. The impeller, its housing and the fan chamber are cleaned.
Filters
Clogged filters reduce airflow, and dirt can get round the edges. The filter section is cleaned so new or cleaned filters sit properly.
FAQs for Hammer Bottom
Is Hammer Bottom within the area you cover?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
Can you work in Hammer Bottom outside opening hours?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Hammer Bottom needn’t be disturbed. Tell us your opening hours when you ask for a quote.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used and we’ll propose a schedule with a fixed quote.
How long does an AHU clean take?
As a guide, it takes anything from half a day for one small unit to several shifts for a plant room full of them. The shutdown is planned to fit, including evenings or weekends.
Do you work with multi-site operators?
Yes. Tell us the addresses and what each needs and we will quote them together.
Which kinds of sites do you work on?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Is a quote from photos possible?
Yes, where the pictures show enough. If not, a site survey comes first, then a fixed quote.
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 affects the quote in Hammer Bottom
We quote each job individually. This is what makes a difference:
- The scale of the work
- How many systems or sites are involved
- Site requirements such as sign-in and permits
- Working hours and out-of-hours timing
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 will 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:
- Problems your staff have spotted
- The times we could work without disrupting the site
- Wide pictures of the system and the area around it
- Close-ups of filters, grilles, hatches or access panels
We don’t publish a price list, because no two systems are the same. We look at your system first, from photos or on a visit, then send a fixed quote. To get going, call 0345 646 2711, or email photos.
Ventilation in Hammer Bottom buildings
Going by the FSA’s register, there are about 6 schools, colleges and universities and about 8 hospitals, care homes and childcare premises serving food within roughly a mile and a half of the centre of Hammer Bottom. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. About 41 miles out from central London, Hammer Bottom is part of the South East area we work across. We work evenings, overnight and at weekends, so the visit fits around the site. Haslemere and District Hospital is the nearest hospital, about 2.4 miles east of Hammer Bottom. Clean air matters most where people are unwell, and that is as true in a care home as in a hospital.
School buildings such as Woolmer Hill School are normally done in the holidays, so classrooms are not disturbed. Healthcare buildings such as Haslemere and District Hospital, about 2.4 miles east, depend on their ventilation; if you manage a surgery, clinic or care home near Hammer Bottom, yours matters too.
Hammer Bottom is about 9 miles south of Farnham, in Surrey. Sites in Hammer Bottom get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with photos. Hammer Bottom is one of 395 places in Surrey we cover for commercial clients. Our Guildford page covers sites nearby, about 14 miles away.
All of GU27 and GU30 is covered for AHU cleaning, from busy streets to back roads. That includes premises on Hammer Vale, Sandy Lane and Hewshott Lane and nearby roads. We also cover the places around Hammer Bottom: Hammer (1 mile east), Woolmer Hill (1 mile south-east), Bramshott Chase (1 mile north), Linchmere (1 mile south) and Shottermill (1 mile east). Larger places within reach include Guildford (14 miles north-east), Farnham (9 miles north), Cranleigh (13 miles east), Ash (11 miles north), Godalming (9 miles north-east) and Farncombe (10 miles north-east).
Around Hammer Bottom
In Hammer Bottom, that means kitchens and buildings near The Prince of Wales pub and Camelsdale Primary School and the streets around them. The closest station to Hammer Bottom is Haslemere station, roughly 1.9 miles east. Well-known places in the area include Haslemere and District Hospital (2.4 miles east). Green spaces nearby include Wheeler's Down and Lynchmere Commons.
Why it’s worth doing now in Hammer Bottom
When the unit is clean, less dirt reaches the ducts, so the ducts and grilles stay cleaner between cleans. That makes the next inspection of a building in Hammer Bottom simpler. Rural sites can’t always move to another kitchen or room when something fails.
The price reflects the work, not guesswork. That is why we survey first, from pictures or on site, and why the quote is fixed before we start.
What you get with us
- Fixed quotes from a survey or pictures
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Survey first, then a fixed quote
- In business since 2009
Read what affects the cost and our accreditations and certificates.
Nearby places to Hammer Bottom
More services for Hammer Bottom
How the visit works
There are three stages on the day: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with photos. Most of the time goes on the work itself, and that takes half a day to a full day per unit, with large plant planned over several shifts. If you can send photos, we can arrive in Hammer Bottom knowing what to expect.
- We agree a shutdown window that suits the building.
- We take before photos of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- We take after pictures and issue the certificate and report.
Preparing for the visit
- Tell us where we can park and unload
- Plan for cooking equipment or plant to be off before we arrive
- Let us know when the site is closed or quiet
Get a fixed quote
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Related advice
Managing agents and facilities teams in Hammer Bottom
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we will send a fixed quote.
Whether it’s one building or many, you get the same standard: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.