West Sussex · Air handling unit cleaning
AHU Cleaning in Colgate
Specialist AHU cleaning for Colgate: diagnosis first, then a fixed quote, the work and a report with photos. Ask us for a fixed quote.
- Dust built up on fan impellers
- Units that have only ever had filter changes
- Units needing a clean before a new tenant or handover
Questions from Colgate
Do you offer AHU cleaning in Colgate?
Yes, Colgate is within the area we cover across London and the South East. Just call 0345 646 2711 or send us an email with a few details of the site.
Can you work in Colgate outside opening hours?
Yes. We work evenings, overnight and at weekends. It means the site in Colgate keeps running as normal. Just call us on 0345 646 2711, or email photos with your opening times and we will plan around them.
Do you offer maintenance contracts?
Yes. Send details of the systems and how they’re used, and we will suggest a schedule and quote for it.
When should our AHU next be cleaned?
It depends on the unit, the filters and how the building is used. Inspection tells you when cleaning is needed, and the report recommends a next date.
Which kinds of sites do you work on?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, plus food production and leisure sites.
Can you price the work without visiting?
Often, yes. With good photos, the site type and your last report, we can price many jobs. Where we can’t see enough, we arrange a survey.
Will we get paperwork for the AHU clean?
Yes. You receive a certificate and a report showing each section before and after, with any faults we noticed.
What do you do with what you remove?
Waste is contained during the work and removed when we leave, including grease, debris and dirty water. We do not leave it behind.
AHU cleaning for kitchens and businesses in Colgate
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. Common call-outs are for intake sections clogged with outdoor debris and air handling units never cleaned inside, across drain trays, dampers and louvres and filter sections.
Somewhere as small as Colgate, ducted ventilation is normally limited to a school, a care home, a surgery or a converted business building, wherever there is one, but those that do need it inspected and cleaned like any other.
Nothing is signed off by word of mouth: a written report, dated and illustrated with photos, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.
- Location
- Colgate (RH13, RH12)
- Wider area
- West Sussex
- Records
- Photo report after every visit
- Quote
- Fixed quote, typically within a working day
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Multi-site and managed buildings
Running several sites is easier with one contractor. We work across London and the South East, so a run of sites can go into one programme and kept to a regular schedule.
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We can quote either party, and the report can go to both.
Ventilation in Colgate buildings
Colgate’s nearest hospital, Crawley Hospital, is about 3.1 miles north-east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. About 30 miles out from central London, Colgate is part of the South East area we work across. We work evenings, overnight and at weekends, so the visit fits around the site.
School buildings such as Colgate Primary School are normally done in the holidays, so classrooms are not disturbed.
Colgate is about 3 miles south-west of Crawley, in West Sussex. Across the RH13 area, we cover AHU cleaning for commercial sites. Across West Sussex, we cover 371 places, and Colgate is one of them. Our Brighton page covers sites nearby (18 miles or so).
Work in RH13 and RH12 is surveyed, quoted and booked the same way as anywhere else. Whether your site is on Forest Road, Vicarage Close and Blackhouse Road or anywhere close by, our technicians can take on the work. If your site is just outside Colgate, we cover Kilnwood Vale (1 mile north), Faygate (1 mile north-west), Broadfield (2 miles north-east), Roffey (2 miles west) and Handcross (3 miles south-east). Larger places within reach include Crawley (3 miles north-east), Horsham (4 miles west), Haywards Heath (9 miles south-east), Burgess Hill (10 miles south-east), East Grinstead (11 miles east) and Storrington (14 miles south-west).
Local landmarks in Colgate
Typical jobs here are in premises near The Dragon pub, Target Hill Park and Cottesmore School and the streets around them. Colgate’s nearest station is Faygate station, roughly 1.3 miles north-west. Other landmarks nearby include Crawley Museum (3.4 miles north-east) and County Mall (3.4 miles north-east). The countryside around Colgate includes Tilgate Lake and Warnham LNR.
How the job changes from site to site
Drain trays
Standing water in a tray sits right where the air passes. We clean it and note if the slope or the drain needs attention.
Rooftop and plant room units
Units on roofs and in plant rooms can be awkward to reach. We plan safe access as part of the survey, before we quote.
What affects the quote in Colgate
We quote each job individually. These are the things that affect it:
- The condition we find in the survey
- How many systems or sites are involved
- Parking and loading at the site
- The times the site is available
The cost depends on the size of the system, the condition it’s in and access to every part of it. You get a fixed price before work begins, so there are no surprises.
Helping us quote
Many jobs can be priced from pictures and some basics. Useful things to send:
- Any access panels or hatches you can see
- When the site is open and when it’s quiet
- Problems your staff have spotted
- A few general shots of the system
Every quote begins with a look at the system, from your photos and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work, before work begins.
What we do, step by step
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. The visit takes a single shift for a typical unit, longer for large or heavily soiled ones. For a village or hamlet like Colgate, 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.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Preparing for the visit
- Mention any sign-in, permit or induction we need
- Allow time for equipment near the work to be turned off and cool down
- Let us know when the site is closed or quiet
Getting a quote
To get a fixed quote, phone us on 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. You will usually have a quote within one working day.
Related advice
What we’re called out for in Colgate
Planned maintenance often covers belts, motors and filters but not cleaning. That means a unit can tick every service box and still be carrying years of dirt.
Keep an eye out for any of the following:
- Dirty coils holding back the airflow
- Stale or musty smells from the ventilation
- Plant that has been serviced but not cleaned
- Dirty filters cutting the airflow
Healthcare buildings such as Crawley Hospital, about 3.1 miles north-east, depend on their ventilation; if you manage a surgery, clinic or care home near Colgate, yours matters too.
Questions to ask before you book
- Whether the quote shows VAT
- Proof of accreditation you can verify
- When they can work, and whether that is outside your opening hours
- Whether the quote is based on a survey or pictures
Aftercare tips
Simple habits between visits make a real difference. We recommend:
- Keep inspection doors on the unit in good order
- Do not store bins or materials near the intake
- Report musty smells from the vents right away
- Stick to the filter change plan
Restart the unit with your site team or maintenance contractor once we’ve finished. Keep an eye on the condensate drain over the next few days to confirm water is draining away.
Check drain trays and condensate drains during routine maintenance. A drain that’s cleared early never gets to the slime stage.
Towns and villages near Colgate
What else we do in Colgate
What AHU cleaning can’t fix
We won’t sell you work that does not address the problem, so here are the limits:
- Ventilation that was badly designed in the first place
- Problems with the unit’s controls or sensors
- Coils that are corroded or leaking and need replacing
If you are not sure, just call us on 0345 646 2711 or send us an email and we’ll give you a straight answer before you book.
Parts of the system we cover
- Dampers and louvres
- Filter sections
- Internal panels
- Supply and extract fans
- Heating and cooling coils
- Drain trays