West Sussex · Commercial air conditioning
Commercial air conditioning in Keymer, West Sussex
F-Gas certified and NICEIC approved, we cover Keymer for commercial air conditioning. Fixed-price quotes and a 24/7 emergency line.
- Workspaces that overheat on warm days
- New tenancies needing cooling and heating
- Older systems that cannot keep up
About our commercial air conditioning in Keymer
Commercial air conditioning is a big part of what we do, for businesses in Keymer and the rest of West Sussex. Offices, shops, restaurants, hotels, schools and server rooms all come with different demands, and each one gets a system chosen for how the space is used. Common call-outs are for R410A systems getting dearer to top up and comms rooms without enough cooling, across server and comms room cooling, multi-split systems and ducted systems.
Around Keymer, commercial jobs are normally a shop, surgery, pub, office or workshop. Most need one to four indoor units, sized from a site survey.
Think of the paperwork as the system’s health record: a dated account of the work and the readings we took. If anything goes wrong later, it helps the next engineer and the manufacturer, so keep it safe.
- Where
- Keymer (BN6)
- Region
- West Sussex
- Credentials
- F-Gas certified company, NICEIC approved
- Quote
- A fixed price before we start
- Typical price
- Quoted after a survey
- Phone
- 07833 053749
- Page updated
- 30 October 2026
How the job changes from property to property
Server and comms rooms
Server room systems need regular servicing to stay reliable and we can cover it under a contract.
Ceiling cassettes
Installing a cassette needs room in the void and a way to drain the water. Many include a pump to move the water away and that is checked when it’s serviced.
Fixed-price quotes for commercial air conditioning in Keymer
The diagnosis comes before the price. We look at:
- The brand, model and parts involved
- The size of the job
- Whether we need access equipment for high-level work
No two properties are the same, so we price each one individually. The system, the access, the pipe routes and the parts involved all play a part.
What to send for a quote
To help us quote quickly, send us:
- A short video of any fault, such as a noise or a flashing light
- The make and model of the system, from the label
- Wide photos of the room or the existing unit
To get a fixed-price quote, give us a ring on 07833 053749 or send an email and tell us about the property and what you need. Photos help a lot. You will hear back from us the same working day.
Keymer: your questions answered
Is planning permission needed for air conditioning in Keymer?
It comes down to the building and the spot chosen for the outdoor unit. The Keymer Conservation Area is close to the centre of Keymer. Permitted development only covers heat pumps that aren’t used solely for cooling, and not within the grounds of a listed building. Conservation areas add limits on outdoor units facing a road. Where necessary, we check with the planning department at Mid Sussex council, normally the authority for Keymer.
Is Keymer in your area for commercial air conditioning?
Yes. We work across London and the South East from our base in East Grinstead, and Keymer is part of that. Just ring 07833 053749 or send an email with a few details.
Will skipping a service affect the warranty?
It depends on the manufacturer’s terms. Some warranty terms require the system to be serviced regularly by a qualified engineer, so it’s worth checking. Keep every service record either way.
Do you protect the property while you work?
Floors and furniture near the work are covered with dust sheets before work begins, and the area is kept tidy throughout. Before we leave, we clear up and run through the work with you.
Do you provide ongoing maintenance for businesses?
Yes, and we tailor the schedule to the system and how hard it works. For breakdowns, there’s a 24/7 emergency line.
Who is responsible for leak checks?
The F-gas rules share it between the equipment’s operator and the engineers who work on it. How often depends on the size of the refrigerant charge in tonnes of CO2 equivalent: at least every 12 months from 5 tCO2e, and every 6 months from 50 tCO2e.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line for breakdowns that can’t wait. Ring 07833 053749 any time and explain the problem.
Looking after it afterwards
Think of this as the after-treatment advice, short and simple:
- Keep outdoor units clear of rubbish and stored goods
- Keep a log for each system
- Don’t let servicing slip
Equipment warranties come from the manufacturer. We go through the manufacturer’s conditions with you, so you know what’s needed.
Keep records of every service, leak check and repair. For systems at or over 5 tCO2e, they’re required.
Commercial air conditioning around Keymer
The FSA’s food hygiene register shows about 14 restaurants, cafés and canteens and about 3 care, childcare and hospital premises within roughly a mile and a half of the centre of Keymer. Restaurants, hotels, schools and care settings each need cooling designed for their hours and heat loads.
If your office near Hassocks station has a comms or server room, it needs cooling all year, not just in summer. Before any plant goes outside a building like St Cosmas and St Damian Church, its trustees may need planning or heritage advice, and we work with whoever gives it.
Keymer is about 2 miles south of Burgess Hill, in West Sussex. Homes and businesses alike in Keymer, we can help with commercial air conditioning. We reply to enquiries the same working day and our emergency line runs 24/7. Keymer is one of 371 places in West Sussex where we work for homes and businesses.
Our nearest recent job to Keymer was on Keymer Road, Hassocks (BN6), about 1 mile west: installing a Mitsubishi Electric multi-split system serving three bedrooms and a dedicated home office.
Our working area takes in BN6. If you need commercial air conditioning at a property on Flowers Close, The Quadrant and Kymer Gardens or anywhere close by, our engineers can take on the work. If you are just outside Keymer, we cover Hassocks (1 mile west), Ditchling (1 mile east), Clayton (1 mile south-west), Hurst Wickham (1 mile north-west) and Westmeston (2 miles south-east). We also work in nearby towns such as Crawley (13 miles north), Horsham (13 miles north-west), Worthing (14 miles south-west) and Haywards Heath (5 miles north).
Near you in Keymer
Around Keymer, our work takes us to homes and businesses near The Greyhound Public House and Downlands Community School. For rail, the closest station is Hassocks station, about 0.5 miles west. Well-known places in the area include The Dene Hospital (3.2 miles north-west) and Clayton Castle (1.2 miles south-west). For a walk, there’s Ditchling Beacon and Bedelands Farm Nature Reserve.
Towns and villages near Keymer
Other services in Keymer
How the visit works
On the day, we arrive at the time agreed with you and run through the plan before anything else. Dust sheets go down over floors and anything close to the work, and the electrics are made safe before any panel comes off. The work itself takes from a couple of days for a few cassettes to a planned programme for a whole building. We load the van from the survey notes so the work in Keymer can be done in one go where possible.
- First comes a survey, looking at the building and how it’s occupied.
- We recommend a system and send a fixed-price quote.
- We agree the timing, with evening, weekend or phased work as needed.
- We install the units, pipework, drainage, electrics and controls.
- Commissioning and handover follow, with the F-gas records and manufacturer paperwork.
Getting ready for the visit
- Let us know where the consumer unit is
- Keep pets out of the rooms we are working in
- Clear the space around the indoor unit, or where it will go
Ask for a quote
Want a quote for commercial air conditioning? Please ring us on 07833 053749 with a few details about the property. We will talk you through the options and give you a fixed-price quote before you commit to anything.
Read more
What a customer said
“Very professional from the initial survey through to installation. The engineer explained everything clearly and the quote was exactly what we paid. Would not hesitate to recommend AirCon Doctor.”
David W., Haywards Heath