C J S Air Conditioning Ltd

Specialist in commercial Air Conditioning Install

127 Cardinal Rd, Ruislip, HA4 9PY Directions

   Closed today Open Monday 08:00 - 18:00

Why Choose Us?

High Quality
DBS Checked
All Budgets

Business overview

Domestic & Commercial Air Conditioning Specialists. Installation, Service & Maintenance, Breakdowns & Repairs. Over 15 years’ experience. NVQ Level 3 qualified & F-Gas registered.

CJS Air Conditioning Ltd is a fully F Gas registered and City & Guilds qualified family run business, with over 15 years’ experience in the trade. We specialise in Installation, Service/Maintenance, Breakdowns & Repairs covering all aspects of domestic and commercial Air Conditioning.

Located in North West London, we are happy to service the whole of London's M25 plus surrounding counties, including Buckinghamshire, Hertfordshire, Middlesex and Essex.

Working with all the leading manufacturers such as Daikin, Mitsubishi, Fujitsu, Mitsubishi Heavy etc.

Our team specialise in all Installations including -

• Garden/Summer Houses

• Bedroom/study

• Living/Dining

• Loft conversion

• Shops

• Offices

As a tight-knit family business, you are guaranteed competitive rates as well as a friendly, professional and exceptionally clean service. Something we pride ourselves on.

We are also happy to offer a full 7-year warranty on all installations subject to service agreements.

We enjoy educating our customers with information such as how efficient AC units are for heating and cooling purposes not just for ourselves but for the planet to.

For any more information and an extensive breakdown of the quality services we provide, get in touch today to discuss your needs with a member of the CJS team.


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Single Split System Installation
From £900 per item

Products & Services

Air Conditioners

Air Conditioning Filters

Air Conditioning Repairs

Air Conditioning Equipment

Air Conditioning Engineers

Air Conditioning Condensers

Air Conditioning Compressors

Air Conditioning Fans

Air Conditioning Consultants

Ducting and Ductwork

Controlled Climate Equipment


Ventilation Services




  • RAC Cooling Awards: RAC Contractor Of The Year (AC or Ref) 2021 - Winner


  • F Gas Certificate (FGAS2003425)


  • Heating, Ventilating & Air Conditioning Manufacturers Association (20034522)


  • Refrigeration, Air Conditioning and Heat Pump Systems, Level 3 Diploma (City and Guilds of London Institute)


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