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Expert Air Conditioning Solutions in London & Kent
Established over 25 years ago, Expansion AC has built a reputation as a trusted provider of air conditioning solutions across London and Kent. Our team of C&G qualified engineers specialises in the design, installation, and maintenance of residential and commercial air conditioning systems, including energy-efficient VRV/VRF systems, loft and garden office cooling, and industrial close-control units. We prioritise tailored solutions, offering free site surveys and guarantees on all work to ensure client satisfaction.

With 24/7 emergency services and a commitment to using environmentally conscious technologies, we combine technical expertise with customer-focused service. Our Refcom certification underscores our adherence to industry standards, while our partnerships with leading manufacturers ensure reliable, cost-effective equipment for clients.
Services
Air Conditioning Installation Maintenance Services HVAC Design Domestic Air Source Heating Breakdown Repairs Commercial Cooling Loft Office AC Garden Room Systems Energy Efficiency Solutions Planned Maintenance
Highlights and features
  • We have over 25 years of experience in air conditioning design and installation.
  • Our team consists of certified C&G qualified engineers.
  • We offer free surveys and quotes for all projects.
  • We provide 24/7 emergency services across London and Kent.
  • Our Refcom certification ensures compliance with industry standards.
Associations and certifications
  • Refcom
Services
Air Conditioning Installation
We design and install residential and commercial air conditioning systems, including split units, VRV/VRF systems, and industrial close-control units. Our engineers ensure seamless integration with minimal disruption, using energy-efficient technologies to reduce running costs and carbon footprints while maintaining optimal comfort.
Planned Maintenance
Our preventative maintenance programmes extend equipment lifespan and prevent breakdowns. Qualified engineers conduct biannual or quarterly inspections, cleaning components like condensers to maintain efficiency. This service complies with F-Gas regulations and includes tailored schedules for commercial clients.
Domestic Air Source Heating
We install air source heat pumps that provide sustainable heating and hot water for homes. These systems extract warmth from ambient air, even in sub-zero temperatures, reducing energy bills and carbon emissions while offering underfloor heating and radiator compatibility for modern properties.
Breakdown Repairs
Our 24/7 emergency service addresses urgent cooling system failures. Engineers diagnose and resolve issues like refrigerant leaks or compressor faults, offering fast call-outs and guaranteed parts and labour to restore comfort and operational efficiency for residential and commercial clients.
HVAC Design
We create customised heating, ventilation, and air conditioning designs for new builds and retrofits. Using advanced calculations, we select equipment to match property requirements, ensuring optimal temperature control, humidity management, and airflow efficiency for residential, retail, and commercial spaces.
Questions
What areas do you cover?
We operate across London, Kent, Essex, and the South East, providing air conditioning solutions for both residential and commercial properties.
Do you offer emergency services?
Yes, we provide 24/7 emergency breakdown repairs to address urgent air conditioning issues promptly.
Are your engineers qualified?
All our engineers are C&G qualified and Refcom-certified to ensure compliance with industry standards and best practices.
Can you install air conditioning in garden offices?
Yes, we specialise in garden room and loft conversion air conditioning systems tailored to your space and usage needs.
Do you provide free surveys?
Yes, we offer free, no-obligation site surveys and quotations to assess your requirements and recommend suitable solutions.
What brands do you work with?
We use leading brands known for reliability and energy efficiency, ensuring durable and cost-effective systems for our clients.