Business Details
Emergency
services
Expert HVAC Services in London & Kent
Expansion AC has been delivering professional air conditioning solutions across London, Kent, and the South East for over 25 years. Our expertise spans the complete lifecycle of HVAC systems, from initial design and installation to ongoing maintenance and emergency repairs. We specialise in tailored solutions for residential, commercial, and industrial clients, including loft conversions, garden offices, and large-scale commercial properties. Our team of C&G qualified engineers combines technical proficiency with a commitment to customer satisfaction, ensuring every project meets exacting standards. We prioritise energy-efficient systems that reduce environmental impact while optimising cost savings for clients. With 24/7 availability and rapid response times, we minimise operational disruption for businesses.Our Refcom certification underscores our adherence to industry best practices in F-Gas compliance. Every installation comes with a 15-year guarantee, reflecting our confidence in the quality of our workmanship and equipment. We maintain transparency throughout the process, offering free surveys and fixed-price quotations with no hidden costs. Our partnerships with leading manufacturers ensure access to cutting-edge technology, including VRV/VRF systems and air source heat pumps. By balancing technical excellence with client-centric service, we have built a reputation for reliability and innovation in climate control solutions.
Services
Air Conditioning Installation
HVAC Maintenance
System Design Consultation
Air Source Heating
Emergency Repairs
Highlights and features
- 25 years of experience in HVAC system design and installation
- C&G qualified engineers with Refcom certification
- 24/7 emergency call-out service available 365 days a year
- Free site surveys with no-obligation quotations
- 15-year guarantees on all installations
Associations and certifications
- Refcom
What people say
Professional engineers
24/7 availability
Energy-efficient solutions
Competitive pricing
Excellent aftercare
Services
Air Conditioning Installation
We install complete air conditioning systems for residential and commercial properties, including split systems, VRV/VRF technology, and industrial climate control solutions. Our engineers ensure precise installation that maximises energy efficiency while meeting specific space requirements. All installations include a 15-year guarantee.
Planned Maintenance
Our preventative maintenance programmes extend equipment lifespan through regular inspections and servicing. Engineers perform comprehensive checks on condensers, refrigerant levels, and system efficiency to prevent breakdowns while maintaining F-Gas compliance standards.
System Design
Our design team creates custom HVAC solutions tailored to property specifications, including thermal calculations and energy-saving recommendations. We provide detailed schematics and product selections that balance performance with budgetary considerations for both new builds and retrofits.
Air Source Heat Pumps
We supply and install air source heat pump systems that provide efficient heating solutions for domestic properties. These systems reduce energy bills while complying with environmental regulations, suitable for underfloor heating and domestic hot water provision.
Emergency Repairs
Our 24/7 emergency service addresses urgent HVAC failures with rapid diagnosis and repair. Engineers carry common replacement parts to resolve issues promptly, minimising downtime for commercial clients and restoring comfort in residential properties.
Questions
What areas do you cover?
We operate across London, Kent, Essex, and the wider South East region, providing both domestic and commercial HVAC services.
Do you offer emergency repairs?
Yes, our 24/7 emergency service responds to HVAC breakdowns 365 days a year with rapid call-out times.
Are your engineers certified?
All our engineers hold City & Guilds qualifications and we maintain Refcom certification for F-Gas compliance.
What guarantees do you offer?
Every installation comes with a 15-year guarantee covering both parts and workmanship.
Can you help with commercial HVAC design?
Our team provides complete commercial system design, including thermal calculations and energy efficiency optimisation for large-scale projects.
Do you install residential air conditioning?
Yes, we specialise in domestic installations including loft conversions, garden offices, and whole-house systems.
