Installation
System selection and installation for homes, offices and commercial spaces.
AA Frost · London
Air conditioning installation & repair in London
AA Frost installs, repairs and maintains air conditioning systems across London, from residential units to larger commercial plant.
Repairs
Fault finding and repair for air conditioning equipment that is not cooling or operating as expected.
Maintenance
Planned checks, cleaning and calibration to help keep equipment running reliably.
Commercial systems
Our team works with rooftop units, central air conditioning, split systems, chilled water systems, chillers, cooling towers, VRF systems and air handling units.
Residential air conditioning
We can help with installation, repair and ongoing maintenance for domestic systems. The right option depends on the room, the building and how you use it.
Call 020 3633 7664 to discuss your system or arrange a visit.
Commercial cooling services
Support for commercial cooling equipment, building systems and planned maintenance across London.
Commercial AC repair
Energy efficiency enhancements
Scheduled maintenance
Residential air conditioning
Air conditioning support for homes across London.
Installation
We help choose and install a system suited to your room size, layout and cooling and heating needs.
Home installation guide →Repair
Fault diagnosis and repairs for systems that are not cooling properly, leaking or displaying error codes.
Cooling fault guide →Maintenance
Regular servicing helps keep filters, airflow, drainage and controls working properly and identifies problems early.
Arrange servicing →From first call to site visit
A clear next step for your cooling.
Explain the problem
Share your postcode, equipment type, current temperature and any fault code. Tell us if stock or building operations are affected.
Agree the next step
We discuss your equipment and requirements, then arrange an assessment where needed. Ask about availability and call-out costs when you contact us.
Repair and ongoing care
Discuss the fault, repair options and maintenance needs with the engineer so you can make an informed decision.
Before you call
Your questions, answered.
What size air conditioner do I need?
Room size is a starting point. Glazing, sunlight, occupancy and equipment also affect the cooling load. Use our sizing calculator for an initial estimate, then arrange a site assessment.
Can you help with an error code?
Use our error-code catalogue to find manufacturer information. Send us the exact code and model when arranging a repair.
Do you work on homes and commercial premises?
Yes. AA Frost handles installation, repair and maintenance enquiries for domestic and commercial air conditioning across London.
Cooling failure affecting your business?
24/7 support across London. Have your postcode and equipment details ready.