Plain-English advice
We explain the options (single split, multi-split, cassette or ducted) and the trade-offs, so you can make an informed choice.
We help London homeowners, landlords and businesses choose, install and look after air conditioning that suits their buildings, with clear advice and careful workmanship.
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London Air Conditioning Fitters provides air conditioning installation, repairs, servicing and maintenance across Greater London. We work in flats, houses, offices, shops and hospitality venues, fitting systems that cool efficiently in summer and, in most cases, heat just as efficiently in winter.
London is a demanding place to install air conditioning. Leases restrict what can go on external walls, conservation areas and listed buildings bring planning considerations, outside space is limited and neighbours are close. Good results come from planning around those realities rather than discovering them on installation day.
That is why every project starts with understanding the space: how warm it gets, how it is used, where an outdoor unit could sensibly go and how pipework and drainage can be routed neatly. From there we recommend a system, explain why, and set it out in a written quotation.



Surveyed, heat-load sized and properly commissioned air conditioning for London homes and businesses, from a single wall unit to multi-room and ducted systems.
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Symptom-led fault finding for air conditioning that has stopped cooling, is leaking, icing up, tripping the electrics or showing an error code anywhere in London.
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A single, thorough service visit covering filters, coils, drains, fans, electrics and refrigerant performance, with readings recorded for homes and businesses across London.
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Planned preventative maintenance programmes with scheduled visits, asset registers, leak-check logs and filter routines for homes, landlords and multi-site businesses.
Learn moreWe explain the options (single split, multi-split, cassette or ducted) and the trade-offs, so you can make an informed choice.
Oversized units cycle on and off and undersized ones struggle. We size equipment to your rooms and heat gains.
You’ll know what equipment is proposed, what work is included and what you may need to arrange, such as landlord consent.
Dust sheets, careful drilling, tidy pipe runs and a clean finish, in a family home or a working office alike.
We think about noise, neighbours and appearance when positioning outdoor units, not just the shortest pipe route.
Servicing and maintenance help protect efficiency and reliability, and we’re here when something needs attention.
Most of the decisions that make an air conditioning system work well are made before any equipment is ordered. A survey is where we turn “I want this room cooler” into a specification you can rely on.
We look at room dimensions, glazing and orientation, insulation, the number of people who use the space and any equipment giving off heat, such as computers, AV, kitchen appliances or servers. Those factors set the cooling and heating capacity, which is why two rooms of the same size can need different units.
When is the room used most? Is it already too warm in spring? Do you want heating as well as cooling? Are there quiet hours, such as bedrooms or meeting rooms?
Next comes the indoor unit position, the outdoor unit position and the route between them. We balance airflow and appearance inside with access, noise, drainage and consent outside. We also tell you if the preferred position is likely to cause problems with a freeholder, landlord or planning authority.
Condensate must drain reliably, by gravity where possible or with a pump. We also check where a dedicated electrical supply and isolator can be provided.
Your quotation sets out the recommended equipment, the installation work, what making-good is included and anything you may need to arrange, such as freeholder consent or parking. If there are sensible alternatives, like a multi-split instead of two singles or a floor console instead of a wall unit, we explain the trade-offs.
Air conditioning is a long-term piece of equipment. A little care keeps it efficient, quiet and reliable for years, and we can help with as much or as little of that as you need.
Cleaning or vacuuming the indoor unit filters every few weeks during heavy use, keeping the outdoor unit clear of leaves and plants, and using sensible set-points are the easiest ways to protect performance. We show you how at handover.
An engineer’s service goes further: coil cleaning, drain-line checks, electrical tests and refrigerant pressure readings. If something does go wrong, a repair visit diagnoses the fault properly rather than guessing. See our servicing and repairs pages for what is involved.
Our customers range from flat owners wanting a cooler bedroom to facilities teams responsible for whole office floors.
One bedroom unit or cooling for a whole office floor, it starts the same way: a few details about the space, and we’ll take it from there.
A few details help us understand your property and come back with useful advice.