Free Survey & Consultation
We visit your property to assess room sizes, wall and ceiling access, and where the outdoor unit can be sited, then talk through single-split versus multi-split options.
Looking to keep your home cool in summer and comfortable all year round? We provide professional air conditioning installation across South London, supplying and fitting single-split and multi-split systems to suit your property and requirements. Additionally, as we expand our services, we ensure every installation is carried out to the highest standard.
You already know us for heating, now we're bringing that same local expertise to cooling. We cover Bexley, Greenwich, Lewisham, Bromley, Croydon and all South London areas, plus extended coverage to Central London and Wandsworth. As a new service, we don't yet have fixed online pricing. Please get in touch, and we'll put together a tailored quote for your property.
South & Central London coverage
Systems installed and serviced
Appointments available
Survey appointments available
South London summers are getting hotter, and air conditioning has gone from a luxury to something homeowners and businesses plan for. Here's what a new system gives you:
Recent summers have brought longer, more intense heatwaves to London. A properly sized system keeps bedrooms and living spaces comfortable when it matters most.
A home office or garden room fitted with a single-split unit stays productive and comfortable, even during the hottest working days of the year.
Cooler bedrooms support better sleep. A single-split unit in the main bedroom is one of the most requested installations we see.
Today's inverter-driven systems are far more efficient than older units, adjusting output to maintain temperature rather than switching fully on and off.
Most modern systems also provide efficient heating in cooler months, giving year-round use from a single installation.
A neatly installed system is a practical addition to a home or office, and increasingly something buyers and tenants ask about.
We install and work on both system types. Not sure which fits your property? We'll survey your space and recommend the right setup.
One outdoor condenser connected to a single indoor unit. The simplest and most affordable option when you need to cool or heat one space.
- Ideal for a bedroom, home office, garden room or small shop
- Fastest to install, usually within half a day
- Straightforward wall-mounted indoor unit
- Lower upfront cost than a multi-split setup
One outdoor condenser connected to two or more indoor units, letting you cool or heat several rooms independently from a single outdoor unit, while keeping the installation practical and discreet.
- Ideal for whole-house, whole-office or multi-room cooling
- Each indoor unit can be controlled separately
- Only one outdoor unit is needed, which helps with space and planning
- Installation typically takes one to two days depending on scope
What to expect from first contact through to a working system.
We visit your property to assess room sizes, wall and ceiling access, and where the outdoor unit can be sited, then talk through single-split versus multi-split options.
We size the system correctly for your space — an undersized unit struggles in summer, while an oversized one wastes energy and money.
You receive a clear, no-obligation quote covering equipment, installation and any electrical work needed, before any work is booked in.
Indoor units are mounted and outdoor condensers positioned with care for noise, access and appearance, following manufacturer guidelines.
Refrigerant pipework, condensate drainage and electrical connections are installed and routed as neatly as the property allows.
The system is charged, pressure tested and commissioned to manufacturer specification, then checked across all modes before we finish.
We talk you through the controls, hand over documentation, and answer any questions before we leave.
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Our engineers are trained and equipped to install and maintain the air conditioning brands most common in South London homes and offices:
One of the UK's most widely installed AC brands. Our engineers are Daikin approved for their split and multi-split ranges.
As Mitsubishi Electric approved engineers, we install and service the full range from single split to city-multi VRF systems.
Common in newer developments. We follow brand-specific installation and service procedures for both ranges.
We install and maintain both ranges, including inverter-driven models designed for year-round efficiency.
We install and maintain both ranges, including inverter-driven models designed for year-round efficiency.
Don't worry, we'll talk through your space and recommend the right brand and setup during a free survey.
Air conditioning is a new service for us, so we don't have fixed prices listed online. Every property is different, get in touch and we'll arrange a free survey and put together a quote based on your space and system choice.
Once your system is installed or if you already have one, we also offer ongoing servicing to keep it running efficiently and safely.
Filter cleaning, evaporator and condenser coil checks, refrigerant pressure and leak checks, drainage checks, electrical and safety testing, and a controls check finished with a written service record.
Annual servicing keeps manufacturer warranties valid, catches small issues before they become expensive repairs, protects air quality by clearing dust and mould from filters, and keeps running costs down.
Commercial and larger systems fall under F-Gas leak-check obligations. We can carry out the required checks and keep the records landlords and businesses need.
Whether we installed your system or not, we service Daikin, Mitsubishi Electric, LG, Samsung, Panasonic, Toshiba and most other brands.
Not all AC problems are equal. Here's how to tell if you need an emergency callout.
Not sure if you have an emergency? Call us and we'll help assess urgency and prioritise accordingly.
South London's diverse building stock each has specific considerations, whether we're fitting a new system or maintaining one:
Period properties common across Greenwich, Blackheath and Dulwich need careful pipe routing to avoid damage to original features.
Predominant across Bexley and Bromley. Wall-mounted splits are usually straightforward to fit and service.
Through-wall and compact split units are common. We plan condensate drainage routes and check noise levels against building rules.
Greenwich Peninsula and Canada Water developments often suit multi-split or VRF systems covering several rooms or zones.
Larger multi-zone systems for offices and retail units typically need more frequent servicing and fall under F-Gas record-keeping requirements.
Legal requirements every engineer must follow and why they exist.
UK F-Gas Regulations require systems holding a set refrigerant charge to have regular leak checks by a certified engineer, with records kept for at least five years.
Most manufacturers require correct installation and annual servicing by a qualified engineer to maintain warranty cover.
Commercial systems above a set refrigerant threshold must have documented leak-check records, which we can carry out alongside a service.
Part L (Conservation of Fuel and Power) and Part F (Ventilation) set standards for system efficiency and air quality, which we account for at installation.
All our engineers hold F-Gas Category 1 certification with £5M public liability insurance. We comply with Building Regulations and maintain complete legal compliance for every job.
Heatbox provides air conditioning installation and servicing with specialist focus on South and South East London.
What to expect when we repair your AC
Clear access to the rooms and any outdoor space involved. For a service, have previous records available and note anything you've noticed with the system.
A survey or single-split service usually takes under an hour; a full installation is a longer, planned visit. Our engineer will explain what's happening as they go.
You receive full written documentation, a quote breakdown for installations, or a service record for maintenance visits to keep for warranty purposes.
Rinse or replace washable filters every few months during heavy use, keep the outdoor unit clear of leaves and debris, and report unusual noises promptly.
Customers who booked an AC service also used:
Need a new system? We install Daikin and Mitsubishi Electric splits and multi-splits with warranties up to 7 years.
Unit not cooling properly or showing an error code? Our engineers diagnose and repair all major brands.
System down in a heatwave? We provide priority emergency repairs across South London.
Planned maintenance contracts for offices and retail units, including F-Gas compliance record-keeping.
Need a leak-check certificate for your commercial system? Combine with a service or book separately.
Annual boiler servicing keeps your heating running efficiently alongside your cooling system. From £90.
Over 15 years serving London with transparent pricing, specialist knowledge, and genuine emergency response. No corporate markup, just honest local service.
Yes, for domestic visits someone over 18 needs to provide access to the property. For commercial sites, a site contact or facilities manager should be available.
Yes, our engineers service all major brands, including Daikin, Mitsubishi Electric, LG, Samsung, Panasonic, Toshiba and Fujitsu, as well as older or less common systems.
Don't wait for a breakdown in a heatwave to discover your AC needs attention. Book your annual service now and keep your system running efficiently all summer.
Serving Bexley, Greenwich, Lewisham, Bromley, Croydon & All South London · F-Gas Certified · Daikin & Mitsubishi Electric Approved · Fully Insured
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