How much does air conditioning installation cost in London?

The cost of air conditioning installation in London depends on the size of the room, the type of unit, the pipe route, the outdoor unit position, access, electrical requirements and the brand selected. A single bedroom or home office system is usually more straightforward than a multi-room or commercial installation. Citywide Plumbers can assess your property and recommend the right AC option before confirming a quote.

Can you install air conditioning in a bedroom, loft room or home office?

Yes. Wall-mounted split air conditioning is commonly used for bedrooms, loft rooms, garden offices and home offices where people need quiet and efficient cooling. The correct unit size depends on room dimensions, insulation, sunlight, glazing and how the room is used.

Do I need planning permission for an air conditioning unit in London?

It depends on the property and the outdoor unit location. Many small domestic installations may not need planning permission if they do not materially affect the external appearance of the building, but flats, leasehold properties, listed buildings, conservation areas and visible external plant may need extra checks or consent. We recommend checking the position before installation.

Can air conditioning be installed in a flat or apartment?

Yes, air conditioning can often be installed in flats and apartments, but it needs careful planning. The main things to check are leaseholder permission, freeholder or managing agent rules, outdoor unit location, condensate drainage, noise impact and whether planning consent is required.

Do air conditioning systems need an outdoor unit?

Most split air conditioning systems use an indoor wall unit and an outdoor condenser unit. The outdoor unit removes heat from the room and must be positioned safely with suitable airflow, access for servicing and a compliant pipe route.

Are your air conditioning installations F-Gas compliant?

Air conditioning systems that use refrigerant must be handled and installed by suitably qualified F-Gas professionals. Citywide Plumbers can arrange air conditioning installation support to the correct professional standard, including refrigerant pipework, commissioning and safe setup.

Which air conditioning brands do you install?

We can help with popular wall-mounted split AC brands such as Daikin, Mitsubishi Electric and LG, depending on availability, property requirements and customer preference. We can advise on suitable options for bedrooms, living rooms, offices, shops and rental properties.

Can air conditioning heat as well as cool?

Many modern split air conditioning systems are heat pump systems, meaning they can provide cooling in summer and heating support in colder months. This can be useful for bedrooms, offices, garden rooms and spaces where fast temperature control is needed.

How long does AC installation take?

A straightforward single-room split air conditioning installation can often be completed within a day, depending on access, pipe route, wall type, outdoor unit location and electrical work. Larger homes, multiple indoor units or commercial properties may take longer.

How often should air conditioning be serviced?

For domestic systems, annual servicing is usually recommended to help keep the unit clean, efficient and reliable. Commercial systems or heavily used units may need more frequent maintenance. Servicing can include filter cleaning, performance checks, condensate drainage checks and general inspection.

Why is my air conditioning not cooling properly?

Common reasons include dirty filters, blocked airflow, incorrect settings, low refrigerant, frozen coils, drainage problems, sensor faults or an outdoor unit issue. If your AC is blowing warm air, leaking water, making unusual noise or not cooling the room, it should be checked by a professional.

How can I book air conditioning installation with Citywide Plumbers?

You can book an air conditioning installation, repair or service by calling Citywide Plumbers on 020 3892 8545 or using the booking form on this page. We can discuss your room size, property type, preferred brand and installation requirements before arranging the next step.

Professional Air Conditioning Services in London

Fast Air Conditioning Services for Homes & Businesses

Stay cool and comfortable with reliable air conditioning installation, repairs, servicing and maintenance across London. Citywide Plumbers provides practical AC solutions for homes, offices, shops, rental properties and commercial spaces.

Book AC Service Call Now: 0203 892 8545

AC Installation Efficient cooling systems for domestic and commercial spaces

AC Repairs Fault diagnosis and repair support for common cooling issues

Servicing & Maintenance Keep your air conditioning system clean, efficient and reliable

Which Air Conditioning System Is Right for You?

Choosing the right air conditioning system depends on your room size, property type, budget and how often you need cooling. Citywide Plumbers can help you select a practical AC option for homes, flats, offices, shops and rental properties across London.

1

Wall-Mounted Split AC

A popular choice for bedrooms, living rooms and home offices where quiet, efficient cooling is needed.

2

Multi-Room AC

Suitable when you want cooling in more than one room from a planned system layout.

3

Commercial AC

Ideal for offices, shops, salons and small business spaces that need reliable temperature control.

4

Heating & Cooling

Many modern AC units can cool in summer and provide heating support during colder months.

Air Conditioning for Flats, Bedrooms & Offices

Whether you need cooling for a bedroom, flat, loft room, home office or commercial space, Citywide Plumbers can help plan a suitable air conditioning installation for your London property.

Homes & Flats

Flat & Apartment AC

Suitable AC options for London flats and apartments, with careful attention to outdoor unit position, access, noise and property rules.

Bedrooms

Bedroom Air Conditioning

Quiet wall-mounted AC systems for better sleep during hot weather, ideal for bedrooms, loft rooms and warm upper-floor spaces.

Workspaces

Office & Shop Cooling

Practical cooling solutions for offices, shops, salons, studios and small commercial spaces where comfort matters for staff and customers.

Before installation, we consider room size, insulation, sunlight, glazing, pipe routes, drainage and outdoor unit location to recommend the right air conditioning setup.

Air Conditioning Units We Install

Trusted AC Brands for London Homes & Businesses Daikin, Mitsubishi Electric & LG

Citywide Plumbers can help with air conditioning installation, replacement and setup for reliable wall-mounted split systems. Below are popular brand options suitable for bedrooms, living rooms, offices, shops and rental properties.

Daikin

Daikin Wall-Mounted AC

Premium comfort, quiet operation and strong energy performance.

Daikin systems are a strong choice for homeowners who want a clean wall-mounted unit, efficient cooling and reliable comfort for bedrooms, lounges, garden rooms and office spaces.

2.0–5.0 kW Typical cooling capacity range

From 19 dB Low indoor noise on selected units

Up to A+++ Cooling energy rating on selected models

R32 Common refrigerant on modern split systems

Suitable for bedrooms, lounges and home offices
Smart control options available on selected models
Good choice for quiet and energy-efficient cooling

Mitsubishi Electric

Mitsubishi Electric AC

Reliable split air conditioning for homes, offices and light commercial use.

Mitsubishi Electric is a popular option for consistent comfort, low-noise indoor performance and long-term reliability in London properties, including flats, offices and small commercial spaces.

2.0–6.0 kW Common wall-mounted unit sizing

From 19 dB Quiet indoor operation on selected models

A++ / A+++ High-efficiency options by model

Heat Pump Cooling and heating support available

Strong option for rooms needing stable temperature control
Popular for bedrooms, loft rooms and garden offices
Advanced filtration features available on selected units

LG

LG Wall-Mounted AC

Stylish cooling units with smart control and modern interior appeal.

LG air conditioning units are well suited for customers who want practical cooling with a modern appearance, smart control features and efficient comfort for residential and small business spaces.

2.5–5.0 kW Typical domestic cooling range

From 20 dB Low sound levels on selected ARTCOOL models

A++ / A+++ Efficient options depending on selected model

Wi-Fi Smart control available on selected units

Modern appearance for homes, shops and offices
Smart app control available on selected models
Good balance of design, comfort and cooling performance

Ready to Install Your Air Conditioning?

Book your AC installation today or call Citywide Plumbers now. We can help you choose the right unit, check the room requirements and arrange a professional installation for your London property.

Book AC Installation Call Now: 0203 892 8545

How Our Air Conditioning Installation Works

We keep the air conditioning installation process clear and straightforward, from checking your room to fitting, testing and handing over your new AC system.

1

Property Check

We look at the room size, layout, insulation, sunlight, access and where the indoor and outdoor units can be placed.

2

Right Unit Selection

We help choose a suitable AC unit based on your cooling needs, room type, budget and preferred brand.

3

Safe Installation

The system is installed with attention to pipe routes, drainage, outdoor unit position and electrical requirements.

4

Testing & Handover

Once installed, the AC is checked, tested and explained so you know how to use it efficiently.

Need air conditioning installed in your London home, flat, office or shop?

Book AC Installation

AC Maintenance

Air Conditioning Servicing Checklist

Regular air conditioning servicing helps your system stay clean, efficient and reliable. It can also reduce the risk of weak cooling, water leaks, bad smells and avoidable breakdowns.

Filter cleaning and airflow check
Indoor unit visual inspection
Outdoor unit condition check
Condensate drain check
Cooling performance test
Noise and vibration review
Remote and settings check
General system advice

AC

Keep Your AC Efficient

Book an AC service before peak summer use to help your system perform better when you need it most.

Book AC Service

Safe AC Installation

F-Gas Standard Air Conditioning Installation

Air conditioning systems that use refrigerant must be handled and installed correctly. Citywide Plumbers can arrange professional AC installation support with attention to safe pipe routes, outdoor unit positioning, commissioning and practical setup for London homes and businesses.

Correct refrigerant pipework planning and installation support
Safe indoor and outdoor unit positioning for suitable airflow
Professional commissioning and system performance checks
Practical advice for flats, offices, shops and rental properties

✓

Installed the Right Way

We focus on safe, efficient and suitable AC installation so your system can perform properly from day one.