Air Conditioning Installation London

At Mayfair Plumbers, we install air conditioning across North and Inner London for homes, flats, offices and commercial premises. Wall-mounted split systems, multi-room setups and ducted installations are surveyed properly and quoted at a fixed price before we start. Our own team manages the work from first survey through to final commissioning.
Trustpilot 4.6336 reviews
GGoogle 4.8Google reviews

Air Conditioning Systems We Install

We design and install systems around the rooms, building layout and day-to-day use of the property — not around a one-size-fits-all package.

Wall-mounted split systems

A practical choice for a bedroom, living room, home office or commercial space. One indoor unit connects to one discreet outdoor unit.

Multi-split systems

Several indoor units connect to one outdoor condenser, giving separate control across multiple rooms.

Ducted air conditioning

A concealed option for larger homes, refurbishments and commercial premises, using discreet grilles.

  • Residential and commercial
  • New and replacement systems
  • Pipework, drainage and electrics
  • Commissioning and guidance
Fixed quoteAgreed before installation begins
One accountable teamSurvey through to commissioning
North & Inner LondonResidential and commercial work
Clear handoverTesting, controls and guidance included

Our Air Conditioning Installation Process

1. Initial conversation

Tell us which rooms you need to cool or heat, how the property is used and whether the project is for a home, office or commercial space.

2. Site survey

We assess room sizes, likely heat loads, suitable indoor-unit positions, outdoor-unit locations, pipe routes, condensate drainage and electrical requirements.

3. Written recommendation and fixed quote

You receive a clear proposal covering the recommended system, installation scope and agreed price. If the scope changes, we discuss it before proceeding.

4. Installation

Our team installs the indoor and outdoor equipment, pipework, drainage and controls, protecting the working area and keeping disruption to a minimum.

5. Testing and handover

We pressure-test, commission and demonstrate the system, including controls, useful settings and straightforward care guidance.

Why Choose Mayfair Plumbers for Your Installation

Clear planning at the start prevents expensive surprises later. Here is what is included in our installation approach.

What mattersMayfair PlumbersTypical experience
Survey before quotingOn-site assessmentPhone estimate
System sizingRoom-by-room recommendationBased mainly on floor area
PricingWritten fixed quoteEstimate can change
Electrical workPlanned with the installationMay be left to arrange
HandoverTested, commissioned and explainedVaries by installer

Replacing an Existing Air Conditioning System

If an older system is noisy, unreliable, inefficient or no longer suitable for the rooms it serves, we can assess whether repair or replacement is the better long-term option.

Where replacement makes sense, we review the existing pipe routes, electrics, drainage and outdoor position. Some infrastructure may be reusable, but we only retain it when it is compatible and in suitable condition.

  • Removal of redundant indoor and outdoor equipment

  • Updated system sizing and layout advice

  • Options for quieter, more efficient equipment

  • Testing, commissioning and a clean handover

Free survey · No obligation

Get a Fixed Price for Your Air Conditioning Installation

Tell us about the property and the rooms you want cooled. We will call you back, arrange the right next step and provide a clear written proposal before anything is ordered.

  • Fixed-price quotation
  • Residential and commercial installations
  • One team from survey to commissioning
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Air Conditioning Installation FAQs

Do I need a survey before receiving a quote?

For most installations, yes. A survey lets us check system sizing, unit positions, pipe routes, drainage, electrics and access so the quotation reflects the real scope.

Can air conditioning provide heating as well as cooling?

Many modern systems are reversible heat pumps and can provide both. We will explain whether that approach suits the rooms and how you intend to use them.

How long does installation take?

It depends on the number of rooms, system type, routes and access. A straightforward single-room installation is much quicker than a multi-room or ducted project; timing is confirmed with the proposal.

Can you install air conditioning in a flat?

Often, but the outdoor-unit position, permissions, lease restrictions, access and condensate route must be checked first.

Will the installation be disruptive?

Some drilling and routing are required, but careful planning limits disruption. We explain the proposed route and protect work areas before starting.

Do you replace older systems?

Yes. We can assess the existing installation and recommend repair or replacement based on condition, compatibility and likely value.

For most installations, yes. A survey lets us check system sizing, unit positions, pipe routes, drainage, electrics and access so the quotation reflects the real scope.

Many modern systems are reversible heat pumps and can provide both. We will explain whether that approach suits the rooms and how you intend to use them.

It depends on the number of rooms, system type, routes and access. A straightforward single-room installation is much quicker than a multi-room or ducted project; timing is confirmed with the proposal.

Often, but the outdoor-unit position, permissions, lease restrictions, access and condensate route must be checked first.

Some drilling and routing are required, but careful planning limits disruption. We explain the proposed route and protect work areas before starting.

Related Air Conditioning Services

  • Air Conditioning Servicing
    Planned maintenance to support performance, hygiene and reliability.

  • Air Conditioning Repairs
    Fault finding and practical repair advice when a system is not operating correctly.

  • Commercial Air Conditioning
    Installation planning for offices, shops and other commercial premises.

Not sure which service you need? Tell us what the system is doing and we will point you in the right direction.

Rated by London customers

Real Feedback from Mayfair Customers

Existing plumbing and heating reviews are shown temporarily while AC-specific project reviews are collected.

★★★★★

“Clear about their terms and prices from the outset. The engineer arrived when he said he would and carried out the work quickly without leaving a mess.”

Christian Sheldon · Trustpilot
★★★★★

“Professional and polite at all times, and turned up when expected. The area was left clean and everything was working.”

David Davison · Trustpilot
★★★★★

“They called straight away, organised a visit quickly and the engineer was incredibly helpful, friendly and efficient.”

Tom Holmes · Trustpilot

Plan Your Air Conditioning Installation

Start with a proper survey and a clear proposal. Call our team to discuss the property, or book an appointment and we will help you choose the next step.

North and Inner London · Residential and commercial enquiries

What Our Clients Say

We are proud to support our customers across North & Inner London with outstanding plumbing and heating services. Our commitment to excellence, quality and great customer care is what drives us forward.

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