Air conditioning installation in London

Survey, supply, installation and electrical connection of wall-mounted air conditioning for homes and offices across London.

Air conditioning

Cooling fitted and connected by one team

Air conditioning needs a refrigeration installer and an electrician. Both are ours, so the indoor unit, the outdoor condenser, the pipework and the electrical supply are handled on one visit and signed off together.

What’s involved in a proper air conditioning install

A wall-mounted air conditioning system needs more than just mounting a box on the wall: it means correctly sizing the unit for the room, running refrigerant pipework between the indoor and outdoor units, and wiring a dedicated electrical supply, all without leaks or vibration issues down the line.

Because we cover both refrigeration and electrical work in house, the whole installation, indoor unit, outdoor condenser, pipework and electrics, is carried out and signed off on a single visit, rather than coordinating two separate contractors. We install and service systems for homes and offices across London.

White wall-mounted air conditioning unit in a modern living room
Air conditioning installation by a Plumbery engineer in London
Air conditioning installation

What the installation includes

Every stage below is part of the job and has its own page. Nothing is subcontracted out.

Survey and unit sizing

We measure the room and specify a unit that suits it.

Indoor unit installation

Wall-mounted indoor unit fitted, levelled and sealed.

Outdoor condenser mounting

Brackets or feet, positioned for airflow and low noise.

Pipework and drainage

Refrigerant lines and condensate run, boxed in where needed.

Electrical connection

Dedicated supply and isolation, wired by our own electrician.

Commissioning and handover

Pressure test, vacuum, charge, then we show you the controls.

One team, five trades

Plumbing, gas, electrics, refurbishment and air conditioning, all in house.

Published rates

Our prices are listed in full by time band, before you book.

Evenings and weekends

We work 8am to 10pm Monday to Saturday and 8am to 6pm on Sundays.

Paperwork included

Gas safety certificates and electrical records on completion.

Schedule a visit, or send us your questions

Know the price before we start

Every service on this site has a published rate by time band. Check what your job costs, then book the slot that suits you.

Air conditioning installation in London, start to finish

Plumbery installs wall-mounted air conditioning for homes and offices across London. One team surveys the room, fits the indoor and outdoor units, runs the pipework and condensate drain, makes the electrical connection and commissions the system, so you deal with one company from the first visit to handover.

Every stage has its own page, so you can see exactly what is done and in what order:

How to choose the right air conditioning unit

The right unit depends on the size and height of the room, how much sun it gets, how well it is insulated and how much heat people and equipment add. A unit that is too small never reaches the temperature you set. One that is too large cools quickly, then switches off before it has removed enough moisture, so the room feels clammy. We check all of this at the air conditioning survey and recommend a capacity from the measurements, not from a guess.

Air conditioning for flats, offices and listed buildings

Flats and leasehold properties may need consent from the freeholder before an outdoor unit goes on the wall, and conservation areas or listed buildings can have rules about the outside of the property. We flag these at the survey so nothing holds up the installation. For offices we work 8am to 10pm, Monday to Saturday, so the work can be planned around your opening hours. Our rates are published by time band on the pricing page.

Air conditioning installation questions

How much does air conditioning installation cost in London?

Labour is charged at our published rates by time band, which you can check on the pricing page before you book. The unit and materials are added after the survey, so you know the full figure before any work starts.

How long does an air conditioning installation take?

It depends on the system and the property. The survey settles the pipe route, the outdoor unit position and the electrical supply, and we give you a realistic timescale from that.

Do you do the electrical work as well?

Yes. Refrigeration and electrical work are both done by our own team, so the dedicated supply, isolator and interconnecting cable are wired and tested as part of the same installation.

Do I need permission to install air conditioning?

Leasehold flats may need consent from the freeholder or management company, and conservation areas and listed buildings can have rules about outdoor units. We tell you what to check at the survey, before the installation is booked.

Which areas of London do you cover?

We cover Greater London, everywhere inside the M25, and we work 8am to 10pm, Monday to Saturday.

What happens when the installation is finished?

We commission the system with a vacuum, leak check, refrigerant charge and full test, then walk you through the controls and hand over the paperwork.

Published rates

Air conditioning hourly rates in London

You pay a first-hour rate, then a lower rate for each extra half hour. The rate depends on the day and time of the visit.

Air conditioningMon–Fri 8am–6pmMon–Fri 6pm–10pmSaturday 8am–6pmSunday 8am–6pm
First hour£85£88£88£98
Each extra half hour£42£45£50£52
Daily rate£495———

Rates apply to jobs inside the M25. Minimum charges apply. Materials are charged in addition to labour, and shopping time for materials is charged at £35 per hour. See the full rate card.

Areas we cover

Plumbers, gas engineers and electricians in every London borough

We attend jobs in all 32 London boroughs and the City of London, and anywhere inside the M25. If you are unsure whether we cover your postcode, call 07353 373753.

  • Barking and Dagenham
  • Barnet
  • Bexley
  • Brent
  • Bromley
  • Camden
  • City of London
  • Croydon
  • Ealing
  • Enfield
  • Greenwich
  • Hackney
  • Hammersmith and Fulham
  • Haringey
  • Harrow
  • Havering
  • Hillingdon
  • Hounslow
  • Islington
  • Kensington and Chelsea
  • Kingston upon Thames
  • Lambeth
  • Lewisham
  • Merton
  • Newham
  • Redbridge
  • Richmond upon Thames
  • Southwark
  • Sutton
  • Tower Hamlets
  • Waltham Forest
  • Wandsworth
  • Westminster

Why Plumbery

Qualified, insured and upfront about price

Every engineer we send is registered or qualified for the trade they work in, and you can check the details before anyone starts.

  • Gas Safe registeredGas and heating work is done by Gas Safe registered engineers.
  • NICEIC qualifiedElectrical work is done by NICEIC-qualified electricians.
  • F-Gas certifiedAir conditioning work is done by F-Gas certified engineers.
  • Fully insuredEvery job is covered by our insurance.
  • Rates published in advanceOur hourly rates are on the pricing page. Nothing starts until you agree the rate.
  • Paperwork includedGas safety certificates and electrical records are provided on completion.
  • Registered companyPlumbery Ltd, company no. 11677583, registered in England and Wales.