MetroCool

MetroCool: fixed-price air conditioning installation in London

MetroCool is an air conditioning installation company operating across Greater London and all towns inside the M25. Its approach focuses on offering a fixed, all-in price — including VAT and installation — visible on screen in around 60 seconds, without needing to provide an email address or phone number to view it. The company presents itself as a specialist in flats and period buildings, with tidy, fast installations, and states that most jobs are completed in a single day.

Booking process and coverage

The customer enters their postcode, property type, the rooms they want cooled, and the planned location of the units. They then receive a fixed quote including VAT and installation. To book the installation date, a 50% deposit of the total is paid, which covers the purchase and delivery of the equipment; the balance is settled once the work is complete. The company covers all London postcodes (E, EC, N, NW, SE, SW, W and WC) and surrounding towns inside the M25, such as Watford, Enfield, Barnet, Harrow, Uxbridge, Romford, Ilford, Bromley, Croydon, Sutton, Kingston, Twickenham, Richmond and Dartford.

Systems installed

MetroCool works with Mitsubishi Heavy Industries (MHI) R32 technology equipment, which comes with a five-year manufacturer's parts warranty. The company is registered with REFCOM and its engineers hold F-Gas certification to handle refrigerants. The available systems are:

• Single split: one indoor unit paired with one outdoor unit, designed for a bedroom, office or living room.
• Multi split: several indoor units connected to a single outdoor unit to cool multiple rooms.
• Portable: with window vent, listed as coming soon, for flats where a fixed installation is not possible.

In multi split systems, a single outdoor unit can power up to three indoor units. All installed equipment are reverse-cycle heat pumps, so they also heat in winter.

Certifications, warranties and maintenance

Installations are carried out by F-Gas certified engineers and the work is fully insured. A certificate is provided after installation. The manufacturer's parts warranty is five years, conditional on the installation following MHI guidelines and the equipment receiving regular maintenance. MetroCool's workmanship is warranted for 12 months. The company recommends an annual service and offers to quote for it separately.

Frequently asked questions about installation

The company clarifies that the online price is fixed and includes VAT and installation, with no hidden extras. A single-room installation is typically completed in one day; multi-room systems take a little longer depending on the number of units and pipework routing. A hole of around 65 mm must be made in an exterior wall to route the refrigerant pipes, which is sealed afterwards. Someone over 18 must be present during the installation. For equipment replacing existing units, MetroCool removes and disposes of the old one if indicated at the time of booking.

Regarding permissions, most homes in England do not need an application, as the systems are reverse-cycle heat pumps and usually count as permitted development if the outdoor unit meets the standard size and siting limits. Permission may be required for listed buildings, conservation areas — especially on road-facing walls — and some flats; for rented properties, the landlord's consent is needed. The company advises before booking in special cases.

Efficiency, noise and running costs

The installed systems have a SCOP (seasonal coefficient of performance) of between 3.5 and 5, meaning they provide between 3.5 and 5 units of heating or cooling for each unit of electricity consumed. The electrical running cost is estimated at £0.20–£0.40 per hour. Indoor units operate at 19–25 dB and outdoor units at 45–50 dB. The R32 refrigerant used has a global warming potential (GWP) of 675, approximately one third of the R410A it replaces (GWP 2,088), and requires smaller charges for the same cooling capacity.

Payment and tracking

Payment can be made by card, Apple Pay, Google Pay or Revolut Pay. At checkout, there is an option to split the amount with Klarna Pay in 3, interest-free and subject to approval. The 50% deposit secures the installation date and the balance is paid on completion. Once the installation is booked, the customer can track the order status on the website by entering the order number and installation postcode, and will see the stages: deposit paid, unit ordered, unit delivered and installed.

Corporate details and customer service

MetroCool is a trading name of Lin & Song Ltd, a company registered in England and Wales with number 14924756. Its registered office is 49 Fairmount Road, London SW2 2BJ, and its VAT number is 494809442. Phone and WhatsApp support is available every day from 8:00 to 20:00, and you can also contact us by email.

Location and contact

49 Fairmount Road, London SW2 2BJ