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FAIRMONTMECHANICAL GROUP

Commercial & domestic

Air Source Heat Pump Installation & Servicing London

Air source heat pump installation and ongoing maintenance, sized after a site survey.

Some of the brands we install, service and repair

  • Baxi logo
  • Daikin logo
  • Glow-worm logo
  • Mitsubishi Electric logo
  • Potterton logo
  • Vaillant logo
  • Viessmann logo
  • Worcester Bosch logo

We work on most other makes too. If yours is not listed, just ask.

A heat pump has to be sized to the building, not chosen from a list — get it wrong and it either cannot keep up in winter or cycles inefficiently all year. We survey the property first, look at heat loss, emitters and pipework, then quote a system that will actually perform. We also service and repair existing installations.

What we cover

  • Heat loss survey and system sizing
  • Air source heat pump installation
  • Emitter and pipework upgrades where needed
  • Commissioning and handover
  • Annual servicing
  • Fault-finding and repair on existing systems
  • Installation
  • Repairs
  • Servicing
Fairmont heat pumps work in London

Pricing

Transparent pricing

Clear call-out fees, no surprises

  • Most common

    Weekday — Daytime

    Mon–Fri · 8am – 7pm

    £150

    call-out

    Includes the first 60 minutes of labour

  • Weekday — Evening

    Mon–Fri · 7pm – midnight

    £180

    call-out

    Includes the first 60 minutes of labour

  • Weekend

    Sat–Sun · 8am – midnight

    £195

    call-out

    Includes the first 60 minutes of labour

How our pricing works

Additional time
£85 per hour after the first hour, billed in 15-minute increments (£21.25 each) — you only pay for the time you use.
Parts charged separately
Any parts are quoted and supplied only with your approval, so you stay in control of the cost.
Call-out fee
A call-out fee applies to every visit. New customers settle the call-out fee after the visit.
Payment
Card payment taken on site, and we always provide an invoice.

Installing something new?

Installations are not priced from a list. Boilers, heat pumps, air conditioning, MVHR and coldrooms all have to be sized and specified for the building, so we survey the site first and give you a fixed written quote. The survey is free.

Request a free survey

We respond to survey requests within 24 hours.

Contact

Get in touch

Broken down? Call or message us — that is always fastest. For installations and quotes, send us the details and we will arrange a free survey.

Opening hours
8am – midnight, 7 days a week
Same-day attendance across London