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FAIRMONTMECHANICAL GROUP
07404 094390

Commercial

Air Handling Unit (AHU) Installation & Servicing London

AHU installation, fault-finding and planned servicing for offices, kitchens and commercial buildings.

Call 07404 094390Request a survey

Some of the brands we install, service and repair

  • Carrier logo
  • FläktGroup logo
  • TROX logo

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

Air handling units are the lungs of a commercial building, and they are usually only noticed once they stop. We install, service and repair AHUs for offices, kitchens and mixed-use buildings — including belts, bearings, filters, coils and controls.

What we cover

  • AHU installation and replacement
  • Planned servicing and filter changes
  • Belt, bearing and motor replacement
  • Coil cleaning and condensate
  • Controls and BMS interface faults
  • Kitchen extract and supply systems
  • Installation
  • Repairs
  • Servicing
Fairmont air handling units (ahu) work in London

Other ventilation services

← All ventilation services

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.

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