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F-GAS & GAS SAFE REGISTERED · LONDON-WIDE

From 32° to 18° — usually before teatime.

Fast Air Con Installation Services fits and maintains residential and commercial air conditioning across London. Most split systems are surveyed, fitted and commissioned in a single visit, by engineers who actually carry the tools.

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Same-day fixed quotes
24-hour emergency line
10-year installer warranty
Wall-mounted air conditioning unit, freshly installed
Live cooldown
32°C → 18°C
RECENT INSTALL — HOUNSLOW
4.6kW split system, fitted in one day
ABOUT US

Fast Air Con Installation and Services

We're a family-run plumbing and heating company, founded in West London and built on one simple principle:
Do the job right, be honest, and treat every home like our own.

What started with our founder Gurminder answering emergency calls at 2am has grown into a trusted nationwide service — without ever losing our values.

No sales pressure. No shortcuts. Just reliable service you can trust.

10+Years of experience
1,500+Jobs completed
4.9Average rating
90%First-visit fix rate
24/7Available 365 days

Our Aim & Mission

Our aim is to provide fast, dependable, and transparent plumbing and heating solutions. Our mission is to put customer safety, comfort, and trust at the heart of everything we do. We strive to deliver lasting quality through skilled engineers and honest service.

Our Great Vision

Our vision is to deliver reliable, honest, and high-quality plumbing and heating services across England. We aim to set the standard for customer trust, rapid response, and expert workmanship. Every service we provide is driven by care, professionalism, and long-term value.

WHAT WE FIT

One engineer, every job — from a single bedroom split to a full office floor.

Every install is sized properly first: room volume, glazing, occupancy and heat load, not a unit picked by wall space alone.

Wall-mounted split air conditioning unit

Split system install

Single wall-mounted units for bedrooms, home offices and lounges. Typically fitted and running same day.

Multiple indoor air conditioning units

Multi-split & VRF

One outdoor condenser feeding several rooms — the cleanest option for whole-home cooling.

Commercial building requiring air conditioning

Commercial & office AC

Retail units, server rooms and open-plan offices, scoped around your operating hours, not ours.

Row of outdoor air conditioning condenser units

Servicing & regas

Annual filter clean, coil check and refrigerant top-up — keeps efficiency and warranty intact.

Air conditioning units mounted on brick building exterior

24-hour emergency repair

Unit dropped out mid-summer? A real engineer picks up, day or night, across London.

Refrigerant pipework on building exterior

Air quality & ventilation

Filtration upgrades and MVHR/extraction for rooms that need fresh air, not just cold air.

REVIEWS

4.9 average rating, from 1,500+ completed jobs.

A few examples of the feedback we hear most — genuine reviews will replace these once you point this at your review platform.

★★★★★

"Turned up on time, explained everything before starting, and the split unit was running by early afternoon. No pushy upsell, just did the job."

— D.K., Hounslow

★★★★★

"Our old system was fixed on the same call-out. Honest about what actually needed replacing instead of selling us a new unit."

— R.P., Ealing

★★★★★

"Fitted air con across three offices with barely any disruption to the working day. Clean work, tidy cabling, no mess left behind."

— S.A., Chiswick

FAQ

Questions we get asked most.

HOW AN INSTALL RUNS

Four visits' worth of work, done in one.

No return trips for "the part we forgot." Survey, fit, commission and handover happen in a single scheduled window.

01

Survey & sizing

An engineer measures the room, checks glazing and wall access, and calculates the BTU load needed — then gives a fixed price on the spot.

SAME DAY
02

Install day

Indoor and outdoor units are mounted, pipework is routed and insulated, and the electrical spur is connected.

4–6 HRS AVG
03

Commission & test

The system is pressure tested, vacuum pulled, refrigerant charged to spec, and running temperatures are verified against the design load.

ON-SITE
04

Handover & cover

You get a walkthrough of the controls, warranty registration, and your first annual service booked in.

10-YEAR WARRANTY
6 hrsAverage install, start to running
24/7Emergency call-out line
10 yrInstaller warranty on parts & labour
F-Gas& Gas Safe certified engineers
PRICING

Straightforward packages, no hidden extras.

Indicative starting prices — every job is confirmed with a fixed quote after a free on-site survey.

Single Room
from £1,200

One split unit, sized for the room, fitted in a single visit.

  • Up to 3.5kW wall-mounted unit
  • F-Gas certified installation
  • Fixed price after survey
  • 10-year installer warranty
Get an estimate
Multi-Room
from £2,800

Multi-split system covering 2–4 rooms from one outdoor condenser.

  • Up to 4 indoor units
  • Independent room control
  • Fixed price after survey
  • 10-year installer warranty
Get an estimate
Commercial
Custom quote

Offices, retail and server rooms — scoped around your operating hours.

  • VRF / ducted / multi-split
  • Out-of-hours install available
  • Scheduled maintenance included
  • 10-year installer warranty
Request a site visit
INSTANT ESTIMATE

Get a rough price in 10 seconds.

A starting point only — your fixed price is confirmed after a free survey.

Estimated range
£1,200 – £1,600
Confirm with a free survey
COVERAGE AREA

Based in Hounslow, working right across London.

Most call-outs and installs across west and central London are scheduled within the week — often the same day for emergencies.

HounslowBrentfordEaling ChiswickRichmondTwickenham IsleworthFelthamCentral London
READY WHEN YOU ARE

Get a fixed install price, today.

Tell us the room and we'll size the right unit, quote a fixed price, and usually have you booked in for this week.