Greater London · Air conditioning repair

Air conditioning repair in Richmond upon Thames, Greater London

We cover Richmond upon Thames for fault finding and repair for split, multi-split, ducted, cassette and VRF air conditioning, whatever the brand. Diagnosis first, a fixed price and proper paperwork when we finish.

  • A unit blowing warm air
  • A flashing light and a system that will not run
  • Water leaking from the unit or through the ceiling

Air conditioning repair for Richmond upon Thames

Leave it or put it right?

The rules on refrigerant affect repairs. Repairing and recharging existing R410A systems is still legal, but R410A is getting scarcer and dearer to buy as the GB phase-down tightens and we weigh that up when we advise you. Getting the work done in Richmond upon Thames before summer avoids the busiest weeks.

The cost depends on the system and the number of rooms or units, the access and what the work involves. You get a fixed price before work begins, so you know where you stand.

Why us?

  • Electrical work covered by our NICEIC approval
  • Clear warranty information from the manufacturer
  • Covering London and the South East
  • 24/7 emergency line for breakdowns

See our cost guide and our accreditations and certificates.

Air conditioning repair in Richmond upon Thames, done properly

When air conditioning stops cooling, leaks water or shows an error code, the symptom rarely tells you the cause. A unit blowing warm air might have a blocked filter, a failed sensor, a fault on the circuit board or a refrigerant leak, so we diagnose before we repair. The work covers ceiling cassettes, multi-split systems and wall-mounted split systems, and people most often call us about rattling, buzzing or grinding noises and frost on the pipework.

In a managed building in Richmond upon Thames, the repair may need booking through the agent or building manager, so let us know who needs to know we are coming. Outdoor units on roofs may need a key, a permit or an escort, which is worth sorting before the visit.

Any work on the refrigerant circuit is recorded: the work carried out, the refrigerant involved and the quantities. Keep the records with the manual and the warranty documents, as a manufacturer or a future engineer may ask to see them.

Place
Richmond upon Thames (TW9, TW10, SW14, TW1)
Wider area
Greater London
Costs
Diagnosis from £75 + VAT
Response
Answered the same working day
Quote
A fixed-price quote up front
Accreditations
NICEIC approved, F-Gas certified
Phone
07833 053749
Updated
30 October 2026

How the visit works

Our engineers bring the tools, gauges and access equipment the job needs. All we ask is clear access to the units, or to where they’ll go, and to the consumer unit. The visit takes as long as the fault needs, from a quick fix to a return visit for parts. Send us a few phone pictures and we can often price a straightforward job in Richmond upon Thames before visiting.

  1. First, a few questions by phone or email about the brand, the fault and anything shown on the controller.
  2. We diagnose on site, checking the codes, electrics, airflow, drain and refrigerant pressures.
  3. Once the cause is found, we explain it and fix the price for the repair.
  4. With your agreement the part is replaced or the fault put right, and refrigerant work goes in the F-Gas log.
  5. The system is run and checked in every mode, and we tell you about anything else we noticed.

Preparing for the visit

  • Keep pets out of the rooms we’re working in
  • Let us know where the consumer unit is
  • Tell us about parking and loading

How to get a quote

For a fixed-price quote, phone 07833 053749 with the address and a few details about the rooms or units involved. A few pictures make it quicker. You’ll hear back from us the same working day.

Ask for a quote

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Richmond upon Thames questions

Do you cover Richmond upon Thames for emergency air conditioning repairs?

Richmond upon Thames is within our area, and the emergency line is open 24/7. Say what the system is doing and whether it shows a code, and we will advise on the next step.

What’s the best way to get a price for air conditioning repair in Richmond upon Thames?

The easiest way is to call 07833 053749 or use the quote form with a few details and photos. We reply the same working day, and the quote is fixed before any work starts.

Will skipping a service affect the warranty?

It can, for some brands. Send us the make and model and we’ll tell you what the manufacturer expects, and book the service at the interval they recommend.

My system uses R410A. Can it still be repaired?

Yes. We find and fix the leak, then recharge with R410A and record it in the F-Gas records and we’ll give you an honest view on whether it’s worth it.

How long will you be on site?

Your quote will say how long we expect to be there. In most cases, it takes as long as the fault needs, from a quick fix to a return visit for parts.

Do you work on all makes?

We install and work on the leading makes, from Mitsubishi Electric, Daikin and Fujitsu to Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. Tell us the make and model and we’ll take it from there.

Why is my air conditioning icing up?

When airflow drops or refrigerant is lost, the coil gets cold enough to ice. A dirty filter is worth checking first, and if it’s clean, the system needs a diagnosis.

What owners can safely do

Do not move, re-route or disconnect units or pipework yourself. Moving a unit involves the refrigerant circuit, so it needs an F-Gas qualified engineer, and the electrical side needs a competent person. Ask us to quote for a move instead.

Refrigerant is off limits for anyone without the right qualifications. Under the F-gas rules, engineers need their own qualifications and the company must be certified, and refrigerant lines can cause cold burns. If you suspect a leak, switch the system off and call us.

Signs you need air conditioning repair in Richmond upon Thames

Water dripping from an indoor unit is typically about the condensate. The drain may be blocked or kinked, the condensate pump may have failed, or the unit may not be level, and ice on the coil that melts can drip too.

Look out for these signs:

  • Air conditioning running but not cooling
  • An error code or flashing light on the unit
  • Weak airflow from the indoor unit

If your system near Richmond station stops in a hot spell, our 24/7 line is open.

What to look for in a quote

  • How extra work would be agreed if they find something unexpected
  • Exactly what the price includes, from supply and fitting to commissioning
  • Which brand and model they’re proposing, and why

Choosing an air con installer

What a repair looks like in Richmond upon Thames

Richmond upon Thames’s centre falls inside the St Matthias Conservation Area. In the mile around Richmond upon Thames’s centre, 18 conservation areas have been designated. Houblon's Almshouses, listed at grade II*, is one of roughly 174 protected buildings and structures in the half-mile around Richmond upon Thames’s centre. We keep it in mind in case a new outdoor unit is ever needed, as protected buildings can need consent for that. About 44% of homes across Richmond upon Thames and its surrounding area were built before 1919, according to the Valuation Office Agency’s council tax figures, and about 56% of households live in flats, according to the last census (2021). Outdoor units serving flats can be awkward to reach, so let us know where yours is. In London buildings, outdoor units can be on roofs or in light wells, so let us know where yours is.

If a system fails at a school such as Marshgate Primary School, our 24/7 line takes the call, and planned repairs can wait for the holidays.

Richmond upon Thames is about 3 miles south of Ealing, in Greater London. Richmond upon Thames gets the same approach as every job we take on: a look at the job first, a fixed-price quote and written records at the end. Our Greater London coverage runs to 764 places, and Richmond upon Thames is one of them. London, roughly 9 miles off, has its own page on this site.

The closest recent job we can point to from Richmond upon Thames was on Richmond Hill, Richmond (TW10), about 1 mile south-west: installing a Mitsubishi Electric Zubadan multi-split system serving four bedrooms, the study and the living room: six indoor units in total.

You will find Richmond upon Thames on the B321 and B322, so it’s easy for us to get to for surveys and visits. Our engineers work on Church Road, King George Square and Topiary Square and the roads around them. We also cover the places around Richmond upon Thames: North Sheen (1 mile north-east), East Sheen (1 mile east), Mortlake (1 mile east), Kew (2 miles north-east) and Strand-on-the-Green (2 miles north-east). Further out, we also cover London (9 miles east), City of Westminster (7 miles north-east), Marylebone (8 miles north-east) and Kensington (5 miles north-east).

Near you in Richmond upon Thames

Typical jobs here are in properties near Pesthouse Common, The White Horse Richmond pub and Kneller Hall Junior School. There’s a railway station in Richmond upon Thames itself: Richmond station. A little further out are Eel Pie Island Museum (1.5 miles south-west) and Treaty Centre (3 miles west). Not far away are Duke's Hollow and Richmond Hill.

Map of Richmond upon Thames © OpenStreetMap contributors

What a customer said

“Office air con broke down in the July heatwave. Called at 8am, engineer was here by noon and fixed within 2 hours. Brilliant emergency response. They now hold the service contract for the whole building.”

James T., Crawley, office manager

F-Gas certified companyRefrigerant work done and recorded properly
NICEIC approvedElectrical work certified
MCS certifiedHeat pump installations
Checkatrade memberVetted trade directory
24/7 emergency lineBased in East Grinstead