Greater London · Air conditioning repair

Air conditioning repair in Greenhill, Greater London

Air conditioning repair in Greenhill from an F-Gas certified company, with warranty terms explained brand by brand. Enquiries answered the same working day.

  • Drips from the indoor unit
  • Weak airflow from the indoor unit
  • A system that runs but does not cool the room

Air conditioning repair in Greenhill

About our air conditioning repair in Greenhill

Older systems raise a fair question: repair or replace?. A fan fault on an older unit can be worth fixing, while a compressor failure may tip the balance. We look at the fault, the parts, the refrigerant and how well the system suits the room, then give you an honest view. If the problem is a noisy indoor or outdoor unit and a unit that barely blows any air, we can help.

Many buildings in Greenhill have a managing agent or security desk, so tell us who controls access. Outdoor units on roofs may need a key, a permit or an escort, and we plan for that before we arrive.

Warranty periods vary by brand and by product. Daikin, for instance, gives a standard 2 years on split air conditioning, with longer extensions only on its air-to-water heat pumps. For any other brand, we explain the manufacturer’s terms on your quote.

Where
Greenhill (NW3, NW6)
Wider area
Greater London
Prices
£75 + VAT call-out, then a fixed repair price
Approvals
NICEIC approved, F-Gas certified
Quote
Fixed, in writing
Call
07833 053749
Checked
30 October 2026

The process

Where something has to be switched off during the work, we agree it with you first, so you can plan around it. For businesses, we can normally work room by room or zone by zone. The work takes anything from an hour or so to a full day, depending on the fault and the parts. Photos of the room and where the outdoor unit could go let us plan most of a visit to Greenhill in advance.

  1. Diagnose: test the system until the cause is clear.
  2. Next, a plain explanation and a fixed price.
  3. If the repair isn’t worth doing, we say so and explain the options.
  4. The treatment: the repair itself, with any leak found and fixed before recharging.
  5. Sign off: prove it works and record the visit.

How to prepare

  • Make sure we can reach the consumer unit or fuse board
  • Let us know if the units are on a roof, a high wall or in a locked area
  • Let us know where we can park and unload

Get a fixed-price quote

Photos are enough for some jobs; others need a visit first. Bigger systems, commercial sites and awkward pipe routes are normally surveyed on site. Either way, the quote is fixed before anything goes ahead.

Get a quick quote

Advice

Air conditioning repair around Greenhill

About 65% of homes across Greenhill and its surrounding area were built before 1919, according to Valuation Office Agency council tax records, and about 80% of households live in flats, according to the last census (2021). If you live in a flat, mention any roof hatch, balcony or managing agent we’ll need to get to the outdoor unit. In London buildings, outdoor units can be on roofs or in light wells, so let us know where yours is. The centre of Greenhill lies within the Fitzjohns Netherhall Conservation Area. There are 11 conservation areas within a mile of the centre of Greenhill. About 450 listed entries lie within half a mile of central Greenhill, Institute of St Marcellina (grade I) among them. Swapping an outdoor unit on a listed building or in a conservation area may need consent, so we’ll flag it if a replacement is needed.

For a home or office near Hampstead Heath station, tell us the make, model and error code when you call, so we can plan the repair. If a system fails at a school such as The Royal School, our 24/7 line takes the call, and planned repairs can wait for the holidays.

Greenhill is about 1 mile north-east of Hampstead, in Greater London. Our engineers cover Greenhill for air conditioning repair and across the rest of Greater London. In Greater London alone we list 764 places, and Greenhill is one.

Our nearest recent job to Greenhill was on East Hill, Wandsworth (SW18), about 7 miles south: installing a Daikin wall-mounted unit in the open-plan living area.

Our working area takes in NW3 and NW6 in full. From Back Lane, Well Road and Ornan Road to the smaller roads in between, nowhere is left out. If you are just outside Greenhill, we cover Hampstead (1 mile south-west), Vale of Health (1 mile north), West Hampstead (1 mile west), Fortune Green (1 mile west) and Haverstock (1 mile south-east). We also work in nearby towns such as London (5 miles south-east), City of Westminster (3 miles south), Marylebone (3 miles south-east) and Kensington (4 miles south).

Around Greenhill

We fit and service air conditioning in homes and premises around Cecil Sharp House, Fitzjohn's Primary School and King William IV Public House. Other local landmarks include South Hampstead High School (0.6 miles south) and Hampstead Heath (0.7 miles north-east). There’s a railway station in Greenhill itself: Hampstead Heath station. Other landmarks nearby include New End Hospital (within half a mile north-west) and Montfichet's Tower (4.3 miles south-east). Open spaces near Greenhill include Belsize Wood and Parliament Hill.

Map of Greenhill © OpenStreetMap contributors

Your questions about air conditioning repair in Greenhill

Is there an emergency air con repair line for Greenhill?

Yes: ring the emergency line, day or night, from anywhere in Greenhill. Tell us the make, model and any error code when you call; repair call-outs start from £75 + VAT.

Do you cover Greenhill for air conditioning repair?

Yes, Greenhill is within the area we cover. Just phone us on 07833 053749 or drop us a line with a few details.

Is it legal to repair an R410A system?

Yes. Repairing and recharging existing R410A systems is still legal. As the GB phase-down continues, R410A is getting harder and dearer to buy, so for older systems we compare the cost of a repair with a replacement.

Are you F-Gas certified?

As the law requires for refrigerant work, we’re an F-Gas certified company. NICEIC approval, MCS certification for heat pumps and Checkatrade membership sit alongside it.

Who has to arrange F-Gas leak checks?

Responsibility is shared between the operator, typically whoever owns or controls the equipment, and the service technicians. How often depends on the size of the refrigerant charge in tonnes of CO2 equivalent: at least every 12 months from 5 tCO2e, and every 6 months from 50 tCO2e.

What can I do with an old R22 system?

Replacement is usually the better answer. New R22 cannot be used to service systems, and parts for older units are getting harder to find, so we’ll quote for a modern replacement and explain why.

What does an air con repair cost?

It starts with a diagnosis call-out from £75 + VAT, and then you get a fixed price for the repair. You decide before any repair work starts.

Why deal with it now?

If your air conditioning in Greenhill has developed a fault, it’s worth booking a diagnosis now. The visit takes anything from an hour or so to a full day, depending on the fault and the parts, and you get a fixed price for the repair before any work goes ahead, with a 24/7 line for emergencies. Approvals for flats in Greenhill can take longer than the install itself.

The price reflects the work, not guesswork. That’s why every job is looked at first, and why the quote is fixed before work begins.

Why book with us

  • NICEIC approved for electrical work
  • MCS certification for heat pump work
  • F-Gas company certification
  • Manufacturer’s warranty terms explained on your quote

See our cost guide and our accreditations and certificates.

Before you call an engineer

Write down what you notice: an error code, a new noise, a drip, a smell or a change in how well the system heats or cools. It helps us diagnose quickly, and a photo or a short video of the display is even better.

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 escaping refrigerant can cause cold burns. If you suspect a leak, switch the system off and call us.

Pricing air conditioning repair in Greenhill

Some jobs are bigger than they look, and some smaller. The main factors:

  • Whether it’s a simple split or a larger system
  • The distance and route between the indoor and outdoor units
  • How many units are involved

Height, access and the distance between the indoor and outdoor units can all change the price. We take each of them into account, and the price is fixed before we start.

What we need to know

When you call or email, these details help:

  • Photos showing the indoor unit and the space around it
  • Your installation or service records
  • The remote or wall controller showing any error

Our prices page gives typical ranges, but your quote is based on your job, because no two buildings, rooms or systems are the same. After a look at the job, by photos or a survey, the price is fixed. To start, give us a ring on 07833 053749 or write to us at info@aircondoctor.co.uk.

From one of our customers

“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