Greater London · Air conditioning repair
Air con repairs in Dulwich
Expert air conditioning repair for Dulwich: diagnosis first, then a fixed-price quote, the work and written records. Ask us for a fixed-price quote.
- A system that runs but does not cool the room
- A fault code on the display
- Water leaking from the unit or through the ceiling
About our air conditioning repair in Dulwich
We treat a faulty system the way a doctor treats a patient: diagnose the cause, treat it properly and sign it off when it’s working. Guessing is expensive, and replacing a board when the fault is a sensor leaves the problem in place. The work covers heat pumps, VRF systems and multi-split systems, and people most often call us about air conditioning running but not cooling and rattling, buzzing or grinding noises.
In Dulwich, as across London, air conditioning works hard in hot spells, which is when weak cooling, leaks and error codes tend to appear. The error code on the display, the make and the model are the most useful things to send us.
Refrigerant work is written up in the F-Gas records: what was done, the refrigerant type and any amount added or recovered. Keep the records with the manual and the warranty documents, as a manufacturer or a future engineer may ask to see them.
- Place
- Dulwich (SE22, SE21, SE23)
- Wider area
- Greater London
- Pricing
- A fixed-price quote up front
- Response
- We reply the same working day
- Accreditations
- F-Gas certified company, NICEIC approved
- Costs
- Call-out from £75 + VAT
- Phone
- 07833 053749
- Page updated
- 30 October 2026
Aftercare tips
Every system needs looking after, and most of it is easy. A few tips:
- Keep the outdoor unit clear of leaves and clutter
- Turn the system off if it’s dripping water
- If there’s ice on the pipes, switch off and let it melt
If a repair does not make sense, you will hear it from us, with the reasons. If replacement is the better option, we can quote for it on the same visit.
Don’t ignore early signs. A drip, a new noise, a weaker airflow or an occasional error code is often the first sign of a fault and catching it early keeps the repair simpler.
Managing agents and facilities teams in Dulwich
Larger air conditioning systems in buildings need more than servicing: a TM44 inspection by an accredited energy assessor is required at least every 5 years for systems over 12 kW. We arrange the inspection, get the system ready and put right anything it picks up.
Under the GB F-gas rules, responsibility for leak checks is shared between whoever operates the equipment and the engineers who work on it. In a let or managed building, it’s worth agreeing who that operator is, and we can work for either side.
What a repair looks like in Dulwich
The middle of Dulwich is part of the Dulwich Wood Conservation Area. There are 3 conservation areas within a mile of the centre of Dulwich. Historic England lists about 66 buildings and structures within half a mile of the centre of Dulwich, including Bell House (grade II*). If a repair turns into a replacement on a listed building or in a conservation area, we check the planning position before changing the outdoor unit. About 73% of homes in the Dulwich area were built before 1919, according to VOA council tax data, and about 54% of households live in flats, according to the last census (2021). In flats, outdoor units are often on balconies, roofs or high walls, so tell us how we reach yours. London repairs often depend on reaching the outdoor unit, so access details help us plan.
For a school like St Anthony's Catholic Primary School, urgent repairs can be booked right away and bigger work in the holidays. Shops and offices around West Dulwich station often cannot wait for cooling to come back, which is what the 24/7 line is for.
Dulwich is about 1 mile south-east of Herne Hill, in Greater London. Anywhere in SE22, our engineers can take on air conditioning repair. Our list for Greater London has 764 entries, and Dulwich is one.
The closest recent job we can point to from Dulwich was on Church Road, Crystal Palace (SE19), about 2 miles south: installing three LG cassette units in the main bar and dining area and a wall-mounted unit in the kitchen.
With the A2216 close by, Dulwich is easy for our engineers to reach for visits of every kind. From Court Lane, Druce Road and Boxall Road to the smaller roads in between, nowhere is left out. Places around Dulwich that are also on our list: Dulwich Village (1 mile north-west), West Dulwich (1 mile south), Herne Hill (1 mile north-west), Sydenham Hill (1 mile south-east) and Forest Hill (1 mile east). Larger places within reach include London (4 miles north), City of Westminster (6 miles north-west), Marylebone (6 miles north-west) and Kensington (7 miles north-west).
What’s near Dulwich
Typical jobs here are in properties near The Crown and Greyhound pub, Dulwich Park and Alleyn's School, among other places. The nearest railway station is West Dulwich station, about 0.7 miles south-west of the centre. A little further out are Dulwich Community Hospital (0.9 miles north) and Greenwich Castle (4 miles north-east). Not far away are Knight's Hill and Centre for Wildlife Gardening.
When something else is needed
Before booking, it helps to know what’s not included:
- No power to the building at all
- A room that overheats because of the building, such as a lack of shading or ventilation (the system may need help, not a repair)
- A system that was undersized for the room in the first place (that needs a bigger system, not a repair)
Not sure which it is? You can ring 07833 053749 or fill in the contact form and we’ll tell you honestly.
Where we work
- VRF systems
- Multi-split systems
- Wall-mounted split systems
- Ducted systems
- Heat pumps
- Ceiling cassettes
Common questions in Dulwich
Is Dulwich in your area for air conditioning repair?
We do: Dulwich falls inside our working area. To start, ring 07833 053749, or email if that’s easier with a few photos.
Who do I call if my air conditioning fails in Dulwich out of hours?
Yes: ring the emergency line, day or night, from anywhere in Dulwich. Tell us the make, model and any error code when you call; repair call-outs start from £75 + VAT.
Can landlords and managing agents book you?
Yes. From one rented home to commercial buildings, we work the same way: a look first, a fixed-price quote and written records.
Do you work on all makes?
We install and work on the leading makes, including Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. Tell us the make and model and we will take it from there.
Why does F-Gas certification matter?
F-Gas certification shows a company is approved to work on equipment containing fluorinated gases, such as the refrigerant in air conditioning and heat pumps. In Great Britain, that certification is a legal requirement, not an optional extra, and we hold it.
Can you repair an R22 air conditioning system?
R22 is an ozone-depleting refrigerant, and new R22 cannot be used for servicing. A fault that doesn’t involve the refrigerant may still be repairable, depending on parts, but a leak normally makes replacement the sensible route. We’ll set out the options and quote for a replacement where it makes sense.
Do you provide F-Gas records?
Yes. You get a written record of every visit, including F-Gas records for any refrigerant work. File them with the system’s paperwork.
What we do, step by step
Anything involving refrigerant is handled by F-Gas qualified engineers, as the law requires, and electrical work is done by us as NICEIC approved contractors. So on the day, you do not need a separate electrician for the electrical side. On site, it takes as long as the fault needs, from a quick fix to a return visit for parts. Send us a few phone photos and we can often price a straightforward job in Dulwich before visiting.
- Describe the problem and the brand, and mention any code on the display.
- On the diagnosis visit, we test the electrics, airflow, drain and refrigerant.
- You get the cause explained and a fixed price for the repair.
- Once you’re happy, the repair is done and any refrigerant work recorded.
- We test the system in operation and leave you a note of the fault and the fix.
Before we arrive
- Let us know if the units are on a roof, a high wall or in a locked area
- Plan for pets to be kept clear during the visit
- Let us know where the consumer unit is
How to get a quote
Our prices page gives typical ranges, but your quote is based on your job, because every property is different. Once we’ve looked at the job, from photos or on a survey, you get a fixed price. To get going, ring us on 07833 053749.
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A customer’s words
“Very professional from the initial survey through to installation. The engineer explained everything clearly and the quote was exactly what we paid. Would not hesitate to recommend AirCon Doctor.”
David W., Haywards Heath