Coldharbour AirAir conditioning repair and installation across south London
We fit, fix and service split and multi-split systems in homes and small businesses from Brixton to Dulwich. Every job gets a written quote before work starts, and refrigerant is always handled by F-Gas certified engineers.
Request a quote
We'll call back to ask a few details and, if needed, arrange a visit or free phone quote.
What we do
Eight jobs cover most of what comes through our phone line, from a single wall unit to a full office system.
Split System InstallationA wall-mounted unit fitted properly, ready before the first warm spell.from £850 per unit
Air Conditioning RepairUnit blowing warm, dripping or making a racket, we find out why.from £90 per visit
Annual AC ServicingA once-a-year check that keeps the unit running through the summer.from £75 per unit
Refrigerant RegasTopping up the gas that makes the unit actually cool.from £120 per unit
AC Removal and DisposalTaking out an old unit properly, gas recovered, nothing left behind.from £60 per unit
Multi-Split and Commercial SystemsSeveral rooms or a whole office, cooled from one outdoor condenser.from £1800 per system
What clients in the area say
The engineer covered the carpet before he even opened his toolbox, which sold me straight away. The split unit's been running through two heatwaves now without a single rattle.
Sarah M., Clapham, LondonThey diagnosed the leak in under twenty minutes when the last lot took two visits and still hadn't found it. Only knocked off a star because the first appointment ran late, but they messaged to warn me.
Tom R., ManchesterOffice unit had been dripping onto the server rack for weeks. They sorted the drain, cleaned the filters, and it's been dry and quiet ever since. Invoice matched the quote to the penny.
Priya K., BirminghamWhy people call us back next year
We started Coldharbour Air because too many Londoners were left with a noisy unit and a vague invoice. Every job gets a written price, a proper pressure test, and an engineer who answers his own phone.
Fixed Written Quote
You get a price in writing after the survey, before any work starts, so there's no surprise figure on the invoice.
Named Engineer Sent
You're told the engineer's name and contact number ahead of the visit, not a random van turning up.
Public Liability Cover
Every job is covered under our public liability insurance for your peace of mind while work is on site.
F-Gas Registered Team
Only certified engineers handle refrigerant, in line with UK F-Gas Regulations.
Punctual Time Slots
We keep to the arrival window we give you and message ahead if the previous job runs long.
Local London Knowledge
From Victorian conversions to new-build offices, we know which buildings need extra care with pipe runs and wall fixings.
Who does the work
Every unit we fit gets the same checklist, whether it's a one-bed flat in Peckham or a whole floor in the City. If I wouldn't sign it off for my own mum's house, it doesn't leave the checklist blank.
Prices at a glance
These are our starting rates. Whatever quote you're given is fixed in writing.
Need a unit looked at or fitted?
Send us the postcode and a line about what's happening, we usually call back within the same working day. There's no charge for the quote itself.