Greater London · Air conditioning servicing
Harlesden air conditioning servicing
For air conditioning servicing in Harlesden, one call is all it takes: diagnosis, fixed price, work and sign-off. F-Gas certified, NICEIC approved and Checkatrade members.
- Drips or damp patches below an indoor unit
- Smells coming from the indoor unit
- Ice forming on the pipework or outdoor unit
Common problems we fix in Harlesden
The indoor coil is cold and wet when the system is cooling. That moisture traps dust, and a dirty coil and drain tray are a common source of musty smells.
These are the situations we see most often:
- Humming, rattling or squealing from the system
- A system that struggles to cool on warm days
- A service that’s overdue
For a school like John Keble CofE Primary School, maintenance visits can be booked out of term.
Comparing quotes
- The make and model of any parts or equipment being quoted
- Whether the price is fixed or an estimate
- Whether you get F-Gas records where refrigerant is involved
Air conditioning servicing in Harlesden, done properly
For an annual service, the price is £95–£150 + VAT, confirmed before the visit is booked. Multi-split, ducted and commercial systems are priced once we know what’s there. Either way, you know the cost before the engineer arrives. The work covers ducted systems, air-to-air heat pumps and multi-split systems, and common reasons people get in touch are ice forming on the pipework or outdoor unit and F-gas leak checks falling due.
In Harlesden, the outdoor unit can be on a balcony, a roof or a rear wall, so let us know how to get to it. If the building has a managing agent, we can book in with them.
Whatever the visit, you get a written record: commissioning details and F-Gas records for a new system, a note of the fault and the fix for a repair, or a service record. File it with the manual so it’s to hand next time.
- Where
- Harlesden (NW10, W3, NW26)
- Wider area
- Greater London
- Price guide
- From £95 + VAT
- Certified
- NICEIC and F-Gas
- Quote
- Fixed after a survey or pictures
- Telephone
- 07833 053749
- Checked
- 30 October 2026
Common questions in Harlesden
What’s the best way to get a price for air conditioning servicing in Harlesden?
The easiest way is to call 07833 053749 or email us with a few details and photos. Where pictures are not enough, a survey comes first and the fixed-price quote follows.
How often do you service systems in Harlesden?
A yearly visit is right for most households. Larger systems holding 5 tonnes CO2 equivalent or more also need a leak check at least every 12 months under the F-gas rules.
Who has to arrange F-Gas leak checks?
The F-gas rules share it between the equipment’s operator and the engineers who work on it. 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.
Can I fit air conditioning or a heat pump myself?
The refrigerant side has to be done by a qualified engineer working for an F-Gas certified company. That’s a legal requirement, and it also matters for the manufacturer’s warranty. We’re happy to quote for the full job, supply to commissioning.
Do you do service contracts for air con?
Yes, with visits planned to suit how hard the system works. We agree the cost up front and you get a record after every visit.
How quickly will you reply?
You’ll hear from us the same working day. If it’s an emergency, ring the 24/7 line instead.
Do you work on systems someone else installed?
Yes. We work on systems fitted by other installers as well as our own, on all the main brands. Send us the make and model, and any records you have.
How the visit works
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 typically work room by room or zone by zone. On site, it takes an hour or so for a single wall-mounted unit, longer for a multi-split system. For a job in Harlesden, tell us about parking, permits and access to the building when you get in touch.
- We start with the details of the system and anything you’ve noticed.
- Inside, the filters, coil and drain tray of each indoor unit are cleaned.
- The outdoor unit is cleaned and checked, and debris cleared from around it.
- We test the electrics, the controls and how the refrigerant circuit is performing.
- We explain what we found and price any repair before it’s done.
Preparing for the visit
- Keep pets and children away from the work area
- Move furniture away from the wall where we’ll be working
- Make sure we can reach the outdoor unit, or where it will go
Get a fixed-price quote
Published ranges are a starting point; the quote is built on your property, because every property is different. After a look at the job, by photos or a survey, the price is fixed. To start, call 07833 053749.
Read more
What owners can safely do
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 refrigerant lines can cause cold burns. If you suspect a leak, switch the system off and call us.
For landlords and property managers
Portfolio owners often want one contractor and one number. Our area covers Greater London and the South East, so a run of properties can go into one programme and kept on a regular cycle.
Landlords, letting agents and managing agents book us, not only the people who live or work in the property. Let us know who will give us access and who the records should go to and we’ll copy in whoever needs it.
Air conditioning servicing around Harlesden
The centre of Harlesden lies within a conservation area. In the mile around Harlesden’s centre, 4 conservation areas have been designated. About 6 listed entries lie within half a mile of central Harlesden, Church of All Souls (grade II*) 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. About 52% of homes in and around Harlesden were built before 1919, according to Valuation Office Agency council tax records, and about 74% 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. City dust and debris build up on London outdoor units, which is why servicing matters.
Businesses close to Willesden Junction station can book an early or late slot so the service doesn’t get in the way of trade.
Harlesden is about 4 miles west of City of Westminster, in Greater London. From the centre of Harlesden to the outskirts, we cover air conditioning servicing, from small jobs to large ones. Harlesden is one of 764 towns, villages and districts in Greater London we cover for homes and businesses. You can also see our page for London, roughly 7 miles from Harlesden.
The closest recent job we can point to from Harlesden was on Richmond Hill, Richmond (TW10), about 6 miles south: installing a Mitsubishi Electric Zubadan multi-split system serving four bedrooms, the study and the living room: six indoor units in total.
Fry Road, Wood Road and Park Road and the roads off them are all inside our area. Postcode districts we cover here: NW10, W3 and NW26. If you’re just outside Harlesden, we cover College Park (1 mile south-east), Old Oak Common (1 mile south), Church End (1 mile north), Stonebridge (1 mile north-west) and Willesden Green (1 mile north-east). Within a short drive, we also cover London (7 miles east), City of Westminster (4 miles east), Marylebone (5 miles east) and Kensington (3 miles south-east).
What’s near Harlesden
In Harlesden, that means homes and buildings near St Claudine's Catholic School for Girls, Royal Oak Inn and Roundwood Park and the streets around them. Harlesden has its own railway station: Willesden Junction station. Nearby you will also find Central Middlesex Hospital (1 mile west) and Brent Museum and Archives (1.1 miles north-east). Open spaces near Harlesden include Castlebar Hill and The Long Water.
Towns and villages near Harlesden
More services for Harlesden
What a customer said
“Excellent service from start to finish. Two wall-mounted units installed in our home. Clean, tidy work: they protected all the floors and left no mess. The systems work brilliantly. Would highly recommend.”
Sarah M., East Grinstead