Greater London · Air conditioning repair
Air con repairs in Harlington
Air conditioning repair for Harlington, from F-Gas certified engineers, with the manufacturer’s warranty terms explained on your quote. Enquiries answered the same working day.
- An error code or flashing light on the unit
- Weak airflow from the indoor unit
- Ice on the pipework or the coil
Harlington: your questions answered
Who do I call if my air conditioning fails in Harlington out of hours?
The emergency line is open around the clock, and Harlington is one of the places it covers. A diagnosis call-out starts from £75 + VAT, and knowing the brand and the symptoms helps us plan it.
Can you do air conditioning repair in Harlington?
Yes. Harlington is one of the places we cover. Just ring 07833 053749 or use the quote form with a few details.
Which brands do you work with?
Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries, Hitachi and others. For new systems, we recommend a brand and model to suit the job and tell you why.
Is the equipment covered by a warranty?
The manufacturer provides it, on its own terms. Some brands make regular servicing a condition, so keep your service records.
Why does my air conditioning run but not cool?
It could be a dirty filter, the wrong settings, a blocked outdoor unit, a sensor or board fault, or a refrigerant leak. Check the filter and the settings first, and if that does not fix it, call 07833 053749, or email if that’s easier.
Will I get records for the system?
Yes. It’s your proof of what was done: the date, the work, and any refrigerant added or recovered.
Who is responsible for leak checks?
Responsibility is shared between the operator, usually 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 yearly for 5 to under 50 tCO2e, and every 6 months for 50 to under 500 tCO2e.
Air conditioning repair for homes and businesses in Harlington
Our emergency line runs 24/7 for urgent breakdowns, such as a server room overheating or water coming through a ceiling. Ring 07833 053749 with the make, what’s happening and any code and we’ll talk you through what happens next. Typical jobs include a unit blowing warm air and a fault code on the display, across wall-mounted split systems, VRF systems and ducted systems.
Many buildings in Harlington have a managing agent or security desk, so let us know who needs to know we’re coming. Roof access can need keys or permits, and we plan for that before we arrive.
Whatever the visit, you get a written record: commissioning details for an installation, a fault and repair note for a repair, or a record of the service. Keep it with the system’s paperwork so it’s to hand next time.
- Location
- Harlington (UB3, TW6, UB7)
- Wider area
- Greater London
- Quote
- A fixed price before we start
- Costs
- £75 + VAT call-out, then a fixed repair price
- Approvals
- F-Gas certified, NICEIC approved
- Telephone
- 07833 053749
- Last updated
- 30 October 2026
Why deal with it now?
If the system may still be under the manufacturer’s warranty, report the fault early. Tell us the make, model and install date and we’ll explain how the manufacturer’s terms are likely to apply first. In a London building, getting the freeholder’s or agent’s agreement can take a while, so it’s worth starting early.
What you pay depends on the system and the number of rooms or units, the access and what the work involves. We give you a fixed price before any work starts, so there are no surprises.
Why people in Harlington choose us
- Warranty terms set out brand by brand
- A fixed price before any work starts
- Covering London and the South East
- An F-Gas certified company, as the law requires
Read our cost guide and our accreditations.
Towns and villages near Harlington
Also in Harlington
Safe owner checks
On air conditioning, the filters in the indoor unit are usually the one part owners can clean, if the manual says so. With the power off, they lift out, can be vacuumed or rinsed and must be fully dry before they go back. For a heat pump, the main owner jobs are a clear outdoor unit and sensible control settings.
Before you call us about a fault, a few checks can save a visit: is the system in the right mode, is the set temperature sensible, are the remote’s batteries working and has the breaker tripped. If the breaker trips a second time, leave it off and ring us on 07833 053749 or drop us a line.
Air conditioning repair around Harlington
The Valuation Office Agency’s council tax figures date about 49% of homes in and around Harlington to the post-war years, 1945 to 1972. A photo of the outdoor unit and its surroundings tells us what access the visit needs. In London, access to outdoor units on roofs and balconies can need planning, so tell us how to reach yours. The Harlington Village Conservation Area is within about a third of a mile of the centre of Harlington. Church of St Peter and St Paul, listed at grade I, is one of roughly 13 protected buildings and structures in the half-mile around Harlington’s centre. For most visits that makes no difference. It only comes up when an outdoor unit has to be replaced on a protected building.
The make, model and error code are the most useful things to tell us. If a system fails at a school such as William Byrd Primary Academy, our 24/7 line takes the call, and planned repairs can wait for the holidays.
Harlington is about 2 miles south-east of West Drayton, in Greater London. We cover Harlington for air conditioning repair and across the rest of Greater London. Our list for Greater London has 764 entries and Harlington is among them. London, roughly 15 miles off, has its own page on this site.
Not far from Harlington, a recent job of ours was on Church Street, Staines-upon-Thames (TW18), about 5 miles south-west: installing two LG wall-mounted units in the main office area and a single unit in the client meeting room.
All of UB3, TW6 and UB7 is within our area, from the main roads to the quietest streets. That includes properties on New Road, Bath Road and Manor Lane and nearby roads. Neighbouring places we cover include Sipson (1 mile north-west), Hatton (1 mile south-east), Cranford (1 mile south-east), Heathrow (1 mile south-west) and Harmondsworth (2 miles west). We also work in nearby towns such as London (15 miles east), City of Westminster (12 miles east), Marylebone (13 miles east) and Kensington (10 miles east).
Around Harlington
Around Harlington, our work takes us to homes and businesses near The Red Lion pub, Harlington Community School and Lake Farm Country Park, among other places. The closest station to Harlington is Heathrow Terminals 2 & 3 Rail station, roughly 1.2 miles south-west. Nearby you will also find Harlington (0.6 miles north-west) and Treaty Centre (3.4 miles east). Open spaces near Harlington include Staines Reservoirs and Crane Meadows.
Looking after your system
Looking after it is simple, and it makes the next visit easier:
- If there’s ice on the pipes, switch off and let it melt
- Ask for the leak to be found, not just a top-up
- Note any error code, or take a photo of the display
A returning symptom is worth reporting quickly. Describe what’s happening and any error code and we will come back to it.
Sensible use helps. Choose the right mode and a moderate set temperature, and keep doors and windows closed while it runs and the system doesn’t have to work as hard.
What we do, step by step
If the system has to be off for part of the visit, we tell you before work begins, so you can plan around it. In a business, work can often be done one area at a time. On site, it takes a single visit for many faults, while some repairs need a second visit once parts arrive. A note on parking and access helps us plan a visit to Harlington.
- First the diagnosis: fault codes read, electrics and airflow checked, drain and refrigerant tested.
- Prescribe: tell you the cause and the fixed cost of the cure.
- Where a repair does not make sense, you will hear it from us, with the alternatives.
- The treatment: the repair itself, with any leak found and fixed before recharging.
- Finally, a check that it’s working and a record of what we did.
Preparing for the visit
- Unlock any gate, garage or side passage we need
- Make sure we can reach the consumer unit or fuse board
- Move furniture away from the wall where we’ll be working
Ask for a quote
If you need air conditioning repair in Harlington, give us a ring on 07833 053749 or send an email. Tell us what kind of property it is and what you’d like done, plus some pictures if they’re to hand. Enquiries get a reply the same working day.
Advice
From one of our customers
“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