Slough · Air conditioning repair
Air conditioning repair in Horton, Slough
F-Gas certified and NICEIC approved, we cover Horton for air conditioning repair. Fixed-price quotes and a 24/7 emergency line.
- New noises from the system
- A flashing light and a system that won’t run
- Poor airflow even with clean filters
Air conditioning repair for homes and businesses in Horton
We repair air conditioning on all the main brands, from Mitsubishi Electric, Daikin and Fujitsu to Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. Systems fitted by other installers are fine too, so tell us the make and model if you know it. If the problem is water leaking from the unit or through the ceiling and ice on the pipework or the coil, we can sort it out.
A visit to Horton is planned so we can usually finish in one go, unless a part has to come from the manufacturer.
Think of the paperwork as the system’s health record: a dated account of the work and the readings we took. It makes the next visit quicker and any warranty question simpler and it’s worth keeping safe.
- Location
- Horton (SL3, TW19)
- Region
- Slough
- Guide price
- Call-out from £75 + VAT
- Quote
- A fixed price before any work starts
- Response
- On the working day you ask
- Certified
- NICEIC and F-Gas
- Call
- 07833 053749
- Last updated
- 30 October 2026
Let and managed properties
Keeping records across a portfolio is half the battle. Each visit is written up, plus the F-Gas records where refrigerant is involved, ready for a tenant, a buyer or an inspection.
From a single flat to a whole estate, the approach is the same: a look at the job first, a fixed-price quote, work booked with the occupier and written records afterwards.
Also near Horton
Also in Horton
What affects the quote in Horton
You will get a fixed price before work begins. It takes into account:
- How easy the units are to reach
- What we find on the survey or diagnosis
- How many units are involved
Several rooms, units or sites on one quote can make for a more efficient booking. Mention every unit or room you need covered, and you’ll get one fixed price.
What we need to know
To help us quote quickly, please include:
- The paperwork from the last service, if you have it
- The outside wall, roof or yard where the outdoor unit sits or would go
- Any error code or flashing light on the display
For a fixed-price quote, ring us on 07833 053749 or drop us a line with the address and a few details about the rooms or units involved. Photos help a lot. You will hear back from us the same working day.
Horton: your questions answered
Is there an emergency air con repair line for Horton?
The emergency line is open around the clock, and Horton is one of the places it covers. Tell us the make, model and any error code when you call; repair call-outs start from £75 + VAT.
Can you do air conditioning repair in Horton?
Yes, Horton is within the area we cover. Tell us a little about the job and we’ll take it from there.
Why does F-Gas certification matter?
The law says any company working on equipment containing F gas has to be certified, and each engineer needs the right qualifications too. It’s how you know the refrigerant is being handled legally and safely.
Will you work on another installer’s system?
Yes. Systems fitted by other companies are fine from all the leading brands. Send us the make and model, and any records you have.
My system uses R22. Can it be repaired?
Servicing with new R22 is not allowed, because it depletes the ozone layer. Some non-refrigerant faults can be repaired if parts are available, but a leak normally makes replacement the sensible route. We explain the options and quote for a new system if that’s the answer.
Can you still repair R410A air conditioning?
Yes. Repairing and recharging existing R410A systems is still legal. R410A is getting scarcer and dearer to buy as the GB phase-down tightens, so for older systems we compare the cost of a repair with a replacement.
Why is my air conditioning blowing warm air?
Common causes are a blocked filter, the wrong mode or set temperature, an outdoor unit that can’t breathe, a failed sensor or board, or low refrigerant from a leak. Start by checking the filter and the mode, and if that does not fix it, ring 07833 053749 or fill in the contact form.
What a repair looks like in Horton
The middle of Horton is part of a conservation area. Church of St Michael, listed at grade I, is one of roughly 12 protected buildings and structures in the half-mile around Horton’s centre. That only matters for replacements, where a new outdoor unit on a protected building can need consent. At about 19 miles from central London, Horton sits inside the area we cover across London and the South East.
The make, model and error code are the most useful things to tell us. If a system fails at a school such as Colnbrook Church of England Primary School, our 24/7 line takes the call, and planned repairs can wait for the holidays.
Horton is about 3 miles north of Egham, in Slough. Anywhere in SL3, we cover air conditioning repair. Horton is one of 31 places in Slough where we work for homes and businesses. Guildford, roughly 16 miles off, has its own page on this site.
The closest recent job we can point to from Horton was on Church Street, Staines-upon-Thames (TW18), about 3 miles south-east: installing two LG wall-mounted units in the main office area and a single unit in the client meeting room.
If your postcode is in SL3 and TW19, we can take the job on. Whether you are on Stanwell Road, Bells Lane and Foundry Lane or a nearby road, we can help. Close to Horton, our area also takes in Brands Hill (1 mile north), Colnbrook (1 mile north-east), Sunnymeads (1 mile west), Poyle (1 mile north-east) and Wraysbury (1 mile south-west). We also work in nearby towns such as Slough (4 miles north-west), Cippenham (5 miles north-west), Chalvey (4 miles north-west) and Britwell (6 miles north-west).
Landmarks near Horton
We fit and service air conditioning in homes and premises around The Five Bells Public House, Langley Grammar School and Arthur Jacob Nature Reserve and the streets around them. The nearest railway station is Sunnymeads station, roughly 1 mile west of the centre. Well-known places in the area include Upton Hospital (3.3 miles north-west) and Windsor Castle (3 miles west). The countryside around Horton includes Staines Reservoirs.
The process
The first job on site is protection: dust sheets over floors and furniture near the work and nothing is moved without asking you. After that, anything electrical is made safe and we start. It takes anything from an hour or so to a full day, depending on the fault and the parts, and we clear up before we go. Work in Horton is booked in advance at a time that suits you.
- It starts with the symptoms: what the unit is doing, the make and any code on the display.
- The engineer reads the fault codes and checks the electrics, airflow, drain and refrigerant circuit.
- Once the cause is found, we explain it and fix the price for the repair.
- With your agreement the part is replaced or the fault put right, and refrigerant work goes in the F-Gas log.
- Before leaving, we run it through its modes and write up what was found and done.
How to prepare
- Give us access to the outside wall, roof or yard where the outdoor unit sits
- Tell us about parking and loading
- Let us know if the units are on a roof, a high wall or in a locked area
Getting a price
Some jobs can be priced from photos, while others need a survey. Bigger systems, commercial sites and awkward pipe routes are normally surveyed on site. Either way, the quote is fixed before anything goes ahead.
Read more
How the job changes from property to property
Refrigerant leaks
A low refrigerant charge always means a leak. The leak is found and fixed, then the circuit is tested, evacuated and recharged and every step is recorded.
Circuit boards and sensors
We test sensors and boards before replacing them, so you do not pay for a part that wasn’t the problem. Parts may need ordering and we will explain any wait.
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