Oxfordshire · Air conditioning repair
Air con repairs in Highmoor
For fault finding and repair for split, multi-split, ducted, cassette and VRF air conditioning, whatever the brand in Highmoor, choose an F-Gas certified, NICEIC approved company. Fixed-price quotes and a 24/7 emergency line.
- A system that runs but doesn’t cool the room
- New noises from the system
- A system that will not switch on
How the job changes from property to property
Ducted and cassette systems
If water is coming through the ceiling, switch the unit off and call us. A failed pump, a blocked drain or an overflowing tray is typically behind it and the diagnosis covers each of them.
Fans and compressors
At the centre of the system is the compressor. Before blaming the compressor, we check the electrics and the refrigerant circuit. If it has failed, we compare the cost of repair with replacement.
Air conditioning repair for homes and businesses in Highmoor
When air conditioning stops cooling, leaks water or shows an error code, the symptom rarely tells you the cause. Warm air can mean anything from a dirty filter to a sensor, board or refrigerant fault, so we diagnose before we repair. The work covers VRF systems, multi-split systems and heat pumps, and common reasons people get in touch are rattling, buzzing or grinding noises and weak airflow from the indoor unit.
A visit to Highmoor is planned so we can normally finish in one go, though some parts have to be ordered from the manufacturer.
AirCon Doctor is an F-Gas certified company and NICEIC approved for electrical work, with MCS certification for heat pumps and Checkatrade membership. Our engineers hold the F-gas qualifications needed to work on refrigerant.
- Place
- Highmoor (RG9)
- Region
- Oxfordshire
- Quote
- A fixed price before we start
- Accreditations
- F-Gas certified company, NICEIC approved
- Typical price
- Diagnosis from £75 + VAT
- Phone
- 07833 053749
- Last updated
- 30 October 2026
Looking after your system
So the system stays in good health:
- Write down the fault code if there is one
- Turn the system off if it’s dripping water
- Rule out the simple causes first: filter, mode and temperature
Once the fault is fixed, we test the system in operation. We confirm it’s working properly and look for anything else that needs attention, and we tell you about anything we noticed.
Have the system serviced once a year. The engineer cleans what you cannot reach and picks up problems before they cause a breakdown and that’s normally simpler than a breakdown repair.
What you can do yourself, and what needs us
Write down what you notice: error codes, noises, drips, smells or a drop in performance. It makes our diagnosis quicker, and a photo of the display helps even more.
Good habits make our visits easier, not unnecessary. Clean filters and a clear outdoor unit help the system run as it should, but the refrigerant circuit, the electrics and the parts you can’t see still need an engineer at the interval the manufacturer recommends.
What a repair looks like in Highmoor
About 47% of homes in the Highmoor area date from 1945 to 1972, according to the Valuation Office Agency’s council tax figures, and the 2021 Census found about 84% of households in detached or semi-detached houses. Tell us where your outdoor unit is and how to reach it, so we can plan the visit. Church of St Paul, listed at grade II, is one of roughly 8 protected buildings and structures in the half-mile around Highmoor’s centre. Day-to-day work on an existing system is not affected; a replacement outdoor unit on a protected building might be.
When cooling fails at a school like Stoke Row Church of England School, we can time non-urgent repair work around lessons. Before you call, note what the unit is doing and any code on the controller.
Highmoor is about 4 miles north-west of Henley-on-Thames, in Oxfordshire. Wherever you are in the RG9 postcode area, we cover air conditioning repair. Our area takes in 443 places across Oxfordshire, from busy centres to quieter spots. Guildford, roughly 28 miles off, has its own page on this site.
Here we cover the RG9 postcode area. Streets in the area include The Glebe and Holly Close, and we cover them all. We also cover the places around Highmoor: Highmoor Cross (1 mile south-east), Shepherd's Green (1 mile south-east), Catslip (1 mile north-east), Nettlebed (2 miles north) and Kingwood Common (2 miles south). Within a short drive, we also cover Didcot (11 miles west), Abingdon-on-Thames (15 miles north-west), Thame (13 miles north) and Henley-on-Thames (4 miles south-east).
What’s near Highmoor
We fit and service air conditioning in homes and premises around The Dog and Duck pub and the streets around them. Highmoor’s nearest station is Henley-On-Thames station, roughly 4.5 miles east. For a walk, there’s Warburg Nature Reserve.
How it works
You do not need to do much on the day. Someone needs to let us in and show us the units, or where they’re going, and we take it from there. Before we leave, the area is tidied and we explain what we’ve done. Photos of the existing unit help with repairs and servicing in Highmoor.
- First the diagnosis: fault codes read, electrics and airflow checked, drain and refrigerant tested.
- Then the prescription: what’s wrong and what it will cost to put right.
- Where a repair does not make sense, you’ll hear it from us, with the alternatives.
- Treat: carry out the repair, sealing any leak before refrigerant goes back in.
- Sign off: prove it works and record the visit.
Before we arrive
- Find the manual or the paperwork for the system, if you have it
- Clear access to the fuse board
- Let us know if the units are on a roof, a high wall or in a locked area
Ask for a quote
Need a price for air conditioning repair? Please phone 07833 053749 or send an email with a few details about the property. We will explain what we’d recommend and why, then send a fixed-price quote before anything is booked.
Advice
Towns and villages near Highmoor
More services for Highmoor
Highmoor questions
Do you cover Highmoor for air conditioning repair?
Yes, Highmoor is within the area we cover. Tell us a little about the job and we will take it from there.
Is there an emergency air con repair line for Highmoor?
Yes. Our 24/7 emergency line covers Highmoor. Have the make, model and error code ready, and we’ll talk you through what happens next.
How do you keep the place clean during the work?
We start with protection: dust sheets over floors and anything close to the work. Holes and fixings are agreed with you, and we clean up afterwards when we finish.
Can I do any of the installation myself?
No, not the refrigerant side. Under the F-gas rules, it must be done by qualified engineers from a certified company, and a new electrical circuit is notifiable building work unless a registered competent person does it.
What causes water to leak from an air conditioning unit?
Most of the time, it’s the condensate system: a blocked pipe, a kinked hose or a failed pump. Turn the system off to stop the water and give us a call.
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.
Is there a survey before the work?
Yes, every time. Diagnosis comes before treatment: the survey tells us what the job needs and how to do it and the fixed price is built on it.
What a customer said
“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