Hampshire · Air conditioning repair

Air conditioning repair in Four Marks, Hampshire

Looking for air conditioning repair in Four Marks? We look at the job first, give you a fixed-price quote and do the work at a time that suits you, finishing with proper records.

  • A unit blowing warm air
  • A system that keeps cutting out
  • A unit that has lost refrigerant

Air conditioning repair across Four Marks

What you can do yourself, and what needs us

Keep a note of anything odd: an error code, a new noise, a drip, a smell or a change in how well the system heats or cools. It makes our diagnosis quicker, and a photo or a short video of the display is even better.

On air conditioning, the filters in the indoor unit are normally the one part owners can clean where the manufacturer’s manual explains how. 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.

Air conditioning repair for homes and businesses in Four Marks

A symptom is only a clue: warm air, drips and error codes can each have several causes. Warm air can mean anything from a dirty filter to a sensor, board or refrigerant fault, so we diagnose before we repair. Typical jobs include a system that needs topping up again and air conditioning running but not cooling, across ceiling cassettes, multi-split systems and ducted systems.

Around Four Marks, most of our repairs are in homes, with some small businesses. What you tell us about the fault shapes the visit, so describe what it’s doing and send a photo of any error code.

If a fault appears while the equipment is under the manufacturer’s warranty, tell us the make, model and installation date. We will explain how the manufacturer’s terms are likely to apply before anything chargeable is done.

Place
Four Marks (GU34)
Wider area
Hampshire
Costs
£75 + VAT call-out, then a fixed repair price
Credentials
F-Gas certified, NICEIC approved
Price
Fixed, in writing
Phone
07833 053749
Page updated
30 October 2026

Looking after your system

Here’s the after-treatment advice, short and simple:

  • Never add refrigerant yourself or let anyone top up without finding the leak
  • Check the filter, the mode and the set temperature before calling us
  • Leave a tripping breaker off and call us

If parts are needed, we tell you what’s on order and book the return visit with you. Parts lead times depend on the supplier, so we keep you posted.

Keep the outdoor unit clear. Anything blocking the outdoor unit makes the whole system strain and debris drawn into the fan can cause noise and damage.

What we do, step by step

If the system has to be off for part of the visit, we tell you before any work starts, so you can plan around it. For businesses, we can normally work room by room or zone by zone. The work takes anything from an hour or so to a full day, depending on the fault and the parts. Send pictures of the space and the outside wall, and we can plan the work near Four Marks.

  1. Describe the problem and the brand, and mention any code on the display.
  2. A diagnosis visit finds the cause with proper tests.
  3. The fault is explained simply and the repair priced up front.
  4. Once agreed, the repair goes ahead.
  5. The system is run and checked, and you get a written note of the repair.

Preparing for the visit

  • Tell us about any building rules, permits or sign-in
  • Make sure we can reach the outdoor unit, or where it will go
  • Dig out any previous service or F-Gas records

Getting a quote

Quotes don’t take long. Send a few details and photos, and we reply the same working day. If we need to see the property first, we book a survey at a time that works for you.

Get a quick quote

Related advice

FAQs for Four Marks

Is Four Marks in your area for air conditioning repair?

We do: Four Marks falls inside our working area. Tell us a little about the job and we will take it from there.

Who do I call if my air conditioning fails in Four Marks out of hours?

The emergency line is open around the clock, and Four Marks 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.

Do you offer maintenance contracts?

Yes. Send details of the systems and how they’re used, and we’ll suggest a schedule with a fixed price. Leak checks required by the F-gas rules can be built in for larger systems.

How much does an air conditioning repair cost?

Diagnosis call-outs start from £75 + VAT. Once we know the cause, you get a fixed price for the repair before any work goes ahead. The final cost depends on the fault, the parts and the access.

Why is my air conditioning icing up?

The coil gets too cold when air can’t move across it or when the refrigerant charge is low. Check the filter first and if that is not it, we will find the cause.

Will you make a mess?

We start with protection: dust sheets over floors and anything close to the work. Any drilling is agreed with you first, and we clear up the dust and offcuts when we finish.

Why is my air conditioning showing a fault code?

An error code points us in the right direction, but testing confirms the cause. Write down the code and turn the unit off if it has stopped, then ring 07833 053749 or drop us a line.

When something else is needed

We will always give you a straight diagnosis, so here’s what air conditioning repair won’t do:

  • An R22 system that has lost its refrigerant
  • A system that was undersized for the room in the first place (that needs a bigger system, not a repair)
  • A unit whose parts are no longer made (replacement may be the only option)

If in doubt, ring us on 07833 053749 or drop us a line and we’ll say what we think.

Where we work

  • Wall-mounted split systems
  • Heat pumps
  • VRF systems
  • Ducted systems
  • Ceiling cassettes
  • Multi-split systems

Air conditioning repairs in Four Marks: local notes

At about 49 miles from central London, Four Marks sits inside the area we cover across London and the South East. About 32% of homes in and around Four Marks have been built since 2000, according to Valuation Office Agency council tax records, and about 87% of households live in detached or semi-detached houses, according to the 2021 Census. Tell us where your outdoor unit is and how to reach it, so we can plan the visit.

For a school like Four Marks Church of England Primary School, urgent repairs can be booked right away and bigger work in the holidays. Before you call, note what the unit is doing and any code on the controller.

Four Marks is about 4 miles south-west of Alton, in Hampshire. Whatever kind of property you have in Four Marks, our engineers can help with air conditioning repair. We reply to enquiries the same working day, and there’s a 24/7 emergency line. Count every place we list in Hampshire and you reach 683, with Four Marks on the list. We also work in Guildford, about 23 miles from Four Marks.

The closest recent job we can point to from Four Marks was on Castle Street, Farnham (GU9), about 13 miles north-east: installing a Fujitsu multi-split system serving three offices and a client meeting room.

Read's Field, River Close and Chalk Close and the roads off them are all inside our area. Every address in GU34 is within our area, from the main roads to the quietest streets. Close to Four Marks, our area also takes in Medstead (1 mile north), Soldridge (1 mile west), South Town (2 miles north-west), New Copse (2 miles north) and Hattingley (2 miles north-west). Within a short drive, we also cover Basingstoke (11 miles north), Winchester (12 miles west), Fleet (15 miles north-east) and Horndean (14 miles south).

What’s near Four Marks

The closest station to Four Marks is Alton station, roughly 4.6 miles north-east. A little further out are Barton Castle (3.5 miles north-west) and Alton Community Hospital (3.3 miles north-east). For a walk, there’s Red Hill.

Map of Four Marks © OpenStreetMap contributors

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

F-Gas certified companyRefrigerant work done and recorded properly
NICEIC approvedElectrical work certified
MCS certifiedHeat pump installations
Checkatrade memberVetted trade directory
24/7 emergency lineBased in East Grinstead