Surrey · Air conditioning servicing
Air conditioning servicing in Chertsey, Surrey
Air conditioning servicing across Chertsey and nearby, from a site survey or diagnosis to sign-off with the price fixed before work begins.
- Water dripping from the indoor unit
- Noisy fans or rattling from the outdoor unit
- Systems that need a 6 or 12-monthly leak check
Air conditioning servicing in Chertsey
A service is not the same as a regas. The refrigerant circuit is sealed, so a system that’s short of gas has a leak somewhere. Where the checks suggest gas has been lost, the right step is to find the leak, and we’ll set out how. The work covers ceiling cassettes, ducted systems and air-to-air heat pumps, and people most often call us about water dripping from the indoor unit and no service record for the last year or more.
A yearly service suits most systems around Chertsey, and some manufacturers’ warranty terms ask for regular servicing.
For a fault on a system that may still be under warranty, send us the make, model and installation date. We’ll explain how the manufacturer’s terms are likely to apply before any chargeable work goes ahead.
- Place
- Chertsey (KT16, KT15)
- Region
- Surrey
- Quotes
- A fixed price before we start
- Costs
- Annual service £95–£150 + VAT
- Accreditations
- F-Gas certified company, NICEIC approved
- Enquiries
- Same working day
- Telephone
- 07833 053749
- Last updated
- 30 October 2026
Signs you need air conditioning servicing in Chertsey
Systems that run most of the year collect dirt faster than ones used on a few hot days. A system used for heating as well as cooling, or one in a busy workplace, sees far more running hours and so builds up dirt more quickly.
If any of these sounds familiar, it’s worth a diagnosis:
- Frost or ice on the refrigerant pipes
- A system that struggles to cool on warm days
- New noises from the indoor or outdoor unit
For a school like St Anne's Catholic Primary School, maintenance visits can be booked out of term.
What your quote should include
- Whether they looked at the job before pricing it
- Which VAT rate the quote uses, and why
- Proof of F-Gas company certification
Keeping systems in Chertsey running
Roughly a third of a mile or less from central Chertsey, you reach the Chertsey Conservation Area. On the National Heritage List, around 78 entries fall within 0.5 miles of the middle of Chertsey; Church of St Peter (grade II*) is one. That only matters for replacements, where a new outdoor unit on a protected building can need consent. VOA council tax data show about 30% of homes across Chertsey and its surrounding area were built in 2000 or later. If the outdoor unit is high up or behind a locked gate, mention it when you book.
Offices and shops near Chertsey station can have their systems serviced without closing.
Chertsey is about 6 miles north-east of Woking, in Surrey. Homes and businesses alike in Chertsey, we can help with air conditioning servicing. We reply to enquiries the same working day, and there’s a 24/7 emergency line. Count every place we list in Surrey and you reach 395, with Chertsey on the list. Guildford, roughly 10 miles off, has its own page on this site.
The closest recent job we can point to from Chertsey was on Queens Road, Weybridge (KT13), about 3 miles east: installing a full-house Mitsubishi Electric multi-split system covering five bedrooms, the study, the sitting room and the kitchen-living area: eight indoor units in total served by two outdoor units.
If your postcode is in KT16 and KT15, the property is within reach. Main roads around Chertsey include the A317 and A320, so getting to you is simple. If you’re just outside Chertsey, we cover Lyne (1 mile west), Row Town (2 miles south), Ottershaw (2 miles south-west), Trumps Green (3 miles west) and Stonehill (3 miles south-west). We also work in nearby towns such as Guildford (10 miles south), Woking (6 miles south-west), Camberley (10 miles west) and Epsom (11 miles east).
Landmarks near Chertsey
Locally, jobs take us to houses, flats and workplaces close to Chertsey High School, Sir William Perkins's School and Woburn Park and the streets around them. Chertsey has its own railway station: Chertsey station. Other landmarks nearby include Runnymede Hospital (1 mile south-west) and Spelthorne Museum (3.2 miles north). Not far away are St Ann's Hill and Gracious Pond.
Your questions about air conditioning servicing in Chertsey
Do you cover Chertsey for air conditioning servicing?
We do: Chertsey falls inside our working area. Just give us a ring on 07833 053749 or drop us a line with a few details.
How often should air conditioning in Chertsey be serviced?
Usually once a year for homes, more often for busy business systems. Some manufacturers’ warranty terms ask for regular servicing, so it’s worth keeping the records.
Why use an F-Gas certified company?
For refrigerant work, both the engineer and the company need the right F-gas credentials. Ask to see proof before booking anyone and we will gladly show you ours.
How soon will you get back to me?
On the same working day you contact us. After that, we agree a survey, diagnosis or installation date that suits you, and you get a fixed price before any work goes ahead.
How long will the engineer be here for the service?
As a guide, it takes anything from an hour for a simple split system to most of a day for a larger installation. Units that are hard to reach can take longer and we’ll let you know before the visit.
Will I get records for the system?
Yes. Every visit is written up, and any work on the refrigerant circuit goes in the F-Gas records. Keep them with the manual and the warranty documents.
Whose job is it to check the system for leaks?
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.
What we do, step by step
The first job on site is protection: sheets over the floor and any furniture nearby and nothing is moved without asking you. Then the electrics are made safe and the work begins. The work on site takes an hour or two for most homes, and longer where there are several indoor units or a ducted system, and we tidy up before we leave. Send pictures of the space and the outside wall, and we can plan the work near Chertsey.
- 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.
- Outside, the coil is cleaned, the fan checked and the area cleared.
- 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.
Before we arrive
- Make sure someone can let us in at the agreed time
- Mention any parking restrictions near the property
- Unlock any gate, garage or side passage we need
Getting a quote
Quoting starts with a diagnosis, from a site survey or, where the job is straightforward, from pictures and measurements. After that, we send a fixed price so you know the cost before we begin.
Read more
Also in Chertsey
What happens if it’s left?
Check your manufacturer’s warranty conditions before letting servicing lapse. If servicing is one of the terms, a missing service record could matter if you ever need to make a claim. We can go through the terms with you. Waiting rarely makes an air conditioning problem smaller.
Height, access and the distance between the indoor and outdoor units all affect the cost. Each of those is built into the quote, and the price is fixed before any work starts.
Why people in Chertsey choose us
- We reply to enquiries the same working day
- One number for homes and businesses across London and the South East
- Checkatrade member
- F-Gas certified company
Take a look at how installs are priced or how to check a contractor.
System by system
Filters
The filter is the first line of defence for the indoor unit. We clean them and check for damage and we will say if one needs replacing.
Fans and electrics
We test the controls, the modes and the timers to make sure the system responds properly.
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