Yearly service All major brands serviced
Air Conditioning Service for UK Homes, From £99
Aircova carries out a full air conditioning service for homes across London and the South East, from £99 per unit with VAT. Our F-Gas certified engineers clean, test and record every system, including units we did not fit. A yearly visit keeps your system efficient and your warranty valid.
- F-Gas certified engineers
- Prices include VAT
- Written service record
Prices last checked: October 2026
The checklist
What does an air conditioning service include?
An air conditioning service is a yearly visit where an engineer cleans the filters, coil and drain, then tests the electrics, refrigerant pressures and output. Aircova services split, multi-split and ducted systems from £99 per unit with VAT, and gives you a written record for your warranty.
We work through the same checklist on every visit, inside and out. Each step either restores lost efficiency or catches a small fault before it turns into a breakdown.
- Remove, wash and refit the indoor unit filters
- Clean the indoor coil with an antibacterial cleaner
- Clean the fan barrel and air louvres
- Flush the condensate drain and check the drain pump if fitted
- Clear leaves and dirt from the outdoor unit and condenser coil
- Check refrigerant pressures and inspect pipe joints for leaks
- Test electrical connections, isolator and cable condition
- Measure air temperatures in cooling and heating mode
- Check the remote, Wi-Fi control and any error codes
- Check brackets, anti-vibration mounts and pipe insulation
- Write up the results and stamp your service record
The temperature readings tell us how well the system is moving heat. We compare the air going into the indoor unit with the air coming out. A small difference points to a dirty coil, a low charge or a failing part.
Your record lists what we cleaned, the readings we took and anything that needs attention. Keep it with your installation papers, as the manufacturer may ask for it if you ever make a warranty claim.
Fixed prices
Air con service prices and yearly plan
Every price below is per visit, includes VAT and covers the full checklist above. We confirm the price when you book, so there is nothing added on the day.
One wall-mounted unit
For a single split system with one indoor unit and one outdoor unit.
from£99
Per visit, VAT included
- Filters, coil and drain cleaned
- Pressures and electrics tested
- Outdoor unit cleared
- Written service record
Multi-split, two indoor units
For two rooms running from one shared outdoor unit.
from£149
Per visit, VAT included
- Both indoor units fully cleaned
- One outdoor unit checked
- Each extra indoor unit £45
- Written service record
Ducted system
For a hidden unit in the loft or ceiling void with grilles in each room.
pricedat booking
Fixed before we visit
- Filters and return air cleaned
- Coil and drain checked
- Price depends on access
- Written service record
Our yearly service plan
Our plan is a simple yearly reminder. We log the date of your last visit and contact you when the next annual service is due, so the gap never runs past 12 months.
There is no monthly fee. You pay the service price on the day of each visit, and your records stay on file with us.
What the annual service price covers
- Included
- Full checklist, cleaning materials and a written record.
- Quoted first
- Parts, a deep clean of a very dirty coil, or leak repair.
- Access
- Units reachable from a ladder. Towers or roof access priced at booking.
A one-off service usually costs £70 to £120 per unit across the UK. Our air conditioning cost guide covers the full picture, from fitting to running and upkeep.
Timing
How often should air conditioning be serviced?
Book air conditioning servicing once a year for a home system. Spring is the best time, so the coil is clean before the first hot week. Systems that run hard all year, sit near a busy road or serve a dusty room may need a check every six months.
Many London homes now use their split units as heat pumps through the winter too. Heavy use in both seasons is a good reason to stick to the yearly visit and not let it slip.
Between services, watch for the warning signs below. Any of them is a reason to book early rather than wait for the date.
Weak airflow
Usually blocked filters or a dirty coil
If the fan is running but little air comes out, dust is choking the indoor unit. A clean often brings the output straight back.
Washing the filters is the first step to try at home.
Water dripping indoors
Often a blocked condensate drain
Condensation should run away through the drain. When the drain is blocked, water backs up and drips from the indoor unit onto the wall or floor.
Switch the unit off and book a visit.
Musty smell or ice on pipes
Mould on the coil, or a low charge
A damp smell points to mould in the coil and drain tray. Ice on the copper pipes points to low airflow or a refrigerant leak.
Leaks and error codes need fault finding and repair.
Other signs worth acting on
- The room takes much longer to cool or heat than it used to
- New rattles, clicks or humming from the indoor or outdoor unit
- A flashing light or error code on the indoor unit
- Higher electricity bills with no change in how you use it
Dirty coils make the compressor work harder for the same output. That shows up first in running costs, which our running costs guide explains in pounds per hour.
Rules and cover
Servicing to keep your warranty, and F gas checks
Most manufacturers ask for a yearly service by a qualified engineer as a condition of their warranty. Cover runs up to 5 years, and longer on some ranges, but a missed service can give the maker a reason to refuse a claim. Our warranty and aftercare page explains what each brand asks for.
Leak checks are a separate legal matter. Under the GOV.UK leak check rules, they are only required on systems holding F gas equal to 5 tonnes of CO2 equivalent or more. Systems from 5 to under 50 tonnes need a check at least every 12 months.
The figure is the refrigerant charge in kg times its global warming potential, divided by 1,000. The GOV.UK F gas tables list R32 at 675 and R410A at 2,088. So the line sits at about 7.4kg of R32, or about 2.4kg of the older R410A.
A single room home split holds far less than 7.4kg of R32, so a legal leak check is not needed. Larger multi-split, ducted and commercial systems can cross the line, especially older R410A units. We read the charge from the outdoor unit label, and we still inspect every joint for leaks on a normal service.
Between visits
Air conditioning maintenance you can do yourself
The most useful air conditioning maintenance between visits is washing the indoor filters. In summer, do it every two to four weeks. It takes about ten minutes and needs no tools.
- Switch off. Turn the unit off with the remote, then switch off the isolator or fused spur.
- Lift the front panel. Raise the hinged cover on the indoor unit until it clicks and holds open.
- Slide out the filters. Pull the mesh filters down and out, taking care not to bend the fins behind.
- Rinse in lukewarm water. Use a soft brush and mild washing up liquid if they are greasy.
- Dry fully in the shade. Never refit wet filters, and keep them out of direct sun or heat.
- Refit and test. Slide the filters back, close the panel and run the unit for a few minutes.
Outside, keep it clear. Keep the space around the outdoor unit open so air can flow. Brush off leaves and keep plants trimmed back. Do not hose the condenser fins hard, as they bend easily.
Anything beyond the filters and a wipe of the casing is a job for an engineer. Pipe joints and pressures are part of the refrigerant circuit, and working on that circuit needs an F gas qualification by law.
Every system
Servicing any brand, home or commercial
We service units we did not fit as well as our own. That covers all major brands, from Daikin air conditioning and Mitsubishi Electric to Fujitsu, Toshiba and Panasonic, plus Samsung, LG and Hitachi.
Wall-mounted split in a terraced house
Most of our visits are to a single wall-mounted air conditioning unit in a bedroom or home office. The outdoor unit often sits on a bracket over the side return, so we check the bracket fixings as well as the coil.
Multi-split across a family home
On a multi-split system, every indoor unit gets the full clean. The shared outdoor unit is checked once, which is why each extra indoor unit costs only £45 on top.
Ducted unit in a loft or ceiling
A ducted system hides the indoor unit, so access sets the time on site. We clean the return air filters and check the drain, which is easy to forget when you cannot see it.
Offices, shops and restaurants
Commercial systems run longer hours and are often large enough to need legal F gas leak checks and records. Our commercial air conditioning team sets up visits around your opening hours.
Kitchens and busy shop floors clog filters faster, so many businesses book two visits a year rather than one.
Repair or replace an old unit?
If a service finds a failed part, we quote the fix before any work starts. Units more than 10 to 15 years old, or running on R22, can cost more to keep than to swap, and we will say so plainly.
Our air conditioning replacement service removes the old unit and recovers its refrigerant. New systems come with our air conditioning installation standard and a fresh warranty.
Want a price for a new system instead? Get an instant quote online, or send us a photo of your unit label on WhatsApp to book a service.
FAQs
Air conditioning servicing FAQs
How much is an air con service?
An air con service at Aircova costs from £99 for one wall-mounted unit, with VAT included. A multi-split with two indoor units is from £149, and each extra indoor unit adds £45. Ducted systems are priced when you book, as access to the indoor unit varies. Across the UK, a one-off service usually costs £70 to £120 per unit, with London prices toward the top.
Is it a legal requirement to service home air conditioning?
No, there is no law that says a home system must be serviced every year. The legal duty is a leak check, and it only applies to systems holding F gas equal to 5 tonnes of CO2 equivalent or more. Most single room splits hold far less. Yearly servicing is still a common condition of manufacturer warranties, so skipping it can cost you cover.
Does an air conditioning service include a regas?
No, a standard service does not include a regas, because a healthy system should never need one. Refrigerant runs in a sealed loop and does not get used up. If the pressure is low, there is a leak, and topping up without fixing it just wastes gas. We report the reading and quote for leak finding and repair before any refrigerant is added.
Can you service a system you did not install?
Yes, we service split, multi-split and ducted systems from all major brands, including units fitted by other companies. Send us the brand and model from the label on the indoor unit, or a photo, so we bring the right parts and filters. If the system is still under warranty, we record the service so it counts toward your cover.
What is the best time of year to service air conditioning?
Spring is the best time, before the first warm spell. Engineers are busier in June and July, and a fault found in April can be fixed before you need cooling. If you mainly use your system as a heat pump in winter, an autumn visit works just as well. What matters most is a gap of no more than 12 months.
Why does my air conditioner smell musty?
A musty smell usually means dust and moisture have built up on the indoor coil, fan or drain tray. Mould grows where condensation sits, and the fan blows the smell into the room. Washing the filters can help, but the coil and fan need a proper clean. Our service includes an antibacterial coil clean and a drain flush.
Can I service my own air conditioning unit?
You can do the basic air conditioning maintenance yourself, such as washing the filters and keeping the outdoor unit clear. You cannot legally work on the refrigerant circuit without an F gas qualification. A DIY clean also does not count as a service for warranty purposes, because manufacturers ask for a record from a qualified engineer.
How long does an air conditioning unit last if it is serviced?
A well serviced split system often lasts 10 to 15 years. Dirty coils and blocked filters make the compressor work harder, which shortens its life. Units older than that, or older systems running on R22, may cost more to keep going than to replace. We tell you honestly at the service if a unit is near the end of its working life.
Get your fixed price
Tell us the brand and how many indoor units you have, and we will call you with a fixed service price and a date. No pressure and no obligation.
- Reply within one working day
- Free home survey
- Price confirmed in writing
Prefer to talk? Call 07403 664179
Monday to Friday 8am to 6pm, Saturday 9am to 5pm
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