Slough · Air conditioning servicing
Air conditioning servicing in Langley, Slough
For air conditioning servicing in Langley, choose an F-Gas certified, NICEIC approved company. Fixed-price quotes and a 24/7 emergency line.
- Noisy fans or rattling from the outdoor unit
- Drips or damp patches below an indoor unit
- A musty or damp smell when the unit starts
Langley questions
Do you cover Langley for air conditioning servicing?
Yes. Langley is one of the places we cover. Get in touch with the details and we reply the same working day.
Will you come out to Langley?
Yes. Langley is within the area we cover across London and the South East. A few pictures and the postcode are enough to get things started.
Which accreditations do you hold?
We are an F-Gas certified company, with NICEIC approval for electrical work and MCS certification for heat pumps. We’re members of Checkatrade too.
How regularly should I have my air conditioning serviced?
At least once a year is a sensible routine for most systems. Systems that work hard, such as those used for heating or in busy workplaces, may benefit from more frequent visits and it’s worth checking what your manufacturer recommends.
How long will the engineer be here for the service?
It takes an hour or so for a single wall-mounted unit, longer for a multi-split system. The number of indoor units and how easy they are to reach make the biggest difference so we will confirm the time when we book.
What’s the price of a yearly air conditioning service?
The price for an annual service is £95–£150 + VAT. We confirm the exact figure before we book the visit and bigger systems are priced once we know what’s installed.
What does F-Gas certified mean?
F-Gas certification shows a company is approved to work on equipment containing fluorinated gases, such as the refrigerant in air conditioning and heat pumps. That is not optional: it’s required by law, and we hold it.
Air conditioning servicing for homes and businesses in Langley
Maintenance contracts suit anyone who would rather not have to remember when the next service is due. We agree the visits, what each one covers and the price with your quote, and the servicing happens on schedule. The work covers air-to-air heat pumps, ceiling cassettes and ducted systems, and common reasons people get in touch are systems that need a 6 or 12-monthly leak check and air conditioning that isn’t cooling as well as it did.
In a place like Langley, the outdoor unit often sits near a garden, hedge or trees, which can clog the outdoor coil. Every service includes cleaning it.
Refrigerant work is written up in the F-Gas records: the work carried out, the refrigerant involved and the quantities. File them with the system’s paperwork, ready for the next service or a warranty query.
- Place
- Langley (SL3)
- Region
- Slough
- Typical price
- Annual service £95–£150 + VAT
- Enquiries
- Answered the same working day
- Quote
- A fixed price before we start
- Credentials
- NICEIC and F-Gas
- Phone
- 07833 053749
- Last updated
- 30 October 2026
Keeping the system healthy
Think of this as the after-treatment advice, in brief:
- Close windows when the air conditioning is running
- Leave space around the outdoor unit for air to flow
- Don’t wait for a small drip to become a leak
After the service, you get a record of what was done, listing the work, the checks and any recommendations. File it with the system’s manual and warranty documents so the service history is in one place.
Make sure condensate pipes outside aren’t crushed, blocked or buried. If the outlet is blocked, the water has to go somewhere, and that’s typically back towards the indoor unit.
Different systems, different jobs
Indoor and outdoor coils
Bent or damaged fins restrict the airflow across a coil. We’ll point out damaged fins and whether they matter.
Refrigerant performance and leak checks
The law requires leak checks once a system reaches 5 tCO2e, at least yearly up to 50 tCO2e and every 6 months from 50 to under 500 tCO2e. Hermetically sealed systems under 10 tCO2e are exempt.
Nearby places to Langley
Other services in Langley
What we do, step by step
The visit goes in the diary at a time that works for you, and we keep you posted if anything changes. On arrival, the engineer compares the job with the survey, your pictures or the details you gave us. If something is different, we talk it through with you before carrying on. From there, the work takes anything from an hour for a simple split system to most of a day for a larger installation. Because we plan from pictures or a survey, a job in Langley can typically be finished in one visit.
- We start with the basics, such as the brand, the number of indoor units and any symptoms.
- On arrival, a quick performance check shows how well it’s working before the clean.
- Filters are cleaned, coils treated and the drain tray and pipe cleared.
- Next come the terminals, the controller and the refrigerant side, with a leak check if the system’s size makes one a legal duty.
- You get a service record, with anything that needs attention explained.
How to prepare
- Plan for pets to be kept clear during the visit
- Dig out any previous service or F-Gas records
- Give us access to the outside wall, roof or yard where the outdoor unit sits
Getting a price
Here’s what helps us quote: the address and the type of property, a few photos, the brand and model of anything already fitted and anything you’ve noticed, such as an error code or a noise. Once you have those, phone 07833 053749 or email us.
Advice
Rented and managed buildings
Whether it’s one property or many, you get the same standard: a look at the job first, a fixed-price quote, work booked with the occupier and written records afterwards.
Landlords, letting agents and managing agents book us, not only the people who live or work in the property. Let us know who will give us access and who the records should go to and we’ll copy in whoever needs it.
Keeping systems in Langley running
Roughly a third of a mile or less from central Langley, you reach the St Mary's Church, Langley Conservation Area. There are 2 conservation areas within a mile of the centre of Langley. About 16 listed entries lie within half a mile of central Langley, Church of St Mary (grade I) among them. We keep it in mind in case a new outdoor unit is ever needed, as protected buildings can need consent for that. Valuation Office Agency council tax records date about 54% of homes in and around Langley to the post-war years, 1945 to 1972. Wall bracket, ground pad or flat roof: knowing where the outdoor unit is saves time on the day.
For an office near Langley station, servicing can be booked before or after working hours. Site managers at schools like The Langley Academy Primary can have the site’s units serviced during a holiday.
Langley is about 2 miles east of Slough, in Slough. We cover Langley for air conditioning servicing, along with the rest of Slough. Our list for Slough has 31 entries and Langley is among them. You can also see our page for Guildford, about 18 miles away.
The closest recent job we can point to from Langley was on Church Street, Staines-upon-Thames (TW18), about 6 miles south: installing two LG wall-mounted units in the main office area and a single unit in the client meeting room.
Jobs in SL3 are looked at, quoted and booked the same way as anywhere else. We cover homes and businesses on Fox Road, New Road and Ives Road and nearby roads. If you are just outside Langley, we cover Middlegreen (1 mile north-west), George Green (1 mile north), Shreding Green (1 mile north-east), Upton (2 miles west) and Richings Park (2 miles east). We also work in nearby towns such as Cippenham (4 miles west), Britwell (4 miles north-west), Burnham (5 miles west) and Stoke Poges (3 miles north-west).
Landmarks near Langley
Locally, jobs take us to houses, flats and workplaces close to Upton Court Grammar School, The Red Lion Public House and Langley Academy and the streets around them. The nearest railway station is Langley station, about 0.5 miles east. Nearby you’ll also find Windsor Castle (2.7 miles south-west) and Upton Hospital (1.7 miles west). The countryside around Langley includes Staines Reservoirs and Uxbridge Moor.
A customer’s words
“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