Greater London · Commercial air conditioning
Commercial air con in Longlands
For commercial air conditioning in Longlands, choose an F-Gas certified, NICEIC approved company. Fixed-price quotes and a 24/7 emergency line.
- F-gas leak checks and records that are overdue
- R410A systems getting dearer to top up
- IT rooms that need resilient cooling
Looking after your system
Here’s the after-treatment advice, in brief:
- Track when the next TM44 inspection is due
- Agree sensible control settings for each area
- File every leak check and service record in one place
The warranty on the equipment is the manufacturer’s, on its own terms. We go through the manufacturer’s conditions with you and you will know what they ask for.
A maintenance contract keeps servicing and F-gas checks on schedule. We agree the visits and the price with your quote.
About our commercial air conditioning in Longlands
Air conditioning systems with an effective rated output over 12 kW must have a TM44 inspection at least every 5 years. The inspection is carried out by an accredited energy assessor. We don’t carry out the inspection itself, but we prepare the system and do the work it recommends. Typical jobs include IT rooms that need resilient cooling and systems that need out-of-hours or phased installation, across ducted systems, VRF systems and wall-mounted split systems.
London buildings in Longlands can have little space for outdoor plant, so condensers often go on roofs, in light wells or in plant rooms. VRF systems keep outdoor plant down by serving many rooms from few outdoor units, which helps in dense areas.
We are an F-Gas certified company, NICEIC approved for electrical work, MCS certified for heat pumps and a Checkatrade member. Our engineers hold the F-gas qualifications needed to work on refrigerant.
- Where
- Longlands (DA15, DA14, SE9)
- Region
- Greater London
- Quote
- Fixed-price quote after a site survey
- Approvals
- NICEIC approved, F-Gas certified
- Price guide
- Quoted after a survey
- Replies
- Answered the same working day
- Telephone
- 07833 053749
- Last updated
- 30 October 2026
How it works
On the day, we arrive at the time agreed with you and check the plan with you first. Dust sheets go down over floors and anything close to the work, and anything electrical is made safe before work starts. The work itself takes anything from a day or two for a small office to several weeks of phased work on a large building. Managed buildings in London often need contractors booked in, and we can deal with the agent for a job in Longlands.
- First comes a survey, looking at the building and how it’s occupied.
- We recommend a system and send a fixed-price quote.
- We agree the timing, with evening, weekend or phased work as needed.
- We install the units, pipework, drainage, electrics and controls.
- We commission the system and hand over the F-gas records and controls.
How to prepare
- Name a contact who can meet us at the agreed time
- Let us know where the consumer unit is
- Clear the space around the indoor unit, or where it will go
Getting a price
Photos are enough for some jobs; others need a visit first. Multi-room systems, commercial buildings and anything with a long or hidden pipe route are normally surveyed first. Either way, the quote is fixed before anything goes ahead.
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Cooling for Longlands businesses
Food Standards Agency data counts about 116 cafés, restaurants and staff canteens, about 29 schools and colleges and about 52 care homes, nurseries and hospitals within about 1.5 miles of central Longlands. Many of those sites need air conditioning that’s sized for long hours and maintained on a schedule. In London, commercial installs often need landlord consent, agreed plant positions and out-of-hours working.
Before any plant goes outside a building like Christ Church, its trustees may need planning or heritage advice, and we work with whoever gives it.
Longlands is about 1 mile west of Sidcup, in Greater London. For commercial air conditioning in and around Longlands, it’s easy to get a fixed-price quote: please ring us on 07833 053749. Our area covers London and the South East, including Longlands. Across Greater London, we cover 764 places, Longlands among them.
The closest recent job we can point to from Longlands was on Station Road, Orpington (BR6), about 3 miles south: installing three Daikin cassette units in the main office area and a wall-mounted unit in the client meeting room.
Our engineers cover all of DA15, DA14 and SE9 and the roads nearby. From Main Road, Alder Road and Sidcup Road to the smaller roads in between, the whole area is covered. Close to Longlands, our area also takes in Foxbury (1 mile south), New Eltham (1 mile north-west), Chislehurst (1 mile south-west), Coldharbour (1 mile west) and Blackfen (1 mile north). We also work in nearby towns such as London (9 miles north-west), City of Westminster (12 miles north-west), Marylebone (12 miles north-west) and Kensington (13 miles west).
Around Longlands
In Longlands, that means homes and buildings near Waring Park, Chislehurst School for Girls and Ye Olde Black Horse Inn. The nearest railway station is New Eltham station, about 0.8 miles north-west of the centre. Nearby you’ll also find Queen Mary's Hospital (1 mile south-east) and Greenwich Castle (5 miles north-west). Open spaces near Longlands include Summer Hill and The Tarn.
Also near Longlands
Also in Longlands
Longlands: your questions answered
Is Longlands in your area for commercial air conditioning?
Yes. We work across London and the South East from our base in East Grinstead, and Longlands is part of that. Get in touch with the details and we reply the same working day.
Will air conditioning in Longlands need planning permission?
That depends on the building and where the outdoor unit goes. There’s a conservation area, the Chislehurst Conservation Area, close to central Longlands. Put simply: reversible systems on houses can be permitted development, cooling-only ones can’t, listed buildings need consent, and conservation areas limit outdoor units facing a road. When your property needs a decision, we contact Bexley council, which is typically the planning authority for Longlands.
What does the operator have to do under the F-gas rules?
The operator and the service technicians share responsibility. The operator must make sure leak checks are done where required and records are kept, and we provide both.
Are you TM44 assessors?
No, the inspection needs an accredited energy assessor. We can prepare for the inspection and put right what it finds.
How long does a commercial installation take?
The work takes a matter of days for a modest fit-out, with larger buildings phased floor by floor or zone by zone. The survey lets us set a firm programme, and you can ring 07833 053749 or fill in the contact form to book it.
Can I fit air conditioning or a heat pump myself?
The refrigerant side has to be done by a qualified engineer working for an F-Gas certified company. That is a legal requirement, and manufacturers expect it for their warranty too. We’re happy to quote for the full job, supply to commissioning.
Can you work around our opening hours?
Yes, the programme is built around the site. Shops, offices, restaurants and schools all have different needs, and we plan for them.
Why deal with it now?
A single system failure in a server room can quickly cause problems. Designing in a backup unit or reviewing the existing set-up is worth doing before anything goes wrong. If a lease or managing agent is involved in Longlands, start the conversation early.
Every job is different, so each one gets its own fixed-price quote. The equipment, how we reach it, the route between units and the work needed all make a difference.
Why choose AirCon Doctor in Longlands
- Listed on Checkatrade
- A reply the same working day
- F-Gas company certification
- We diagnose before we treat
Take a look at our cost guide or our accreditations.
What we’re called out for in Longlands
For hospitality, comfort is part of the experience. Dining rooms, bedrooms and function rooms all have different patterns of use, which affects the type of system and controls we’d suggest.
Look out for these signs:
- Server rooms running too warm
- Commercial systems near the end of their life
- New tenancies needing cooling and heating
If your office near New Eltham station has a comms or server room, it needs cooling all year, not just in summer.
What to look for in a quote
- Whose warranty applies, and on what terms
- Whether testing, commissioning and paperwork are included
- Which VAT rate the quote uses, and why
From one of our customers
“Office air con broke down in the July heatwave. Called at 8am, engineer was here by noon and fixed within 2 hours. Brilliant emergency response. They now hold the service contract for the whole building.”
James T., Crawley, office manager