Greater London · Air conditioning installation

Air conditioning installation in West Dulwich, Greater London

For air conditioning installation in West Dulwich, choose an F-Gas certified, NICEIC approved company. A fixed price before any work starts, and a 24/7 emergency line.

  • Bedrooms and offices that overheat in summer
  • A business premises that overheats in summer
  • Old electric heaters you’d like to replace with something more efficient

Air conditioning across West Dulwich

Air conditioning in West Dulwich, done properly

Thinking about air conditioning but not sure where to start? Send a few pictures of the rooms and the outside walls when you ring us on 07833 053749, or email if that’s easier, and we will reply the same working day to arrange a survey or a quote. Air con, air conditioning, a split system: whatever you call it, it’s the job we do every week across Greater London.

Most single-room installs in West Dulwich are done in a day, while multi-split systems for several rooms can take longer.

Across London, and in West Dulwich too, a lot of air conditioning goes into flats and terraces rather than detached houses. That shapes the job: where the outdoor unit can go, how the pipework reaches it and who needs to agree first. In a flat, the lease and the freeholder typically come into it, so we write up the proposed positions for them to see.

AirCon Doctor is an F-Gas certified company and NICEIC approved for electrical work, with MCS certification for heat pumps and Checkatrade membership. Refrigerant work is done by engineers who hold the F-gas qualifications the law requires.

Where
West Dulwich (SE21, SE27, SE19)
Wider area
Greater London
Prices
One room: £1,200–£2,200 + VAT
Replies
We reply the same working day
Credentials
NICEIC and F-Gas
Price
Fixed, in writing
Call
07833 053749
Checked
30 October 2026

What we do, step by step

If the system has to be off for part of the visit, we tell you before work begins so it does not catch you out. In a business, work can often be done one area at a time. On site, it takes a day or more, depending on the number of rooms, the pipe routes and the access. Before a visit in West Dulwich, we ask where the van can stop and how we reach the outdoor unit.

  1. We survey the rooms and the outside of the property, or work from pictures and details for simple jobs.
  2. You receive one fixed figure covering the kit, the fitting and the positions we agreed.
  3. On the day, we fit the indoor and outdoor units and run the pipework, cable and condensate drain.
  4. Once the electrics are connected, the pipework is tested for leaks and put under vacuum before any refrigerant flows.
  5. Finally, it’s commissioned, tested in each mode and handed over with the F-Gas records.

Preparing for the visit

  • Keep pets and children away from the work area
  • Clear the space around the indoor unit, or where it will go
  • Give us access to the outside wall, roof or yard where the outdoor unit sits

Get a fixed-price quote

Getting a quote is straightforward. Call or email with a few details and we will come back to you the same working day. If we need to see the property first, we book a survey at a time that works for you.

Ask for a quote

Related advice

What an install looks like in West Dulwich

About 62% of households live in flats, according to Census 2021 figures. In flats, the lease and the freeholder typically decide where an outdoor unit can go, and the permitted development rules for flats are tighter. For a London home, we plan the outdoor unit position, the pipe route and any approvals before the day.

Older streets near Church of St Stephen may fall within a conservation area, so we check the planning position before choosing where the outdoor unit goes. If you commute from Sydenham Hill station and work from home on other days, one wall-mounted unit in the home office is often all that’s needed.

West Dulwich is about 1 mile north-east of West Norwood, in Greater London. Properties in West Dulwich get the same service as everywhere we cover: diagnosis first, a fixed price and proper paperwork when we’ve finished. Across Greater London, we cover 764 places, West Dulwich among them.

Our nearest recent job to West Dulwich was on Church Road, Crystal Palace (SE19), about 1 mile south-east: installing three LG cassette units in the main bar and dining area and a wall-mounted unit in the kitchen. See the job

West Dulwich is on the A2199, which makes it straightforward for our engineers to reach for surveys and visits. Every address in SE21, SE27 and SE19 is within our area. Other places close to West Dulwich include Sydenham Hill (1 mile east), West Norwood (1 mile south-west), Gipsy Hill (1 mile south), Dulwich (1 mile north) and Upper Norwood (1 mile south). We also work in nearby towns such as London (5 miles north), City of Westminster (6 miles north-west), Marylebone (6 miles north-west) and Kensington (7 miles north-west).

Landmarks near West Dulwich

Around West Dulwich, our work takes us to homes and businesses near The Wood House, Dulwich Prep & Senior and Kingsdale Foundation School, among other places. West Dulwich has its own railway station: Sydenham Hill station. Nearby you’ll also find British Vintage Wireless And Television Museum (within half a mile west) and St Christopher's Hospice (1.3 miles south-east). Open spaces near West Dulwich include Battersea Park Lake and Dulwich Upper Wood.

Map of West Dulwich © OpenStreetMap contributors

Before you call an engineer

Refrigerant is off limits for anyone without the right qualifications. Under the F-gas rules, engineers need their own qualifications and the company must be certified, and escaping refrigerant can cause cold burns. A suspected leak is our job, not yours.

Write down what you notice: 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 of the display helps even more.

FAQs for West Dulwich

Can I fit air conditioning in West Dulwich without planning permission?

It depends on the property. The Dulwich Village Conservation Area is close to the centre of West Dulwich. Since 2025, an air-to-air heat pump on a house can count as permitted development if it meets the conditions and isn’t used only for cooling. Listed buildings still need consent, and in a conservation area a road-facing wall or roof isn’t allowed under those rules. If there’s any doubt, we ask the planning department at Lambeth council, typically the authority for West Dulwich.

Can you fit air conditioning in a London flat in West Dulwich?

Normally, yes, though leaseholders normally need the freeholder’s agreement. We look at where the outdoor unit could go, such as a balcony, flat roof or rear wall, and write it up for the freeholder or agent.

Where will you put the outdoor unit?

We agree it with you on the survey. It needs space around it to breathe and room for an engineer to service it, and walls or roofs facing a road can raise planning questions. We explain the options and any permissions to check.

Can you look at a system you didn’t fit?

Yes. We start with a proper look and tell you honestly what we find, including anything about the original installation that needs putting right. Any work is priced before it goes ahead.

Is air conditioning possible in a flat?

That depends on the lease, the building and where the outdoor unit could go. An outdoor unit can sometimes go on a balcony, roof or rear wall, with consent, and we check the options on the survey. This is general information, not legal advice.

How does the warranty work?

It’s the manufacturer’s, and the terms are theirs. Some brands make regular servicing a condition so it’s worth keeping the service records.

Can we book visits on a schedule?

Yes. Tell us what you have and how it’s used and we’ll propose a schedule and quote for it. That can include the leak checks the F-gas rules require for larger systems.

System by system

Wall-mounted split systems

Wall-mounted units suit bedrooms, living rooms, home offices and small commercial rooms. The unit goes where it spreads the air well and the filters are easy to reach, and away from where the air would blow straight onto people.

Ducted systems

Ducted systems need space for the unit and the ductwork plus an access hatch for maintenance. We check that on the survey before recommending one.

Looking after your system

Every system needs looking after, and most of it is easy. Our tips:

  • Book an annual service
  • Close windows and doors while the system is cooling
  • Clean the filters every few weeks when the system is in heavy use

We show you how to take the filters out and clean them. In busy periods, clean them every few weeks, following the manual, and keep the outdoor unit clear of leaves and clutter.

Have the system serviced once a year. A service cleans what you can’t reach and picks up faults before they stop the system and keeps the warranty paperwork right where servicing is a condition.

A customer’s words

“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

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