Greater London · Air conditioning installation
Air con installers in Dagenham
One call covers supply, installation and commissioning of air conditioning for homes and businesses, from one room to a whole building in Dagenham, from the first look to sign-off. F-Gas certified, NICEIC approved and Checkatrade members.
- Rooms under the roof that stay hot into the night
- A study or office that overheats during the day
- A room that’s unbearable on warm days
The process
If the system has to be off for part of the visit, we tell you before we start so it doesn’t catch you out. In a business, work can often be done one area at a time. The work takes a day or more, depending on the number of rooms, the pipe routes and the access. The more we can see beforehand, the smoother the visit to Dagenham will be.
- We survey the property, or work from your photos for a simple job.
- Each room is sized and the unit positions agreed, then you get a fixed-price quote.
- On the day, dust sheets go down and the indoor and outdoor units are fitted.
- Connections are made, checked for leaks and pulled down to a vacuum.
- We commission, show you the controls and leave the F-Gas and warranty paperwork.
Before we arrive
- Arrange for someone to be there to let us in
- Dig out any previous service or F-Gas records
- Give us access to the outside wall, roof or yard where the outdoor unit sits
Get a fixed-price quote
Some jobs can be priced from photos, while others need a survey. Bigger systems, commercial sites and awkward pipe routes are normally surveyed on site. Either way, the quote is fixed before anything goes ahead.
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Air conditioning for homes and businesses in Dagenham
Air conditioning isn’t only for summer: most modern splits heat too. The Energy Saving Trust makes the same point: an air-to-air heat pump is what many people simply call air conditioning, and a well-chosen system can earn its keep all year round. Most split systems we fit in Dagenham are reversible: in heating mode they work as an air-to-air heat pump, so a system bought for summer earns its keep in winter too.
In Dagenham, as across London, the rooms that get hottest are normally under the roof or behind large sunny windows. Many people start with one wall-mounted unit in the room that suffers most, while a multi-split serves several rooms from one outdoor unit, which helps where outside space is limited.
Nothing is signed off by word of mouth: commissioning details and F-Gas records for a new system, a note of the fault and the fix for a repair, or a service record. File it with the manual so it’s to hand next time.
- Where
- Dagenham (RM10, RM9, RM13, RM7)
- Region
- Greater London
- Certified
- NICEIC and F-Gas
- Costs
- One room: £1,200–£2,200 + VAT
- Quotes
- A fixed price before we start
- Phone
- 07833 053749
- Checked
- 30 October 2026
What the work involves, system by system
Ceiling cassettes
For wide rooms, a cassette spreads the air more evenly than one wall unit, and the slim grille sits neatly in the ceiling.
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.
What affects the quote in Dagenham
Some jobs are bigger than they look, and some smaller. The main factors:
- What state the existing equipment is in
- The electrical supply and whether a new circuit is needed
- The brand, model and parts involved
Height, access and the distance between the indoor and outdoor units all affect the cost. Each of those is built into the quote and give you a fixed price before any work starts.
Helping us quote
When you contact us, it’s useful to have:
- Your consumer unit or fuse board
- The outdoor side of the property, including any roof or flat area
- The rating plate or label on any existing unit
Quotes do not take long. Call or email with a few details and we’ll come back to you the same working day. Where a survey is needed, we arrange a time that suits you.
Dagenham questions
Is air conditioning in Dagenham permitted development?
It depends on the property. The Dagenham Village Conservation Area is close to the centre of Dagenham. 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 Barking and Dagenham council, which is usually the planning authority for Dagenham.
Can you do air conditioning in Dagenham?
Yes, Dagenham is within the area we cover. To start, give us a ring on 07833 053749 or write to us at info@aircondoctor.co.uk with a few pictures.
What does F-Gas certified mean?
Anyone installing, repairing or servicing the refrigerant side must be qualified, and their company certified. It’s worth checking before you book, and we’re happy to show ours.
Do I need a new electrical circuit?
Most of the time, yes: a dedicated circuit is needed. Under Part P, a new circuit has to be notified unless a registered competent person does it, and as NICEIC approved contractors we install and certify it as part of the job.
Which manufacturers do you install and repair?
The main ones, including Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. For a new system, we suggest the make and model that suit the property and explain why.
Do you protect the property while you work?
Protection goes down first: sheets over the floor and nearby furniture. Holes and fixings are agreed with you, and we clean up afterwards before we leave.
Do you look at the job first?
Yes. Photos often do the job for simple work, while bigger systems and repairs that need testing get a visit.
Signs you need air conditioning in Dagenham
Bedrooms that are too warm at night are a frequent reason for a call. Once a bedroom has soaked up heat during the day, opening a window may not bring the temperature down far enough, especially on a still night.
The things we’re asked about most are:
- An ageing air conditioning system near the end of its life
- A business premises that overheats in summer
- Not knowing which system, size or brand to choose
Rainham Hall, about 2 miles south-east, is one of the historic houses nearby, and if your own home is listed, consent comes before any air conditioning is fixed to it.
Questions to ask before booking
- Whether the quote shows VAT clearly
- Whether testing, commissioning and paperwork are included
- What records you get at the end
Towns and villages near Dagenham
What else we do in Dagenham
Air conditioning in Dagenham: the local picture
VOA council tax data show about 66% of homes in the Dagenham area date from 1919 to 1939, and the last census (2021) found about 47% of households in terraced houses. We check the wall construction on homes of that age, as it decides how the pipework goes through. Terraces have little side access, so the outdoor unit typically goes on the rear wall or a flat roof, with the pipe run kept short. In London, outdoor unit positions, building rules and access tend to need more planning than the install itself.
Older streets near St. Peter and St. Paul may fall within a conservation area, so we check the planning position before choosing where the outdoor unit goes.
Dagenham is about 3 miles south of Romford, in Greater London. From the centre of Dagenham to the outskirts, our engineers cover air conditioning, from a single room to a whole building. Across Greater London, we cover 764 places, Dagenham among them. London, roughly 11 miles off, has its own page on this site.
Our nearest recent job to Dagenham was on Greenwich High Road, Greenwich (SE10), about 8 miles south-west: installing a Mitsubishi Electric wall-mounted unit in the retail area and a second unit in the stockroom and office. See the job
With the B178 close by, Dagenham is simple for us to get to. Jobs in RM10, RM9, RM13 and RM7 are looked at, quoted and booked the same way as anywhere else. Other places close to Dagenham include Becontree (1 mile north-west), Dagenham Green (1 mile south-west), Beam Park (1 mile south), South Hornchurch (1 mile south-east) and Hornchurch Marshes (2 miles south). Further out, we also cover London (11 miles west), City of Westminster (14 miles west), Marylebone (13 miles west) and St Pancras (12 miles west).
Local landmarks in Dagenham
We fit and service air conditioning in homes and premises around Dagenham Park Community School, Beam Valley Country Park and Cross Keys pub. Dagenham’s nearest station is Dagenham Dock station, roughly 1.2 miles south-west. A little further out are Rush Green Hospital (1.5 miles north-east) and The Brewery (2.5 miles north). Open spaces near Dagenham include Dagenham Village Churchyard.
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