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Multi-Room Air Conditioning Installation

From £4,680 fully fitted. One outdoor compressor, up to five indoor units, independently zoned and controlled. Cool and heat the rooms you actually live in, without conditioning empty space.

A multi-room split (or multi-split) is the right answer when you want consistent climate control across more than one room. Master bedroom plus living room. Three bedrooms upstairs. An open-plan kitchen-diner-living area plus the master bedroom. Each indoor unit runs independently, so you control room by room.

Which service are you interested in? *

When a multi-split is the better choice

You're cooling, or heating, more than one room often. The trade-off versus separate single-room installs is straightforward:

One outdoor unit
instead of three or four, which means a cleaner exterior, less wall space taken up, and lower install cost per room
One pipework infrastructure,
run once during install
Independently zoned
each room has its own thermostat, schedule, and mode
Refrigerant cost spread across the system
more efficient than multiple independent compressors

Multi-splits scale neatly. Two rooms, three rooms, four rooms, five rooms from a single outdoor compressor. We've installed plenty of three-bedroom-plus-living-room setups across Suffolk and Norfolk for customers who wanted whole-floor or whole-house comfort.

What you get

We install Bosch Climate 5000i outdoor compressors paired with multiple 3200i indoor units for multi-room jobs. Premium tier across the board, and the same 15-year operational lifespan as the single-room range.

Included in every install:

  • One outdoor compressor unit (sized to the number of indoor units)
  • Two to five indoor wall-mounted units, positioned during survey
  • Refrigerant pipework runs to every room, concealed where the property allows
  • Full electrical connection from a dedicated spur
  • Independent zone controls for each room
  • Commissioning, system test, and handover
  • App setup with multi-zone control, voice-assistant pairing
  • All certification paperwork, building control notification, and warranty registration

Warranty: 5-year Bosch product warranty plus 2-year Greenscape labour warranty on every install.

Rated five out of five stars
“I had one unit installed in my conservatory, and now it’s comfortable all year round!”
Patrick, IP4 customer

How the install works

Most multi-room installs are two to three days on site, depending on pipework runs and the number of indoor units.

Day 1

Outdoor unit positioned and mounted. First two indoor units fitted and connected. Pipework planning for remaining rooms.

Day 2

Remaining indoor units fitted, pipework runs completed, refrigerant charged, system pressure-tested.

Day 3 (if needed)

Commissioning, multi-zone setup, app configuration, walk-through with you.

We dust-sheet the work areas, run pipework concealed in walls or behind furniture where possible, and tidy as we go.

Running costs across multiple rooms

The beauty of independent zoning is that you only pay for the rooms you're using. Cooling the master bedroom and the lounge while the spare rooms sit unconditioned costs roughly 70p to £1.20 per evening on standard grid electricity.

With solar, daytime cooling across multiple rooms still runs essentially free during sunny hours, because a 4 kW array generates more electricity than a typical multi-split needs at peak cooling demand.

With solar plus a battery on an off-peak smart tariff, evening and overnight cooling drops to around 15 to 25p for the full setup. Winter heating across the same rooms, run as heat pumps from battery-shifted electricity, comes in at roughly 1.75p per kWh of heat. That's well below mains gas.

A family relaxing in a living room cooled by a Bosch wall unit

Pricing

From £4,680 for a 2-room multi-split, fully fitted and certified.

Indicative multi-room air conditioning prices
System Indicative price
2-room multi-splitFrom £4,680
3-room multi-splitFrom £6,800
4-5 room multi-splitQuoted on survey

Final pricing depends on the model selected, pipework run lengths, and the indoor unit positions. Finance available on all installations. SAVE £300 when installed alongside a Greenscape Solar and Battery system.

Our reviews speak for themselves

Trustpilot

Friendly and efficient service from Cloe!

Pa 31 Oct 2026
Trustpilot

The two technicians, Luke & Cam arrived as scheduled, were courteous and respectful. They carried out the work as requested and invited me to inspect what they had done. Luke also clarified and guided me through a particular aspect on the Solis App.

V Evans 30 Oct 2026
Trustpilot

As usual, Greenscape customer service resolved my query quickly and professionally. I had a query about winter settings for my batteries which Chloe resolved for me and then sent a follow up email to confirm all is in place. Thank you!

Hayley Goldson 30 Oct 2026
Trustpilot

Harry fixed a persistent problem we've had for years. Over the last 4 years, a number of engineers had a go at fixing this but without success. Very happy with Harry and the knowledge he had of the Mitsubishi system

Eric Henderson 30 Oct 2026
Trustpilot

Can’t thank Chloe Hickman enough for sorting out my winter charging so quickly and efficiently Stephen Carpenter

Stephen Carpenter 30 Oct 2026
Trustpilot

Excellent service given by our Greenscape engineer Harry, who sorted our heating and gave a detailed explanation of the problem

customer 30 Oct 2026
Trustpilot

Darren Ben and Cameron were absolutely lovely very helpful and professional. Neat and tidy and really nice guys, great job done very happy

Laura Lawrence 29 Oct 2026
Trustpilot

Aaron at Greenscape Energy provided a prompt, friendly, informative and helpful service when quoting the proposed PV and battery system for our property.

M Hayes 29 Oct 2026
Trustpilot

Both Brandon and young apprentice Ellis arrived on time to install my long awaited Pylontech battery. What can I say, they were very smart, professional and most polite. Greenscape have a good team here, please retain them and do pass on my best regards to them both. Cheers Paul

MRS MARILYN BAILEY 29 Oct 2026
Trustpilot

Chloe was very helpful with my winter settings, my app wasn’t the same as the written instructions but she just did it for me and then checked to see it was all working correctly.

Ruth 28 Oct 2026
Google Google

I have used Greenscape Energy to install Solar Panels and Tesla Powerwall batteries and I can confidently state that they are an excellent company to deal with. I recently had a minor problem with the batteries not being charged during the cheap rate. Greenscape could not have been more helpful and put me in contact with Tesla to resolve the problem. Fantastic service from a professional company.

Tim Reid 27 Oct 2026
Google Google

Michaela, dealt with my finance query in a professional, efficient manner, and placated my fears that the progress on my solar system would be paused until the return of the surveyor from holiday. Good customer care. Thank you

Andrew Kay 16 Sept 2026
Google Google

Very professional and efficient from the sales engagement through to commissioning. I wouldn’t hesitate in recommending them.

Granary Barn 17 Aug 2026
Google Google

I have been very impressed with the service I received from Greenscape. The initial survey was very professionally done by Andrew and I was pleased that he convinced me not to have more panels than necessary. The team that installed the battery and inverter were excellent and very pleasant to deal with. The system is up and running and there have been no complications. I thoroughly recommend Greenscape.

Richard Stainer 11 Aug 2026
Google Google

I arranged to have solar panels and a battery installed by Greenscape via OVO Energy. From start to finish, the service has been excellent. From the survey, to the panel installation and battery installation, every team member has been professional and very friendly. The after sales have kept in contact to make sure everything has gone smoothly. Couldn't fault Greenscape.

Gareth 7 Jul 2026
View case studies

Common questions

01 How many rooms can one outdoor unit support?

Up to five indoor units from a single Bosch Climate 5000i outdoor compressor. We size the outdoor unit to the total cooling load during the survey.

02 Can I add a room later?

Often yes, depending on the original outdoor unit capacity. If we surveyed for two rooms and you want to add a third in 18 months, the existing outdoor unit usually has the headroom. We'll flag this during the original survey if you mention future plans.

03 Does each room need its own thermostat?

Each indoor unit has its own integrated controls and app interface, so yes, each room is independently controlled.

04 How long is the install?

Two to three days on site for a multi-room job. We schedule it as consecutive days so the disruption is contained.

05 Are the indoor units all the same size?

Not necessarily. We size each indoor unit to the room it's serving. A small bedroom needs less capacity than a large open-plan lounge. That's part of what the survey decides.

Ready to talk?

A free survey for a multi-room job takes around 90 minutes. We assess each room you want cooled, walk through positioning, run a pipework plan, and send you a bespoke proposal straight away.

Book a FREE Survey

Or call us directly on 01473 727 727

Showroom:
The Energy Shop, 544–550 Woodbridge Road, Ipswich, IP4 4PN.
Open 8am to 5:30pm Monday to Thursday, 8am to 4:30pm Friday. Closed at weekends.

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