Client Requirements

The client had a clear brief from the outset:

• Air conditioning to all three bedrooms — one first-floor bedroom and two loft bedrooms
• A complete design-and-install service, as they had no prior experience with air conditioning systems
• High-specification equipment with a premium finish to complement the recently renovated interior
• Minimal visual disruption to the property, particularly given its location within a conservation area
• Works completed promptly, within a couple of weeks of confirming the appointment

The client was candid about one regret: not having planned for air conditioning during the renovation. That context informed the entire approach — this was a retrofit installation requiring careful thought around routing, aesthetics, and structural impact.

Survey & Technical Consultation

Our engineer carried out a full site survey prior to quotation. Several important factors were identified during this visit:

• The property sits within a conservation area, which placed restrictions on where the external condenser could be positioned. Following assessment, a low-level location on the driveway side of the property — between the gate and the external door — was confirmed as both technically suitable and sympathetically placed.
• The existing external power supply, located at the front right of the property, provided a viable feed point. The cable route was mapped from this point, through the garden, up the side wall, across the loft void, and down to the condenser position.
• Scaffolding was identified as a necessity to ensure safe access to the right-hand elevation for external pipework installation. This was arranged through a trusted third-party scaffolding contractor.
• Two of the three indoor units were destined for loft bedrooms, requiring pipework to be routed vertically up through the loft space — a more complex distribution than a standard single-floor installation.

The client was made fully aware that, given the extent of pipework routing required, this would be a more involved installation than a typical single-room job. They understood and were comfortable proceeding.

Pre-Project Process

As is common with larger residential projects, the client took some time to consider the proposal and obtain alternative quotations before confirming with Plumb London. This is a process we actively encourage — confident decisions lead to better working relationships and smoother projects.

No significant delays arose following confirmation. The scaffolding was arranged and erected promptly, and works commenced in line with the client’s preferred timescale.

Scope of Works

Phase 1 – Site Survey, Access & Preparation

• Confirm final indoor unit positions and external condenser location
• Assess and agree condenser siting (low-level, driveway side) in line with conservation area requirements
• Arrange and erect scaffolding to right-hand elevation via trusted third-party contractor
• Protect all working areas prior to commencement
• Verify structural suitability of internal and external mounting locations

Phase 2 – Electrical Routing & First Fix

• Identify existing external power source at front right of property
• Run dedicated supply from external power point, routing through garden and up to condenser location
• Prepare all cable routes for indoor unit distribution

Phase 3 – Refrigeration Pipework & System Distribution

• Install three pipework runs from condenser up the side of the property
• One run serving the first-floor bedroom; two runs feeding into the loft void for the two loft bedrooms
• All pipework insulated, pressure-rated, and routed as discreetly as possible
• Coordination of routing with scaffold access and loft void constraints

Phase 4 — Indoor Unit Installation

• Supply and install Daikin 3.5kW R32 Emura (white) — first-floor bedroom
• Supply and install Daikin 2.5kW R32 Emura (white) — loft bedroom 1
• Supply and install Daikin 2.5kW R32 Emura (white) — loft bedroom 2
• Connect refrigerant pipework, electrical supplies, and condensate drainage to all units
• Secure all units and ensure a clean, professional finish throughout

Phase 5 – Outdoor Condenser Installation

• Supply and install Daikin 8.0kW three-port multi-split outdoor condenser
• Position and secure unit at agreed low-level driveway location
• Connect all refrigerant pipework and electrical supplies
• Pressure test pipework prior to commissioning

Phase 6 – System Testing & Pre-Commission Checks

• Full pressure test of pipework system
• Electrical continuity and supply integrity checks
• Verification of condensate drainage routes
• Inspection of all pipework runs for integrity and insulation compliance

Phase 7 – Commissioning & Handover

• Commission the full system in accordance with Daikin manufacturer guidelines
• Test all units for correct and safe operation
• Demonstrate system controls and provide guidance on day-to-day operation and maintenance
• Remove all waste materials and leave the site clean and tidy

Programme & Delivery

The installation commenced promptly following the client’s confirmation and was completed within the agreed timeframe. The multi-phase nature of the works — spanning scaffolding, electrical first fix, pipework installation, indoor unit fitting, and commissioning — was coordinated efficiently across the Plumb London team.

Scaffolding was erected without delay by our third-party contractor and removed cleanly on completion. Final commissioning was carried out by our lead engineer, Andrew, who signed off the system following a full operational test. The project was delivered on time and to the client’s satisfaction.

Challenges & Solutions

1. Conservation Area Constraints

The property’s location within a designated conservation area meant that standard condenser positioning — typically rear or side elevation at height — was not automatically viable. Our engineer assessed the site carefully and identified a low-level position on the driveway side of the property that satisfied both practical installation requirements and the visual sensitivity appropriate to the area. This considered placement meant the condenser is discreet, well-sited, and in keeping with the property’s surroundings.

2. Complex Multi-Floor Pipework Routing

With indoor units spread across a first-floor bedroom and two loft-level bedrooms, the pipework distribution required careful planning. Routes were mapped across the loft void and down the side elevation, with all pipework fully insulated, ducted, and routed as inconspicuously as possible. Scaffold access was coordinated to ensure the external runs were installed safely and cleanly.

3. Electrical Remediation Discovered on Site

On commencing works, our team identified that the existing electrical supply in the garage was not terminated correctly — the SWA cable had not been connected at the fuseboard. This was an existing defect unrelated to our installation. We dispatched our qualified electrician promptly to investigate and rectify the issue: the SWA cable was properly terminated into a gland and connected to the fuseboard, with the supply re-routed into a 32-amp isolator fitted with a waterproof gland. The existing 32-amp MCB was utilised, tested, and confirmed serviceable. The isolator was locked off and left safe pending final commissioning. This unplanned work was handled efficiently without significant impact to the overall programme.

4. Retrofit into a Recently Renovated Property

The client had recently completed a full renovation of the property and was understandably protective of the finished interior. All working areas were protected prior to the commencement of works, pipework was routed with care to minimise surface disruption, and the site was left clean and tidy on completion. The client’s concern about the visual impact of a retrofit installation was addressed at every stage.

Final Outcome

The completed installation delivers effective, year-round climate control to all three bedrooms of the property. The three Daikin Emura units — chosen by the client for their premium aesthetics and performance credentials — provide both cooling and heating capability, adding meaningful comfort and usability to spaces that had previously relied solely on central heating.

The external condenser sits neatly at low level on the driveway side of the property, unobtrusive and well-positioned. All pipework is insulated, ducted, and routed discreetly. The electrical supply is correctly terminated and safe. The system was commissioned in full accordance with Daikin’s manufacturer guidelines and handed over with a full operational demonstration.

The client expressed their satisfaction clearly — and, given that the works were the direct result of a renovation regret, it is fair to say the outcome more than made up for the oversight.

Project Value

Project investment details are available upon request. This installation represents a considered, long-term investment in the comfort and liveability of the property. Premium Daikin Emura equipment, professional multi-phase installation, and the inclusion of scaffolding, electrical remediation, and full commissioning deliver a system designed to perform reliably for many years.

As a general benchmark, multi-split air conditioning installations of this scope — covering three rooms, conservation area siting, complex pipework routing, and electrical works — typically represent significant but worthwhile capital expenditure for homeowners seeking a lasting solution.

Why Choose Plumb London

• Over 35 years of trading history across plumbing, heating, and air conditioning in London
• Fully qualified, experienced engineers — Daikin installations commissioned to manufacturer specification
• End-to-end project management: survey, design, installation, commissioning, and handover
• Honest, transparent communication — including proactive identification and resolution of unforeseen issues
• Trusted third-party contractor network for specialist works including scaffolding and electrical
• Conservation area experience — sympathetic siting solutions where standard approaches are not viable
• Clean, professional finish as standard — we treat your home with the same care we

Frequently Asked Questions

Can air conditioning be installed in a conservation area?

Yes, in many cases it can — but the placement of the outdoor condenser requires careful consideration. Planning consent rules vary by local authority and the specific conservation area designation. At Plumb London, we assess condenser siting at survey stage and identify positions that are both technically suitable and visually sympathetic. Where permitted development rights allow, low-level or well-screened positions are often achievable without the need for a formal application. We always recommend checking with your local planning authority if you are unsure.

What is a multi-split air conditioning system?

A multi-split system connects multiple indoor units to a single outdoor condenser. This is ideal for properties where several rooms require air conditioning, as it avoids the need for multiple condensers and reduces the external visual impact of the installation. Each indoor unit can typically be controlled independently, giving occupants flexibility over temperature and operation in individual rooms.

How disruptive is a retrofit air conditioning installation?

The level of disruption depends on the layout of the property and the pipework routes required. For a multi-room installation such as this one, works will typically span several days and involve routing pipework through wall cavities, loft voids, and along external elevations. At Plumb London, we protect all working areas before commencement, route pipework as discreetly as possible, and ensure the site is left clean and tidy at the end of each working day. We aim to make the process as smooth as possible, particularly in recently renovated properties.

What ongoing maintenance does an air conditioning system require?

Daikin systems are robust and reliable, but like all mechanical equipment they benefit from periodic servicing. We recommend an annual service — typically including filter cleaning, refrigerant pressure checks, electrical inspections, and a functional test of all units. Regular maintenance protects your warranty, maintains system efficiency, and extends the operational life of the equipment. Plumb London offers ongoing service and maintenance agreements for all systems we install.