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Full Boiler Replacement & Heating System Upgrade with Ideal Logic2 Combi Installation in HA0

Project Summary

Location: HA0 (North West London)

Client: Private Landlord (Ongoing Client – Multiple Property Installations Completed)
Services Provided: Boiler installation, system upgrade, power flushing, heating controls installation

Key Works: Ideal Logic2 24 combi installation (10-year warranty), BS 7593 powerflush, magnetic filtration, scale protection, radiator upgrades

Project Type: Full system upgrade and boiler replacement
Surrounding Areas: Wembley, Harrow, Greenford

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Project Overview

Plumb London was instructed to replace an existing boiler system that had reached the end of its serviceable life and required upgrading to meet current performance and compliance standards.

The existing system required full isolation, decommissioning, and reconfiguration to accommodate a modern combi boiler. Without proper system cleansing and protection, the new installation would have been exposed to sludge contamination, reduced efficiency, and increased risk of premature failure.

This project forms part of a series of installations carried out for the same client across multiple properties, reflecting a consistent approach to system upgrades and long-term asset management.

Scope of Works

  • Full system isolation, drain down, and removal of existing boiler, flue, and associated components
  • Installation of Ideal Logic2 24 combi boiler (10-year warranty) with new flue system
  • Modification of pipework and condensate to suit upgraded system layout
  • Full system powerflush in accordance with BS 7593 to remove sludge and internal contamination
  • Installation of system protection including magnetic filter and inline scale reducer
  • Upgrade of heating controls with wireless programmable thermostat and TRVs
  • Installation of new radiators to improve system balance and heat output
  • System refill, inhibitor dosing, testing, and full commissioning
  • Gas safety checks, certification, and Building Control / Gas Safe registration
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Key Work Completed

The project began with full system isolation and safe removal of the existing boiler, flue, and associated components. This ensured the system could be upgraded without introducing contamination or compromising the new installation.

A new Ideal Logic2 24 combi boiler was installed, providing an efficient and compact heating solution supported by a 10-year manufacturer warranty. Pipework was modified to suit the new configuration, and condensate routing was adapted to meet current installation standards.

Before commissioning, the system underwent a full powerflush in accordance with BS 7593, using chemical treatment and mechanical agitation. This process removes sludge, corrosion deposits, and debris from the system. Without this, contaminants would circulate into the new boiler, increasing the risk of heat exchanger blockage, reduced efficiency, and premature failure.

To ensure long-term protection, an AX-MAG magnetic filter was installed to capture circulating debris, and an inline scale reducer was fitted to limit limescale formation. These measures directly protect internal components and improve system longevity.

Heating performance was improved through installation of a Honeywell T3R wireless thermostat and TRVs across radiators, allowing controlled heat distribution and improved efficiency throughout the property.

Additional upgrades included new radiators in the bathroom and bedroom, ensuring adequate heat output and balanced system performance.

The system was fully tested, balanced, and commissioned, with gas tightness checks completed. All certification and compliance documentation was finalised and registered.

This installation follows similar upgrade works completed for the same client, allowing consistent system standards, protection measures, and controls to be applied across multiple properties.

Environment / Operational Considerations

Works were carried out within a residential property, requiring controlled shutdown of heating and hot water services.

All stages—from removal and flushing to installation and commissioning—were sequenced to minimise disruption while maintaining compliance and safety standards.

Additional Works and Building Protection

System flushing and protection measures were critical to safeguarding the new installation.

These reduce the risk of:

  • Sludge circulation damaging internal boiler components
  • Reduced efficiency due to restricted flow
  • Premature system wear

Filtration and scale protection provide ongoing defence against contamination and water quality issues.

Programme

Works were completed in November 2023, with installation, system flushing, and commissioning delivered within a structured installation programme.

Project Value

Full boiler replacement and system upgrade

Represents a complete system improvement, combining installation with system cleansing, protection, and control upgrades to ensure long-term performance.

Client testimonial available on request.

Location

This project was delivered in HA0, covering surrounding areas including Wembley, Harrow, and Greenford.

Properties in this area commonly require system upgrades where older boilers and untreated systems lead to reduced efficiency and repeat issues. This project forms part of ongoing landlord portfolio works across multiple properties.

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Summary

This project forms part of a wider programme of upgrades delivered for the same client across multiple properties.

By applying consistent installation standards, system cleansing, filtration, and control strategies, Plumb London ensures reliable performance and reduced long-term risk across the portfolio.

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