Affordable Warmth Feature


Heating, Ventilation & Air Conditioning 23


Retrofi t quality is the measure of success


Rob Garner from Warma UK explains why the defi ning measure of success in the UK’s retrofi t journey is not funding or volume, but the quality and integrity of delivery.


T


he UK housing sector is entering one of the most important phases in its modern history. T e transition to low carbon, energy-effi cient housing is now a central pillar of national policy, with billions of pounds


now being committed to retrofi t schemes. Yet for housing associations, local authorities and private landlords, the challenge is not only to secure funding but to ensure that every project delivers safe, durable, and verifi able improvements for residents. T e Government’s Warm Homes Plan outlines a £15bn investment between


2025 and 2030, supporting the retrofi t of around fi ve million homes. T is includes a mix of measures such as insulation, low carbon heating, solar technologies and energy storage. T e Energy Company Obligation (ECO4) and the Great British Insulation


Scheme (GBIS) were the primary delivery vehicles for this ambition, with the Local Authority Flexible Eligibility route, known as LA Flex, providing councils with the fl exibility to target vulnerable households who might otherwise fall outside national criteria. T e direction of travel is encouraging, but the sector’s progress will not be


judged by how many properties receive grants, but by how many residents live in warmer, more effi cient, and healthier homes because of it.


COST OF POOR QUALITY In recent years, several large-scale retrofi t audits have revealed widespread issues in workmanship, specifi cation and post-installation oversight. Common failures,


particularly in external wall insulation, have led to damp and condensation problems that undo the very benefi ts retrofi tting is meant to achieve. For social landlords already managing complex building safety obligations,


these fi ndings are a stark reminder that quality assurance must be the foundation of every scheme. Retrofi t delivered without rigour can quickly become a liability. Poor quality


installations create fi nancial burdens for landlords, disrupt residents’ lives, and undermine public trust in the very idea of energy effi ciency and the grant schemes that deliver it. By contrast, high performing retrofi t projects share consistent traits: they are


designed with care, properly ventilated, and verifi ed to perform as intended. T e results go beyond better energy ratings; they deliver lasting warmth, improved air quality and healthier, more resilient homes. Quality, in this sense, is about more than compliance. It means selecting the


right measure for each property, considering how residents live in their homes, and ensuring work is carried out by professionals who understand how every element of the building interacts.


POLICY MOMENTUM TOWARDS CONSISTENCY Government policy is beginning to refl ect this emphasis on quality. T e Response to the Energy Security and Net Zero Committee’s Retrofi tting Homes for Net Zero report sets out a stronger framework for delivery. Among its priorities are simplifying eligibility rules to make schemes more


Housing Management & Maintenance December/January 2026


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