UHeat provides professional External Wall Insulation (EWI) and Internal Wall Insulation (IWI) services across social housing and commercial properties. Both solutions are designed to improve thermal performance, reduce energy consumption and enhance occupant comfort, while supporting long-term building resilience and regulatory compliance.
Improving wall insulation is one of the most effective ways to reduce heat loss in existing buildings. Poorly insulated walls account for a significant proportion of energy waste. By upgrading the building fabric, we help clients lower operational costs, improve EPC performance and create more stable internal environments.
UHeat’s decarbonisation works were crucial to the success of this high demand project.
Thompson Court is an 11 storey high block of private apartments.
As part of our mission to make homes greener, we accepted the Assheton house project.
Internal wall insulation is often selected where external appearance must be preserved or where access to the building exterior is limited. Insulation materials are applied to the inside surface of external walls, improving thermal performance without altering the outside façade.
IWI is particularly suited to retrofit projects within occupied social housing, where planning constraints or building design restrict external works. By reducing heat transfer through walls, internal insulation helps maintain a consistent indoor temperature and lowers heating demand.
In addition to energy savings, IWI can reduce the risk of condensation and mould formation by improving surface temperatures. This contributes to healthier living conditions and greater resident comfort. Acoustic performance can also be enhanced, creating quieter and more private internal spaces.
Each IWI installation is carefully assessed to ensure correct detailing around windows, doors and service penetrations. Proper vapour control and ventilation strategies are incorporated to protect building integrity and ensure long-term effectiveness.
Read more about our IWI solutions here.
External wall insulation involves applying insulation to the outside of a building, followed by a protective render or cladding finish. This approach significantly reduces heat loss while protecting the underlying structure from weather exposure.
EWI is widely used in social housing improvement programmes, particularly on solid wall properties. By insulating the building envelope externally, thermal bridging is reduced and internal disruption is minimised for occupants.
In addition to improving energy efficiency, EWI can transform the external appearance of a property. A new rendered or finished surface provides a refreshed aesthetic while enhancing durability and weather resistance.
All EWI works are completed in accordance with relevant building regulations and safety standards. We ensure that detailing around roofs, windows and ground levels maintains moisture control and structural protection.
Check out our EWI projects here.
Whether delivering IWI, EWI or a combination of both, UHeat adopts a structured and compliant methodology. We begin with detailed assessments to determine the most suitable solution based on building type, occupancy and budget.
Our installations are delivered by experienced teams, with strict quality control at every stage. By improving insulation performance, we help clients reduce exposure to rising energy costs, lower carbon emissions and create warmer, more efficient buildings.
External and internal wall insulation form a key part of our wider retrofit strategy, supporting long-term sustainability goals across social and commercial sectors.
