Retrofit Design

What Does a Retrofit Designer Do?

A retrofit designer develops detailed, energy-efficient plans tailored to the specific needs of your property. Working closely with our coordinators and assessors, they ensure each measure integrates seamlessly with the building’s architecture and performance goals. Every design takes a holistic approach, following the whole-house philosophy at the core of PAS 2035, so that all improvements work together to deliver maximum impact.

As a company, our designers are chartered in line with PAS2035 standards, and all fabric measures, including high-risk works such as EWI, IWI, RIR, UFI, and PRI, are overseen exclusively by our MCIOB chartered designers. This guarantees the highest level of professionalism, compliance, and peace of mind for every installation.

Tailored Retrofit Designs

Our team begins by reviewing the retrofit assessment and occupancy report provided by our assessors. From this, we create a tailored design plan that considers:

  • The most appropriate energy-efficiency measures for your property

  • The integration of heating, insulation, ventilation, and other key elements

  • Compliance with PAS 2035 standards to ensure long-term energy savings

We also take the time to walk homeowners through design choices, ensuring they understand the benefits, feel confident in the process, and know how to get the best from the improvements once installed.

Whole House Approach

Our retrofit designers follow the whole-house approach, designing systems where heating, insulation, ventilation, and energy sources work seamlessly together. Instead of focusing on isolated upgrades, we create integrated solutions that maximise efficiency, deliver lasting benefits, and prevent the risks of incompatible retrofitting.

Risk Management & Building Performance

Our designers apply advanced building physics principles to manage potential risks such as moisture, overheating, and ventilation issues. This ensures every design is not only energy efficient but also safe, durable, and suitable for all property types, including traditional and heritage homes.

Compliance and Quality Assurance

All our designs are developed in line with PAS 2035, ensuring full compliance with the latest UK energy-efficiency regulations. We produce clear and robust documentation—including design specifications, option evaluations, and medium-term plans—so that every project is fully accountable from start to finish.

Our experienced designers also undergo continuous professional development and remain connected with leading retrofit networks, ensuring your project benefits from the latest industry standards and innovations. Above all, we are committed to delivering high-quality solutions that go beyond compliance, providing lasting comfort, performance, and value for your property.