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Airtightness in buildings is crucial for controlling condensation and maintaining both structural integrity and occupant health. By preventing air leakage with well-designed air barriers and vapour control layers, the risk
When you’re building or changing a home, a SAP calculation makes sure it meets energy rules and doesn’t waste power. We help with every step, starting from your first drawings
We all want to save money and stay warm, and a home energy assessment is a great way to start. When we book one, a trained assessor visits our home
When you’re building a new home in the UK, you need something called a SAP calculation to show your house meets the rules for energy use and carbon emissions. We
When you’re building a new home in the UK, a certified SAP rating assessor helps work out how energy-friendly your design is. SAP stands for Standard Assessment Procedure, and it’s
We care about helping you get the most out of your property, and that starts with understanding how it uses energy. An Energy Performance Certificate (EPC) shows how your home
At Ratio Seven, we carry out SAP energy assessments to help people understand how their homes use heat, light and air so they can make smarter choices when building or
We help builders across the UK with airtightness testing because getting it right first time saves stress, time and money. When air leaks out of a new build, it drives
When you build a new home, one of the key things you’ll need is something called an Energy Performance Certificate, or EPC. We help with this from start to finish,