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At Ratio Seven, we test how airtight your building is by checking for any gaps where warm air might sneak out. It’s all about helping you keep heat inside, cut energy bills, and meet current building rules. We use a special fan to spot leaks and let you know what needs sorting, whether you’re building a new home or managing a big commercial site. Our team is friendly, reliable, and always ready to guide you through the process, step by step. With clear reports and advice you can trust, we’ll help you get your project over the line without the stress.

Airtightness testing, also known as blower door testing, is pivotal in whole-building life cycle assessments, significantly influencing energy efficiency and operational emissions by minimising air leakage and reducing the need for heating and cooling. This testing is essential for Whole Life Carbon Assessments, as it mitigates operational carbon emissions by curbing energy consumption across a building’s lifespan. Furthermore, airtightness enhances indoor air quality and the durability of buildings by controlling moisture levels, thereby preventing mould growth and structural degradation. As airtightness compliance becomes more widespread, it aids in standardising building performance, all while providing valuable data to benchmark and enhance the sustainability of both new and existing structures.

Permeability testing, also known as air tightness testing, plays a vital role in enhancing energy efficiency by identifying and rectifying air leaks in buildings. In Leicester, this process is not only crucial for reducing energy wastage and operational costs but is also mandated under Building Regulations Part L1A, ensuring buildings are environmentally friendly. Ratio Seven, an ATTMA registered provider, offers expert services in air tightness testing, employing certified testers and calibrated equipment to deliver dependable results and guarantee compliance with the latest standards. By conducting these tests during the construction phase, they provide a cost-effective solution to achieving optimal energy performance in buildings.