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SAP air tightness certification checks how well a home keeps warm air in and stops draughts getting through gaps and cracks. We test this by using a fan to push or pull air through the building and measure how much escapes. If too much leaks out, your house will be
We know building projects can feel confusing, especially when it comes to rules and approvals. That’s where we step in, to make things clearer and easier from the start. We work with homeowners and professionals to help spot problems early, avoid delays, and make sure everything’s safe, legal and built
We test how much air leaks in or out of a building when it’s meant to be sealed up tight. This matters because if too much air escapes, your heating or cooling has to work harder, meaning higher bills and more stress down the line. At Ratio Seven, we help
We know starting a building project in the UK can feel like stepping into a maze of rules, but that’s where we help. At Ratio Seven, we make building regulations simple to understand and easier to follow, whether you’re planning a new build, a loft conversion or a shop refit.
When you’re building anything from a small extension to a full development, staying on the right side of the rules makes a big difference, and that’s where we come in. We work with self-builders, architects and developers to make sure building regulations are followed from the start. That means giving
We get asked all the time what air pressure testing is and why it’s needed, so here’s the easy answer: it checks how much air leaks from your building. Too many gaps make your home cold and expensive to heat, and it can even stop you from passing building regulations.
Building compliance means making sure your project meets the rules set out in the UK’s Building Regulations, covering things like safety, ventilation, energy use and fire protection. We help you understand what those rules mean in real life, before the build starts, during the work, and when it’s time to
SAP Calculations are energy checks we do for homes across the UK, and they’re needed when building a new house, converting a space into a home, or adding a big extension. They show how much energy your home will use and if it meets rules on heating, lighting, and more.
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