If you’ve ever wondered whether your home has cavity walls, you’re not alone.
Many homeowners are unsure about this key feature of their property, which can play a major role in energy efficiency and comfort. Understanding the type of walls you have is crucial when it comes to insulating your home effectively, and it can also help you identify areas where energy is being lost.
While an Energy Performance Certificate (EPC) can tell you a lot about your home’s insulation, they often rely on assumptions and may not always be accurate. As your trusted cavity wall insulation experts, we’ve put together a simple checklist to help you figure out whether your home has cavity walls. Plus, we’ll explain how we can assess your property thoroughly and recommend the best solutions.
1. Check the Energy Performance Certificate (EPC)
The EPC is one of the first places to look when trying to determine whether your home has cavity walls. If you have one available, it should give you a general overview of your home’s insulation. However, it’s important to keep in mind that EPCs sometimes make assumptions about insulation based on the age and style of the house, so they may not always be fully accurate.
2. Look at the Age of Your Property
One of the easiest ways to gauge whether your home has cavity walls is by considering when it was built. Homes built between the 1920s and 1980s are often more likely to have cavity walls but may not have been insulated as standard at the time. If your home falls into this age range and there’s no evidence of a retrofitted insulation installation (like wall vents or previous insulation work like drill holes), then it’s likely your cavity walls are empty and would benefit from insulation.
Pre-1920s Homes: These are more likely to have solid walls (without cavities) and may require different types of insulation solutions.
1980s and Later: Homes built after the 1980s tend to have cavity walls that are already insulated as part of the construction process. However, some properties may still need additional insulation if it wasn’t installed properly or has degraded over time.
3. Check the Brick Pattern
A simple way to check for cavity walls is to look at the pattern of the bricks on the outside of your home. If your home has cavity walls, the bricks will most likely have an even, consistent pattern with the bricks laid lengthways. This regular brick pattern often indicates that there’s a cavity wall construction behind them.
In contrast, older properties or homes with solid walls tend to have a more irregular or thicker pattern, and the bricks may be arranged in a less uniform manner. A uniform brick pattern with bricks laid lengthwise is a strong sign that your home has cavity walls.
4. Examine Your Wall’s Exterior
You can sometimes determine whether your home has cavity walls by looking at the external brickwork. Double-brick walls or walls with regular-sized brick patterns are often signs of cavity walls. On the other hand, if your home has a more solid-looking, dense brick wall, it could be a solid wall, not a cavity wall. You can also look at door frames, if the wall is more than 260mm thick, it is most likely a cavity wall.
5. Hanging Wall Tiles?
If you’re thinking about installing tiles or already have them hanging, you might be wondering whether there’s a cavity behind them. This can vary depending on the building’s construction, as some homes have solid walls with no cavity behind tiled surfaces. To know for sure, we’ll conduct a thorough survey of your walls to check for cavities and determine the best insulation solution.
6. Get a Professional Survey
If you’re still unsure about whether your home has cavity walls or whether they are insulated, the best way to find out is with a professional survey. We specialise in cavity wall insulation and can conduct a no-obligation survey to give you a clear picture of your property’s insulation needs. Our experts will assess your walls, check for cavities, and determine if they’re suitable for insulation.
Why Cavity Wall Insulation Matters
Cavity wall insulation offers significant benefits, including:
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Lower energy bills: Insulating cavity walls prevents heat from escaping, reducing the need for constant heating.
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Increased comfort: Better insulation keeps your home warmer in winter and cooler in summer.
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Environmental impact: Proper insulation reduces energy consumption, making your home more eco-friendly.
Let Us Help You Assess Your Walls
Understanding whether your home has cavity walls and whether they’re insulated is crucial for maintaining energy efficiency and comfort. If you’re unsure or would like a professional opinion, we offer a no-obligation cavity wall and loft insulation survey to help you identify the best solution for your home.