How to Tell If Your Home Has Wall Insulation and What to Do if It Doesn’t

Many homes across New Zealand were built before wall insulation became standard. If your home was built before 1990, feels cold, damp, or hard to heat, it might be missing insulation in the walls. The good news is there’s a simple and effective way to fix that.

This article will help you work out how to tell if your home has wall insulation, and what you can do if it doesn’t.

Signs Your Walls Might Not Be Insulated

There are a few clear signs to watch for.

Weepy windows

If your windows are often foggy or covered in condensation, especially in winter, that could be a clue. Cold walls and poor insulation can lead to high indoor humidity. When that damp air hits cold glass, it turns to water.

Mould and mildew

Check the corners of rooms, behind furniture, and inside wardrobes. If you see mould or a musty smell, it might be because the walls are staying cold and trapping moisture.

High power bills

If your heating bill seems too high or your home never really feels warm, heat could be leaking straight out through the walls. You might have insulation in your ceiling and under the floor, but uninsulated walls can still let out a lot of warmth.

Hard to heat rooms

Some rooms might always feel colder than others. This is often a sign that there’s little or no insulation in the walls.

Chilly drafts

If you feel cold air coming through the walls or around switches and power points, your home may be missing insulation.

What to Do if You Think Your Walls Aren’t Insulated

If you notice one or more of these signs, it’s a good idea to get your walls checked. Not all insulation can be seen without taking off the linings, so it helps to talk to someone who knows what to look for.

At CosyWall Insulation, we specialise in retrofitting insulation into existing walls. Our team can assess your home and let you know what’s going on inside the walls.

We also offer obligation-free quotes, so you can get a clear picture of the options and costs.

Why CosyWall Insulation Is a Good Choice

CosyWall is a blown insulation system made for the walls of existing homes. It’s different from batts, which need the linings to come off the walls before they can be installed.

With CosyWall, we drill small holes into the outside or inside walls, depending on the type of cladding. Then we use special equipment to blow insulation into the wall cavity, filling it right to the edges. This creates a solid thermal barrier with no gaps or cold spots.

Once the job is done, we reseal and patch the holes. In most cases, the whole process is completed in just a day or two, with very little mess or disruption.

Benefits of Insulating Your Walls

Wall insulation makes a big difference to how your home feels and how much energy it uses. It helps keep your home warmer in winter and cooler in summer, so your heating system doesn’t have to work as hard. This means lower power bills and a more comfortable, healthier home. It can also reduce noise between rooms and from outside. CosyWall Insulation is designed for New Zealand homes and has already been installed in thousands of properties across the country. It meets strict building code standards and is CodeMark certified.

Get a Free Quote

If you’re unsure whether your walls are insulated, or if you know they’re not and want to do something about it, get in touch with CosyWall Insulation. We’ll arrange an assessment and provide a clear recommendation.