Author Archives: wpadmin

5 reasons why you should insulate your home before winter

Winter is coming! With colder weather just around the corner, it’s time to start thinking about how to keep our homes warm and cosy. One of the biggest factors that help reduce cold air entering your home and keeping the heat in is insulation.

Here are 5 reasons why you should insulate your home before winter.

Good quality insulation will help retain warmth within your home, meaning you won’t need to use your heater as much! Insulation is designed to keep your home cool during the summer, and warm in winter, so that your A/C and heaters won’t need to be used as often. Not only will your energy thank you in winter, but all other seasons too.

Nobody likes those chilly winter drafts. They’re usually caused by holes and gaps that allow cold air to enter your home, meaning you probably have poor insulation. Good quality insulation can help block out those gaps and holes to ensure warm air stays in, and the cold air stays out.

Cold floors make it that much harder to get out of bed during those cold winter mornings! Floor insulation can make a huge difference in making your floors feel warmer and comfortable during winter.

Many homes suffer from freezing pipes in the winter, which is often caused by major air leakage in your crawlspace or basement. This can lead to a pipe burst which can result in expensive repairs. Pipe lagging can help prevent freezing pipes so that it doesn’t burst in the first place.

You’ll want to insulate your home before winter rolls around, as contractors’ schedules’ fill up very quickly in colder months. So, the longer you wait to insulate, the longer you’ll have to put up with a cold home. It’s a good idea to prepare before the winter rush comes along.

Get in touch with us at CosyWall Insulation to help keep your home warm this winter!

How to keep your home warm this winter

We’re only few months away from winter, so it’s time to start preparing! Colder weather results in colder homes, which can affect our health. It’s important to start thinking about how to protect you and your family from cold’s, flu’s, and other nasties this winter – including how to keep your home warm to help reduce the risks of catching those winter woes.

Here’s some tips on how to keep your home warm this winter.

While many winter days may be rainy and cloudy, we often see winter days with the sun out and shining. Even on cold days, the sun is still warm. So once the sun is up, capture in that free heat by opening up your curtains and letting that sunshine in before you leave your house in the mornings.

Like opening up your curtains during the day, it’s important to shut them as soon as it gets dark. Curtains act as another layer of insulation to keep warmth and dryness in your rooms. If you don’t have quality curtains, and are thinking of replacing them – think about getting ‘thermal’ curtains which are best at keeping the warmth in.

Every room has a warmer and colder point depending on where your windows and doors are positioned. You will feel warmer if you position yourself closer to the inside of the house, because your cold, external walls are further away. Or perhaps your sofa is currently near a window. In this case, you may feel warmer if you move your sofa to a position in the room where it’s further away from your windows and doors. Think about practical ways you can rearrange your furniture to maximise warmth within your home.

Ever noticed that cool draft in your home that comes out of nowhere? That’s often due to leaks through windows, doors, basements, and other spots in the house. Walk around your home to figure out where that draft is coming from, and seal it. Windows and doors are best solved with spray foam insulation, and other holes can be blocked by caulk.

Architecture Now states that 10% of heat is lost through wooden floors. If you’ve got wooden floors in your home, it’s a good idea to make use of rugs to keep your rooms warmer. If you want to go the extra mile, opting for carpet can do wonders in making your home feel warmer and cosier.

It’s estimated that homes without sufficient insulation lose 42% of its heat through the roof, 24% through its walls, and 10% through the floors. That is a huge amount of heat loss! To ensure your home is warm this winter, it’s time to assess your current insulation. One of the CosyWall professionals can help assess the insulation in your home, and make necessary adjustments to improve your insulation.

4 signs you should replace your home’s insulation.

Insulating your home is one of the best things you can do for your health, wallet, and investment. Just like anything though, it’s vital to ensure that it is up to date and installed correctly, so that you can reap the best benefits of home insulation. There can be serious health and financial consequences if your insulation isn’t performing optimally – if your insulation is old or ineffective, it will literally pay to find out.

Here are 4 signs that it may be time to look into replacing your insulation.

Changing Indoor Temperatures.

If the indoor temperatures of your home are constantly changing, that’s a sign that your insulation should be replaced. Well-insulated homes take a while to respond to outside temperature changes, as good insulation impedes the transmission of heat. If your home responds rapidly to temperature shifts, however, that likely means your insulation has thinned down. You might either need to replace it or add more.

Indoor Drafts

 When parts of your insulation wear down, the winds can exploit your homes new found weakness, and then you get a suction effect where wind pushes its way through the gap and sucks warm air out of the house so the cold can replace it. The draft you feel is this cold air muscling its way in and shoving your warm air out.

Out of control energy bills

 If your energy bills are fluctuating rapidly as the seasons change, that’s a sure fire signal that your insulation is becoming ineffective. If in winter, your heater is working around the clock and in summer your air conditioner is cranking 24/7, then usually your insulation is to blame. Cooling and heating systems are necessary to maintain a consistent level of comfort in your home and add an extra level of control over your house temperature, but they shouldn’t be working overtime.

Wet Insulation

 If the insulation become moist, damp, or sopping wet, there is no salvaging the material. It must be replaced immediately. Blocked vents, a leaky roof, a basement flood, or the absence of vapor barriers can cause crawl space or attic insulation to get wet. Not only can wet insulation grow mould that releases dangerous mycotoxins in to the air, but the moisture causes the insulation to become ineffective. The tiny air pockets that are instrumental in trapping the air and maintaining the temperature are plugged with water, rendering the insulation useless.

Insulation is essential in living comfortably. Having quality, up-to-date insulation will ensure your house feels like a home year round.

If you’re worried about any potential heating or cooling problems, get in touch today. Our technicians are happy to help make sure you have everything you need to stay warm this winter.


Can you have too much insulation?

As hidden as insulation is behind the walls, up in the attic and under the floorboards, its benefits are not so obscure! You probably know by now (especially if you’ve read our blog before) that the right amount of insulation can help reduce energy bills and improve comfort all year round.

The key words there are “right amount.” If your home is not properly insulated or installed, then you’ll have a much harder time reaping the benefits of saving money and staying comfortable. The question of whether “too much of a good thing” crops up when there are concerns of going overboard with sealing a house and potential problems with doing so, such as moisture build-up and mold to polluted indoor air.

A house can definitely be under-insulated but today, let’s dive into the question of whether your home can be over-insulated.

First, let’s start with the basics: how does Insulation work?

During the winter, the air inside the home is warmer than the air outside. The insulation slows down the movement of energy from the warm area to the cold area, creating a thermal barrier that means your heaters or fireplace don’t have to work as hard to keep the home warm. The thicker the insulation, and the lower the U-value, the better this thermal barrier is and so the slower the heat will escape the home.

During a summers day when the temperature may hit 30 degrees, the air outside is generally warmer than the air in the home. With the heating off, the house warms up gradually through the day as the walls and roof absorb the heat of the day. But because the air outside is warmer the thermal barrier created by the insulation will again slow the movement of heat, but in the opposite direction. Warm air in the roof will not be able to penetrate into the home as easily, whilst insulation in the walls will prevent them from warming the home as quickly as well.

What about air quality if the house is too tight?

It is important for your home to have good air quality – poor air quality can be hazardous to health. Not all insulation is created the same. Insulating your walls with vapour resistant insulation, like we do, reduces condensation that is caused when the moisture from daily activities, such as cooking, washing, and bathing gathers on the surface of your walls. It’s an effective way to avoid the harmful effects of moisture in your home.

Insulation is vital for your home

Wherever you live and whatever the type of property, insulation is absolutely vital – especially with spiralling energy costs! And while there are potential risks of over insulating your home if you choose the wrong installer, there’s a much better chance you don’t have enough insulation, particularly if you’ve noticed:

• Higher than normal energy bills (without an increase in usage)
• Drafts or uneven temperatures from room to room
• Unusually warm second floor in your home

Installing Cavity Wall Insulation

It’s vital when upgrading your insulation to get just the right amount and to ensure that it’s properly installed. The team at CosyWall Insulation has you covered in this area. We install the highest quality materials and always ensure you feel confident and comfortable in your newly insulated home.

Get in touch today for a free assessment!

Can you install insulation yourself?

So you consider yourself a bit of a handyman? It looks easy right? Just rip off the GIB and throw some batts in the walls and your done – no need to hire an insulation company after all – right?

While a lot of people do attempt to install their own insulation, there’s a few things you should be aware of it you do. It can be tricky business and there’s a few health hazards to be aware off as well.

Choosing the right insulation.

First things first, make sure you choose the right insulation. Are you insulating your roof, your walls or your floors? Are you going to use foam, fibreglass, cellulose, mineral wool or polystyrene insulation? What R rating are you trying to achieve and do you have the equipment necessary to install insulation yourself?

Roof insulation could be different depending on what style roof you have and how much of a cavity there is to deal with. Many New Zealand roofs have large open attics and most people will use a loose fill or fibreglass batts. Installing insulation in your roof is probably the easiest type to do yourself, but it can be a time consuming job and you’ll need to be careful to ensure there’s no gaps in your installation.

Foam is also an option for your roof or walls but it’s a difficult substance to install at the best of times. Foam insulation is essentially is sprayed on wet and it dries into a durable layer of foam. It’s a messy process and can be rather unsightly.

Wall Insulation can also be challenging. If you’re doing this yourself it will probably mean pulling the GIB off the walls and finding the right Batts to put in. It can be a bit of a jigsaw puzzle to try and fit everything in around the frames and joists without leaving gaps, and even if you manage to get it all in place, you’re left with the daunting task of fixing up all your internal walls.

The floors, well that all depends on access under the house. Many people will either leave this one altogether or there’s also an option of fibreglass insulation rolls than can be stapled to the underfloor of your house.

Possible Health Risks when installing insulation.

Many insulation products can be quite hazardous to your health. It’s always important to have the right safety equipment including masks, goggles and a long sleeve shirt.

Some insulation products can contain small particles that can be easily inhaled. They can cause skin and eye issues and possibly lead to respiratory issues down the track.

You’ll also want to be careful about installing insulation around electrical wires and light fittings. If installed incorrectly, it could lead to electrical issues and put you at risk of a fire.

Perhaps you should leave it to the experts?

So in summary, yes, you can install insulation yourself but you need to make sure you know what you’re doing. But really, it’s a far more sensible idea to call an expert.

The team at CosyWall Insulation are experts in installing insulation. It’s a quick and easy process to get an assessment done on your property and we have specialised tools and products which make it much easier to install into your home. You can also rest assured that the job will be done right as CosyWall is Codemark certified and has a special auditor that ensures the quality and standard of your installation is done right. The best part – CosyWall Insulation is nationwide so regardless of where you are in New Zealand, we’re here to help.

Call the team at CosyWall today on 0800 267 992 or email for a obligation free chat.

Can Updating Your Insulation Increase Your Home’s Property Value?

When you’re selling your home, getting the highest offer possible is one of your biggest priorities. Although you can’t control factors like the current mortgage interest rates or the state of the economy, there are a few things you can do to increase the resell value of your home. One of the biggest ways to increase your home’s property value is insulation. If you’ve ever had to rug up with layers to stay warm indoors, you’ll understand why insulation is such a big draw card. Sadly for many of New Zealand’s older homes poor insulation (or no insulation at all) means cold houses.  And unimpressed buyers.

If you’re looking to sell your home for max return, it’s worth noting that insulation does more than just keep your house warm, it helps sell your house.

Here’s a few reasons insulation is worth installing if you’re looking to increase your home’s property value:

An insulated home is usually a well-looked after home

Potential buyers know there’s a good chance a home with good insulation is free of damp, mould or mildew problems.  It’s also a good indication that the owner of the home has looked after the property. Because insulation is integral to your home being healthy (Homes that are poorly insulated, damp, or cold can cause health issues like respiratory problems or diseases like rheumatic fever) and liveable, buyers are more likely to purchase a home that is ready to live in from the get go.

It’s less work for the buyer

While you’re looking for top dollar for your home, often buyers are stretched when it comes to meeting the purchase price. If further costs are involved, like installing insulation, they might be less likely to purchase. Much like the point above, a buyer is more likely to be interested in a home that is ready to live in and isn’t going to incur further costs or work. Installing good insulation before you go to market makes your home more appealing against the competition.

An insulated home is a more energy-efficient home

While insulation might not raise your home value in a visible way, like fresh landscaping or a new kitchen does, an insulated home pays a small return on the investment by lowering  heating and cooling bills. A fully insulated house needs about half the heating of an uninsulated house. Efficiencies in your home also mean there is less waste of valuable resources as reliance on natural resources is minimised.

As well as being a sure fire way to increase your home’s property value as well as helping your house to become more comfortable and liveable. With all the benefits of an insulated house, it has been recognized by the New Zealand government that insulation is compulsory for a comfortable  and As of July 1, 2019, rental houses New Zealand wide are required to be insulated. To find out more about insulating your home, contact us for an assessment.

Is all insulation the same?

We’ve mentioned before how insulation helps to reduce energy costs and keeps your home more comfortable. However, insulation comes in many different types, applications and efficiencies. It can be tempting to think that putting in some insulation will be a magic bullet, but it’s actually more complicated than that. Is all insulation the same?

Today, we’re going to look at the different types of insulation and whether they are all created equal.


There are 5 main types:

1. Batting (Fibreglass, Rockwool, Polyester): Batting comes in sheets and rolls to be cut and placed into roof cavities and under floors. It’s difficult to install in walls, except during construction. It can also release inhalant microfibres that cause respiratory issues. Also compresses fairly easily, reducing its effectiveness. It can be installed DIY, but as we’ve said before, there are complications there.

2. Loose-fill (fibreglass and cellulose): Loose-fill is blown into cavities to create a layer that settles. It’s lightweight, so great for unreinforced ceilings and walls, adding insulation but not too much weight. It’s easier to install in tight spaces, especially cavity walls which are notoriously under-insulated. For example, CosyWall insulation is water repellent and made from glasswool making it extremely useful in our New Zealand climate.

3. Structural insulated panels (polystyrene and polyisocyanurate): Best installed during building, as the panels cannot be squeezed into tight spaces. Offers great insulation, but can work too well, encouraging damp. Panels emit toxic smoke when burned. Polyisocyanurate is a foil-type insulation, which works extremely well, but because it’s a foil barrier, it tends to encourage damp by not allowing any movement of air or moisture at all.

4. Polyurethane spray foam (open-cell and closed-cell): Sprayed into cavities (requiring minimal access) and expands to fit all available space. Great for cavity walls and tight spaces, and can be installed in new builds or already finished houses. Open-cell stops the movement of air and closed-cell stops the movement of both air and moisture.

Each material has different costs, benefits, disadvantages, and R-value. The R-value is the thermal resistance it offers or its efficiency at regulating the temperature.


Basically, everywhere. Here’s how it works: air travels from one extreme to another, until all temperatures are the same. Insulation creates a thermal barrier that helps to slow the movement of air in both directions. So if you want to keep your indoor temperature stable, you need to have a well-insulated home. Warm air can escape through all of your home’s barriers. It’s important to complete the thermal envelope by insulating your ceiling, floor and — most importantly and most forgotten — your walls.


As you can see, all insulation is not created equal. It has different costs, benefits, disadvantages, health and installation concerns, efficiencies and effectiveness. Installed well and properly, insulation can reduce heating costs, prevent the growth of mildew and mould, and keep your home a comfortable and stable temperature and ensuring a healthy home.

If installed incorrectly, it can affect your health, be less effective at thermal control and encourage the growth of damp issues. Insulation also ages, compressing and creating holes in the thermal envelope. It’s important to update your home’s insulation especially if your home is old.

Not sure when your home was last assessed for insulation? Give us a call or email us call on 0800 267 992 or to chat, obligation free, about your home. And if you’d like to find out more about heat loss, energy savings, renovation and insulation, check out our other articles.

4 ways to make your home more energy efficient

Did you know that you can adopt some new ideas and habits that not only reduce your impact on the environment but also create a healthier situation for your home? Living a more green life doesn’t have to be costly – in fact, quite the opposite! Creating a more energy efficient home will save you a lot of money in the long run with different innovations and renovations helping you cut bill costs.

Did you know that you can adopt some new ideas and habits that not only reduce your impact on the environment but also create a healthier situation for your home? Living a more green life doesn’t have to be costly – in fact, quite the opposite! Creating a more energy efficient home will save you a lot of money in the long run with different innovations and renovations helping you cut bill costs.

Read on to find out four ways you can make your home healthier for you and the planet.

Insulate your home

Your home insulation is one of the most important features to consider when you’re trying to save energy. A fully insulated house needs about half the heating of an uninsulated house – that’s huge! Many New Zealand homes have poor insulation or no insulation at all which means higher reliance on heaters and fans in a bid to warm or cool down the house during different seasons. Wall insulation. on the other hand, can help save up to 35% of your homes heat.  It’s also important to inspect and upgrade insulation as Old insulation doesn’t have the same insulative properties as newer insulation. Efficiencies in your home also mean there is less waste of valuable resources as reliance on natural resources is minimised.

Put your house to bed

At the end of the day, you’re not the only one who needs a break. Your home needs to unwind and unplug. Having unneeded appliances and electronics running constantly will drive your overall energy costs through the roof – save on this by simply unplugging and switching them off.

Seal All Windows

Go the extra mile by sealing the air leaks in and around the windows in your home. If your windows are drafty, consider adding weatherstripping around the frames. Add a bead of silicone caulk over any cracks in your drywall or apply a sheet of shrink film to your windows. Sealing gaps and cracks is an easy and inexpensive way to lower energy costs.

Replace Incandescent Bulbs

Halogen bulbs, compact fluorescent lamps (CFLs) and light-emitting diode (LED) bulbs offer longer lasting light and are more energy-efficient than your old incandescent bulbs. Since the average home uses 40 bulbs, switching over to greener bulbs is a great way to save on your electrical bill. Sure, the upfront cost is a bit more, but you will save more money in the long run because they last longer and use less energy.

Dimmers are also a great way reduce energy costs as you’re able to control the wattage that the lightbulbs use. great way to set the ambiance of a room. Another handy tip for having dimmers is that they can also extend the life of your lightbulbs.

To find out more about making your home more energy efficient with insulation, get in touch today!

10 DIY home hacks you’ll love

Home maintenance and cleaning isn’t always fun, but it can be with these DIY home hacks! Here are 10 easy ways to help you keep your home tidier and more organised.


Nothing’s more annoying than pulling out the wrong chord from a full power extension outlet! Use washi tape to add labels to the various cables plugged into your power strips. That way, it you ever need to unplug something, you can do so without accidentally cutting out the TV or phone!


Re-arranging furniture around your home can be exciting, until you see all those dented marks on your carpet. To get rid of them, all you need is some ice cubes!

Place the ice cubes along the carpet dent and wait for them to melt. Once they’re melted, wipe up the excess water with a dishtowel and voila! Your carpet should turn back to its original state.


Don’t be fooled – shore organisers don’t only need to be used for shoes. They’re extremely useful for organising a whole bunch of other things! From your shower supplies, craft supplies, and makeup – they are so versatile they can virtually be used for anything.


Cleaning blinds is a tedious job. Make your life easier with this DIY blind cleaner that’ll save you a heck of time.

All you’ll need is a pair of tongs, two microfibre dust cloths, and 4 rubber bands. Follow the instructions in this video and get ready for the most efficient blind cleaning hack ever!


Cleaning places like your bathtub and shower takes a lot of elbow grease. If you’ve got a cordless drill at home, simply add on a brush or foam ball to the tip and turn it on! It’s tough on grime and will help you clean with ease.


Spotted a tiny hole in your window? Clear nail polish can help. Simply apply a coat then wait for it to dry. Repeat until the layers of nail polish are flush with the glass surface.


Got some copper items at home that are looking tarnished? Tomato sauce can do the trick. Trust us, this is no joke! Squirt some sauce on a rag, sprinkle on some salt on top and then rub the mixture on your item. Repeat until you’ve covered every inch of the surface, and then rinse. Once done, your item will look good as new.


Keen to make your own natural cleaning solution? White vinegar can do wonders. You’ll need 1 part vinegar, 3 parts water, and 1-2 teaspoons of lemon juice. Add the mixture into a spray bottle and fill the remaining amount with hot water.

You can even infuse the mixture with other essential oils to make the solution smell amazing.


Placing chalk in your toolbox can help keep your metal tools rust-free. Chalk is a moisture-sucking material that traps dampness. If you place several pieces throughout your toolbox, it’ll protect your items from rusting.


Applying caulk in a straight line isn’t an easy task! Painter’s tape can help. You’ll need to clean the area you’re caulking first, and when dry, apply the painters tape to the area you’ll be caulking. Start caulking, and make sure to peel off the tape while the caulk is still wet.

Fore more DIY and home tips, head to the CosyWall Insulation blog!

5 tips for renovating in winter

Renovating this winter? It’s not always an easy feat with chilly and unpredictable weather, however, sometimes it just has to be done! While it may be the most difficult time of the year to undergo a renovation project, there are a few ways to make your winter renovation more manageable.

Here’s 5 tips to make your renovations go a little smoother this winter.

Planning for renovation in any season is essential, however, it’s doubly important in winter. Cold and nasty weather can complicate some of the processes of your renovation – deliveries, demolitions, and other external repairs. It’s important to plan for all of this ahead of time by buying and receiving deliveries of bigger equipment and products earlier, before the worst of winter hits.

The likelihood of any renovation delays increases during winter due to the weather and lack of daylight hours that can slow down progress. This is why it’s important to prepare for any delays you may experience during your renovation and ensure your start and completion dates of the project are flexible enough to take into account any unforeseen circumstances that may affect when the work will be finished.

With rain and windy weather forecasted during your renovation, you’ll need to ensure your home is protected once your tradies leave for the night. Things like plastic sheets, and boards can help cover holes, and block out the wind and rain to protect your home from any damage during your project.

Winter weather can be unpredictable, so you don’t want to take on more than you can handle. Keep to one or two small projects at a time to ensure it gets done and is finished correctly. Any other major renovation projects you want to undergo can wait till winter’s over.

When renovating in winter, it’s crucial to hire trustworthy professionals to help you do the job. Trying to save costs by using the cheapest freelance builder can cost you more in the long run. Someone who has no experience renovating in winter can ruin important aspects of your renovation.