Quality. Quietly.

Ceiling insulation services across Auckland.

Straight advice. Sharp pricing. Proper installs.

If your home feels cold in winter, ceiling insulation is the first place to start. It’s one of the easiest upgrades you can make, and hands down the best bang for buck. Heat rises, and most older homes in Auckland lose a ridiculous amount of warmth straight through the ceiling. Insulation is just as important in summer, your roof cavity heats up like an oven and without good insulation this reservoir of heat easily transfers into the home not only during the day but long into the evening. We retrofit and replace ceiling insulation across all of Auckland, town and rural. We’re a small, hands-on team so you’ll deal directly with the person responsible for the outcome. No sales people or drama. Easy experience, straight advice, and multiple options quoted quick.

The Importance of a Properly Insulated Ceiling

Why Insulate Your Ceiling?

Without proper ceiling insulation, your home could be chilly in the winter and stifling in the summer. Installing high-quality insulation helps create a thermal barrier, keeping the heat where it should be – inside in winter, and outside in summer.

Efficiency & Economy

A well-insulated ceiling means you won’t need to crank the heat or blast the air con as often, which saves you money on your energy bills.

Minimise Health Risks

Improving the overall comfort of your home and reducing the risk of damp, mould, and condensation.

What we actually do

Our retrofit ceiling jobs fall into one of two buckets:

1. Top ups

If the existing insulation is dry and in reasonable condition, we can often install over the top and lift the overall R-value. This is the most cost-effective option when it suits.

2. Full replacements

If it’s old, dusty “insul-fluff”, patchy, damp, or rodent affected the top up layer might not perform to its stated performance (r-value). In that case we remove it and start fresh, so you’ve got a system that performs properly and lasts.

"Can you just go over what's already there?"

Often yes. If it will act as a good base layer, we can often install over. A lot of homes have existing bulk-fill (batts) and loose-fill insulation (blow-in “fluff”) and while some of it holds up well, some of it turns into dusty nothing over time - especially old blown in cellulose. Check out this page for a deeper insight into ceiling insulation.

If it’s uneven, moisture-affected, or a mess to work around, we may suggest removal. We’re not big on charging you twice for the same outcome.

Glasswool vs Polyester (the straight answer)

We install two types of ceiling insulation:

Glasswool batts is the best value option. It’s proven, cost effective and available in high R-values.

Polyester blanket is the premium option. It’s durable, moisture resistant and performs

consistently long-term (no settling/compaction).

But premium doesn’t always mean “best for your home”. Blanket products suit some situations perfectly and look mint - but in older or irregular ceilings, they can be awkward and involve too much cutting to justify the extra spend. This is especially the case when you have no existing insulation.

In these situations, we recommend a hybrid system: glasswool between joists + polyester blanket over the top. It’s a high performance result without wasting money.

We’ve got a page here where we provide deeper technical insights into glasswool vs. polyester as well as general considerations.

Why insulation installs fail

Ceiling insulation is seen often seen as DIY job. It can be — but only if it’s installed properly.

Performance drops fast when you’ve got leaks like:

• gaps between pieces

• insulation tucked/compressed

• missing sections around eaves

• clearances ignored around old downlights

• insulation moved aside and never put back

We install to NZS4246:2016 and best practice because these small details are the difference between “done by a weekend warrior” and “actually works”.

Awkward roof spaces are our thing

Some ceilings are easy. Some are tight, dusty, low-pitch nightmares with obstructions everywhere. That’s fine, we do these every week. We’ll work around these issues, keep things cheerful but most importantly ensure an effective and long lasting result.

Pricing + quoting (simple process)

We price fairly and keep it straightforward. No deposits. No gimmicks.

If you want a quick ballpark, use our insulation cost calculator. Otherwise, text us your address and we’ll take it from there.

Ceiling Insulation FAQ's

How much does ceiling insulation cost in Auckland?

Often cheaper than you’d think, we’ve got a handy calculator you can use as an estimate. Some jobs we supply and install at a rate very close to the public’s cost of materials. Ultimately, cost will depend on roof pitch/access, and whether we’re topping up or doing a full removal + replacement. Send your address and there’s a high likelihood we can quote multiple options fast without the need for a visit.

What R-value ceiling insulation should I get?


For Auckland, we recommend R3.6 as a minimum top-up layer. Higher R-values should be considered, especially if long term occupancy is the plan but only if your roof space can physically fit it.

Is ceiling insulation worth it?


YES. It’s the quickest and most cost-effective energy-efficiency upgrade you can make to a home and should be prioritised. It reduces heat transfer immediately and makes heating/cooling more effective and cheaper.


Can you install new insulation over old insulation? Do you remove old ceiling insulation?

Often yes, if the existing layer will act as a good base, i.e. dry, flat and evenly dispersed. If it’s damp, uneven or severely rodent affected, removal may be the better long-term call. We remove loose-fill (vacuumed) and old batts (by hand) where needed. Check out our ceiling insulation insight page for more detailed information and advice. 


Do you offer grants or subsidies?


Unfortunately, we are not providers of EECA related subsidies & grants. For Healthy Home and Green loans offered by banks we have extensive experience in these jobs and our quotes are trusted and approved without issue.

Can you install insulation in a low roof cavity / tight eaves?


Yes and this is where experience matters. We install to best practice and still aim to get insulation right to the top plate without causing clearance issues.


Is polyester ceiling insulation better than glasswool?


Polyester is premium due to its durability and long-term performance, but it isn’t always the best fit for every ceiling. We’ll recommend the options that make sense for the house, not what makes the invoice bigger.


How long does ceiling insulation last?

Good insulation installed properly lasts decades. While glasswool insulation can compact and settle in time, this is gradual and minor. Our installs come with double peace of mind - our workmanship guarantee and a manufacturer’s warranty on material. 


Does ceiling insulation help with dampness or mould?


Yes, it helps by reducing condensation risk (warmer surfaces = less moisture condensation). But dampness also depends on ventilation and moisture sources. 


Is ceiling insulation required for Healthy Homes?

Yes, rental properties need ceiling insulation (>R2.9 and/or 120mm) to meet the Healthy Homes standard (with some exemptions). We can quote, install, and provide documentation.


How long does the job take?

Most top-up ceiling insulation jobs are completed within several hours with minimal disruption. Bigger jobs and/or awkward access may take longer. 


What brands do you use?

We can supply & install Mammoth and TemperTherm polyester ceiling products. For glasswool our options include Pink® Batts®, TemperTherm and Earthwool.

We're rated a flawless 5-stars across 200+ reviews on Google, Builderscrack and NoCowBoys

Check out some of our detailed reviews on Google , NoCowboys or Builderscrack

Alex and his team installed some Mammoth insulation on one of our projects, in Takapuna. They did a marvellous job, and Alex arrived when he said he would, and completed it very quickly, considering this particular product takes a long time to install. Will be using Kaiser Insulation on our next project. Cheers Alex!

Rory

So happy with my insulation job completed by Alex and his team of professionals. Alex responded to my enquiry promptly and my job requirements with some different options which gave me choices and all at very good pricing . His team were punctual, incredibly polite and friendly and extremely efficient. They over delivered and left the property in a very tidy and clean condition, taking all their rubbish away with them. I would recommend Kaiser Insulation to absolutely anyone for price, efficiency and service with a smile. The PS3 and Branz information were provided promptly at the end of the job in time for the inspector. Well done guys! and Thank You So Much Alex. You are running a great business!

Kathryn

Alex, Simon & Alesana. Three of the nicest guys you will meet. Alex gave me an unbeatable quote, and some great advice. His pleasant nature made me feel I was making the right decision. Simon & Alesana, who were so friendly and respectful, then did an amazing job on the installation. On the very first night I could feel the difference in the warmth of my house. I am very happy with my insulation. Take care guys, and thank you!

Wayne

We had an amazing experience with Kaiser insulation team on our 1910 villa! Alex, Simon and Alesana were incredibly friendly, professional, and clearly took real pride in their work. Everything was done with great care and attention to detail, the install was super tidy and neat, and they left everything spotless. Along with a great service, the pricing was competitive. We’ve already been recommending them to friends and will absolutely use them again in the future. Couldn’t be happier! If you are looking for an insulation company, look no further, these are your guys!

Alice

“Alex from Kaiser Property helped me install ceiling insulation in order to achieve Healthy Homes Requirement. Alex had exceptional communication and was able to provide me with a competitive quote compared to that of other tradesmen from builders crack. Alex turned up on time and completed the job in the timeframe he previously discussed. Alex upgraded my quoted insulation spec to a superior product free of charge. The installation was very professional. Could not recommend more!”

Really happy with the work that Alex and his team did with installing underfloor and ground moisture barrier at my house. Very professional and efficient from giving a quote to completing the job. The price quoted was very competitive and he also charged me less after the job completion as the job was less than the quoted measurement which shows his honesty. Highly recommend Alex and Kaiser Insulation for any insulation job.

Amin

Get in touch

Fill in the form below and we will be in touch as soon as we can.

Genuine insulation enquiries only, please. Salespeople, save us both the trouble.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Instantly Estimate Your Ceiling Insulation Costs

Wondering how much ceiling insulation costs in NZ? Get a fast, no-obligation estimate using our Insulation Cost Calculator — the only tool of its kind in New Zealand.

Simple to use — enter your home size and insulation type
Provides instant estimates for ceiling, underfloor, and moisture barrier insulation
Based on real, up-to-date pricing
Perfect for comparing options and planning your budget

Our calculator is designed specifically for NZ homes and provides far more accurate results than generic overseas tools.

Bonus: You can also request a detailed quote after calculating your price — no pressure, no obligations.

Try the Insulation Cost Calculator →