Cavity Wall Insulation in Perth
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AI-assisted job brief
Cavity Wall Insulation · Perth
Vetted professionals for Cavity Wall Insulation in our network are ready to quote.
Local insights
We mapped the market so you don't have to
We fetched cavity wall insulation businesses in and around Perth from online sources, then analysed ratings, review volumes, and recent feedback with AI to surface patterns and a side-by-side comparison. Skim the numbers below, then scroll for the full rundown, review notes, and FAQs.
Snapshot - in and around Perth.
15
Suppliers in scope
4.8
Avg. Google rating
1,159
Reviews analysed
At a glance
Perth Cavity Wall Insulation suppliers
Compare local cavity wall insulation suppliers around Perth in one place. Each item shows star ratings, total reviews, distance from the centre of Perth, and an AI-assisted analysis of real customer feedback.
Insulation Extract
Google: 4.9 / 5 · 645 reviews · 18.1 km from search centre
AI-assisted analysis of public reviews:
Reviewers repeatedly praise clear communication, punctual crews, careful workmanship and a very thorough clean-up after removal and install jobs. Several also mention honest advice without upselling and a noticeable improvement in comfort and noise once the wall cavity insulation was done.
InsulGuard
Review noteGoogle: 4.4 / 5 · 110 reviews · 18.3 km from search centre
AI-assisted analysis of public reviews:
Most excerpts speak well of responsive quoting, tidy installs and helpful staff on both roof and cavity wall work. One detailed negative review raises serious concerns about property damage, insurance follow-up and incomplete removal, so this is one to read more deeply before booking.
Northern Suburbs Insulation
Google: 5.0 / 5 · 113 reviews · 0.0 km from search centre
AI-assisted analysis of public reviews:
Feedback is consistently strong on honesty, communication, punctuality and going the extra mile around ceiling repairs and scheduling. Reviewers also like the detailed advice, competitive pricing and tidy workmanship, with many saying the temperature difference was immediate.
Eco Insulation
Google: 4.8 / 5 · 45 reviews · 11.8 km from search centre
AI-assisted analysis of public reviews:
Customers describe smooth end-to-end service, clear explanations and crews that handle awkward roof spaces neatly and on time. After-sales support also stands out, with one reviewer saying the team returned within a day to fix a downlight issue.
Insulwest
Google: 5.0 / 5 · 12 reviews · 7.0 km from search centre
AI-assisted analysis of public reviews:
The small review sample points more to supply and advice than installation, with repeated praise for fast responses, helpful staff and product guidance. It looks well regarded, but the feedback is thinner and less specific to residential cavity wall jobs than some other Perth options.
Kings Insulation
Google: 4.8 / 5 · 67 reviews · 17.5 km from search centre
AI-assisted analysis of public reviews:
Reviewers highlight friendly service, solid workmanship and clean roof spaces after old insulation removal and replacement. One customer notes communication was not the strongest, but still felt the pricing and on-site work were very good.
WA Insulation
Google: 5.0 / 5 · 1 reviews · 18.1 km from search centre
AI-assisted analysis of public reviews:
There is almost no review detail here, so there is not much to separate this listing beyond its headline rating. With just one rating and no written comments, buyers would need to verify fit and experience directly.
ECO Bead Cavity Insulation Australia
Google: 5.0 / 5 · 6 reviews · 23.8 km from search centre
AI-assisted analysis of public reviews:
The limited but consistent feedback focuses on wall cavity and underfloor work that improved comfort and reduced heating or cooling needs. Reviewers also mention friendly service, being on time, staying within budget and coming back quickly when a room needed troubleshooting.
Cool Or Cosy Perth
Google: 4.8 / 5 · 18 reviews · 1.3 km from search centre
AI-assisted analysis of public reviews:
The insulation-specific comments praise willingness to tackle tricky roof spaces, knowledgeable advice and efficient installs. Some reviews relate to solar rather than insulation, so the sample is a bit mixed for judging cavity wall or whole-home insulation work alone.
WA Insulation Pty. Ltd
Google: 5.0 / 5 · 1 reviews · 18.1 km from search centre
AI-assisted analysis of public reviews:
There is only one written review, but it specifically mentions cavity wall Supafil and weekend flexibility to work around a builder. That suggests useful niche experience, though the evidence base is very thin compared with longer-established reviewed competitors.
Thermacon Insulation
Google: 4.8 / 5 · 23 reviews · 8.9 km from search centre
AI-assisted analysis of public reviews:
Reviewers describe Thermacon as responsive, competitively priced and strong on customer service from quote through install. The written feedback is very positive, though it mainly covers roof insulation and supply rather than cavity wall work specifically.
Mr. Insulation
Review noteGoogle: 3.4 / 5 · 33 reviews · 16.5 km from search centre
AI-assisted analysis of public reviews:
The supplied excerpts are all positive, with praise for efficient installs, fair pricing, clear communication and good results in comfort. Even so, the much lower overall rating than most Perth peers suggests the wider review history is mixed and worth checking in full.
Spray Foam Australia - Perth
Google: 5.0 / 5 · 57 reviews · 18.1 km from search centre
AI-assisted analysis of public reviews:
Customers consistently mention professional project management, good communication, careful prep and tidy completion on spray foam jobs. Several also say the thermal difference was immediate, especially in difficult underfloor or alfresco spaces.
Spray Foam Insulation Perth
Google: 4.9 / 5 · 20 reviews · 25.7 km from search centre
AI-assisted analysis of public reviews:
The reviews stress punctual, friendly service and very noticeable gains in comfort, noise reduction and shed usability after spray foam work. Cleanup and delivering what was promised are recurring positives, though the sample size is still modest.
Superb Insulation
Google: 5.0 / 5 · 8 reviews · 18.7 km from search centre
AI-assisted analysis of public reviews:
Reviewers describe Superb as professional, knowledgeable and tidy, with strong communication from quote to completion. Multiple customers mention on-time arrivals, reasonable pricing and a big improvement in indoor temperature after replacement jobs.
Cross-Review AI Analysis
What locals are saying in Perth
AI-powered analysis of all of the customer reviews from multiple suppliers in the area.
Perth’s reviewed insulation market looks fairly competitive, with many businesses attracting strong praise for communication, punctuality, tidy workmanship and clear advice on product choice. A common theme is old blow-in insulation removal followed by batts or cavity solutions, with customers often saying they noticed immediate comfort improvements and lower reliance on heating or cooling. Clean-up matters a lot in this category, and several companies are specifically praised for leaving roof spaces neat or checking lights and ceilings after the job. Honesty around recommendations also stands out, with some reviewers appreciating advice that did not push the most expensive option. For cavity wall insulation specifically, the most directly relevant review signals appear thinner than for roof insulation, so buyers may need to verify recent like-for-like experience. Review volume is strongest for a handful of major players, while several listings have only a few reviews or very limited written detail. The main clear risk signal in the supplied data is not price or product performance, but what happens when something goes wrong, including follow-up and accountability.
AI review notes
What public reviews mention in Perth
InsulGuard
- One reviewer described significant property damage during installation.
- A detailed complaint said follow-up and insurance resolution left the customer out of pocket.
- One review raised concerns that old insulation was not fully removed as expected.
Mr. Insulation
- The overall listing rating suggests mixed wider sentiment despite the positive supplied excerpts.
- Review samples here may not reflect the full spread of customer experiences, so low-star reviews are worth checking on Maps.
Local questions in Perth
Based on the supplied reviews, Insulation Extract and InsulGuard both have direct mentions of wall cavity work, with customers praising responsiveness, tidy installs and noticeable comfort gains. ECO Bead Cavity Insulation Australia and WA Insulation Pty. Ltd also have cavity-specific feedback, though from much smaller review samples. If you want more review depth overall, Insulation Extract has by far the largest volume in this set.
Northern Suburbs Insulation, Insulation Extract, Eco Insulation and Spray Foam Australia - Perth are all repeatedly praised for clear communication and smooth coordination. Reviewers for Northern Suburbs Insulation and Insulation Extract also specifically mention on-time arrival and detailed explanations. Kings Insulation gets good overall feedback too, but one reviewer did say communication was not their strongest point.
Yes, and it comes up often. Insulation Extract, Kings Insulation, Eco Insulation, Spray Foam Australia - Perth and Superb Insulation all have reviews mentioning tidy work or strong clean-up after removal and installation. That suggests cleanup is a meaningful differentiator in this market, especially when old loose-fill insulation is being removed.
The clearest caution in the supplied reviews is with InsulGuard, where one detailed review alleges major damage, incomplete removal and poor resolution after the fact, even though other reviews are positive. Mr. Insulation also deserves a closer read because its overall Google rating is much lower than most peers here despite the supplied excerpts being upbeat. In both cases, it would be sensible to read the lower-star reviews on Maps before deciding.
The biggest theme is immediate comfort improvement, with many customers saying their homes felt cooler in summer, warmer in winter or quieter after the install. Clear advice, efficient crews and respectful treatment of the home are also common positives. A few reviewers specifically appreciated not being upsold into more expensive products than needed.
Higher review counts usually give you a more reliable picture of how a company performs across different jobs and crews. In this set, businesses like Insulation Extract and Northern Suburbs Insulation have enough feedback to show repeat patterns around communication, workmanship and cleanup. Listings with one to a dozen reviews may still be excellent, but you have less evidence and should ask more direct questions about recent cavity wall jobs.
Ask whether they have recent experience with your wall type and whether the quoted product is suited to retrofit or new-build use, since the reviews show different systems being used across cavity, roof and spray-foam jobs. It is also worth confirming how they protect the home, what cleanup is included and how they handle any follow-up issues, because those themes matter a lot in the feedback here. If your property has access challenges or existing ceiling problems, ask how they plan around that too.
Estimate cavity wall insulation cost in Perth
Supply-and-install midpoints for blowing or pumping insulation into an existing wall cavity in Australia. Rates cover the fill and patching the drill holes in the mortar. A second storey, a tight side, and making good a rendered wall are extra. Ceiling and underfloor insulation are a different job.
Set to 0 to exclude.
Estimates are indicative only. For an accurate price, get free quotes from local tradies above.
General information
Cavity Wall Insulation in Perth
Expert Solutions for Your Home
When it comes to keeping your home comfortable, cavity wall insulation is a game changer. In Perth, we connect you with local professionals who specialise in wall cavity insulation, ensuring your home remains energy-efficient and cosy year-round.
Our network of experienced tradespeople is ready to provide comprehensive services, including blow in wall insulation and retrofit wall insulation, tailored to your specific needs. Whether you are looking to improve your existing insulation or need a complete installation, we have you covered.
- Affordable wall insulation installation options
- Expert advice on wall insulation cost
- High-quality materials for brick cavity wall insulation
- Fast and reliable service from local tradespeople
Don’t let your home suffer from heat loss. With our help, you can find the right solutions for pumping in wall insulation or blown insulation systems that fit your budget and requirements.
Why Choose Cavity Wall Insulation?
Cavity wall insulation can significantly enhance your home's thermal performance. By reducing heat transfer, it helps maintain a comfortable indoor environment, which can lead to lower energy bills. Our experts ensure proper installation to maximise these benefits.
What shapes your cavity wall insulation quote
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Wall
Brick veneer versus double brick.
Frequently asked questions
Most brick veneer and double brick homes have a cavity that can be filled, while solid brick homes do not. An installer will assess the cavity to ensure it is clear before starting the work.
In Australia, the most effective wall insulation materials include expanded polystyrene, mineral wool, and polyurethane foam, chosen based on your specific insulation needs.
If your house feels cold even with cavity wall insulation, it may be due to poor installation, insufficient insulation, or air leaks elsewhere within the home.
Yes, brick veneer homes have a cavity behind the outer brick layer. Installers can blow or pump insulation into this cavity through small mortar holes, which are patched after the job.
The R-value for brick veneer walls generally falls between 1.0 to 1.5, depending on the thickness and type of insulation used.
Investing in cavity wall insulation is beneficial as it reduces heat transfer, helping your home maintain its temperature with less energy for heating and cooling. The installation process includes ensuring the cavity is clear and patching mortar holes afterwards.
Some potential downsides include moisture problems if not installed correctly and the necessity of professional installation to ensure effectiveness.
Yes, even a 50 mm cavity can be insulated using blown mineral wool or beads through drilled mortar holes, provided the installer verifies that the gap is clear.
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