Extension Builders in Perth
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AI-assisted job brief
Extension Builders · Perth
70+ vetted professionals for Extension Builders in our network available to quote.
Local insights
We mapped the market so you don't have to
We fetched extension builders 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.
8
Suppliers in scope
4.9
Avg. Google rating
373
Reviews analysed
At a glance
Perth Extension Builders suppliers
Compare local extension builders 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.
Next Level Extensions
Google: 5.0 / 5 · 29 reviews · 18.2 km from search centre
AI-assisted analysis of public reviews:
Reviewers consistently praise clear communication, upfront cost guidance and a well-managed process while families stayed living at home. The finished extensions are described as high quality and well integrated with the original house, with projects reportedly staying on schedule.
WA Home Extensions
Google: 5.0 / 5 · 3 reviews · 0.0 km from search centre
AI-assisted analysis of public reviews:
The small review sample is very positive, highlighting organised starts, punctuality and tidy worksites during live-in builds. Reviewers also mention strong workmanship, good listening and projects finishing as promised without surprises.
Amerex Renovations
Google: 5.0 / 5 · 44 reviews · 6.6 km from search centre
AI-assisted analysis of public reviews:
Amerex is repeatedly praised for strong communication, capable project management and professional trades, especially on complex or staged renovations. Reviewers say the quality is high, issues are solved quickly and live-in projects felt smoother than expected.
MP Homes
Google: 5.0 / 5 · 41 reviews · 0.0 km from search centre
AI-assisted analysis of public reviews:
The supplied reviews focus on bathroom renovations rather than full extensions, and they praise punctuality, courteous service and neat workmanship. Feedback is strong on speed, detail and finish quality, but it is thinner for extension-specific jobs.
Addstyle Master Builders
Google: 4.7 / 5 · 61 reviews · 10.7 km from search centre
AI-assisted analysis of public reviews:
Reviewers often mention dependable supervisors, clear updates and respectful trades who work well around occupied homes. The overall theme is strong finish quality with a company that appears willing to sort out issues when something falls short.
Designer Home Extensions
Google: 4.8 / 5 · 10 reviews · 6.2 km from search centre
AI-assisted analysis of public reviews:
These reviews lean more toward design and approvals support than the build itself, with repeated praise for prompt responses and practical ideas. Clients value help with council processes, drawings and thoughtful design changes, though the review volume is modest.
Green-Shore Builders Perth
Google: 4.9 / 5 · 47 reviews · 10.3 km from search centre
AI-assisted analysis of public reviews:
Green-Shore reviewers repeatedly call out strong communication, on-time delivery and quality workmanship with close attention to detail. They also describe the team as professional and easy to have around during major renovations and second-storey additions.
Nexus Homes Group
Google: 5.0 / 5 · 138 reviews · 18.8 km from search centre
AI-assisted analysis of public reviews:
Nexus stands out in these reviews for modular second-storey additions that minimise disruption and move quickly. Reviewers repeatedly mention honest communication, reliable supervisors and projects finishing on time or ahead of schedule.
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 extension builders look fairly competitive at the top end, with most feedback centring on communication, supervision quality, workmanship and how well teams manage live-in renovations. A strong recurring theme is builders helping families remain in the home during the project, with reviewers appreciating tidy sites, staged works and respectful trades. Several businesses are specifically praised for being upfront about costs, timelines and design trade-offs, which seems to matter a lot in this niche. Quality and attention to detail are mentioned again and again across the stronger-reviewed companies, especially for second-storey additions and larger renovations. Negative patterns are not obvious in the supplied excerpts, so this dataset reads more positive than mixed overall. There are still differences in review depth: some firms have dozens or even over a hundred ratings, while others have only a handful, so confidence is naturally higher with the more established review profiles. Also worth noting, a couple of listings are praised more for design or bathroom renovation work than extension-only feedback.
AI review notes
What public reviews mention in Perth
No review notes for suppliers in Perth.
Local questions in Perth
Based on the supplied reviews, Next Level Extensions, Amerex Renovations, Addstyle Master Builders, Green-Shore Builders Perth and Nexus Homes Group all get specific praise for working around occupied homes. Reviewers mention staged works, tidy sites, regular updates and low disruption. WA Home Extensions also reads well here, but it has a much smaller review base.
Communication is a clear strength for Next Level Extensions, Amerex Renovations, Addstyle Master Builders, Green-Shore Builders Perth and Nexus Homes Group in these reviews. People mention daily or weekly updates, quick responses to questions and supervisors who stayed available throughout. Designer Home Extensions also stands out on prompt design-phase communication and council liaison rather than build delivery itself.
Yes — WA Home Extensions, Amerex Renovations, Green-Shore Builders Perth and Nexus Homes Group all have review excerpts referring to second-storey or upper-level additions. Nexus is the most clearly associated with modular second-storey work and low disruption, while Amerex and Green-Shore are praised for broader renovation-plus-addition projects. WA Home Extensions also has positive second-storey feedback, but from only a few reviews.
The most common praise points are workmanship, attention to detail, clear communication and reliable project supervision. Many reviewers also appreciate jobs finishing on time, sticking close to budget and keeping the home livable during works. Respectful trades and clean worksites show up repeatedly as well.
A small review set can still be encouraging, but it gives less evidence across different project types and time periods. In this group, WA Home Extensions and Designer Home Extensions have positive signals, yet the case is naturally thinner than for Amerex, Addstyle, Green-Shore or Nexus, which have much broader review volume. Bigger review counts usually give you more confidence that the praise is consistent rather than a short-run sample.
Next Level Extensions gets praise for cost-efficient design suggestions early on, and Designer Home Extensions is repeatedly praised for turning client ideas into workable drawings and handling approvals. WA Home Extensions and Addstyle also have reviews mentioning thoughtful suggestions and detail-focused planning. Nexus reviewers likewise mention ideas that improved the home’s function, especially for second-storey additions.
Ask who your day-to-day supervisor will be, how often you will get updates and whether you can stay in the home during the works if that matters to you. It is also worth asking how they handle variations, site cleanliness, staging and any defects or minor issues after handover. Those are the areas reviewers kept highlighting when they were happiest with the process.
Estimate house extension cost in Perth
Build midpoints for one house extension in Australia. Rates cover a typical design-and-construct job on a flat site. Council fees, a new kitchen, and major structural steel are usually extra unless they are part of the second-storey option.
Estimates are indicative only. For an accurate price, get free quotes from local tradies above.
General information
Home Extension Builders in Perth
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Benefits of Choosing Supertrades
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What shapes your house extension quote
1 / 3
Type
Ground-floor room versus a living extension or a second storey.
Frequently asked questions
Determining whether to build or extend depends on your specific situation. In many cases, extending can be more economical than starting from scratch.
The cheapest way to extend your house often involves simple renovations or using cost-effective materials. Discuss your options with local builders to find the best solution.
On average, the cost of a house extension in Australia varies widely, but you can expect to budget anywhere from $1,500 to $3,000 per square metre.
Building a house for $300,000 is challenging but not impossible, especially if you consider smaller designs or regional areas.
Yes, $400,000 can be sufficient to build a house in Australia, particularly if you focus on cost-effective designs and materials.
The cost-effectiveness of building versus buying depends on the market and your specific needs. Often, buying can be cheaper in a stable market.
The most affordable way to build a house typically involves choosing simpler designs, utilising lower-cost materials, and working with local builders.
Factors such as poor maintenance, undesirable locations, and lack of amenities can greatly decrease property value.
The cheapest type of house to build is usually a simple, single-storey design with minimal customisation and efficient use of space.
Generally, extending outwards can be less expensive than building upwards, especially in areas where land is limited.
It is possible to do an extension for $50,000, but this will depend on the scope of the project and the materials used.
A 3-metre extension can provide significant value, enhancing your living space and potentially increasing your property’s market value.
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