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What's the job?
Can't find your job? Describe your job insteadDoes the work involve structural elements (load-bearing walls, floor joists, foundations or similar)?
Estimated range
$583 – $2,679
Guide pricing only. Final quotes vary by scope, access, materials, and site conditions.
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Average rating of Builders servicing Diamond Bay
5.0(120)Monument Projects - Apartment & Home Renovation
Surry Hills, NSW“⭐️⭐️⭐️⭐️⭐️ A huge thank you to Monument Projects for creating our grooming shop! The result is high-end, bright, and bea...”
5.0(165)Tier One Traffic
Sydney, NSW“We use tier one traffic for all our traffic control needs, from producing traffic management plans, to council applicati...”
5.0(107)Mr and Mrs Elias - Apartment Renovations
Sydney, NSW“Mr and Mrs Elias Apartment Renovations did an incredible job on our apartment. They were professional, reliable, and eas...”
5.0(76)Sydney Harbour Marine
Diamond Bay, NSW“The company is extremely responsive and professionally undertake difficult marine salvage operations. For any work insi...”
4.9(77)Inhaus Living
Kensington, NSW“Inhause Living recently completed our kitchen renovation and part bathroom update First point of call was John Haklani w...”
5.0(31)Platinum Corp Construction
Pyrmont, NSW“I am happy provide this review for Platinum Construction Corp, having completed three distinct projects with their team...”
4.8(44)PAMMENT PROJECTS
Rose Bay, NSW“We recently had our new home built in the Eastern Suburbs and couldn't be happier with the outcome. From start to finish...”
5.0(44)Flomar Civil
Chippendale, NSW“We engaged Flomar Civil as the ASP1 contractor on our project and were very impressed with their performance. The team w...”
5.0(40)Aoun Constructions - Sewer Services Sydney
Surry Hills, NSW“I would highly recommend Khare and his team! He carried out minor works for at one of my projects and the entire process...”
4.8(25)JMJ Homes
Bondi Beach, NSW“Raymond is truly exceptional. He’s incredibly knowledgeable, generous with his time, and genuinely passionate about help...”
5.0(36)Trade Industries Group - Home & Apartment Renovations in Sydney
Sydney, NSW“Awesome skilled team, highly recommend. Trent is awesome, honest and extremely hands on”
5.0(36)AB House
Zetland, NSW“I recently had AB House work on our building's common areas, and I must say, they exceeded my expectations. The paint jo...”
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What to expect when hiring builders in Diamond Bay
From what the job should cost to how to compare quotes — here's what's worth knowing before you book Diamond Bay builders.
The cost
What home building costs in Diamond Bay
Home Building in Diamond Bay usually runs $4,813 – $27,055 for small structure build, and $179,735 – $456,825 for extension build. What you'll pay comes down to the size of the job, the condition of what's being worked on, and the finish you choose. Get a few quotes to see your exact number — it's free.
Small Structure Build
$4,813 – $27,055
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Extension Build
$179,735 – $456,825
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Structural Alteration
$30,465 – $148,825
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The shortlist
What to look for in Diamond Bay builders
A good builder isn't just the cheapest — it's the one whose track record, credentials and quote you can stand behind. Here's what's worth weighing before you shortlist.
Recent, genuine reviews
Read the latest ones, not just the count
Experience near you
Jobs like yours, done locally
Credentials shared
Licence, insurance and business details
A clear written quote
Itemised, so you can compare like-for-like
The detail
What a good home building quote includes
A good quote spells out how the job is priced and what's covered — labour, materials, prep and clean-up — so you're comparing like for like. Check what each builder's quote covers before you choose.
Worth knowing: getting two or three quotes is the simplest way to land a fair price — and it costs you nothing.
Itemised scope. Every stage listed, site prep to finishing, not a lump sum.
Material specs. Exact brand, grade and quantity, not 'good quality'.
Exclusions. Driveways, landscaping, fencing and site costs are classic traps.
Prime cost and provisional sums. Allowances for choices and site work not priced yet.
Licence and insurance. ABN, licence, public liability and home warranty cover.
Permits. Who gets permits, soil tests and compliance certificates.
Licensing & Compliance
Licensed tradeBuilder licensing in New South Wales
Builder work is regulated in New South Wales. Requirements vary by state. Here's what to know before hiring.
What to look for
- Valid state builder/contractor licence number displayed on quotes and advertising
- ABN with active GST registration
- Public liability insurance ($5M–$20M typical for residential builders)
- Domestic Building Insurance (VIC mandatory for contracts over $16,000)
- HIA or Master Builders Australia membership
Licence details
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