How to Choose a Renovation Builder on the Northern Beaches

Choosing a renovation builder on the Northern Beaches comes down to a handful of non-negotiables: a current NSW licence, the right insurance including HBCF, a fixed-price written contract with a completion date, genuine local references, and clarity on who actually does the work. Get those right and you avoid almost every renovation horror story. Here's exactly what to check, and the red flags that should make you walk away.

1. Check the NSW builder licence

In NSW, any residential building work over $5,000 must be done by a licensed builder. Before you go any further, search the builder's name or licence number on the NSW Fair Trading public register. It tells you whether the licence is current, what class of work it covers, and whether there's any disciplinary history. This takes two minutes and rules out the riskiest operators immediately.

2. Confirm insurance and HBCF cover

A legitimate builder carries public liability insurance, and for residential work over $20,000 they must take out Home Building Compensation (HBCF) insurance — which protects you if the builder can't finish or fix defective work. They have to provide the HBCF certificate before you pay a deposit or work starts. Ask to see both certificates in writing. If a builder is cagey about insurance, that tells you everything.

3. Insist on a fixed-price written contract

The single biggest protection you have is a fixed-price contract that spells out the scope, the finishes, the total price and a completion date. Avoid vague "estimates" and open-ended hourly arrangements where the final bill is anyone's guess. A fixed-price contract puts the risk of overruns on the builder, not you, and makes rival quotes genuinely comparable. It's the single clearest signal that a builder plans properly.

4. Ask for references and read the reviews

A builder who does good work will happily point you to recent local projects and past clients. Look for reviews that mention the things that actually matter — sticking to budget, finishing on time, communication, and how they handled problems. Better still, ask to see completed work in person. Have a look at recent renovations we've delivered to see the standard you should expect.

5. Understand who actually does the work

Many builders are really project managers who subcontract every trade out. That can work, but it means the person you signed with doesn't control the plumber's, tiler's or cabinetmaker's schedule or quality — and gaps between subbies are where timelines slip. Ask directly: are the trades in-house or subcontracted, and who is the single point of contact on site?

• In-house trades — one company accountable for quality and timing, no waiting on outside subbies, one foreman running the site.
• Subcontracted trades — can be fine, but coordination and quality depend entirely on how well the builder manages people they don't employ.
• One foreman per site — you always know who to call, and nobody can pass the buck.

6. Know the deposit limits and red flags

For residential work over $20,000 in NSW, the maximum deposit a builder can legally ask for is 10 per cent of the contract price. Anyone pushing for a big cash deposit, or progress payments well ahead of the work being done, is a warning sign. Here are the red flags worth walking away from:

• No licence or insurance they'll put in writing.
• A verbal or vague quote with no itemised scope or fixed price.
• A large upfront cash deposit above the legal 10 per cent.
• No completion date — or resistance to committing to one.
• Pressure to sign today or a price that seems too good to be true.

The Reno Build way

We've renovated across the Northern Beaches since 2009 — more than 5,000 kitchens and bathrooms — and we built the business around exactly these checks. Every job is fixed-price with a signed completion date under our 21-day guarantee, and every trade is on our own roster, so one accountable team owns the whole project. You can read more about how we work or compare our two fixed-price renovation packages.

Frequently asked questions