How to Choose the Right Builder in Canberra: 10 Essential Questions to Ask

Choosing the right builder is the single most important decision you'll make in your renovation or build. The wrong choice can cost you tens of thousands of dollars, months of delays, and enormous personal stress. The right choice transforms the experience entirely - even when inevitable surprises arise, a skilled and communicative builder navigates them as a partner, not an adversary. With construction costs continuing to climb in 2026 and the NCC 2025 transition now in effect, choosing well matters more than ever.

Having worked as a licensed builder in Canberra for 19 years, I know exactly what separates the builders who deliver outstanding results from those who don't. This guide gives you the 10 questions I would ask any builder - including me - before signing a contract.

Before You Start: The Right Mindset for Selecting a Builder

Selecting a builder is not purely a price exercise. The cheapest quote is often the most expensive outcome when you factor in variations, delays, and defects. A builder who communicates clearly, manages subcontractors professionally, and stands behind their work will deliver more value than one who underbids and disappears when problems arise.

Interview at least three builders. Not just for price comparison - for cultural fit. You will be spending months working alongside this person. The relationship matters as much as the quote. For context on what projects cost, read our guides on home renovation costs in Canberra and home extension costs before approaching builders.

Question 1: Are You Licensed in the ACT?

In the ACT, any person or company carrying out residential building work for payment must hold a valid builder's licence issued under the ACT Building Act 2004. This is non-negotiable.

Verify the licence yourself on the Access Canberra website - do not simply take a builder's word for it. Search by individual name and company name. Check that:

• The licence is current (not suspended or cancelled)
• The licence class covers the scope of your work (residential building work requires a Builder - Residential licence)
• The name on the licence matches the person or company quoting

Question 2: Do You Have Adequate Insurance?

Three types of insurance are essential:

Uninsured or underinsured builders expose you to catastrophic financial risk. If a worker is injured on your site without workers compensation in place, you could be personally liable. If a builder becomes insolvent halfway through your project without home warranty insurance, you have no protection. Request current certificates for all three policies before paying any deposit.

Question 3: Can You Show Me Recent, Relevant Work?

Photos on a website tell you very little. The quality of joinery, the straightness of tiling lines, the finish of paintwork - these things only reveal themselves in person. A builder who is proud of their work will welcome a site visit to a recently completed project. One who deflects this request may have reason to.

Look for projects similar to yours in scope. A builder who specialises in new builds may not have the delicate touch required for a heritage home renovation. A bathroom renovation specialist may not have the project management capacity for a whole-home renovation. Relevant experience matters more than general volume of work.

Question 4: What Do Your Previous Clients Say?

References are the most reliable signal of builder quality available to you. When you call references, ask these specific questions:

• Was the project delivered on time and on budget?
• How did the builder handle unexpected issues or surprises?
• How was communication throughout the project?
• Were there any defects at handover, and were they resolved promptly?
• Would you use this builder again for another project?

Question 5: How Do You Handle Communication?

Communication breakdowns are the number one cause of homeowner dissatisfaction in renovation projects - not cost or quality. A builder who goes silent for days, who doesn't answer calls, or who gives vague progress updates is a builder who will leave you anxious and frustrated.

What good looks like:

• Weekly written progress updates as a minimum
• Same-day response to urgent queries (24 hours for non-urgent)
• Clear point of contact - is the director on site, or is it a site supervisor?
• A defined process for raising concerns or requesting information
• Written confirmation of all decisions and variations

Question 6: What's Included in Your Quote?

A quote that says "kitchen renovation: $45,000" is not a quote - it is a number. A proper quote breaks down every trade and supply item: demolition, structural work, electrical, plumbing, tiling, cabinetry, appliances, painting, and site establishment. This level of detail serves two purposes:

1. It enables you to compare quotes on an apples-to-apples basis
2. It gives you protection if disputes arise over what was included

Pay particular attention to Provisional Cost (PC) sums - line items where an estimated allowance is used because selections haven't been finalised. PC sums are not fixed prices. If your actual selections cost more than the PC sum allowance, you pay the difference. Always ask which items are PC sums and whether the allowances are realistic.

Question 7: What Is Your Contract Process?

In the ACT, a written building contract is legally required for all residential work over $10,000. The contract must include:

• Full project scope and specifications
• Total contract price
• Start date and expected completion date
• Progress payment schedule tied to construction milestones
• Variations process requiring written approval before work proceeds
• Builder's licence number and insurance details
• Defect liability period (minimum 12 months)

Fixed-price contracts provide budget certainty but require a fully resolved scope upfront. Cost-plus contracts can be appropriate for complex renovations where the scope isn't fully defined at the outset, but require rigorous cost tracking and reporting. Understand which contract type you're signing and what your exposure is either way.

Question 8: How Do You Handle Unexpected Issues?

Every renovation on an existing building produces surprises. The question is not whether a builder will encounter problems - it's how they handle them when they arise. A great builder will:

• Identify the issue immediately and stop work rather than build over it
• Contact the client and explain the situation clearly before proposing solutions
• Provide options at different price points where possible
• Submit a written variation request with full cost breakdown before proceeding
• Document the issue and the resolution for the record

A builder who talks about surprises as "just part of the job" without explaining their communication process is giving you a warning signal. Surprises handled poorly are the primary source of client-builder disputes.

Question 9: What Is Your Current Workload and Realistic Timeline?

An overcommitted builder is a risky builder. In Canberra's relatively small residential construction market, quality builders are in high demand - and some will take on more work than their team can manage properly, resulting in slow progress, poor supervision, and communication breakdowns. Always ask about their current workload and gauge whether they can give your project the proper attention it deserves. Neighbours and colleagues in your suburb are often your best informal reference source.

Ask specifically:

• How many simultaneous projects do they typically run?
• Will the director be on your site regularly, or will you be managed by a supervisor?
• What is the realistic start date - not the optimistic one?
• How is the project programme documented and shared with clients?

Question 10: Do You Specialise in My Type of Project?

Renovation and new construction require genuinely different skills, mindsets, and methods. Renovating an occupied home - especially a heritage property or an older Canberra character home - requires patience, precision, and experience with the surprises that old buildings hide. A builder whose background is purely in volume new housing may not have the specialised skills your project requires.

Conversely, if you're building a new custom home on a vacant block, a renovation specialist may not have the project management systems required for a larger-scale new build. Match the builder to the project type, not just the price. Read our guide on extensions vs. renovations to clarify which approach your project falls under.

Red Flags to Watch For

In addition to the answers to the 10 questions above, watch for these warning signs at any stage of the engagement:

Jeff's Perspective on the Builder-Client Relationship

"The best builder-client relationships are built on mutual respect and clear communication from day one. I tell every prospective client the same thing: ask me the hard questions. Verify my licence, call my references, visit my completed projects. A builder who welcomes this scrutiny is one who stands behind their work. The ones who deflect or rush you past these steps are telling you something important."

At Rentoule Projects, we're happy to share our licence details, insurance certificates, client references, and completed project addresses from day one of our conversation. We believe informed clients make better project partners - and better project partners lead to better outcomes for everyone.

Before beginning your builder search, make sure you have a clear sense of your project scope and budget. Our step-by-step renovation planning guide and our detailed cost guides for kitchen renovations and bathroom renovations will help you prepare for those first conversations.