If your project is moving forward and you are now evaluating which commercial construction contractor should build it, there are 10 questions during the selection process you should be asking.
At J&D Contracting, we welcome every one of them. We hold current QBCC licences across building, plumbing, drainage, and gasfitting, a current electrical contractor licence, and ISO certifications across all three relevant standards. We’ve been operating continuously since 1981 and we can back every claim with documented evidence. Use this framework to hold us, and every other contractor you speak with, to exactly the same standard.
The question framework for choosing the right commercial construction contractor
A note on how to use this list: apply it to all shortlisted contractors simultaneously, not just your preferred option. The value of these questions comes from comparison. Some questions are near non-negotiable, particularly Questions 2 and 4. Any hesitation or vague response to those should end the conversation. Questions 5 through 10 allow for more nuanced evaluation and scoring between candidates.
Question 1: How long has your business been operating?
Longevity matters in commercial construction. A contractor who has been operating for 10, 20, or 30-plus years has navigated economic downturns, supply chain disruptions, material shortages, and the kinds of unexpected project challenges that sink inexperienced operators.
Experience is not just about technical knowledge. It is about having systems, supplier relationships, and qualified people in place to solve problems without derailing your project.
J&D Contracting’s answer: We have been operating since 1981. That is 45 years of continuous operation across Southeast Queensland, including Brisbane, the Sunshine Coast, Gold Coast, Ipswich, Toowoomba, and as far as Mt Isa. We have built through recessions, material shortages, and significant shifts in regulatory requirements, and we are still here because our systems and our people are strong enough to handle what comes up. Learn more about who we are.
Red flag: A contractor who has been operating for fewer than five years, or who cannot speak to specific periods of difficulty they navigated and what they learned from them. Recent rebranding after a business failure can also mask a poor track record.
Question 2: Are you licensed, and can you show me proof?
Licensing is not optional. In Queensland, any commercial building work requires a current licence issued by the Queensland Building and Construction Commission (QBCC). For projects involving electrical work, a separate electrical contractor licence is also required.
You can verify QBCC licence status independently at the QBCC website. Do not accept a verbal confirmation. Ask to see the licence certificate and cross-check it yourself before proceeding.
For projects in other Australian states, equivalent licensing bodies include the Building Commission (Victoria), NSW Fair Trading, and the Building and Energy Division (Western Australia). Always verify directly with the relevant authority.
J&D Contracting’s answer: We hold current QBCC licences for Builder Open (Licence 15388697), Plumbing and Drainage, and Gasfitting, all under the same licence number. Our Electrical Contractor Licence number is 91178. We are also a registered NDIS provider (4050154143). All of this information is publicly verifiable. We will provide current certificates on request and encourage you to check the QBCC register directly.
Red flag: Any contractor who cannot produce current, valid licence documentation on request, or whose licence status does not match what the register shows. This is a firm disqualifier.
Question 3: Do you hold ISO certifications?
ISO certifications are a strong indicator that a contractor has formal, documented management systems in place, not just verbal commitments to quality, safety, and environmental responsibility.
The three certifications most relevant to commercial construction are:
- ISO 9001: Quality management systems
- ISO 45001: Occupational health and safety management
- ISO 14001: Environmental management
ISO certification becomes more critical as project complexity and value increase. On a multi-million dollar commercial fitout or industrial build, it is essentially a baseline expectation. On a smaller renovation, it carries weight as a positive differentiator rather than a strict requirement.
J&D Contracting’s answer: We hold all three certifications. ISO 9001 governs how we manage quality across every project. ISO 45001 underpins our safety management system. ISO 14001 covers how we manage our environmental obligations on site. We can provide current certificates and explain how each system operates in day-to-day practice, not just on paper. Read more about how we earned our ISO certifications.
Red flag: A contractor who cannot provide current certification documents, or who struggles to explain how their certified systems translate into day-to-day site practice.
Question 4: What safety systems and processes do you have in place?
Safety performance on a commercial construction site is a direct reflection of how a contractor manages everything else. A contractor who cuts corners on safety cuts corners elsewhere.
Ask specifically about their Safe Work Method Statements (SWMS), site induction processes, incident reporting procedures, and how safety is managed when subcontractors are on site. Ask for their Total Recordable Incident Frequency Rate (TRIFR) if they can provide it.
A contractor with ISO 45001 certification has a formal safety management system. The question is how that system operates in practice, so probe beyond the paperwork.
J&D Contracting’s answer: Safety is one of our core values, and it is non-negotiable across every project regardless of scale. We operate under a formal ISO 45001-certified safety management system. Every site has documented SWMS in place, structured site inductions, and clear incident reporting procedures. Subcontractors working on our sites are required to comply with our safety requirements, not just their own. We are happy to discuss our safety performance data with prospective clients.
Red flag: Vague responses about safety culture with no documented procedures to back it up, or a reluctance to share safety performance data.
Question 5: Do you have relevant experience with projects like mine?
Sector-specific and scale-relevant experience matters more than raw years in business. A contractor with extensive experience in residential construction may lack the compliance knowledge required for industrial food manufacturing facilities. A contractor who has delivered smaller fit outs may not have the procurement relationships or team structure to manage a project of significantly greater complexity. Do not accept generalisations, ask for specifics.
A useful set of follow-up probes:
- “Can you name the client and project? May I contact them as a reference?”
- “Was the project delivered under a fixed-price contract, cost-plus, or another arrangement?”
- “Were there variations on that project, and how were they resolved?”
- “What was the final cost relative to the original contract value?”
These questions reveal not just whether a contractor has done similar work, but how they perform under the conditions that typically create problems.
J&D Contracting’s answer: Our project portfolio spans government school refurbishments, commercial amenities buildings, NDIS home modifications, and trade services across residential and commercial properties. You can view our recent projects, including refurbishments and NDIS work here. We can provide contactable referees for comparable projects and are happy to discuss how those projects were delivered.
Red flag: A contractor who references project experience but cannot name clients or provide referees. Reluctance to share references suggests the track record may not hold up to scrutiny.
Question 6: Can I see recent reviews and case studies?
Online reviews and documented case studies offer an unfiltered view of how a contractor actually performs. While case studies are produced by the contractor, Google reviews come directly from clients and are difficult to manipulate in aggregate.
Look for patterns across multiple reviews, not just the overall rating. Are there consistent comments about communication, transparency, or delivery? Are responses to negative reviews professional and constructive?
Ask to see case studies that are genuinely comparable to your project in scope, sector, and scale. A case study from a project half the size of yours may not be relevant evidence.
Red flag: Very few reviews, a pattern of complaints about communication or budget management, or a portfolio of case studies that bears no resemblance to the type of project you are undertaking.
Question 7: How do you manage subcontractors?
Most commercial construction projects involve subcontractors for specialist trades such as electrical, plumbing, mechanical services, and fire protection. The quality of those subcontractors, and how the head contractor manages them, directly affects your project outcomes.
Ask whether the contractor works with a consistent panel of subcontractors or engages new trades on a project-by-project basis. Long-standing relationships with trusted subcontractor partners generally produce more reliable outcomes than a lowest-quote approach for each project.
A less obvious but equally important question concerns payment practices. A head contractor who is slow to pay subcontractors creates site culture problems, risks key tradespeople walking off mid-project, and is often an early indicator of financial stress. Ask directly: “How do you structure payment terms with your subcontractors, and do you use a project bank account or any form of payment protection mechanism?”
For larger commercial projects in Queensland, this question is particularly relevant given the protections available under the Building Industry Fairness Act.
J&D Contracting’s answer: We work with a trusted network of over 50 subcontractors. These are long-standing relationships built on consistent performance and mutual respect.
Red flag: A contractor who cannot name their regular subcontractor relationships, or who is evasive about payment practices with subcontractors.
Question 8: What does your communication and reporting process look like?
Poor communication is one of the most frequently cited causes of commercial construction project failures. The issue is rarely a lack of goodwill. It is the absence of structured, documented processes that keep clients informed regardless of who is on site on any given day.
Strong communication on a commercial construction project typically includes all of the following:
- Weekly written site reports with photographs and progress against programme
- A documented variation approval process, where written sign-off is obtained before additional work proceeds, not after
- A named project manager as your single point of contact throughout the project
- A clear process for how Requests for Information (RFIs) are tracked and resolved
- Defined escalation protocols when issues arise
When a contractor describes their communication approach, you now have a benchmark to compare responses against. Vague commitments to “keeping you in the loop” are meaningfully different from describing a structured, documented process.
J&D Contracting’s answer: Every project has a named project manager who is your single point of contact from start to finish. Client feedback consistently highlights proactive communication as a standout: one reviewer noted their project manager responded quickly to all enquiries and kept them informed throughout. Another said the team let them know every step of the way what was happening. We have documented variation and approval processes in place, and we do not proceed with additional work without written sign-off. Our approach to communication is structured, not reactive. You can read our Google reviews directly, and browse our case studies here.
Red flag: A contractor who cannot describe a specific reporting structure, or who suggests that communication happens informally on an as-needed basis. If they do not have a process before the project starts, the communication will be reactive rather than proactive throughout.
Question 9: How do you demonstrate financial stability?
A commercial construction contractor who runs into financial difficulty mid-project creates one of the most costly and disruptive situations a building owner or project manager can face. It is worth understanding two distinct aspects of financial risk: a contractor’s financial health, and their insurance coverage.
On financial stability specifically, QBCC-licensed contractors are subject to Minimum Financial Requirements (MFR) reporting obligations. You can ask whether a contractor is compliant with these requirements, and this information is also available through the QBCC register. A contractor who is in good standing with their MFR obligations provides a meaningful level of assurance about their financial position.
Payment practices with subcontractors are a useful leading indicator of financial health. Contractors who are consistently late paying subcontractors are often experiencing cash flow pressure. Ask whether the contractor has been involved in Security of Payment Act disputes, as a pattern of payment disputes is a warning sign worth investigating.
On insurance, verify that the contractor holds current public liability insurance, contract works insurance, and workers’ compensation cover. Ask for certificates of currency and confirm the coverage levels are appropriate for your project value.
J&D Contracting’s answer: We are fully compliant with QBCC Minimum Financial Requirements and our licence status is verifiable through the QBCC register. We hold current public liability, contract works, and workers’ compensation insurance and can provide certificates of currency on request. With 45 years of continuous operation and a team of 70, we are a stable, established business. We are happy to answer any questions about our financial standing directly.
Red flag: A contractor who is unable to confirm QBCC MFR compliance, or who cannot produce current insurance certificates on request. Also be cautious of contractors who are dismissive of questions about subcontractor payment practices.
Question 10: What contract type are you proposing, and why?
The structure of your contract determines how risk is allocated between you and your contractor, and many clients do not think to ask this question until it is too late.
The three most common contract types in commercial construction are:
- Fixed-price lump sum: The contractor carries the risk of delivering the agreed scope within the agreed price. Variations are documented separately. This gives clients cost certainty but requires a well-defined scope upfront.
- Cost-plus: The client pays actual costs plus an agreed fee. This provides flexibility but transfers cost risk to the client. Appropriate for highly complex or uncertain scopes.
- Design and construct: The contractor takes responsibility for both design and delivery. This can reduce interface risk but requires careful attention to the scope of design obligations and performance standards.
A contractor who can explain clearly which contract type they are proposing and why it suits your specific project, is demonstrating commercial maturity. One who defaults to a standard arrangement without discussing the implications for your project is not.
J&D Contracting’s answer: We take the time to understand your project before recommending a contract structure. The right arrangement depends on how well-defined your scope is, the risk profile of the work, and what level of cost certainty you need. We will explain the implications of the proposed contract type for your specific situation, including how variations are managed and what protections are in place for both parties. We do not default to a standard arrangement without having that conversation first.
Red flag: A contractor who cannot explain the contract type they are proposing, or who seems unfamiliar with the risk implications for either party.
Evaluating what you hear
Once you have asked these questions across your shortlisted contractors, the following table can help you compare responses objectively.
|
Question |
Strong Answer Looks Like |
Weak Answer Looks Like |
|
Longevity |
10+ years, specific examples of challenges navigated |
Vague, or history obscured by rebranding |
|
Licensing |
Current QBCC licence provided, verifiable |
Verbal confirmation only, no documentation |
|
ISO Certifications |
Certificates produced, system explained in practice |
No certification, or cannot explain application |
|
Safety Systems |
Documented SWMS, TRIFR data, ISO 45001 |
Vague safety culture talk, no documentation |
|
Relevant Experience |
Named projects, contactable referees, variation details |
Generalised claims, no referees offered |
|
Reviews and Case Studies |
Strong Google review pattern, comparable case studies |
Few reviews, no comparable projects |
|
Subcontractor Management |
Consistent panel, clear payment terms discussed |
New trades for every project, evasive on payment |
|
Communication Processes |
Weekly reports, named PM, documented variation process |
Informal, reactive communication described |
|
Financial Stability |
QBCC MFR compliant, current insurance certificates |
Cannot confirm compliance, evasive on insurance |
|
Contract Type |
Type proposed with clear rationale for your project |
Defaults to standard without discussion |
Work with a contractor who has nothing to hide
Selecting the right commercial construction contractor is one of the most consequential decisions your project will involve. The questions above are designed to give you a structured, objective basis for making that decision with confidence.
J&D Contracting holds current QBCC and electrical licences, ISO 9001, ISO 45001, and ISO 14001 certifications, and more than three decades of commercial construction experience across Queensland. We are proud of our track record and encourage every prospective client to apply this framework rigorously, starting with us.
If you would like to discuss your project or put these questions to our team directly, contact J&D Contracting today for an obligation-free consultation.
