TL;DR: Demolition is high‑risk work. The safest contractors are the ones who can answer clear, pointed questions about planning, competence and control. Asking the right questions before you appoint a contractor helps you avoid poor planning, safety failures and unnecessary risk.
Appointing a demolition contractor is one of the most important decisions on any project. Demolition involves careful planning, hazard management, environmental controls and clear communication, but not all contractors present themselves in the same way. Some sound experienced but struggle to explain how they manage risk; others are specific and transparent. The right questions help you tell the difference.
Why these questions matter
Under CDM 2015, clients must appoint contractors with the right skills, knowledge, experience and organisational capability. Good demolition contractors demonstrate this in practice: they can explain how they plan the work, manage risk and control the site, rather than hiding behind general statements.
The questions to ask demolition contractors before procuring one
1. Have you completed similar demolition projects before?
A good contractor will give specific examples of similar work and explain how they approached it.
2. How do you approach planning before work begins?
Demolition must be carefully planned and carried out by competent practitioners, with work only awarded after a client has received advice from a competent demolition engineer according to the HSE.
They should be able to describe their planning process: surveys, method statements, risk assessments, sequencing, and coordination with duty holders.
The Institute of Demolition Engineers will be sharing their perspective on this subject at the NFDC Talks.
3. How do you manage hazards on site?
Ask how they deal with asbestos, unstable structures, buried services, dust, noise and moving plant, and how they communicate risks to the team.
4. How do you keep workers and others safe during the job?
Look for clear systems: briefings, exclusion zones, supervision and strong site communication.
5. How do you deal with dust, noise, and waste?
Competent contractors plan to reduce disruption, manage waste responsibly and keep the site under control as work progresses.
6. How do you handle changes once work has started?
Demolition rarely goes exactly to plan. Not all buildings have a clear “golden thread” of information, so contractors should explain how they use surveys, risk assessments and method statements to adapt safely when structures behave differently or hidden hazards appear. We will be discussing this in more detail at NFDC Talks.
7. Can you provide references from similar projects?
Good contractors are happy to share references that show their communication, safety standards and performance. NFDC’s “Find a Contractor” service brings together accredited demolition companies that have been through a structured assessment process.
What good and bad answers sound like
Good answers are clear, practical and specific. Competent contractors can explain how they plan work, manage risks, communicate on site and adapt when things change. Vague, rushed or purely price‑focused responses are warning signs, especially if the contractor avoids specifics, cannot explain their process, dismisses safety concerns or is unwilling to provide evidence of past work.
Why this matters for clients and principal contractors
Choosing the right demolition contractor protects your team, project, reputation and budget. It also helps clients meet their duties under CDM 2015 to appoint competent contractors. The questions above are a simple way to make a more informed decision.
Conclusion
The questions you ask before hiring a demolition contractor reveal a lot about the company behind the quote. Clear, evidence‑based answers suggest a contractor who is genuinely capable; vague or evasive responses suggest you should look elsewhere.
For clients seeking additional guidance, NFDC Talks 2026 will explore what to consider before procuring a demolition contractor and what your responsibilities are during the project – check out the dates and sign up.
Related articles
Are we commissioning asbestos surveys early enough to influence demolition planning?
Timing plays a critical role in how effectively survey information can reduce uncertainty around programme, cost and risk.
Retrofit first, but not always: What we’re learning from MHCLG’s March research
Retrofit is widely supported for sustainability and heritage, but in practice, many developers proceed with demolition and redevelopment due to cost certainty, site limitations, and delivery challenges. Explore these industry conversations in more detail at NFDC Talk events taking place across the country.
Originally published Aug 05, 2026 2:51:31 PM, updated August 5 2026.
