Who this guide is for
- Homeowners about to commit to a trade contractor
- People who have been let down by a contractor before
- Anyone weighing two or three shortlisted tradespeople
- Owners hiring for a larger or higher-stakes job
Gather references that actually mean something
Ask for recent references for work similar to yours, not just the contractor's favourite jobs from years ago. A reference for a different type of project tells you less than one close to your own.
Be wary if a contractor cannot offer any recent, relevant references at all.
- Ask for recent, relevant references
- Favour jobs similar to yours
- Note if no references are offered
- Ask for more than one where possible
Ask past clients the right questions
Move past 'were you happy' to questions that reveal behaviour: did the work run to the agreed plan, how was communication, did costs change and why, and how were problems handled. Those answers matter more than a glowing one-liner.
Listen for hesitation as much as content — how someone answers can be telling.
- Ask if the job ran to the agreed plan
- Ask how communication and tidiness were
- Ask whether and why costs changed
- Ask how problems were handled
View real, completed work
Photos can be borrowed or flattering, so try to see actual finished work where you can, ideally jobs that have stood up over time. Seeing how work has weathered or worn tells you more than a fresh photo.
If a site visit is not possible, ask detailed questions about how the finished work has held up.
Read the patterns, not single comments
One lukewarm reference might be an outlier, but a pattern — repeated mentions of delays, surprises or poor communication — is a signal. Weigh the overall picture across several sources.
Treat a contractor who resists giving any references as a meaningful warning sign.
Combine references with credentials
References tell you about behaviour; for regulated work you also want to see relevant licensing and insurance. Ask to see these where the trade involves work that requires them.
Never treat a reference as a substitute for confirming the contractor is appropriately covered.
- Ask to see relevant licensing and insurance
- Treat references and credentials as separate checks
- Confirm cover for the specific work
- Keep notes on what you verified
Hiring checklist
- 1Ask for recent references relevant to your job
- 2Request more than one reference where possible
- 3Prepare questions about plan, cost and communication
- 4Ask how problems were handled, not just the result
- 5Try to view real, completed work
- 6Note how work has held up over time
- 7Look for patterns across several references
- 8Treat resistance to references as a warning
- 9Ask to see relevant licensing and insurance
- 10Keep notes on everything you verified
Common mistakes to avoid
- Accepting only old or unrelated references
- Asking only 'were you happy' and getting no real detail
- Trusting photos without seeing real finished work
- Reacting to a single comment instead of the overall pattern
- Treating references as a substitute for checking credentials
- Ignoring a contractor's reluctance to provide any references
When to involve a professional
- For regulated work, ask to see relevant licensing and insurance
- Confirm any trade touching structural, electrical or plumbing work is qualified
- Treat references as behaviour evidence, not proof of competence
- Keep your own record of what you checked and were told
- Remember licensing and insurance requirements vary by location and project
Frequently asked questions
Questions readers ask about this topic
How many references should I ask for?
Ask for more than one, ideally several recent jobs similar to yours, so you can read patterns rather than react to a single comment. A contractor who cannot provide any relevant recent references is worth questioning.
What should I ask a past client?
Go beyond whether they were happy: ask if the job ran to plan, how communication was, whether costs changed and why, and how problems were handled. How someone answers can be as telling as what they say.
Should I visit completed work?
Where you can, yes — seeing real finished work, especially jobs that have stood up over time, tells you more than photos. If a visit is not possible, ask detailed questions about how the work has held up.
Do references replace checking credentials?
No. References show behaviour, but for regulated work you should also ask to see relevant licensing and insurance. Treat them as separate checks, and remember requirements vary by location and project.
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