Homeowners tend to weight reviews and references heavily, partly because they are easy to access and partly because they feel like direct evidence. They are worth something, but knowing their limitations changes how you use them.
Start with what cannot be curated
Washington L&I publishes infraction history against registered contractors. Nobody can edit it, remove it, or pay to have it suppressed.
That makes it categorically more reliable than any review platform, and it should be the first thing you look at rather than the last. One old resolved item is context. A pattern of unresolved infractions is a decision.
Using reviews sensibly
Read the middling reviews rather than the extremes. Five-star reviews often say very little, and one-star reviews frequently describe a dispute with two sides. Three- and four-star reviews tend to be the most specific and the most honest.
Look for patterns rather than incidents. Any contractor with volume will have an unhappy customer somewhere. Repeated mentions of the same failing — poor communication, schedule slippage, unresolved punch lists — are meaningful in a way that a single bad experience is not.
Watch the timing. A cluster of glowing reviews within a short window, particularly following a run of poor ones, is a recognisable pattern.
Note how the contractor responds to criticism. A measured, specific reply that addresses the substance tells you more about how they handle problems than any five-star review does. Defensive or hostile responses tell you that too.
Making references useful
References are hand-picked, so no contractor supplies a customer who will criticise them. The trick is asking questions that produce useful answers anyway.
Ask about the process rather than the outcome. Everyone is pleased with the result or they would not be a reference. Ask what went wrong and how it was handled — every project has something, and the answer tells you how the contractor behaves under pressure.
Ask whether the final price matched the quote, and if not, why. Ask whether the schedule held. Ask whether they were reachable when there was a problem. Ask whether they came back for the punch list, and how long it took.
Ask the most useful question last: would you hire them again for something larger?
Ask for a recent local job
Request a reference from a job in your area completed within the last year, ideally of similar type. That constrains the selection considerably, and a contractor who cannot produce one is telling you something about either their recent volume or their recent results.
The order that works
Registration, bond and insurance first, because those are pass or fail. Infraction history second, because it is factual. Reviews third, read for patterns rather than sentiment. References last, with questions designed to surface process rather than confirm satisfaction.
Reversing that order is how homeowners end up reassured by testimonials about a contractor whose bond expired last month.