How to Check Contractor References the Right Way (Most Homeowners Do It Wrong)

Most homeowners ask for references and then ask the wrong questions. Realm Advisors have a specific reference-checking framework that uncovers the information contractors do not volunteer. Here is how it works.

Realm

June 2, 2026

Why Most Homeowners Get Reference Checks Wrong

Contractor references and past work verification come up in roughly 6 in 10 Realm advisory calls. The near-universal problem is not that homeowners skip references — it is that they ask questions that produce useless answers.

"Were you happy with the work?" Almost always yes — the contractor only gives you references from satisfied clients. "Would you recommend them?" Same problem. "Did the project finish on time and on budget?" Gets closer, but not there yet.

The reference check is valuable — but only if you ask questions the reference has not pre-answered in their head before you called.

How to Get a Useful Reference List

Ask the contractor for 3 references from projects completed in the last 18 months. Specifically request: one project similar in scope to yours, one project where something unexpected came up (and how they handled it), and their most recent completed project.

A contractor who cannot provide a reference for an issue-handling project or their most recent work is a yellow flag. The best contractors will tell you upfront about a project that had problems — and explain what they did about it.

The Questions That Actually Work

When you call a reference, use these questions:

"What was the original budget and final cost?" The delta and the reason for it tells you everything about the contractor's change-order behavior.
"When did they tell you the project would be done? When was it actually done?" The timeline accuracy is one of the most predictive signals for your own project.
"Was there a moment during the project when you were worried? How did the contractor handle it?" This is the question that gets honest answers. Everyone has a moment of worry on a renovation — the question is how the contractor responded.
"How did they communicate when something changed?" Weekly updates? You had to chase them? This predicts your communication experience accurately.
"Would you hire them again for a project of this size? Why or why not?" The "why" is the most important part — a yes without context is not useful.

How to Verify a Contractor's License

Every California contractor should be verifiable at the CSLB website. Washington contractors can be checked at Labor & Industries. Check the license status, confirm it is active (not expired or suspended), verify the license classification matches your project type (a concrete contractor does not have a kitchen remodel license), and check the complaint history.

One Realm Advisor flagged a situation where neither of two contractors the homeowner had shortlisted could be found in the CSLB database: "I noticed that neither one of them were licensed. I can't find it anywhere. The contractor board is super hard to navigate." Unlicensed contractors are not covered by the state's recovery fund if something goes wrong.

What to Do With the Information

Use reference checks to confirm your instinct, not to form it. If a reference tells you a contractor had communication problems and you already had a feeling about that from the site visit, that is a pattern — trust it. If a reference is overwhelmingly positive for a contractor you are not sure about, dig into why: what specifically was positive, and does it apply to your project type and size.