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Top Tips for Vetting a Residential General Contractor

The questions to ask, the paperwork to request and the red flags to watch for before you sign.

  • 6 sections
  • Aug 25, 2026
  • 6 min read
  • Hiring a Builder

Choosing a builder is the most important decision in any construction project. Here is how to do it with confidence.

Look at real, finished work

Ask for photos of completed projects similar to yours — and ideally, the chance to talk with those homeowners.

If possible, visit a finished home or a job in progress. How a site is kept says a lot about how a project is run.

Ask to see finished work like the Donohue Barndominium.
Ask to see finished work like the Donohue Barndominium.

Read reviews carefully

Look for patterns: communication, staying on budget, finishing on time, and how problems were handled.

Notice how a builder responds to a less-than-perfect review. A calm, specific reply is a good sign.

Ask for proof of insurance

Any contractor should be able to provide a current certificate of liability insurance. Confirm any registration your municipality requires.

Ask what happens if a trade partner causes damage, and who is responsible for fixing it.

Quality shows in the finished rooms.
Quality shows in the finished rooms.

Demand a detailed estimate

A one-line price is a red flag. A line-item estimate shows the builder has actually thought through your project.

Compare estimates line by line, not just by the total. A lower number sometimes means something has been left out.

Understand the payment schedule

Payments should follow completed milestones. Be cautious of large up-front payments unrelated to materials or work completed.

Ask how change orders are priced and approved before work begins, so there are no surprises later.

Ask who will run the job

Will the person you are meeting with be on site, or will the job be handed off? At Isaac Construction, it is Cody, every time.

Ask how often you will get updates, and how. Clear expectations about communication prevent most frustrations.

A forever home beside a pond — the Schneidau Custom.
A forever home beside a pond — the Schneidau Custom.
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