How to Hire a General Contractor for the First Time Without Making Costly Mistakes

What a General Contractor Actually Does

A general contractor manages the full scope of a construction or renovation project: hiring and scheduling subcontractors, pulling permits, ordering materials, and serving as your primary point of contact from demolition to final punch list. On large projects, the GC adds significant value by coordinating trades whose schedules depend on each other—framing before electrical rough-in, rough-in before insulation, insulation before drywall—and by taking legal responsibility for the quality of the work through their license and bond. For projects involving multiple trades or structural changes, hiring a qualified GC is almost always worth the management fee, which typically runs 10 to 20 percent of total project cost.

Where to Find Qualified Candidates

Personal referrals from neighbors, friends, or colleagues who have recently completed similar projects are the most reliable source of qualified contractor leads. Ask specifically about communication, budget adherence, and how the contractor handled unexpected problems—every project has them, and the response to surprises reveals more about a contractor than their proposal does. Beyond referrals, check the National Association of the Remodeling Industry member directory and your local home builders association. Online platforms like Houzz and Angi can surface local contractors, but require more due diligence since listing does not imply vetting.

The Vetting Process Before You Request a Bid

Before inviting anyone to bid, verify three things. First, confirm the contractor holds a current license in your state through the state licensing board website. Second, ask for proof of general liability insurance and workers compensation coverage and confirm the policy is active by calling the insurer directly. Third, check their complaint history through the Better Business Bureau and your state licensing board. A single complaint is not necessarily disqualifying, but unresolved complaints or a pattern of disputes is a serious warning sign. Contractors who resist providing proof of insurance or who claim they do not need a license for your type of project should be removed from consideration immediately.

Getting and Comparing Bids

Invite at least three contractors to bid on your project. Provide each one with an identical written scope of work so you are comparing equivalent proposals. A thorough bid should include a detailed breakdown of labor and materials by trade, the payment schedule tied to project milestones, the projected timeline with start and completion dates, and any exclusions or allowances that could affect the final price. Be cautious of bids that are significantly lower than the others—they often reflect either a misunderstanding of scope, underbidding to win the job, or plans to cut corners. The middle bid from the most qualified and communicative contractor is frequently the best overall value.

The Contract: What Must Be in Writing

Never begin work without a signed written contract. At minimum, the contract should specify the complete scope of work with reference to any plans or specifications, the total contract price and payment schedule, the project start and estimated completion dates, a change order process that requires written approval before any work outside the original scope begins, and the contractor's license number and insurance information. Retain a meaningful holdback—typically 10 percent of the total contract—until the punch list is complete and you have confirmed all permits are closed and all subcontractors and suppliers have been paid. A lien waiver from the GC at final payment protects you from claims by unpaid subs even after you have paid the contractor in full.