How to Hire a General Contractor: Vetting, Bids, Contracts & Change Orders

Residential projects involve different roles. Knowing who does what prevents hiring mismatched expertise.

Start with a shortlist of three to five contractors who regularly complete projects similar to yours in size and complexity.

• License: Verify state/local contractor license status and any required specialty classifications
• Insurance: Request certificates for general liability and workers' compensation
• Bonding: Confirm if required locally or for your loan type
• References: Speak with clients from the last 12–24 months—not only hand-picked showcase jobs

Expert insight: A contractor who hesitates to provide insurance certificates or recent references is telling you something important.

Bids are only comparable when scope, specifications, and assumptions match. Provide drawings, product selections, permit responsibility, and site access rules.

Lowest price often excludes contingencies, supervision, or realistic allowances. Create a bid leveling sheet that lists each line item across contractors.

Expert insight: If one bid is 20% lower, assume scope is missing until proven otherwise—not that you found a bargain.

Regardless of type, contracts should define start date, substantial completion date, payment schedule, change order procedure, warranty terms, and dispute resolution.

Never pay large deposits upfront. Tie payments to verifiable milestones—demo complete, rough-in inspected, drywall hung, substantial completion.

• Retainage: Hold 5–10% until punch list is finished
• Lien waivers: Collect conditional waivers with each payment; final unconditional when done
• Escrow: Some owners use third-party escrow for large custom builds

Change orders are normal; undocumented changes are not. Every scope, cost, and schedule adjustment should be written and signed before work proceeds.

Expert insight: Never authorize extra work with a text message alone—get it in the contract change system.

Weekly site meetings with documented minutes prevent drift. Photo logs, shared schedules, and a single decision-maker on the owner side keep projects moving.

• Designate one owner representative for approvals
• Track selections deadlines—late picks delay orders
• Use a shared folder for RFIs, submittals, and invoices

Define warranty length for workmanship vs. manufacturer products. Walk punch list with the contractor before final payment; retainage ensures completion motivation.

• Cash-only demands or pressure to skip permits
• No written contract or vague scope
• Deposit exceeding local norms (often 10–33% depending on project)
• Unwillingness to provide insurance docs
• Reviews citing abandoned jobs or lien issues

Kitchens combine plumbing, electrical, gas, ventilation, cabinetry, and finishes—coordination-heavy work. Prefer contractors with recent kitchen portfolios and established supplier relationships.

• Are license and insurance verified?
• Did you call three recent references?
• Are bids leveled with identical scope?
• Does the contract define payment, change orders, and warranty?
• Is retainage included until punch list completion?
• Are selections finalized or allowances clearly stated?

At NestlyDwell, we publish thoroughly researched home design guides that help homeowners, renters, and design enthusiasts plan beautiful, functional spaces with confidence.

Our editorial team synthesizes professional standards, practical planning frameworks, and real-world renovation lessons so you can make informed decisions at every stage of your project.

Whenever applicable, we recommend verifying local codes, contractor credentials, and product specifications with qualified professionals before beginning major work.