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Hiring a General Contractor: What Every Homeowner Should Know

Hiring a General Contractor: What Every Homeowner Should Know

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Understand licensing, written contracts, payment schedules, and red flags before signing anything with a renovation contractor.

Key Takeaways

  • Always verify a contractor's license and insurance before signing anything.
  • Get at least three itemized bids to understand true project scope and cost.
  • A written contract protects both parties — never rely on verbal agreements alone.
  • A fair payment schedule ties installments to completed work milestones, not calendar dates.
  • Large upfront deposits and pressure to skip permits are serious warning signs.
  • Permits and inspections are your responsibility to confirm, even when a contractor pulls them.

What a General Contractor Actually Does

A general contractor (GC) serves as the central coordinator of a renovation or construction project. They hire and schedule subcontractors — such as electricians, plumbers, and tile setters — manage material deliveries, oversee day-to-day site operations, and act as your primary point of contact from start to finish.

This coordination role is what distinguishes a GC from a trade specialist. When you're remodeling a bathroom, for example, the GC ensures the plumber, electrician, and tile installer show up in the right sequence so work doesn't undo itself. For a deeper look at how that sequencing works in practice, see the Bathroom Remodel From Start to Finish.

Not every project needs a GC. Smaller, single-trade jobs — replacing a water heater, patching drywall — may be handled directly by a specialist. The DIY or Licensed Pro framework can help you decide whether your project warrants full general contractor management or a more targeted approach.

Licensing, Insurance, and How to Verify Both

Licensing requirements for general contractors vary by state and sometimes by county or municipality. Most states require GCs to hold an active license issued by a contractor licensing board. This license confirms minimum competency standards have been met and gives you a formal complaint pathway if something goes wrong.

General Contractor (GC)

A licensed professional who manages an entire construction or renovation project, hiring and coordinating subcontractors and serving as the homeowner's main point of contact.

Subcontractor

A trade specialist — such as a plumber, electrician, or HVAC technician — hired by the GC to perform specific portions of a project.

Change Order

A written amendment to the original contract that documents and prices any changes to the agreed scope of work. All changes should be approved in writing before work proceeds.

Mechanics Lien

A legal claim a contractor, subcontractor, or supplier can place on your property if they are not paid for work or materials. A lien can complicate or block a property sale.

Lien Waiver

A signed document in which a contractor or subcontractor confirms payment received and gives up their right to file a mechanics lien on your property.

Certificate of Insurance

A one-page document issued by an insurer confirming an active insurance policy. Always request and verify this before allowing any contractor to begin work.

To verify a license, visit your state's contractor licensing board website and search by name or license number. Confirm the license is current, covers the work category your project requires, and shows no disciplinary actions or suspensions.

Insurance is equally non-negotiable. Ask any candidate for two documents: a certificate of general liability insurance and proof of workers' compensation coverage. General liability protects your property if the contractor causes damage; workers' comp protects you from being liable if a worker is injured on your property. Request that your name appear as an additional insured on the certificate and call the insurer directly to confirm the policy is active.

Getting and Comparing Bids

Soliciting at least three bids is standard practice — and for good reason. Multiple bids reveal the realistic cost range for your project and expose proposals that are suspiciously low or unusually high. Before you invite anyone to bid, prepare a clear scope document describing exactly what work you want done. Vague scope leads to vague bids that cannot be meaningfully compared.

When bids arrive, look beyond the bottom-line number. A well-structured bid should itemize labor costs, material quantities and allowances, subcontractor work, and any exclusions. If one bid is dramatically lower than the others, ask the contractor to walk you through their assumptions — they may have missed scope, planned to use lower-grade materials, or intend to mark up subcontractors heavily later.

Before you reach the bidding stage, completing a room-by-room planning checklist helps you define scope with enough precision to get comparable proposals. See Before You Swing a Hammer for a structured way to work through those decisions.

What Every Written Contract Should Include

A signed written contract is the single most important document in any contractor relationship. Verbal agreements are legally enforceable in some circumstances but nearly impossible to prove when disputes arise. The contract should be specific enough that both parties share a clear understanding of exactly what is — and is not — included.

At minimum, a solid contractor agreement should contain:

  • Detailed scope of work — materials, specifications, finishes, and quantities
  • Start and estimated completion dates with milestones where appropriate
  • Total contract price and how changes will be handled (change order process)
  • Payment schedule tied to work milestones, not calendar dates
  • Permit responsibility — which party pulls and pays for permits
  • Warranty terms — both on workmanship and on materials
  • Dispute resolution process — arbitration, mediation, or litigation
  • Cleanup and site protection expectations

If unfamiliar terminology appears in the contract, the Home Improvement Terminology guide explains the most common renovation terms in plain language.

Permits deserve special attention. Even if your contract states the contractor is responsible for pulling permits, confirm with your local building department that permits were actually issued before work in that trade begins. Unpermitted work can create serious problems at resale. The Permits, Inspections, and Code article explains why skipping this step costs far more than the permit fee.

Payment Schedules and Red Flags to Watch For

How and when you pay a contractor matters as much as how much you pay. A fair payment schedule protects both parties by tying money to progress. A typical structure might look like: a modest deposit at signing, a payment at project midpoint after inspectable work is complete, and a final payment only after you have done a walkthrough and confirmed the work meets the contract.

Never Pay in Full Before Work Is Done

Paying a contractor in full before a project is complete removes your most effective leverage. If problems arise after the final payment is made, your options become significantly more complicated and costly. Hold back a meaningful final payment — often 10–15% — until you have completed a walkthrough and are satisfied with the results.

Never release the final payment until you are satisfied with the completed work and have collected signed lien waivers from the GC and any subcontractors. The final payment is your primary leverage.

Watch for these red flags before and during a project:

  • Requests for a large upfront deposit (30% or more) before materials are ordered or work begins
  • Pressure to skip permits or pay cash to avoid documentation
  • Reluctance to provide a written contract or license documentation
  • No physical business address or verifiable history of completed projects
  • Demanding full payment before the final inspection is complete

If budget control is a concern — and it usually is — the Kitchen Renovation cost-control guide covers practical strategies for keeping a major project from expanding beyond its original scope and cost.

Frequently Asked Questions

Most states maintain a searchable online database through their contractor licensing board or department of consumer affairs. Search by the contractor's name and license number. Confirm the license is active, covers the right trade category, and has no disciplinary history.
A reasonable deposit is typically 10–20% of the total project cost, used to secure materials and schedule labor. Be cautious of any contractor demanding 30% or more before work begins. Payment should then follow milestones tied to completed, inspectable work.
Whether a permit is required depends on your local building code, not the contractor's opinion. Structural changes, electrical work, plumbing, and HVAC modifications almost always require permits. Contact your local building department directly to confirm requirements before work starts.
A lien waiver is a document signed by a contractor or subcontractor confirming they have been paid and waive their right to place a mechanics lien on your property. Collecting lien waivers with each payment protects you from claims by unpaid subcontractors or suppliers — even if you already paid the GC.
Document everything immediately — photos, written communications, and payment records. Contact your state contractor licensing board to file a complaint. You may also have recourse through the contractor's surety bond, small claims court, or civil litigation depending on the contract value.
Legally they may be able to, depending on your state's laws, but you should never allow it. Without a written contract you have no enforceable record of scope, price, timeline, or warranties. Always insist on a signed agreement before any work or material purchases begin.
Home & Garden Editorial Team

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Home & Garden Editorial Team

Home & Garden Editorial Team is the collective byline for our editorial team and contributor network. Articles published under this byline or an editorial pen name are researched, written, and reviewed according to our editorial standards for clarity, consistency, and independence before publication.

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