General Contractor: What They Actually Do, What They Charge, and When You Need One

Your neighbor just told you their $40,000 bathroom remodel ended up at $58,000. The contractor blamed "unforeseen conditions." The real issue? They hired three separate subcontractors with no general contractor coordinating the work. The plumber roughed in pipes before the electrician moved a junction box, so the plumber had to come back — at $125/hour — and redo two days of work. A general contractor would have caught that conflict before anyone picked up a wrench.

That's the core of what a GC does: they prevent expensive mistakes by managing the sequence, timing, and quality of every trade on your project. Whether that management fee is worth it depends on what you're building.

What a General Contractor Actually Does

A general contractor — GC for short — is the single point of responsibility for a construction or renovation project. They don't typically swing hammers themselves (though some do on smaller jobs). Instead, they manage everything between your signed contract and your final walkthrough.

The short answer: a GC is a project manager with a contractor's license, insurance, and legal liability for the work.

Here's what that looks like day-to-day:

• Hiring and scheduling subcontractors — electricians, plumbers, framers, drywall crews, painters, flooring installers — in the right sequence
• Pulling permits and coordinating inspections with your local building department
• Ordering materials and managing deliveries so they arrive when needed, not three weeks early (blocking your garage) or two days late (idling a $400/day crew)
• Quality control — checking work against plans and code requirements before the next trade starts
• Budget management — tracking costs, processing change orders, and flagging overruns before they spiral
• Problem-solving — when you open a wall and find knob-and-tube wiring or a cracked joist, the GC figures out the fix, gets it approved, and keeps the project moving

Key distinction: A GC assumes legal and financial liability for the project. If a subcontractor's work fails inspection, the GC pays for the fix. If someone gets injured on-site, the GC's workers' comp and general liability insurance respond first. That liability transfer is a major part of what you're paying for.

What General Contractors Charge

GC fees follow three common structures, and the one you'll encounter depends on your project size and local market.

On a $50,000 kitchen remodel, a 15% GC fee adds $7,500. On a $200,000 whole-house renovation, a 12% fee runs $24,000. The percentage tends to drop as project value rises — a $500,000 project might see a 10% fee because the GC's fixed overhead gets spread across more revenue.

That said, the fee isn't pure profit. Per industry data from the National Association of Home Builders, a typical GC's 18% markup breaks down roughly as:

• 8–10% — overhead (insurance, office, vehicle, license, accounting)
• 5–8% — net profit
• 2–3% — warranty reserves and contingency

A GC running on less than 10% total markup is either cutting corners on insurance, underpaying subs, or about to go out of business. All three are bad for you.

Use our whole-house remodel cost calculator to estimate your total project cost — including what you should expect to pay a GC.

General Contractor vs. Subcontractor vs. Handyman

These three get confused constantly. Here's the breakdown:

The critical difference: a GC is responsible for the whole project. A subcontractor is responsible for their trade only. If the tile installer cracks your new bathtub while moving it, that's the GC's problem to resolve — not yours to chase down.

When You Actually Need a General Contractor

Not every project needs a GC. Here's the honest split:

Skip the GC when:

• The project involves a single trade (just painting, just flooring, just a new deck)
• Total budget is under $10,000
• No permits are required
• You have the time and willingness to manage scheduling yourself

Hire a GC when:

• Three or more trades are involved (plumbing + electrical + carpentry + drywall + paint)
• Permits and inspections are required
• The project exceeds $30,000
• Structural changes are part of the scope
• You're living in the house during renovation (a GC manages disruption far better than you can while also working your day job)
• Timeline is critical — a GC's scheduling relationships with subs can cut 2-4 weeks off a project

That said, even on GC-appropriate projects, some homeowners successfully self-manage. It works if you have construction experience, flexible time during business hours, and the stomach for conflict resolution when the drywall crew shows up and the electrical rough-in isn't done.

For a deeper comparison, see our DIY vs. contractor cost breakdown.

Where the GC Model Breaks Down

Here's the thing: hiring a GC doesn't eliminate risk. It shifts it — but only as far as the GC's competence and insurance coverage.

Three scenarios where a GC doesn't help:

1. Unlicensed or underinsured GCs. About 1 in 5 contractors operating in the U.S. lack proper licensing, per FTC estimates. Their "management" offers zero legal protection. If something goes wrong, you're suing an LLC with no assets.
2. Cost-plus contracts without caps. Some GCs charge cost-plus (actual costs + their markup) with no maximum. On a $60,000 project, "unforeseen conditions" can push costs to $90,000 with no breach of contract. Always negotiate a guaranteed maximum price (GMP) or a fixed-price contract.
3. Over-reliance on the lowest bid. The GC who bids $38,000 when three others bid $48,000–$52,000 isn't giving you a deal. They're either leaving out scope, planning to hit you with change orders, or underestimating the job. All three end badly.

Before hiring, read our full guide to hiring a renovation contractor — it covers the vetting process, contract terms, and payment schedules that protect you.

How to Find and Vet a General Contractor

The vetting process matters more than the selection. A polished website means nothing if the license is expired.

Step 1: Get referrals. Ask neighbors, your real estate agent, or local building supply stores — not Google ads. The best GCs in any market are booked 4-8 weeks out and rarely advertise.

Step 2: Verify credentials. Check your state licensing board for active status, insurance certificates (general liability at $1M minimum and workers' comp), and any complaints. Takes 5 minutes.

Step 3: Get 3-5 bids on identical scopes. Write a detailed scope of work before calling anyone. Every GC should bid on the same document. If bids vary by more than 25%, someone is reading the scope differently — clarify before choosing.

Step 4: Check references — and actually call them. Ask past clients: Did they finish on time? On budget? How did they handle problems? Would you hire them again? The last question reveals everything.

Step 5: Read the contract. Every word. Look for payment schedules tied to milestones (never more than 10-15% upfront), change order procedures, warranty terms, and a clear completion date with delay consequences.

For planning your renovation budget before you start the contractor search, use our home renovation planning guide.

Frequently Asked Questions

How much does a general contractor charge?

Most GCs charge 10-20% of total project costs as their fee. On a $50,000 kitchen remodel, that's $5,000-$10,000 on top of materials and labor. Some charge hourly ($50-$150/hr) for smaller jobs or consulting. The percentage typically drops on larger projects — a $500,000 whole-house renovation might see a 10-12% GC fee rather than 20%.

What is the difference between a general contractor and a handyman?

A general contractor is licensed to manage large-scale projects involving multiple trades, permits, and inspections. A handyman handles small repairs — fixing a faucet, patching drywall, swapping a light fixture. Most states require a contractor license for any job exceeding $500-$1,000 in value. If the project involves structural changes, electrical, or plumbing work, you need a GC or licensed specialty contractor, not a handyman.

Do I need a general contractor for a bathroom remodel?

If the remodel involves moving plumbing, electrical changes, or structural modifications — yes. A basic cosmetic refresh (new vanity, paint, fixtures) with a single trade can skip the GC. But once you're coordinating a plumber, electrician, and tile installer on overlapping timelines, a GC's 15-20% markup usually pays for itself by preventing $3,000-$8,000 in coordination mistakes and rework.

Can I be my own general contractor?

Legally, yes — you can manage subcontractors yourself on your own property in most states. Practically, it works for simple projects with 1-2 trades. Beyond that, you're taking on permit management, scheduling conflicts, code compliance, insurance gaps, and supplier negotiations. Homeowners who self-manage complex renovations report 25-40% longer timelines and frequently exceed budgets by 20%+ due to coordination errors.

How do I verify a general contractor's license?

Search your state's contractor licensing board website — every state has one. Enter the contractor's name or license number. Confirm the license is active, not expired, and check for complaints or disciplinary actions. In California, use the CSLB site. In Texas, check with your city or county since there's no statewide licensing. This 5-minute check can save you thousands.

What does a general contractor's markup cover?

The 10-20% markup covers project management, scheduling, permit coordination, insurance (general liability and workers' comp), warranty on workmanship, and the GC's profit. It also covers the liability they assume — if a subcontractor damages your property or gets injured, the GC's insurance responds first. You're paying for risk transfer as much as management.

Should I hire a general contractor or subcontractors directly?

Hire subs directly if your project involves one trade (just flooring, just painting) and you have time to manage it. Hire a GC when 3+ trades overlap, permits are required, or the project exceeds $30,000. Self-managing subcontractors saves the GC's 15-20% fee but puts scheduling, quality control, code compliance, and liability entirely on you.

What questions should I ask before hiring a general contractor?

Ask for their license number (and verify it), proof of general liability and workers' comp insurance, 3+ references from projects similar to yours, a detailed written estimate with line-item breakdown, their approach to change orders, expected timeline with milestones, and who will be on-site daily. If they dodge any of these, move on.

Ready to estimate your renovation costs before talking to contractors? Try our whole-house remodel cost calculator to get a baseline number — so you know whether that GC's bid is in the right ballpark or $20,000 over market.