Most advice on how to start a general contracting business reads like a filing checklist: form an LLC, get an EIN, write a business plan. The usual add-on is "get experience" and "watch your cash." Neither covers the thing that actually sinks first-year GCs: a bad bid on a scope they didn't fully understand.
This guide puts estimating, subcontractor management, and cash flow next to licensing and insurance. Paperwork makes you legal. Your bid process keeps you solvent.
Most New GCs Don't Fail at Building. They Fail at Bidding.
A new GC wins a $180K kitchen-and-addition remodel. The plumbing quote looked cheap, so it got the job. Nobody noticed it excluded rough-in. By framing, the plumber is asking for $9K more, and the owner points at the contract: your scope, your problem.
That $9K likely comes straight out of a profit line that was never going to be more than $25K. Nothing went wrong on the job site. It went wrong on bid day. According to the Bureau of Labor Statistics, roughly 20% of new businesses close within their first year and about half within five. Construction startups rarely die from bad framing. They die from underpriced work and cash that arrives late.
What the Typical Startup Checklist Leaves Out
The standard startup checklist is accurate on the basics: choose a structure, register, get licensed, insure, open a bank account. The standard field advice holds too: work under an established GC first, and keep more cash than you think you need.
What both skip is the operating system. They don't explain how to price a job from your own unit costs, how to compare three sub bids that cover three different scopes, or when to say no. Those skills decide whether the LLC you formed ever clears a profit.
How This Guide Is Ordered
The sequence is lane, license, insurance, cash, estimating system, sub bench, first bids. Your lane determines which license and bonding you need. Your license and insurance determine what you can bid. Your cash position determines how much work you can carry.
Only then do you build the estimating system and sub list that make bids defensible. Skipping ahead is how people end up bidding before they can price.
Pick Your Lane Before You Pick a Business Name
Project type, size, and delivery method decide your license class, bonding needs, sub list, and estimating method. That's why they come before any paperwork. A GC doing $60K bathroom remodels and a GC doing $3M tenant improvements are running different companies.
Residential, Light Commercial, or Specialty: Choose One to Start
Residential remodels ($30K–$300K) have short sales cycles and homeowners who decide in weeks. They also carry the most client hand-holding and change-order friction. Light commercial work, such as tenant improvements and small retail in the $250K–$2M range, brings bigger checks and more formal bidding. It also brings insurance requirements, bonding questions, and slower payment.
Specialty lanes like restoration, medical build-outs, and cell-tower work reward narrow expertise with less price competition. Pick one lane and build your sub bench and price book around it. Spreading across three lanes in year one means three sets of unit costs to learn.
Self-Perform vs. Sub Everything
Self-performing means carrying payroll, workers' comp, and idle crew time between jobs. Subbing everything means carrying scope risk: you answer for someone else's work and someone else's exclusions.
Most startup GCs are construction managers on day one, even if they were carpenters last year. That makes subcontractor management a core skill, not an admin task. If you self-perform anything, pick one trade you can keep busy full-time.
Set a Project-Size Ceiling for Year One
Your ceiling comes from three limits: bonding capacity, working capital, and your own hours. A solo owner can usually estimate and supervise two to four active jobs before quality slips. Working capital caps job size too, as the retainage math later in this article shows.
A practical year-one rule is to avoid any single job that would need more cash than your credit line plus reserves can fund for 90 days.
General Contractor License Requirements: What Changes by State
General contractor license requirements vary more than almost anything else in this business. California's CSLB licenses GCs statewide and requires a license for work of $1,000 or more in labor and materials (check cslb.ca.gov for current thresholds). Texas has no statewide GC license at all, leaving it to cities and counties, though plumbing, electrical, and HVAC trades are licensed at the state level.
Your state licensing board is the source of truth. Search "[your state] contractor licensing board," then confirm the dollar threshold, license classifications, and whether your city adds its own registration on top.
Experience, Exams, and Qualifying Individuals
Typical requirements include documented years of experience (California asks for four years of journey-level experience), a trade exam, and a business-and-law exam. Many states also require a qualifying individual, a person on staff whose credentials the company license rides on.
If you don't hold the qualifying credential yet, plan around it. Work under a licensed GC to log hours, or bring on a qualifier, but read the board's rules first. Many boards require the qualifier to be a real owner or employee with actual supervisory control.
Entity, EIN, and Local Registrations
Most new GCs form an LLC for liability separation and later consider an S-corp election for payroll tax reasons. That choice depends on your income and state, so ask a CPA or attorney instead of copying a forum answer.
You'll also need an EIN from the IRS, a city or county business license, and confirmation of who can pull permits. Some jurisdictions only let licensed contractors or owner-builders pull them.
General Contractor Insurance and Bonding: The Paper Stack Owners Will Ask For
Owners and lenders want proof of coverage before you touch a site. The usual stack is general liability, workers' comp, commercial auto, builder's risk, and often an umbrella policy. Surety bonding is separate and gets its own treatment below.
What You Carry
General liability covers third-party injury and property damage. Many small GCs pay roughly $1,000–$5,000 or more a year, depending on trade, payroll, and how much work you sub. Workers' comp is where new GCs most often slip. Misclassifying employees, or underreporting payroll, can trigger a painful audit bill at year-end.
Commercial auto covers work vehicles, since personal auto policies often exclude business use. Builder's risk covers the structure during construction and is often required by the owner or lender. Umbrella coverage stacks on top of liability and auto, and larger contracts often demand $1M–$5M of it.
What You Require From Subs
Your coverage is only as strong as your subs' coverage. If an uninsured sub's employee gets hurt on your job, the claim can land on your policy. Collect a certificate of insurance (COI) before any sub starts, and confirm you're named as additional insured with the endorsement, not just a line on the certificate.
Then track expiration dates. A COI that was valid in March is worthless in October if the policy lapsed. A spreadsheet works if you actually check it.
Getting Bonded With No Track Record
Sureties look at three things: personal credit, financial statements, and relevant experience. Premiums typically run about 1–3% of the bond amount for strong applicants and higher for thin credit. A new GC with no job history often gets a small bonding line, or none, at first.
Build toward it. Finish smaller jobs on time, keep clean financials with a CPA, and meet a surety agent early so you know the thresholds. The SBA's Surety Bond Guarantee program exists for small contractors who can't get standard bonding, so ask your agent whether it fits your situation.
General Contractor Startup Costs and the Cash Flow Trap
General contractor startup costs look modest on paper. Retainage and slow pay drain new GCs, not overhead. Retainage commonly runs 5–10% of every progress payment and stays with the owner until closeout.
For margin benchmarks, see our breakdown of general contractor profit margins instead of the rehash here.
A Realistic Year-One Budget
These ranges are illustrative and vary by state and lane:
| Category | Illustrative range |
|---|---|
| Licensing, exam, and entity fees | $500–$3,000 |
| Insurance deposits and first-year premiums | $3,000–$15,000 |
| Vehicle and tools | $2,000–$25,000 |
| Software (estimating, accounting) | $0–$3,000 |
| Marketing (site, signage, cards) | $1,000–$5,000 |
| Working capital | $50,000–$150,000+ |
Notice which line dwarfs the rest. Fees are a rounding error next to the cash needed to carry a job between paying subs and getting paid.
How Retainage and Pay Terms Stretch Your Working Capital
Take a $400K job running four months with a 15% gross margin. Your direct costs are about $340K, or roughly $85K a month. You bill $100K at the end of each month, the owner holds 10% retainage, and the check arrives 45 days after billing.
Your first payment of $90K lands around day 75. If you pay subs and suppliers as the work happens, you've spent about $212K by then, so your peak cash gap is about $212K, more than half the contract value, right before that first check clears. Even after it lands, you're still about $120K out of pocket. Another $40K in retainage sits uncollected until closeout, which is two-thirds of your $60K gross profit.
Size your line of credit against that peak gap plus a 15–20% buffer, and arrange it before you need it. Banks lend to contractors who aren't asking in a panic.
The Few Numbers to Watch From Month One
Our guide to construction KPIs worth tracking covers the full set. A startup needs only three or four: gross margin per job (estimated vs. actual), backlog in dollars and months, days sales outstanding, and cash on hand against your next 60 days of payables.
Everything else can wait until you have a second crew and a bookkeeper.
Construction Estimating for Beginners: Build the System Before Your First Bid
Your estimating process is infrastructure, like your truck and tools. Set it up before a bid deadline forces you to improvise, because improvised estimates are where margin leaks out.
New GCs rarely underprice because they're greedy for work. They underprice because they price from memory: they remember what the last kitchen cost, not what lumber costs today.
Start a Company Price Book on Day One
A price book holds your unit costs: labor rates, material quotes, and burden (payroll taxes, comp, insurance) rolled into a per-unit number such as drywall per square foot or interior doors per opening. Start with supplier quotes and your actual crew rates.
Then update it after every job, because the gap between what you estimated and what you spent is your best data.
Takeoff Methods: Manual, Digital, and AI-Assisted
Scales and printed plans cost nothing and teach you to read drawings, but they're slow and easy to get wrong when a deadline is tight. Desktop tools like PlanSwift and STACK speed up measurement and keep quantities organized, though you still click through every sheet and learn the software.
AI-assisted takeoff from uploaded plan PDFs shifts more of the measuring to software, so a takeoff comes in hours, not days. Struvia goes a step further and turns the takeoff into a priced estimate from your own price book, and it bills on usage instead of seats, so a one-person shop isn't carrying a software subscription before it has won a job. Our estimating software comparison for small contractors covers the full field.
Make Every Line Traceable
Every line in an estimate should trace to a plan sheet, a quantity, or a stated assumption. When an owner says "that was included," you point to sheet A-201 and your exclusions list.
Traceable estimates also teach you something. After the job, you can see exactly which assumption was wrong, and that's how your price book improves.
Subcontractor Management: Build Your Bench Before You Need It
For a new GC, the sub list is the real balance sheet. Your reputation, schedule, and margin all run through the people you hire. Build that bench before your first bid, not during it.
Take the plumbing package on a 12-unit townhome job in Boise. Bids that land 20% apart are common, and much of that spread is usually scope, not price. One bid carries fixtures, another doesn't. One includes trenching, another assumes you do.
Finding and Prequalifying Subs Without a Track Record
Start local. Ask suppliers who they see paying on time, ask former employers for referrals, and check license status on your state board's website. Call two references on every new sub, request a current COI, and start them on a small scope before trusting them with a critical one.
Bid Leveling: Compare Scope, Not Just Price
Bid leveling means putting every sub bid on the same scope basis. Build a simple grid by line item and mark what each sub includes, excludes, and assumes. Look for exclusions (permits, trenching, disposal), unstated allowances, and scope gaps between trades, like who patches the drywall after electrical.
Leveling software can build that grid for you once you're bidding several packages a week. Until then, a spreadsheet with one row per scope item works.
Send Bid Packages Out the Same Day
Subs bid what you show them. A good package has a clear scope sheet per trade, current drawings, a due date, and a single channel for questions. Answer every question in writing and send it to every bidder, so all bids rest on the same information.
Speed matters because subs price faster, and better, when they get a clean package early. Send it the day you have plans, not a week before bids are due.
How to Bid Construction Jobs Without Giving Away Your Margin
How to bid construction jobs comes down to discipline: bid/no-bid criteria, overhead and markup applied correctly, a contingency, and written exclusions.
Picture a new GC on a $220K commercial TI where nobody priced the demising-wall firestopping. Rather than argue with the owner, the GC absorbs the $11K out of profit "to keep the relationship." The client stays, the job makes nothing, and the same gap shows up in the next bid because it never made it onto a checklist. The better move is to price it, document it, and add it to your exclusions checklist.
Markup vs. Margin: The Math New GCs Get Backwards
A 20% markup is not a 20% margin. Add 20% to a $100K cost and you price at $120K, but your profit of $20K is only 16.7% of the price.
To hit a target margin, divide cost by one minus that margin. Say your overhead runs 15% of revenue and you want a 10% net profit, so you need a 25% gross margin. Price a $100K direct cost at $100K ÷ 0.75 = $133,333, not $125K. That gap is $8,333 of profit you'd otherwise lose.
A Bid/No-Bid Filter for Your First Year
Score every opportunity against five criteria: scope familiarity, client payment history, distance to site, schedule fit, and sub availability. If a job fails two of the five, pass on it.
That rule feels harsh when you need work. It's cheaper than a job you can't price, can't staff, or won't get paid for on time.
Where the First Clients Come From
Your first clients almost always come from people who've already seen your work: former employers, past co-workers, suppliers, and neighbors of those clients. Tell all of them what lane you're in and the project size you want. Referrals from a trusted source start with trust already built and less price shopping.
For tactics beyond that, see our guides on getting more construction clients and growing a construction business.
Frequently Asked Questions
Do I need a license to start a general contracting business?
It depends on your state and the job value. California requires a CSLB license above a low dollar threshold, while Texas has no statewide GC license but regulates certain trades and leaves much to local jurisdictions. Check your state licensing board and your city or county before you bid.
How much money do I need to start a general contracting business?
Startup fees, insurance, and tools can run $10,000–$50,000 depending on your lane. Working capital matters more: plan for $50,000–$150,000 or a matching credit line, since retainage and 30–45-day pay cycles mean you fund jobs before owners pay you.
Can I start a general contracting business with no experience?
Most licensing boards require documented experience, often around four years, so you likely can't get licensed without it. Build a record by working under a licensed GC, running projects as a superintendent or project manager, and keeping documentation of the work you supervised.
What insurance does a general contractor need?
Most GCs carry general liability, workers' comp, commercial auto, and builder's risk, and often an umbrella policy. Requirements vary by state and by contract, so read the insurance section of every contract before you sign.
How do new general contractors find subcontractors?
Start with local referrals, supplier recommendations, and former employers. Then prequalify with license checks, references, and a current COI before you award anything. If you're building a bench somewhere new, our guide to finding subcontractors in a new market walks through the process.
What software does a new GC need?
Start with estimating and bid management, then add accounting and project management as you grow. Procore and Buildertrend cover project execution. Struvia covers preconstruction through buyout, and it isn't job-costing or accounting software.
How to Start a General Contracting Business and Stay in It
If you're working out how to start a general contracting business, licensing and insurance get you in the game, and a disciplined bid process keeps you in it. Pick a lane, fund the cash gap, build a price book, and bench your subs before you need them.
When you're ready to price your first bid, upload a plan set to Struvia free and get a takeoff and priced estimate back from your own price book, then send sub bid packages from the same job. New accounts start with 600 free credits.
*Reviewed by Weston Burnett, Co-Founder and CTO of Struvia.*
