How to grow from subcontractor to general contractor
Start small and staged: get the right license, build bonding capacity, hire or learn project management, price general conditions honestly, and take GC work that leans on your own trade before bidding jobs you would mostly sub out.
Plan reviews connect field conditions, drawings, and the next decisions on a job. AI-generated illustration.
To grow from subcontractor to general contractor, add the pieces a GC needs that a sub does not: the right license class, bonding capacity, project management and scheduling skill, a bench of reliable subs, and the cash to carry payroll and sub payments before the owner pays. The safest route is staged. Start with GC jobs where your own trade is a large share of the work, such as a roofer taking a re-roof with minor carpentry and sheet metal, then grow into jobs you mostly coordinate. Many subs who jump straight to large GC work find that coordination, not craftsmanship, is the hard part.
What changes when you become the GC
Subcontractor vs general contractor: what you own
Area
As a sub
As a GC
Contract
Subcontract with a GC
Prime contract with the owner
Scope
One trade
Every trade plus general conditions
Schedule
Your activities
The whole project and trade sequencing
Money
Your pay apps
Owner billing, sub payments, lien waivers from every tier
Risk
Your work and crew
Every sub's performance, site safety, owner relationship
Paperwork
Submittals and pay apps for your scope
RFIs, submittals, change orders, meetings, closeout for all trades
Signs you are ready to make the move
There is no single revenue number that says a sub is ready. These signs matter more:
Clean financials. Reviewed or audited statements, current job cost reports, and a WIP schedule your banker understands.
Cash to carry a job. You can fund payroll and pay subs for two or three months before the owner's money arrives.
A second leader. Someone other than the owner can run the field or the office for a week without calls.
Owner demand. Building owners already ask you to handle the other trades on small jobs.
A sub bench. You can name a reliable sub for each trade you would need to hire.
If two or more are missing, fix those first. They are cheaper to build before the first GC job than during it.
Step by step: a staged path from sub to GC
1. Check licensing first
Many states license general contractors separately from specialty trades, with different exams, experience, insurance, and financial requirements. Some cities and counties add their own. Your trade license may not let you contract for work outside it. Look up your state on the contractor license pages before you bid anything outside your trade.
2. Build bonding capacity
Public and many commercial owners require bonds. On federal construction, FAR 28.102-1 requires Miller Act performance and payment bonds on contracts over $150,000, and for contracts over $35,000 up to $150,000 the contracting officer picks at least two alternative payment protections, such as a payment bond, letter of credit, or escrow. Sureties look at your financial statements, working capital, and track record. Start the conversation with a surety agent a year before you need the bond. Small firms that cannot qualify elsewhere can look at the U.S. Small Business Administration Surety Bond Guarantee program, which the U.S. Small Business Administration says covers contracts up to $9 million non-federal and up to $14 million federal. See how bonding capacity is calculated.
3. Learn the GC's paperwork before you need it
You already see GC paperwork from the receiving end. Now you will produce it: schedules, RFI and submittal logs, meeting minutes, owner pay apps with sub billing rolled in, change order logs, lien waivers from every sub and supplier, and closeout binders. Pick a system before job one. Trying to run your first GC job from texts and spreadsheets is how small GCs lose margin.
4. Price general conditions honestly
Subs often underprice GC work because they forget the costs a GC carries: supervision, temporary facilities, dumpsters, cleanup, permits, insurance, bonds, and the PM's time. Build a general conditions estimate by week of duration and add a fee that covers your overhead and the risk of every sub you hire.
5. Build a bench of subs you trust
Your GC relationships taught you which subs show up. Recruit them. Prequalify each one: license, insurance, safety, and references. Level their bids carefully; see how to level subcontractor bids. One unreliable sub can sink a small GC's first job.
6. Start with jobs where your trade is the anchor
Take GC jobs where your own crews do a large share of the work. You control the critical activities, you know the costs, and you only coordinate a few other trades. Some federal contracts also require the prime to self-perform a set share of the work; FAR 52.236-1 leaves the percentage blank to be filled in for each contract, so read the solicitation.
7. Hire a project manager before you are overwhelmed
Owners of trade firms usually run the field. A GC needs someone running the paperwork and the owner relationship. When GC revenue reaches the point where you are doing estimating, PM work, and field supervision at night, it is time to hire. See how to hire a construction project manager.
Worked example: an electrical sub takes its first GC job
Here is an illustration. An electrical sub with $3 million a year in revenue bids a $410,000 lighting and controls retrofit for a school district as the GC. Its own work is about $290,000. It subs out ceiling work, painting, and abatement.
Example: first GC bid, built up (illustrative numbers)
Item
Amount
Self-performed electrical
$290,000
Subcontracted ceilings, painting, abatement
$62,000
General conditions (12 weeks of supervision, dumpsters, temp protection, permits)
$28,000
Bonds and added insurance
$9,000
GC fee on subcontracted work and general conditions
$21,000
Total bid
$410,000
On its first try, the sub's estimator left out general conditions and the GC fee and priced the bid at $361,000. That would have cut the profit on the job to almost nothing once supervision and dumpsters were paid. The second version is the one to submit.
Mistakes to avoid
Competing with your best GC customers in their core market without thinking through the relationship.
Bidding outside your license class.
Leaving out general conditions or pricing them as a flat percentage you never checked.
Taking a big job with mostly subbed-out work as your first GC project.
Paying subs before you are paid without a cash plan, or holding sub payments longer than your contract and state law allow.
Skipping lien waivers from subs and suppliers, which leaves the owner exposed and can hold up your payment.
Do I need a separate license to be a general contractor?+
In many states, yes. General contractor licenses often have different exams and requirements than specialty licenses. Check your state's licensing board before bidding outside your trade.
When are bonds required on federal construction?+
FAR 28.102-1 requires Miller Act performance and payment bonds on construction contracts over $150,000. For contracts over $35,000 up to $150,000, the contracting officer selects at least two alternative payment protections.
Can a small sub get bonded as a new GC?+
Often, if its financial statements and track record support it. The U.S. Small Business Administration Surety Bond Guarantee program helps small businesses that may not qualify elsewhere, covering contracts up to $9 million non-federal and $14 million federal according to the U.S. Small Business Administration.
Will GCs stop hiring me if I become a GC?+
Some may, especially if you compete with them directly. Many firms do both by keeping GC work in a different market, size range, or client type from their GC customers.
What is the biggest new cost for a sub becoming a GC?+
Usually general conditions and project management time. Supervision, temporary facilities, cleanup, permits, and paperwork are easy to underprice the first time.
Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.
Related listening · Scaling Legends
The $10 Billion New York Bus Terminal: STV and Turner Just Won Program Management — How Every Contractor Can Position to Win Work on the Biggest Transit Project in North America Right Now
The Port Authority of New York and New Jersey selected an STV-Turner Construction joint venture to manage the program for the replacement of the world's busiest bus terminal — a project with a $10 billion budget. This episode explains what program management means versus general contractor, when trade packages will begin flowing, what PANYNJ prequalification requirements look like, and the specific steps contractors should take right now to get on the bid lists before prime packages are posted.
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Read the full episode transcript
Published transcript from Scaling Legends. It may contain transcription errors. View the source transcript.
Right now, I mean, right in the middle of Manhattan, there is this massive $10 billion tidal wave forming. Oh, absolutely. It's huge. And the crazy part is, if you're a midsize contractor, you don't actually need a New York zip code to ride it. We are diving into the total replacement of the Port Authority bus terminal at 8th Avenue and 42nd Street today. Yeah, and to really understand the gravity of this, you have to look at the daily volume. Right. The current facility, it handles over 8 ,000 buses and roughly 230 ,000 passengers. every single day. That's practically a small city moving through there. Exactly. And they are preparing to tear down this mid -century logistical behemoth while keeping it fully operational.
I mean, they're doing this right on top of some of the most complex subterranean infrastructure on the planet. Which is wild. And most contractors hear about a project of that scale, and they just assume the window is already closed, right? Oh, yeah. They think the ship has sailed. Right. They sit around waiting for a public request for qualifications to drop in some trade journal. But by the time those RFQs see the light of day, the smart money has already been maneuvering for months. What? Sometimes years. Exactly. So our mission for this deep dive today is to break down how you, the heavy hitters and firms looking to scale up, can position your business right now. to win a lucrative prime package before those public bids are even posted. And the window of opportunity is actually wide open right now because of a fundamental shift in how this specific
megaproject is being managed. How so? Well, a joint venture between STV and Turner Construction just won the program management contract from the Port Authority of New York and New Jersey. Okay, so for the seasoned business owners listening, the difference between a general contractor and a program manager is pretty much industry 101. Right. But the way STV and Turner are deploying this specific joint venture, it kind of changes the entire bidding landscape, doesn't it? It completely flips it. I mean, think of STV Turner as an air traffic control tower. They aren't flying the planes themselves. They are sequencing the airspace. They handle the design oversight, the procurement phasing, the overarching construction administration on behalf of the port authority. But they aren't the ones on the ground. Exactly. They're not the ones swinging the hammers, you
know, hanging the structural steel or pouring the concrete. Which means they aren't hoarding the prime work for their own internal divisions. Precisely. A traditional monolithic general contractor approach on a $10 billion project. it just centralizes far too much risk. Yeah, that's a massive liability. Right. So by stepping back into a program management role... STV Turner and the Port Authority are distributing that risk. They are actively carving this mammoth project into dozens of highly lucrative specialized prime packages that will be competitively bid out over the next few years. So instead of getting squeezed as some third tier sub under a mega GC, a midsize firm can actually bid as a prime on a package tailored to their exact
capability profile. Which is a game changer for midsize firms. It really is. So let's break down what those actual packages look like? I mean, what kind of scopes are we talking about here? Well, you kind of have to view the project chronologically to see the sheer volume of work. First, you have selective demolition and hazardous materials abatement right in the heart of Times Square. Oh, man. Yeah, that requires surgical precision. You have to prevent environmental hazards from affecting one of the most densely populated tourist hubs in the world. No room for error there. None. And then you hit deep foundations, where contractors will be digging into Manhattan bedrock while navigating active high -voltage subway tunnels just feet away. Wow. And you can't exactly just put up a closed for remodeling sign either. Yeah.
Where do those 8 ,000 buses go while you tear down the roof over their heads? Right. They have to go to temporary staging structures. And that brings us to one of the most complex scopes of the entire program. The staging itself is a project. The staging phase alone is a multi -million dollar prime package. You have to build temporary elevated ramps, dynamic routing systems, and passenger concourses just to facilitate the teardown of the existing terminal. Unbelievable. And then comes the transit scale vertical construction. We are talking massive structural steel packages and... MEP mechanical electrical plumbing systems that essentially power a small city. Let's put a pin in the timeline for a second because the duration of these individual scopes is what really stands out to me. According to Smart Business
Automator's market intelligence report. A single trade package on a program of this size can represent two to three years of core work. It's massive. Yeah. That completely anchors a mid -sized firm's pipeline for a decade. It creates total revenue stabilization. I mean, if you secure a structural or a staging package that covers your primary overhead for the next 36 months, your firm can scale its operations with incredible confidence. Because you aren't sweating the small stuff. Exactly. You aren't forced to chase 50 low -margin bids a year just to keep the lights on and the crews busy. Wait, OK, let me play devil's advocate here. Ten billion dollars in Times Square. I'm looking at this from the perspective of a subcontractor in Pennsylvania or Connecticut. Sure. It feels like the big five local New York legacy firms
are just going to swallow this whole. How does an out -of -town contractor even get a seat at that table? It's a fair question, but the Port Authority actually mandates a wider net. You have to remember, it is the Port Authority of New York and New Jersey, so their jurisdictional mandate is inherently regional. Oh, right. But even from a purely strategic standpoint, they require a massive pool of qualified bidders to ensure competitive pricing. Because if it's just the usual suspects... Bid prices skyrocket due to lack of competition. Exactly. They actively want national and regional firms bringing innovation to specialized scopes to drive those costs down. So they're practically begging... for out -of -state firms to bid if geography isn't the bouncer of the door keeping people out what is the actual
gatekeeper is the port authority's vendor management office and their pre -qualification process is well it's notoriously rigorous i can imagine because a default by a prime contractor on a critical package like uh deep foundations or temporary staging, that could delay the entire $10 billion program. So let's talk about the mechanics of that pre -qualification. What specific hurdles... does a contractor need to clear to get on that prime bid list? Well, first off, they scrutinize your experience modification rate, your EMR, relentlessly. It's not just a rubber stamp. Not at all. They aren't just checking a box to see if you employ a safety officer. They need to see a multi -year statistical track record of incident prevention. Right, because
an incident on a site with hundreds of thousands of pedestrians walking by isn't just your standard workers' comp claim. No, it shuts down the entire grid. And it triggers a national news cycle. And it directly compromises the owner -controlled insurance program, the OCIP RAP, that governs the liability on these mega projects. Makes sense. But beyond safety, you have to prove substantial financial runway. I mean, can your firm float the early stages of a massive mobilization? Buying specialized materials, making payroll. Exactly. Purchasing all that and paying labor for 60 to 90 days before that first requisition actually gets processed and paid. That's a huge cash flow test. Yeah. What about diversity goals? Because on a lot of private commercial jobs, MWBE participation is treated like a... You know, a good faith effort
box you check at the end of the month. On a Port Authority project, it is a strict contractual mandate. You need concrete, documented commitments to minority and women -owned business enterprise inclusion. So no coasting on that one. Absolutely not. You must prove your historical track record of actually hitting those percentages, tracking the downstream payments, and managing the compliance reporting down to the cent. Wow. If your administrative team can't handle complex certified payroll, and Tier 3 subcontractor compliance, you will not survive the pre -qualification audit. Okay, but say a firm has the pristine safety record, the bonding capacity, and the MWBE tracking down cold. But they've never actually worked directly for the Port Authority before. Right. How do they prove to the vendor management office that
they belong on a prime bid list for the world's bus terminal? You map your comparable transit experience. The reviewers understand that very few firms have built a Port Authority terminal. Because there's only one. Exactly. Exactly. But have you executed major phased work for the MTA, NJ Transit, Amtrak, the PATH system? Oh, I see. Or perhaps you've handled complex logistical phasing at a major airport terminal. So you're basically showing them you understand how to build in highly secure, highly trafficked, active environments where passenger logistics dictate the construction schedule. Precisely. You take that comparable experience and you hit the Port Authority's online vendor portal today. You begin building your prequalification file right now. Don't wait for the RFQ. Gather the reference
projects, the safety logs, the audited financials, and submit them before the competition intensifies and the vendor management office gets backlogged with hundreds of applications from reactive firms. Getting in early really is the entire game. And, you know, Smart Business Automator's market intelligence report actively tracks these mega project procurements and program management appointments specifically to give contractors advance notice to engage. Which is incredibly valuable intel. Yeah, because by the time the RFQ drops in the trade journals, your firm should already be pre -qualified and having technical conversations with the air traffic controllers at STV Turner. But, you know, securing that pre -qualification and winning the bid is thrilling, but executing a massive transit job without bleeding cash, that's a completely different
operational reality. Oh, for sure. Winning the job is the celebration, but executing it is the grind. Always is. Let's look at the upside first, though. The multiplier effect. Landing one trade package on this terminal builds a resume that opens doors to the entire regional megatransit pipeline. Oh, absolutely. You become a known, verified commodity. Right. If you perform under pressure on the 42nd Street bus terminal, you are suddenly a preferred entity for the Gateway Tunnel project. the Second Avenue subway extension, and the massive Penn Station reconstruction. You're proving you can play in the big leagues. You prove to the regional authorities that your internal operations can handle the scale. But you have to survive that scale first. I mean, winning a package like this is like stacking dominoes. If your internal back office operations
are wobbly, the sheer volume of paperwork is going to knock the whole chain over. It'll crush you. So how do growing contractors actually handle this level of complex administration without collapsing under the weight of thousands of RFIs and submittals? You really have to modernize your technological capabilities. You cannot manage a port authority package using messy whiteboards, It's a recipe for disaster. The administrative friction alone will destroy your profit margins. Let's talk mechanisms then. What does a bulletproof tech stack actually look like when you're coordinating with STV Turner on a project of this magnitude? It begins with smart document organization. On a $10 billion program, your team is dealing with thousands of pages of evolving plans, structural
permits, and MEP submittals. So you need a system that automatically tags and categorizes those files. Exactly. Because if a project manager is out on the active deck and needs to reference a specific structural steal, tolerance. They need to pull it up on a tablet instantly. They cannot spend 40 minutes calling the trailer to have an assistant dig through a physical filing cabinet. Time is the one non -renewable resource on a job site. I'd imagine keeping up with the daily logs and meeting minutes across dozens of subcontractors. is just as brutal. Oh, it's exhausting. Which is why top tier firms are utilizing AI generated daily logs and meeting summaries. Oh, wow. Think about it. When half your executive team is coordinating field logistics and the other half is sitting in procurement meetings
with the program manager, you cannot afford to have highly paid engineers wasting hours manually typing up recaps. No, you need them engineering. Right. The AI captures the audio, distills the action items, assigns the responsibilities, and distributes the documentation automatically to all stakeholders. You're completely removing the human fatigue element. And speaking of fatigue, reading through thousands of pages of dense specifications to find a single structural conflict sounds like a nightmare for any estimating or engineering team. It is, but the technology exists now to extract intelligence directly from those dense specks and drawings to catch missed items. So it's doing the cross -checking for you. Exactly. The system automatically cross -references the architectural drawings against the mechanical
specs and flags anomalies before you build them in the field. That's huge. It also allows your team to draft RFI responses using historical context. When a design engineer asks a technical question, the system pulls from your existing project documentation to formulate a highly accurate answer in seconds rather than days. In a transit environment, schedule is your lifeblood. I mean, if you miss a scheduled track outage window because an RFI took too long to answer, you might be waiting six months for the next available window. And that is where schedule risk detection becomes critical. Your back office systems must continuously review project activity, material delivery dates, and labor allocations to spot bottlenecks. Before they happen. Right. It flags that, say, a delayed structural steel delivery in week four is going
to cascade into a critical path staging delay in week 12. Giving you time to react. Allowing you to pivot operations before the delay even materializes. Let's talk about the money. Specifically, change orders. How does a firm prevent silent margin fade when STV Turner issues a complex change directive midstream? Well, you need real -time budget variance insights, and this is entirely dependent on API integration. Break that API integration down for me. Why is that specific connection the linchpin of profitability? Okay, so without API integration between your project management software in the field and your ERP, your central accounting software in the home office, you are relying on manual double data entry. is always risky very if a project manager gets an approved change order for additional
deep foundation work they update their local tracker but if they forget to manually enter that exact same data into the central accounting system your billing department is invoicing the port authority off a defunct outdated budget apis connect those systems directly The second a change order is approved on a tablet in the field, the budget updates universally across the entire company. You eliminate the administrative gap where human error usually costs contractors millions of dollars in unbilled work. Exactly. And Smart Business Automator's market intelligence report consistently points out that scaling up for these megaprojects requires reducing that exact type of manual coordination. Because it frees up your people. You have to allow your project managers to handle more financial volume
by managing the actual. physical build, not just managing data entry files. So the firms that actually walk away with the profit on these mega projects aren't necessarily the ones with the most heavy equipment or the biggest local footprint? Not at all. They are the ones with the tightest, most proactive administrative engines. The compliance work you do in the Port Authority Vendor Portal today, the APIs you integrate to protect your budgets this week, That is what dictates the capital you capture three years from now. You build the operational foundation before you bid the physical foundation. Well said. And here's something else to chew on as we wrap up this deep dive. Winning this specific bus terminal replacement isn't just about anchoring your pipeline for this decade. No, it goes much further than that. Right. Look at the environmental mandates
coming down the pipe. New York and the entire Northeast region are rapidly pushing toward fully electric transit infrastructure. It's the future. The contractor who figures out how to integrate massive charging arrays, heavy -duty electrical conduits, and green tech power grids into a bustling active terminal today, they are going to write their own ticket for every single green infrastructure mandate hitting the East Coast in the 2030s. This isn't just a bus terminal, it's the operational prototype for the next era of public works. The firm that masters this prototype leads the market tomorrow. Exactly. If you know a contractor who is looking to break into major infrastructure and transit work, send them this episode. It can be the edge they need to get on the bid list for a multi -million dollar package. Hit follow
on whatever app you're listening on so you don't miss tomorrow's Intel. And be sure to visit smartbusinessautomator .com.
