What does a General Contractor Do? What You Need to Know

Cover Image: Build: Northside Builders

A general contractor is the person you hire to run a home renovation or new build. They line up the plumbers, electricians, and other trades, handle permits and inspections with your town, and keep your project on budget and on schedule. That’s why it’s worth understanding what the role covers before you go hire one.

We’ve worked with hundreds of homeowners through TALD. In this article, you’ll get to know what a general contractor does, how to hire one, how to work with them, and how much your renovation ends up costing.

What a general contractor actually does

A general contractor coordinates every trade on your project and owns the overall delivery: on time, on budget, and to the quality you agreed to.

You hire the GC, and they bring the rest: the plumber, the electrician, the window installer, the tile setter, the painters, the roofers. None of them work for the contractor directly, but all of them show up because of the contractor. Their subcontractor network is bundled into the relationship. That’s the most important thing to understand about hiring one. When you sign with a contractor, you’re inheriting a team they’ve worked with for years.

In practice, “coordination” means sequencing dozens of dependencies. Plumbing rough-in has to finish before tile goes down. The electrician has to be inspected and signed off before walls can close. The window installer needs the framing crew to be done first. A good GC keeps that schedule humming and catches the small problems before they become expensive ones. A bad one is scrambling to book people, and the costs of that scrambling end up on your invoice.

What a general contractor doesn’t do

A GC builds. They don’t decide how things look. The aesthetics, the tile selection, the fixtures, the paint, the cabinet style, all of that is your call, your interior designer’s, or your architect’s.

Good builders are agnostic about style. Look at any solid contractor’s portfolio and you’ll see modern, traditional, and historic homes side by side. The nuts and bolts are similar across them. That’s a feature of the role, not a gap. The contractor’s job is to take whatever direction you’ve landed on and execute it as cleanly as possible.

Where it gets interesting is the financial split:

Builder’s territory: overall building costs (framing, labor, materials, the roof, the windows).

Designer’s territory: specific selections (the tile you fall in love with, the appliances, the light fixtures).

Knowing where that line falls saves a lot of confusion when budgets start coming together.

Build:Koulopoulos Vona and Company Custom Builders/ Photography: Jim Westphalen

A GC is your Budget Partner

A general contractor’s job goes beyond running the build. They’re also the person who turns your renovation idea into real dollar numbers, and who finds ways to make those numbers work for your budget.

There’s a part of the role homeowners often don’t see: helping you spend less without sacrificing the result. The industry calls it value engineering. A good GC walks the plans and says, “We can get the same look with a different material for a lot less.” Most homeowners never realize this conversation is even on the table.

Experienced GCs build this judgment over years on jobsites. They know which finishes look identical from three feet away, which substitutions hold up over time, and which ones look great on day one and fall apart by year three.

A good GC also gives you something simpler upfront: a real per-square-foot estimate on the first walkthrough. That’s often the moment a fantasy project turns into a real conversation.

There are two ways homeowners typically start the money conversation, and both work:

You give them a number. “My budget is $50,000.” A good contractor will tell you what fits inside that. Maybe all the bathrooms in your house. Maybe just the kitchen. They’ll size the project to your money.

You tell them the scope. “I want all the bathrooms and the kitchen, what does that cost?” They’ll spec it out, usually starting with a price per square foot.

Either way, the first number you’ll hear is per square foot. And those numbers vary a lot, both by region and by the finishes you pick. Marble countertops, quartzite, and Formica are three different worlds, and the same kitchen can cost very different amounts depending on which one you go with. There’s no national average that means anything for your specific project. The only person who can give you a real range is a local contractor who’s walked your space.

You don’t need much to start that conversation. Not a mood board. Not a Pinterest deck of finishes. What you need is shorter and more practical:

The rooms you’re touching, and roughly the square footage

How you want the space to function (an island, a bigger fridge, a skylight, a double oven)

Your appliance-level preferences, if you have them (gas vs. induction, side-by-side vs. standard fridge)

Take a kitchen renovation. You walk a contractor through your kitchen and tell them you want new counters, new cabinets, an island, and a bigger refrigerator. The questions they ask back are where the estimate gets real. Do you want to keep the sink where it is? If you have natural gas, are you keeping the stove in place? Side-by-side fridge or standard fit? Each answer moves the number, sometimes by thousands of dollars.

Build: Driftwood Studio / Photography: Raleigh Pruitt

How general contractors charge

There are two standard ways a GC will structure your contract, and the one you sign changes how much visibility you have into where the money goes.

Cost-plus

The contractor passes through every line item at cost, then adds a percentage on top. Say you’re spending $5,000 on windows. They charge that $5,000 plus their percentage, and that markup is their profit. You see every receipt. The model is transparent, and it’s flexible if scope shifts. The downside is that the total is open-ended until the project is done.

Fixed-price

The contractor commits to a lump sum. They say it’s going to cost a million dollars to build your house, you sign a contract, and from there it’s the GC’s job to manage the margin. Their profit lives inside that number. You get certainty on the total, and they absorb the risk if something runs over.

Neither model is universally better. Fixed-price suits well-defined projects where you’ve made your selections and the scope isn’t going to drift, like a kitchen renovation with clean drawings and finished spec choices. Cost-plus suits projects with more unknowns, like older homes where you don’t know what’s behind the walls, or evolving scopes where you’re still working through layout changes. The right choice depends on how locked-in your scope is and how much certainty you need on the bottom line.

Change orders and why scope discipline matters

A change order is what happens when something about the scope shifts mid-project, and they’re the single biggest reason budgets run over.

Say you’re three weeks into a kitchen renovation, walls are open, and you realize you’d like two ovens instead of the one that was specced. The contractor writes up the change, prices the difference, adds their fee on the change, and you sign off on it. That added cost goes on your invoice. Any time the scope shifts, the contract allows the contractor to charge for the cost difference plus their fee.

Change orders are standard practice across the industry, and they’re how contractors protect themselves (and you) from scope ambiguity. But they stack. Three or four change orders on a $200,000 renovation can push a budget thousands of dollars past where it started.

The way to keep them to a minimum is scope discipline before the contract is signed. Try to lock your selections and your layout while you’re still in the planning phase, not during construction. If you’re still going back and forth between two tiles, that’s a sign to take a little more time before signing. If you’re still weighing one oven versus two, same thing. The contractor’s pricing is only as accurate as the scope they’re pricing, so a tighter scope at signing is the most useful thing you can do for your budget.

Permits, inspections, and the Certificate of Occupancy

Beyond the budget and the build, your GC is also your translator with your town. They pull permits, host inspectors, and carry your project to the Certificate of Occupancy, which is the sign-off that legally lets you live in the house.

The permit chain has a few moving pieces, and knowing what they are makes the process less mysterious.

Plan stamp. The state or city’s approval that the architectural plans are structurally sound. Usually lives under the architect if you have one.

Construction permit. Always lives under the builder. They can’t break ground without it. Many municipalities also require a separate demo permit before the construction permit kicks in.

Once permits are in hand, inspections start running throughout the build. Plumbing and electrical have to be inspected and signed off before walls close, alongside the framing inspection that covers things like fire-blocking inside the wall cavities. A contractor who lets walls close on an unapproved system is creating a problem you’ll feel later. Toward the end of the project, a final round of inspections covers smoke detectors, carbon monoxide detectors, and anything else local code requires.

All of that leads to the Certificate of Occupancy (CO), which is the town’s final sign-off that the home is technically done and safe to live in. For new builds and major renovations, the CO is what makes the house legally habitable. Lenders typically require it before closing on a new construction sale.

This is also why most jurisdictions require a licensed contractor on permitted work. The license is what allows them to represent your project at town hall and pull permits in their name. If your project needs permits and your contractor isn’t licensed, the work either can’t happen or happens off the books, neither of which protects you.

Build:Art Deco Enterprises/ Photography: Ian Nelson

How a GC works with your architect and designer

Most renovations and new builds involve more than one professional. The GC, the architect, and the interior designer each have their own scope, and the order you hire them matters.

Each role has a different scope:

The GC runs the build: trades, schedule, budget, permits.

The architect designs the structure: floor plans, layout, structural changes, and stamped plans for the town.

The interior designer handles the look: tile, fixtures, paint, cabinets, finishes.

You don’t need all three on every project. Whether you need an architect depends on what your project touches:

You probably don’t need an architect if you’re not moving any walls, not relocating plumbing or gas, and not adding square footage. Gut-and-replace renovations where everything goes back where it was can usually proceed with just a licensed GC.

You definitely need an architect if you’re building from scratch, doing an addition, moving a structural wall, or relocating plumbing or electrical.

When two or three of these roles are in play, the order you hire matters. There are three common paths:

Architect-first. You hire an architect, they draw plans (typically four to eight weeks), and then bid the plans out to three to seven builders. You compare bids and pick from there. This is the design-led path, and it’s how most new builds and major additions get sequenced.

Builder-first. You bring in a contractor early to talk budget and scope. If the project turns out to need plans, the contractor pulls in an architect they’ve worked with before. This is the pragmatic, budget-led path, and it’s common for renovations.

Design-build firms. A single firm with in-house designers and contractors under one roof. Often faster, often more budget-focused. You trade some of the design flexibility you’d get from separate firms for the simplicity of one team handling everything.

If you start with a contractor and the project turns out to need an architect, a good GC will tell you on the first walkthrough: “This all looks great, but we need plans before we can price it.” Plans take roughly four to eight weeks from architect hire, so factoring that in early keeps your timeline honest.

Ready to find a general contractor on TALD?

Now that you know what a GC does, how they charge, and how they fit with the rest of your project team, the next step is finding one for your specific scope and budget. The hardest part of that search is the first round of filtering: figuring out who works at your budget, in your area, on your type of project. Typing “general contractor near me” into Google gives you a list of names. It doesn’t tell you who specializes in renovations vs. new builds, what budget level they take on, or who’s available on your timeline.

On TALD, every builder on the platform has been met with, their work reviewed, and community sentiment checked. You can filter by budget, scope, and discipline, and see that information upfront rather than discovering misalignment three emails in. It saves the round of filtering that takes the most time on every other channel.

If you’re not ready for a full project, you can also book a virtual consultation with a builder for a quick gut-check on scope, budget, or feasibility. (For the deeper tactical guide on first calls, site visits, and due diligence, see our piece on how to hire a general contractor.)

Final thoughts

Once you understand that the contractor is running your budget and your trades, the way you interview them changes. You’re hiring a financial counterpart who’ll spend months inside your house, coordinating dozens of people on your behalf. That reframing tends to be what separates the homeowners who end up happy with their renovation from the ones who don’t.

If you’re not sure where to start, browse vetted contractors on TALD, DM us on Instagram, reach out to concierge@tald.co, or book a complimentary renovation concierge call.