General Contracting — whole rooms, additions, anything that touches three trades and a permit.

This is project management, not a Saturday. Whole rooms, additions, structural work, load-bearing walls, kitchens, bathrooms — anything complex or permitted. A general contractor coordinates the subs, pulls the permits, manages the timeline, and holds everyone accountable. Nine guides covering how to hire one, manage one, or be your own. Plus: the checklist, the scope document, the payment schedule, and the eight mistakes that haunt you.

How to use this page

Start with "How to hire a good general contractor" if you're hiring. Start with "How to be your own general contractor" if you're running the project yourself. Skim the "Toolkit" for templates and the "Common mistakes" to protect yourself before they happen. Every real link below goes to a full guide; type any project or question into the search and Iris builds it on demand.

Top 5 GC Projects, Ranked by Complexity

These five projects require a GC—either hired or playing that role yourself. Ranked by coordination difficulty, permit intensity, and what happens if something goes wrong.

1. How to hire a good general contractor

References, insurance, lien waivers, communication style—what actually separates a pro GC from a contractor with a truck and confidence. Portfolio review, three quotes, checking licenses and insurance, reference calls, the contract basics. A good GC costs 10–20% of the project budget and saves that many times over in subs coordination, permit navigation, and damage prevention.

2. How to pull a building permit

What the city actually requires, where to file, how long it takes, what the inspector is actually looking for. Permits vary wildly by jurisdiction—some are one form and $50, others are multi-step with engineering drawings. A permit is your protection: it forces code compliance, insures the work, and you can't resell without it. The guide walks through the whole sequence.

3. How to write a renovation scope of work

A scope document is the contract's spine: "build this bathroom" is a fighting word; "remove vanity, relocate drain by 18 inches, tile to code, install fixture set X" is a spec. Single-spaced, room by room, every material called out. Contractors bid from this, and it becomes your legal reference if work deviates. One page feels too short until you're 40 days in defending your position.

4. How to pay a contractor without getting burned

Progress-based draws, lien waivers, retainage, conditional release—the mechanics of money flow. Never pay the whole job up front. Typical structure is 25% down to start, 50% at the halfway point, 25% at final punch list. Require lien waivers after each payment proving subs are paid. The mechanics are simple; the psychology is hard—contractors push for front-loading, but you need leverage for walk-away work.

5. How to be your own general contractor

You pull the permit, hire the subs directly, manage the timeline, coordinate deliveries, and take the GC risk. No insurance, no contractor buffer, no one to blame but yourself. Works for renovations where you have time, patience, and builder's contacts. Doesn't work for structural, electrical, or plumbing if you don't know what you're approving. Typical DIY GC saves 10–20% of the contractor's fee but costs you 100+ hours of coordination.

Every GC guide, in one list

Twelve guides covering hiring, permits, project management, budgeting, and survival tactics. Beginner-friendly first, advanced next.

Hiring and vetting

How to hire a good general contractor — references, insurance, communication, contract terms. The non-negotiables when handing someone the keys to your house.

How to vet a contractor before signing — background check, license verification, insurance check, reference calls, site visit with three past clients. The checklist that keeps you out of court.

Permits and legal

How to pull a building permit — what cities require, where to file, timing, inspector relationships, what fails inspection. Every jurisdiction is different; this covers the universal sequence.

GC safety and permit checklist — site safety, OSHA basics, permit compliance, inspection prep, final walkthrough. The pocket checklist for every day on-site.

Planning and documentation

How to write a renovation scope of work — room-by-room specifications, material callouts, fixture details, the document contractors bid from and you defend with.

How to handle change orders — scope creep protocol, signed changes, cost impact, timeline impact. The formal way to say "I know we didn't talk about this."

Money and protection

How to pay a contractor without getting burned — draw schedule, lien waivers, retainage, conditional release. The mechanics and psychology of not losing your leverage.

How to protect yourself with a mechanic's lien waiver — conditional vs unconditional waivers, timing, what they protect, what they don't. The one-page form that saves you thousands.

DIY GC and survival

How to be your own general contractor — pulling permits yourself, hiring subs directly, timeline management, coordination cadence. When DIY GC makes sense and when it doesn't.

How to survive a six-week renovation living in the house — daily routines, dust containment, shower access, cooking constraints, mental health. The non-construction guide to living inside a project.

How to deal with a failed inspection — why inspectors fail work, how to read the violation, negotiating fixes, timeline implications. Failures are normal; understanding them is the key.

Budgeting and kitchen/bath

How to budget a kitchen renovation — cabinetry, counters, appliances, plumbing, electrical, labor, contingency. A realistic breakdown of where kitchen money goes.

How to budget a bathroom renovation — fixture costs, tile, ventilation, plumbing, electrical, contingency. Bathrooms scale from $8k to $50k; this shows you why and where.

When to DIY the GC role

You can be your own GC if you have time, patience, builder contacts, and a strong stomach for permits. You pull the permits, hire and pay the subs directly, manage the schedule, and take all the risk. A DIY GC saves 10–20% of the contractor's fee (usually $5k–$20k) but costs 100–200 hours of your time. You also lose the contractor's insurance buffer and someone to blame if it goes wrong. DIY works for: kitchen remodels where subs are familiar, additions where code is straightforward, bathrooms where finishes are the main variable. DIY doesn't work for: structural changes, load-bearing wall moves, anything electrical or plumbing beyond fixture replacement, first-time permits, sites with difficult access or neighbors, projects over $100k.

When to hire a GC

Hire a general contractor for: whole-house renovations, additions, structural work, anything load-bearing, kitchens, bathrooms, projects touching three or more trades, anything requiring permits, work where timeline is tight or money is at risk. A good GC costs 10–20% of the project budget and earns it in sub coordination, permit navigation, problem-solving, and damage prevention. You pay for peace of mind, professional insurance, and the ability to walk away if things go wrong. Renovations, additions, anything structural, anything load-bearing, kitchens, bathrooms—this is what GCs are for.

The toolkit

A good renovation runs on documents. Here's what you need: a written scope of work (room by room, every material called out, no verbal agreements), a payment schedule (typical: 25% down, 50% at halfway, 25% at final), lien waivers (conditional and unconditional—require them after each payment), a schedule of values (breakdown of the contract by phase so you know what 50% means), the punch list (final list of incomplete or defective items, usually done 2–3 days before final payment), a certificate of insurance from every sub (proof they carry general liability, minimum $1M), a copy of the permit and all amendment sheets (your protection with the city), and the rule: 10–20% of the total project budget goes to GC overhead and profit, and pretending otherwise gets you cut corners. A contractor who quotes the same price for labor as a sub is lying about what they do. The GC's 15% is coordination, timeline, subs management, sub failure recovery, and protection. It's not free money; it's insurance against disaster.

Common mistakes

Paying too much money up front. Never pay 50% to start. Contractors pressure for it; resist. Structure: 25% down (material purchase + mobilization), 50% at halfway (major systems done), 25% final (punch list cleared). Picking the lowest bid. The cheapest bid is usually the fastest way to a bad job. Check three quotes; the middle one usually wins. No written scope. Verbal agreements become fights at day 30. Write it down, sign it, reference it. No change-order process. Scope creep is the default. Every change must be signed, priced, and scheduled before work starts. Ignoring the inspector's notes. Inspectors don't fail work for fun. Read the violation, understand why, fix it right. Hiring an unlicensed sub to save 15%. The GC is liable for their work. If they get hurt, you're sued. If the work fails, you're sued. The 15% savings costs thousands. Trying to live in the house during a kitchen reno. You can't cook, shower, or sleep well for 6 weeks. Move out or live elsewhere. The money spent on a short-term rental saves your sanity.

Understanding change orders and scope creep

Scope creep is the default behavior of home renovation. The homeowner walks the site, sees possibilities, and asks "while we're at it..." Change orders are the formal mechanism to handle this. A change order must be signed, priced separately, and scheduled separately before work starts. A verbal change is a fight waiting to happen. The contractor marks up change work differently than bid work—typical markup is 20–30% on changes because they're inefficient, disruptive to the main timeline, and require material expediting. A $500 change order often costs $650 by the time you add subs, materials, and lost efficiency. Getting the change order signed and priced up front prevents surprises at final billing.

The mechanics of lien waivers

A lien waiver is a one-page form that proves subs and material suppliers are paid. Conditional waivers say "paid through date X" and protect you from later claims. Unconditional waivers say "paid in full for all work" and are final. Require conditional waivers after each progress draw, and unconditional waivers before final payment. A sub who hasn't been paid can file a mechanics lien against your house, clouding the title and preventing sale. The lien waiver is your protection. Get one after every payment, even if the sub says "don't worry about it." Especially then. See the full guide: How to protect yourself with a mechanic's lien waiver.

Contract essentials and red flags

A GC contract should specify scope (what work is included), timeline (start date, expected completion, penalties for delay), payment terms (schedule and conditions), change order process (how scope changes are handled), warranty (what the contractor guarantees and for how long), and insurance (what coverage is required). Red flags: contractor wants 100% down, refuses to put the scope in writing, won't provide references, claims they can get around permits, guarantees a price without seeing the house, offers a handshake deal instead of a contract, won't carry liability insurance. A contract protects both parties. If the GC resists signing a clear scope document, the GC is signaling that they intend to cut corners or argue about scope later. Walk away.

Managing subs directly as a DIY GC

If you're being your own GC, you hire subs directly, manage payments, and pull the permit. You'll need a permit pull guide, a sub contact network, a payment tracking system, a schedule, and a contingency plan for no-shows and delays. You're liable for their work, their safety, and their cleanup. You're responsible for coordinating sequencing so the electrician doesn't rough-in before framing is done, the plumber doesn't run drains before MEP approval, and the painter doesn't show before drywall inspection. A missed sequence means rework and delays. Most DIY GCs underestimate the coordination overhead and the time commitment. Budget 10–15 hours per week for 12 weeks. If you don't have that time, hire a GC. Full guide: How to be your own general contractor.

Budgeting for the kitchen: realistic numbers

Kitchen renovations scale from $8,000 (refresh cabinets, new appliances) to $50,000+ (full gut, custom cabinetry, premium finishes). Here's where the money goes: cabinetry (30–40% of budget), countertops (15–20%), appliances (10–15%), flooring (10–15%), plumbing and MEP (15–20%), labor (20–25%), contingency (10–15%). A typical mid-range kitchen ($30,000 budget) breaks down: cabinets $10,000, counters $5,000, appliances $4,000, flooring $3,000, MEP $3,500, labor $7,500, contingency $3,000. Kitchens feel expensive because everything—cabinets, counters, appliances, plumbing, electrical—touches the budget simultaneously. See detailed breakdown: How to budget a kitchen renovation.

Budgeting for the bathroom: tile, plumbing, finishes

Bathroom renovations scale from $5,000 (vanity, toilet, tile, paint) to $30,000+ (full gut, heated floors, custom tile, soaking tub, shower niche). Here's the breakdown: fixtures (30–40%), tile (20–25%), plumbing and electrical (15–20%), flooring (10–15%), labor (20–25%), contingency (10–15%). A typical bathroom renovation ($15,000 budget) breaks down: fixtures (tub, toilet, vanity) $5,000, tile $3,000, plumbing $2,500, flooring $1,500, electrical $1,000, labor $3,000, contingency $1,500. The most expensive element is usually the tile, especially if you're doing a large shower with niche, bench, and custom grout. See full breakdown: How to budget a bathroom renovation.

Certificate of insurance and contractor protection

Every contractor and sub should carry general liability insurance (minimum $1 million coverage). Before they start work, get a certificate of insurance proving they have it. The certificate lists you as an "additional insured," meaning if they hurt themselves or damage property, their insurance pays, not you. Without a certificate, you're liable for their injuries and damages. A contractor who refuses to provide a certificate is either uninsured or hiding something. Walk away. General liability typically costs $500–$1,200 per year for a small contractor, so the cost is built into their estimate. Asking for a certificate is standard practice; any contractor who balks is a red flag.

The inspection process: what happens and why it matters

Most residential work requires a building permit and inspections. Inspections happen at key milestones: foundation/footing (before concrete), framing (after wall framing, roof trusses), MEP rough-in (electrical, plumbing, HVAC before drywall), drywall (after drywall hung), final (after finish work). The inspector checks against code: proper structural bracing, correct wire gauge and grounding, proper venting, right materials in the right places. A failed inspection means code violation and your contractor must fix it before moving forward. The inspector is not your enemy—they enforce the code that protects your house and future buyers. An inspector who fails work is doing their job, not punishing you. Fix it and move on. Read the violation, understand the code reason, and don't argue with the city. You'll lose.

Handling failed inspections and violations

Inspectors fail work for code compliance reasons, and their job is not to help you—it's to enforce code. Common failure points are electrical (wrong gauge wire, improper grounding, too many outlets per circuit), plumbing (improper venting, wrong trap configuration, cross-connection), framing (inadequate bracing, wrong header sizing, improper tie-down), and permit (work done before permit issued, wrong scope). When you get a violation, the contractor reads it, understands the code reason, and fixes it right. Arguing with the inspector or ignoring the violation is the fastest path to a lien, a lawsuit, and unsellable house. The violation is not personal; it's code. Fix it and move on.

The payment schedule in detail

Standard GC payment structure: 25% down to begin, 50% at rough-in (major systems installed but not finished), 25% final after punch list. Some contractors push for 40% down; resist. You need leverage to fix defects, punch list items, and warranty issues. Never pay 100% before the final walkthrough. Retainage (holding back 5–10% until final) is standard in commercial work and good practice in residential too. A contractor who balks at retainage is signaling that they expect to walk away and not handle callbacks. Schedule payments to align with inspection milestones: first draw after permit issued and materials on-site, second draw after framing/MEP rough-in, final draw after final inspection passed and punch list cleared.

Sister trades and coordination

A whole renovation usually touches multiple trades. General Contracting coordinates them all, but each has its own depth. See also: Framing (structural walls, additions, load-bearing changes), Plumbing (water supply, drains, fixtures), Electrical (circuits, panels, safety), HVAC (heating, cooling, air quality), Painting (finish work, color decisions), Flooring (tile, wood, finishes), Roofing (weather protection, structure), Tile (bathrooms, kitchens, detail work).

Closing thought

General contracting is the trade of coordination. You're not swinging the hammer; you're making sure the right person with the right tool shows up at the right time, in the right sequence, and gets paid fairly only when the work is done right. A GC earns their margin in moments when things go wrong—a sub doesn't show, materials arrive damaged, the inspector fails a section, the homeowner changes their mind—and keeps the project moving anyway. That's why you hire one, and that's why you pay them. If you're your own GC, you're trading time for that fee, and you're assuming all the risk. Either way, the toolkit, the checklist, and the lien waiver are your non-negotiables. Write it down, document it, and you'll survive. Shake hands on a deal and wing it, and you'll be explaining to a lawyer why the bathroom still isn't done and you've spent $30k of the $20k budget.

Contributors on this page

Marcus Webb, trade contractor in Columbus, Ohio — writes on project pitfalls, the GC's real job, and why permits are your friend.

Dana Cole, design-forward renovations in Austin, Texas — writes on planning, scope documents, budget strategy, and kitchen/bath reality.

Ray Torres, building inspector in Phoenix, Arizona — writes on permits, code, inspection failures, and safety.

Iris (Editor's Pick) — AI/instructional on how-to sequences, toolkit tutorials, and the mechanical parts of the job.