How to Price Remodeling Jobs: Cost-Plus vs Fixed Price vs Time and Materials
Pricing is where most new remodeling contractors bleed money — and most don't figure out why until they've done a dozen unprofitable jobs. The contract structure you choose (cost-plus, fixed price, or time and materials) shapes your risk, your cash flow, and your client relationships. This guide breaks down each model with real numbers so you can price confidently from your very first estimate.
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The Quick Answer
For most residential remodeling jobs, a fixed-price contract with a defined scope is the gold standard for homeowners — it builds trust and reduces conflict. Use cost-plus (cost + 15–25% margin) for complex, undefined-scope projects like full home renovations where unknowns are high. Use time and materials (T&M) only for small punch-list jobs or when a client specifically requests it and you have strong documentation. Whichever model you use, apply a 10–15% contingency for unforeseen conditions and make sure your overhead markup covers actual business costs — not just a guess.
Fixed-Price Contracts: Pros, Cons, and When to Use Them
A fixed-price (lump sum) contract specifies a defined scope of work for a set total price. The homeowner knows exactly what they'll pay; you take on the risk of any cost overruns. Fixed-price contracts are the preferred choice for well-defined projects: a kitchen remodel with a finalized design, selected materials, and clear specifications. Pros: clients prefer them because they eliminate budget anxiety; you can earn above your markup if you execute efficiently. Cons: scope creep kills your margin — if the client adds even one change without a written change order, you absorb the cost. A rigorous change order process is non-negotiable with fixed-price contracts. Price fixed-price jobs at your full cost (labor + materials + subcontractors) multiplied by your markup (1.20–1.30 for a 17–23% margin), plus a 10–15% contingency built into your estimate, not disclosed to the client as a separate line item.
Cost-Plus Contracts: Best for Complex or Uncertain Scope
In a cost-plus contract, you charge the actual cost of labor, materials, and subcontractors, plus an agreed percentage or fixed fee for overhead and profit. Common structures: cost + 15% (cost-plus percentage) or cost + $12,000 fixed fee (cost-plus fixed fee). Cost-plus is ideal for whole-home renovations, historic restorations, or any project where the scope can't be fully defined upfront — for example, a 1920s Craftsman bungalow where you don't know what's behind the walls until demo. Pros: you never absorb unforeseen costs; clients pay actual costs so there's full transparency. Cons: some clients distrust cost-plus because they fear runaway costs; you must provide detailed cost tracking and reporting. Require a not-to-exceed (NTE) cap that protects the client and maintains trust. Most experienced remodelers use cost-plus for jobs over $150,000 or for whole-home projects.
Calculating Your Overhead Markup and Labor Burden Rate
Your markup must cover more than just your time. Calculate your true overhead: vehicle payments and insurance ($800–$1,500/month), business insurance ($200–$600/month), software subscriptions ($200–$500/month), office/admin ($500–$1,500/month), marketing ($500–$2,000/month), licensing and continuing education ($100–$300/month), and owner's salary if you work on-site. Total monthly overhead divided by your monthly billable hours or job volume gives you your overhead per dollar of direct cost. Typical residential remodeling overhead rates run 15–25% of direct costs. On top of overhead, add your desired profit margin — typically 10–15% net. Combined, your markup on direct costs is 25–40%. Your labor burden rate includes your own wage plus payroll taxes (7.65% FICA employer share), workers' comp insurance (8–20% of wages in construction), health insurance, and any paid time off. For a $30/hour carpenter, the true labor burden cost is typically $42–$52/hour — price to that number, not the bare wage.
Why a 10–15% Contingency Is Non-Negotiable
Unforeseen conditions are not 'bad luck' in remodeling — they are statistical certainty. Open a wall in a 1970s kitchen and you'll likely find inadequate wiring, asbestos-wrapped pipe insulation, or a non-load-bearing wall that was load-bearing. Open a bathroom floor and you might find subfloor rot, old galvanized drain lines, or a failed wax ring that's been leaking for years. These discoveries add real cost: re-routing an electrical panel runs $800–$3,000; subfloor repair costs $15–$25 per square foot; asbestos abatement runs $1,500–$5,000 for a small area. Build a 10–15% contingency into your estimate. On a $60,000 kitchen remodel, that's $6,000–$9,000 held in reserve. If you don't use it, you earned a better-than-projected margin. If you do use it — and on half your jobs, you will — you're covered without a difficult client conversation.
Presenting Your Price to Win the Job
How you present your price matters as much as the number itself. Never email a quote without walking the client through it on a call or in person. Break your estimate into logical line items — demo, framing/structural, plumbing, electrical, tile/flooring, cabinetry, countertops, paint, fixtures/hardware, project management — so the client understands where their money goes. Avoid lump-sum proposals on large jobs ($50K+) without any breakdown; homeowners feel vulnerable and shop price rather than quality. Show your material selection process, your subcontractor vetting standards, and your project management approach. Clients who understand your process pay for your value — not the lowest bid. Target a close rate of 20–35% on qualified leads; if you're closing more than 50% of estimates, your prices are likely too low.
RECOMMENDED TOOLS
Buildertrend
Create detailed estimates, manage change orders, and track actual vs. budget costs in real time. Purpose-built for remodeling contractors.
QuickBooks Online
Track job costs, overhead allocation, and profitability by project. Integrates with Buildertrend for seamless financial management.
ZenBusiness
Form your LLC before signing your first fixed-price contract. Personal liability protection is essential when you're pricing large jobs.
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FREQUENTLY ASKED QUESTIONS
What is a reasonable profit margin for a remodeling contractor?
Most residential remodeling contractors target 15–25% gross margin (revenue minus direct job costs) and 8–15% net margin after overhead. On a $60,000 kitchen remodel, a 20% gross margin yields $12,000 gross profit, with $6,000–$8,000 remaining as net profit after overhead allocation.
Should I use cost-plus or fixed-price for a kitchen remodel?
Use fixed-price for kitchen remodels with a finalized design and selected materials — clients prefer the certainty. Use cost-plus if you're doing a gut remodel in an older home where the scope will evolve as you open walls. In either case, use a written change order process for any additions to scope.
How do I calculate my labor burden rate as a contractor?
Start with your worker's (or your own) base wage per hour. Add: FICA employer taxes (7.65%), workers' comp insurance (8–20% of wages in construction), general liability allocation, and any benefits. A $30/hour carpenter typically costs $42–$52/hour fully burdened. Price your bids to the burdened rate, not the bare wage.