How Much Do General Contractors Mark Up

Every general contractor bid includes a markup on top of raw material and labor costs, and it's one of the most misunderstood line items in a renovation budget. There's no single "correct" percentage — markup varies by region, project size, how much work is subcontracted out, and how busy the contractor is — but understanding the pieces that make it up will help you read bids intelligently and negotiate from an informed position instead of guessing.

What "markup" actually covers

Markup isn't pure profit. A GC's bid generally has to cover three separate things:

• Overhead — the cost of running the business regardless of any single job: office space or a home office, a truck and tools, insurance (general liability and workers' comp), licensing, software, and administrative time spent estimating, scheduling, and managing subs.
• Risk and contingency — a buffer for the things that go wrong on almost every renovation: hidden damage behind walls, material price swings, delays caused by inspections or weather, and subcontractors who don't show up on time.
• Profit — what's left after overhead and risk are covered, which is the actual return the contractor is working for.

In commercial construction and insurance restoration work, "overhead and profit" is often discussed as a combined line item, and it's commonly cited in the rough neighborhood of 10–20% combined in those contexts. Residential general contracting on flips and remodels tends to run higher than that once you count everything, because smaller jobs carry proportionally more overhead per dollar of work. Treat any specific percentage you read — including the ranges in this article — as a general reference point, not a rule, because actual markups genuinely vary by market and by contractor.

What drives the markup up or down

1. Self-performed vs. subcontracted work. A GC who self-performs labor (their own crew) often has different margins than one who subs out everything and marks up each sub's invoice. Marked-up sub costs are common and not automatically a red flag — the GC is taking on the liability and coordination of managing that trade.
2. Project size and complexity. Small jobs (a single bathroom, a punch-list repair) often carry a higher percentage markup because fixed costs like a permit run and a few site visits don't shrink just because the job is small. Large whole-house rehabs can sometimes see a lower percentage applied to a much bigger total dollar figure.
3. Local market conditions. In a hot market where contractors are booked out months in advance, markups and total bids tend to run higher simply because demand allows it. In a slower market, contractors may compress margins to win the job.
4. Contractor experience and reputation. An established GC with a strong track record and no shortage of referrals is under less pressure to discount than a newer contractor trying to build a portfolio.
5. How the risk is structured. Fixed-price ("lump sum") bids typically carry more built-in cushion than time-and-materials or cost-plus arrangements, because the contractor is absorbing more of the risk if something runs long.

How to read a bid instead of guessing at the markup

Rather than trying to reverse-engineer a contractor's exact percentage, focus on getting bids that are structured so you can compare them apples to apples:

1. Ask for an itemized breakdown of materials, labor, and subcontractor costs, even on a fixed-price contract. A contractor who resists giving any breakdown at all is harder to evaluate, though many GCs reasonably keep their internal margin private while still itemizing scope of work.
2. Get three bids on the same defined scope. If you give every contractor the same scope of work and finish specs, the spread between bids tells you far more than any percentage you could calculate from a single quote.
3. Clarify what's included in the price — permits, dumpster/haul-away, cleanup, and a contingency for unknowns behind walls. A lower headline number that excludes permits and disposal isn't actually the lower bid.
4. Ask how change orders are priced before you sign anything. This is where markup disputes usually surface on a live job, so knowing the rate in advance avoids arguments later.

Common mistakes investors make around contractor markup

• Assuming markup is padding. A contractor who prices too thin to survive slow months or a callback isn't doing you a favor — they're more likely to cut corners or go out of business mid-project.
• Chasing the lowest bid without checking scope. The cheapest number is frequently the cheapest because something got left out, not because that contractor is more efficient.
• Not asking about change-order pricing up front. This is the single biggest source of budget blowouts on flips, and it's entirely avoidable with one conversation before signing.
• Treating a percentage you read online as gospel for your specific market and project. Local labor costs, permitting friction, and material sourcing differ enough city to city that a national "typical markup" figure is only a starting reference.

Frequently Asked Questions

Q: Is it reasonable for a GC to mark up subcontractor invoices?
A: Yes. The GC is assuming liability for that sub's work, coordinating their schedule, and managing quality control, all of which has value. What matters is that the total bid is competitive and the scope is clear, not whether a markup line exists.

Q: Should I ask my contractor directly what their markup percentage is?
A: You can ask, but many contractors treat their margin as confidential the same way most businesses do. You'll generally get more useful information by comparing multiple itemized bids on identical scope than by pressing one contractor for a number.

Q: Does a higher markup mean a better or worse contractor?
A: Neither, on its own. Markup tells you about pricing structure, not workmanship. Check references, licensing, insurance, and past project photos before making a decision based on price alone.

Q: How much contingency should I build into my rehab budget on top of the contractor's bid?
A: Many experienced flippers add a separate contingency buffer of their own — commonly in the range of 10–20% of the total rehab budget — specifically for the unknowns that surface once walls are opened, regardless of what's already built into the contractor's price.

From our shop: The Book on Estimating Rehab Costs — listed under Real Estate Investing Books. Our shop links out to Amazon.