Construction Profit Margin: Gross vs. Net and What's Normal

A contractor can finish a job with a 30% gross profit margin and end the year keeping just 6% of revenue. That’s close to what the National Association of Home Builders (NAHB) found among residential remodelers in 2024: a 29.9% gross margin, 23.6% in operating expenses, and 6.3% net profit.

On $100,000 in revenue, those percentages work out to $29,900 in gross profit and $6,300 left after operating expenses.

Those are remodeling averages, not targets for every contractor. CFMA’s 2024 data puts specialty trades at 7.7% pretax net margin and heavy construction at 8.3%.

Your construction profit margin depends on the work you’re taking, the costs you’re carrying, and how much of the money coming in survives the bills going out.

What Is a Construction Profit Margin?

Construction profit margin is the percentage of revenue left after subtracting costs. Gross profit margin measures what’s left after the cost of doing the work, including labor, materials, and subcontractors. Net profit margin measures what’s left after the business pays its remaining expenses.

The formulas are:

Gross Profit Margin = (Revenue − Cost of Sales) ÷ Revenue × 100

Net Profit Margin = Net Profit ÷ Revenue × 100

Take a construction company bringing in $500,000 a year.

Fictional example. The calculation assumes all applicable expenses and taxes have been accounted for.

The company made $150,000 in gross profit. After office expenses, insurance, administration, and everything else, it kept $30,000.

That’s normal. Gross profit pays the costs of keeping the business running.

Which Costs Go Into Gross and Net Profit?

For a construction contractor, cost of sales generally includes the labor, materials, subcontractors, and equipment expenses needed to complete the work.

Operating expenses include costs such as office administration, marketing, and general business insurance. Some construction businesses also put indirect field costs here, while others count them in cost of sales.

Owner pay can sit in different places, too. Wages for hands-on job work can be included in labor costs, while management compensation can be recorded as overhead. Owner draws from equity are handled separately.

Keep those classifications consistent. Moving an expense between cost of sales and overhead changes the reported gross margin, even though the total business expense stays the same.

When comparing net margins, also check the tax basis. CFMA reports net income before income taxes, while NAHB’s public remodeling summary doesn’t specify the tax treatment of its net figure.

Profit Margin vs. Markup

Markup and margin use different denominators.

If a job costs $10,000 and sells for $12,500, the $2,500 difference is a 25% markup on cost but a 20% margin on the selling price.

That’s the distinction behind a lot of pricing mistakes. Our contractor markup guide covers the full calculation, including how to account for overhead when setting a selling price.

What Is the Average Construction Profit Margin?

NAHB and the Construction Financial Management Association (CFMA) publish useful profit benchmarks. The results vary by trade, company size, and accounting method.

Residential Remodeling Profit Margins

NAHB’s 2026 Remodelers’ Cost of Doing Business Study reported these averages from fiscal 2024:

Source: NAHB, Remodelers Saw Profit Margin Gains in 2024, April 8, 2026.

The 6.3% net margin was the highest NAHB had recorded for remodelers since 1996. It was 4.7% in 2021 and 5.2% in 2018.

Trade contractor costs played a part. NAHB found that those costs fell from 36% of remodeling revenue in 2021 to 30% in 2024, helping improve gross profit.

A remodeler earning a 5% net margin is therefore comparing against a particularly strong year when looking at the 2024 figure.

Profit Margins Across the Construction Industry

CFMA’s 2025 Construction Financial Benchmarker analyzed fiscal 2024 financial results from 1,558 construction companies after screening the submitted data.

The participating companies reported a 6.7% net income before tax margin, up from 6.3% in 2023.

CFMA also identified a group it calls Best in Class, selected from the top 25% of participating firms using a combination of profitability, returns, efficiency, and productivity. Those companies reported a 12.0% pretax net margin.

That’s a useful comparison between the broader sample and stronger-performing companies. It doesn’t mean 12% is the margin every contractor should aim for. A contractor with four employees and a regional general contractor running several hundred jobs have different costs and demands on their money.

CFMA explicitly cautions that its survey isn’t a statistically valid representation of the entire construction industry. The figures describe participating companies, with results that differ by size and type of work.

Source: CFMA, 2025 Construction Financial Benchmarker Executive Summary.

Construction Profit Margin by Contractor Type

A commercial GC, a specialty subcontractor, and a highway contractor can all finish the year profitable with substantially different margins.

CFMA’s fiscal 2024 results show how margins differ by type of contractor.

Net income before tax margins from CFMA’s 2025 Financial Benchmarker, using fiscal 2024 data.

The specialty trade category includes electrical, plumbing, and HVAC contractors, along with other trades. Industrial and nonresidential firms concentrate on commercial building work. Heavy construction includes highway and civil projects.

These figures describe different types of construction businesses. A residential electrical shop has a different cost structure from a commercial general contractor, even when both are profitable. Compare your results with companies doing similar work, using consistent cost classifications.

Gross Margin Can Tell a Different Story

CFMA’s specialty trade data reported direct costs of 74.2% of revenue and indirect costs of 3.5%. After those costs, the reported gross profit margin was 22.4%, with net income before tax at 7.7%.

Compare that with NAHB’s 2024 residential remodeling results: 29.9% gross margin and 6.3% net margin.

The remodelers had a higher reported gross margin, but a lower reported net margin. Their operating expenses absorbed a much larger share of revenue.

The two surveys classify costs differently, so the gross margins aren’t measured on an identical basis. That’s exactly why a contractor should check which expenses sit above and below gross profit before comparing percentages.

Home Builders vs. Remodelers

NAHB’s separate studies of single-family home builders and residential remodelers offer another useful comparison.

Sources: NAHB, Builders’ Profit Margins Improved in 2023 and Remodelers Saw Profit Margin Gains in 2024.

Builders spent a larger share of revenue on cost of sales, including land and indirect construction expenses. Remodelers counted indirect construction expenses among operating costs.

The builders ended with an 8.7% net margin against the remodelers’ 6.3%, despite having a considerably lower reported gross margin.

Both surveys captured unusually profitable years. The builders’ 8.7% net margin was the highest in that survey’s recent history, and NAHB expected pressure from incentives and home price cuts to reduce the figure in 2024. The remodeling result was the strongest since 1996.

These figures come from different fiscal years and business populations. They illustrate cost structure rather than establish which type of construction business earns more.

Same Price, Different Cost Structure

Two contractors each sell a $50,000 job.

One paints a large residential property using its own crew. The other handles excavation work requiring expensive equipment and outside operators.

Their expenses look different.

Fictional example. The remaining expense amounts are assumed allocations covering all other applicable costs, including taxes.

The painter started with $5,000 more in gross profit. After the remaining expenses, the excavation job finished $1,000 ahead.

The excavator had a lower gross margin but also carried fewer remaining expenses in this example. The job’s equipment and subcontractor costs were already included in its direct expenses.

The numbers would change if the excavator owned its equipment, carried heavy loan payments, or had a larger shop to maintain. The same goes for a painter with an office, several trucks, and a dedicated estimator.

When you’re comparing completed work, keep the job types and accounting treatment consistent. Put a bathroom remodel beside other bathroom remodels before comparing it with a whole-house renovation.

Why a Profitable Construction Job Can Leave No Money Behind

A contractor bids a residential renovation at $40,000.

The estimated direct costs are $28,000, leaving $12,000 in gross profit. That’s a 30% gross margin.

The crew runs over its labor allowance. Materials cost more than estimated, and an extra subcontractor visit pushes the final bill higher. By completion, direct costs have reached $32,000.

Fictional example. Allocated overhead is held constant to show the effect of the direct cost overrun.

Four thousand dollars of extra costs wiped out the profit the contractor expected after allocated overhead.

Gone.

On a fixed-price job where the contract gives you no basis to charge the customer for those overruns, the business absorbs the difference. The crew still has to be paid, and the supplier still wants its money.

If the same problem keeps happening, pull the labor records. A crew regularly taking 100 hours for work estimated at 80 needs a revised allowance, better production planning, or both.

Our construction labor cost guide covers wages, employer burden, and actual hours.

The $8,000 overhead allocation is also a planning figure. Whether the company covers its actual annual overhead depends on the total work completed and the costs it incurs across those jobs.

How to Track and Improve Construction Profit Margins

Start with the jobs you’ve finished.

Check what you expected to earn, what you actually earned, and which costs changed. A repeated labor overrun calls for a different fix from missing equipment expenses or overhead that’s eating up too much of the company’s gross profit.

Check the Margin Before the Job Closes

Say you have a $30,000 contract with $21,000 in estimated direct costs. The projected gross profit is $9,000, giving you a 30% margin.

Halfway through, you’ve already spent $13,000. The remaining labor, materials, and subcontractor commitments are expected to cost another $11,000.

The updated forecast looks like this:

There’s still work to finish, and the margin has already dropped by ten percentage points.

Check the remaining labor hours and material orders before they become another surprise on the final job report.

Compare Similar Jobs

Pull several completed jobs of the same type.

For bathroom remodels, compare labor allowances for demolition, rough-in, waterproofing, and finishing. If the crew keeps exceeding the waterproofing hours, update the production estimate and check whether the site conditions were accounted for.

Overhead deserves its own review. Make sure the costs recovered through job pricing cover what the business actually spends, without counting the same expense twice. Our contractor overhead allocation guide explains the calculation.

Keep Job Costs in One Place

If labor hours are on paper timesheets, material receipts are in the truck, and subcontractor bills are in email, checking a job’s margin takes more digging than it should.

Cinderblock’s Job Performance features help contractors keep job costs together, including labor, materials, purchase orders, and manually entered expenses. Job costing is available on the Build plan.

For a new estimate, the free Job Pricing Calculator helps calculate a selling price from costs, allocated overhead, and a target margin. The Markup & Margin Calculator converts between markup and margin when you need to check your pricing.