EBITDA Margin vs Gross Margin: Differences, Formulas & Use Cases

Key Takeaways

• Gross margin measures what remains after direct job costs (COGS), while EBITDA margin includes broader operating expenses and excludes interest, taxes, depreciation, and amortization. 
• Formula for EBITDA = Operating Income + Depreciation + Amortization. EBITDA Margin = EBITDA ÷ Sales Revenue × 100. Gross Margin = (Net Sales − COGS) ÷ Net Sales × 100.
• EBITDA margin helps with business comparisons, valuation, sale preparation, and strategic decisions. Gross margin helps assess pricing, direct-cost efficiency, and product or service profitability.
• Buyers value most HVAC and plumbing businesses on a multiple of EBITDA, so your EBITDA margin has a direct effect on what your business could be worth. 
• At Core Growth Group, we help service business owners Grow, Prepare, or Exit, using financial and operational insights to build stronger, more valuable businesses.

EBITDA Margin vs. Gross Margin: Understanding Business Profitability

The best way to choose between EBITDA margin and gross margin is to consider what part of the business you want to evaluate. Gross margin focuses on how much revenue remains after direct costs, while EBITDA margin looks more broadly at operating profitability. This distinction matters because the wrong metric can give an incomplete picture of how efficiently a business is performing. 

Looking at both metrics together can help owners avoid focusing on a single profitability figure while overlooking costs that affect overall performance. Gross margin can reveal pressure from direct labor, materials, or pricing, while EBITDA margin can show whether broader operating expenses are limiting profitability.

For HVAC and plumbing business owners preparing to grow or eventually sell, Core Growth Group can provide strategic guidance on improving the operational and financial areas that influence business performance and future value. This makes margin analysis a practical part of the Grow, Prepare, or Exit process.

What Is EBITDA Margin?

EBITDA stands for Earnings Before Interest, Taxes, Depreciation, and Amortization. EBITDA margin expresses a company’s EBITDA as a percentage of its revenue, making it easier to evaluate operating profitability and compare businesses with different financing structures, tax situations, and asset bases.

The EBITDA Margin Formula

The EBITDA calculation can be expressed as:

EBITDA = Operating Income (EBIT) + Depreciation + Amortization

Once EBITDA is calculated, the EBITDA margin is:

EBITDA Margin = (EBITDA ÷ Sales Revenue) × 100

What EBITDA Margin Actually Tells You

EBITDA margin provides a useful view of a company’s operating profitability as a percentage of revenue. Because it excludes interest, taxes, depreciation, and amortization, it can make comparisons between businesses easier when those expenses differ because of financing choices, tax structures, or asset ownership.

EBITDA margin also shows how efficiently your business generates earnings from its core operations. Keep in mind that EBITDA differs from net income or actual cash flow because it does not account for capital expenditures, working capital requirements, debt payments, or taxes. 

What Is Gross Margin?

Gross margin measures the percentage of revenue your business keeps after subtracting the Cost of Goods Sold (COGS). It focuses on the direct cost of delivering your services, such as technician labor, parts, and equipment, and shows how profitable your jobs are before other business expenses. 

The Gross Margin Formula

The formula is:

Gross Margin (%) = ((Net Sales − COGS) ÷ Net Sales) × 100

Where:

Gross Profit = Net Sales − COGS

Net sales are your revenue after adjustments such as discounts, refunds, and credits issued to customers. For a service business, COGS generally includes the direct costs of completing each job, such as technician labor, parts, and equipment. 

What Gross Margin Can Tell You

Gross margin shows how much of each sales dollar remains after covering direct production costs. For example, a company with a 35% gross margin retains $0.35 from every $1 of revenue after COGS.

The remaining amount can then cover other expenses, including general and administrative costs, interest, debt obligations, and other business needs. A declining gross margin may indicate rising labor or material costs, pricing pressure, or other changes in the company’s cost structure.

EBITDA Margin vs Gross Margin: The Core Differences

What Each Metric Shows

EBITDA margin and gross margin measure different layers of a company’s profitability. Gross margin focuses on profitability after direct production costs, while EBITDA margin looks at operating profitability after broader operating expenses but before interest, taxes, depreciation, and amortization.

Your income statement works from the top down. Revenue comes in at the top, and you subtract COGS (technician labor, parts, and equipment) to get gross profit. Next, you subtract operating expenses such as office salaries, dispatch, rent, and marketing. To get EBITDA, take operating profit (EBIT) and add back depreciation and amortization. 

Gross margin shows how profitable each job is on its own, while EBITDA margin shows how profitable the whole business is after running costs. 

What Each Metric Includes & Leaves Out

Gross margin only counts COGS. For an HVAC or plumbing business, that usually means technician wages, parts, equipment, and other job costs. It leaves out operating expenses such as SG&A (selling, general, and administrative costs), along with depreciation, amortization, interest, and taxes. This makes it useful for judging job-level profitability, but it says little about overall business performance.

EBITDA margin goes further. It counts operating expenses such as office and dispatch salaries, marketing, rent, and software. It leaves out interest and taxes and adds back depreciation and amortization. It also ignores capital expenditures, such as new trucks or equipment, and changes in working capital. That is why EBITDA margin measures operating profitability and should not be read as cash flow.

How Each Metric Is Expressed

Both metrics are generally expressed as percentages of revenue. Gross margin shows the percentage remaining after COGS, while EBITDA margin shows the percentage of revenue represented by EBITDA after operating expenses.

Using percentages makes these metrics easier to compare across businesses of different sizes, although they still measure different levels of profitability.

When Do You Use Each Margin?

When to Use EBITDA Margin

Comparing Companies Across Different Capital Structures

EBITDA margin can help you compare businesses with different debt levels, tax structures, or asset investments. By excluding interest, taxes, depreciation, and amortization, it gives you a more consistent way to compare your operating performance with other businesses. 

It can also serve as a benchmark when comparing a company with competitors or industry standards. Differences in EBITDA margin may highlight variations in operating efficiency, cost control, or business models.

Valuation Analysis & Investment Decisions

Buyers commonly use EBITDA when they evaluate a business for sale because it gives both sides a standard measure of operating profitability.

Many owners expect their business to be worth close to its annual revenue. In practice, most HVAC and plumbing businesses in this size range are valued on a multiple of earnings (EBITDA). Companies with around $5 million in annual revenue typically trade between 2x and 4x EBITDA. A typical baseline is around 3x, and strong year-over-year growth of 20% to 30% or more can support a 4x multiple.

Illustrative example: An HVAC company with $4,000,000 in revenue and $2,200,000 in direct job costs (technician labor, equipment, and parts) has a 45% gross margin. After $1,300,000 in operating expenses (office staff, dispatch, marketing, and rent), EBITDA is $500,000, a 12.5% EBITDA margin. At 2x to 4x EBITDA, that points to a value of roughly $1,000,000 to $2,000,000. Actual valuations depend on market conditions and each business’s details.

Industries Where EBITDA Margin Is Most Relevant

EBITDA margin applies across many industries (e.g., HVAC, plumbing) to evaluate operational efficiency and compare performance with competitors or industry benchmarks. It can be particularly useful when businesses have different capital structures or significant depreciation and amortization expenses.

Beyond valuation, EBITDA can support financial modeling, cash flow projections, budgeting, cost planning, and broader strategic decisions such as expansion. For business owners, tracking the metric over time can help reveal whether operational improvements are actually translating into stronger earnings.

When to Use Gross Margin

Assessing Job-Level Profitability

Gross margin shows how efficiently your business delivers its services. For example, if a job brings in $100 in revenue and costs $70 in COGS, its gross margin is 30%.

Track gross margin to spot changes in parts, equipment, or labor costs. Comparing gross margins across service lines can show which jobs earn stronger returns and where pricing or cost changes may be needed.

Early-Stage Business Analysis

Gross margin is especially useful while you grow, because it focuses on the relationship between sales and direct job costs and leaves out the rest of your operating structure. As you scale from $2 million to $4 million toward $10 million or more, you may spend heavily on marketing, hiring, and new crews. Your EBITDA margin can dip during that period while your gross margin stays healthy.

Tracking gross margin by service line, such as installs, repairs, and maintenance agreements, shows you whether each job is priced correctly as volume grows.

EBITDA Margin vs. Gross Margin: Comparison Table

Factor	EBITDA Margin	Gross Margin
What it measures	Operating profitability after broader operating expenses	Profitability after direct costs
Formula	EBITDA ÷ Sales Revenue × 100	(Net Sales − COGS) ÷ Net Sales × 100
Main costs considered	Operating expenses, including SG&A, salaries, and overhead	COGS, such as direct labor and materials
Key exclusions	Interest, taxes, depreciation, and amortization	Operating expenses, interest, taxes, depreciation, and amortization
Primary use	Evaluate operating performance, compare businesses, and support valuation	Assess direct-cost efficiency, pricing, and product/service profitability
Best for	Understanding broader business operations and potential sale readiness	Understanding core product or service economics
Important limitation	Not the same as net income or actual cash flow	Does not reflect broader operating expenses

*Note: How your books classify costs such as truck depreciation, owner compensation, or one-time expenses can change both margins. Work with a qualified CPA to calculate and normalize your EBITDA before you use it for valuation or sale planning. 

Improve Your Business Metrics With Core Growth Group

The best way to understand business profitability is to look at the right metrics together. Gross margin helps you understand the economics of your products or services, while EBITDA margin gives you a broader view of operating performance.

At Core Growth Group, we help HVAC and plumbing business owners across Texas evaluate where their company stands and what to improve as they Grow, Prepare, or Exit. If you are getting ready for a future sale, start with the Prepare stage. Understanding these two metrics is a practical first step toward a stronger, more valuable business. 

Frequently Asked Questions (FAQs)

Is a higher EBITDA margin always better than a higher gross margin?

Not necessarily. These metrics answer different questions, so one isn’t automatically better than the other. Gross margin helps show how efficiently a business delivers its products or services, while EBITDA margin includes overhead and operating profitability. The most useful approach is to consider both based on the business and its goals.

Can a company have a high gross margin but a low EBITDA margin?

Yes. A business can have strong gross margins while spending heavily on hiring, marketing, technology, or expansion. In that situation, the gross margin may indicate that the core offering is profitable, while the lower EBITDA margin reflects the broader costs of running and growing the business. Looking at both metrics helps explain where the company’s revenue is going.

What EBITDA margin do buyers look for in an HVAC or plumbing business?

There is no single target, because pricing, service mix, and overhead vary from one company to the next. Buyers focus on EBITDA because it drives valuation: businesses around $5 million in revenue typically trade at 2x to 4x EBITDA. A margin that holds steady or rises over several years, backed by clean financial records, tells a buyer your earnings are reliable. Compare your margin with similar service businesses and track whether it improves each year. 

What is a good gross margin for an HVAC or plumbing business?

Gross margin varies with your service mix. Installation work, repair calls, and maintenance agreements each carry different direct costs, so each produces a different margin. Rather than chasing one universal number, track your gross margin by service line over time and compare it with similar businesses to see whether your pricing keeps up with labor and parts costs. 

How can Core Growth Group help me improve my business profitability?

At Core Growth Group, we help HVAC and plumbing business owners understand where their financial and operational performance can improve. Looking at metrics such as gross margin and EBITDA margin can help identify opportunities to control costs, improve efficiency, and strengthen the business as you Grow, Prepare, or Exit.

 

*Disclaimer: This content is for informational purposes only and should not be considered business, financial, legal, or tax advice. Results vary based on market conditions and individual business circumstances. To learn more about scaling, preparing, or exiting your business, visit Core Growth Group.