Plumbing Business Valuation for Sale: EBITDA Multiples & Calculator

Key Takeaways

• Plumbing businesses are valued using three core multiples: SDE (1.68x–2.97x) for owner-operated shops under $1M in earnings, EBITDA (2x–4x) for established businesses with a management team, and revenue multiples (0.34x–0.66x) as a secondary sanity check.
• The formula is always the same: Value = Earnings Metric × Multiple. What changes is which earnings number you start with and which multiple range fits your business profile.
• Calculating your number takes three steps: clean up your SDE or EBITDA with the right add-backs, apply the appropriate multiple range for your size and buyer profile, then adjust for business-specific factors.
• Recurring service contracts, a self-running team, clean financials, and a diversified customer base push you toward the top. Heavy owner reliance, lumpy earnings, and customer concentration push you toward the bottom or make the business hard to sell.
• Knowing your business valuation is only the starting point. At Core Growth Group, we work with HVAC and plumbing owners to either grow toward a higher valuation, prepare the business for a clean sale, or exit directly to a strategic operator-buyer.

Thinking of Valuing Your Plumbing Business for Sale? Start Here

The U.S. plumbing industry generates roughly $169.8 billion in annual revenue and shows no signs of slowing, which is why buyers are actively seeking established companies with proven revenue and skilled crews. If you own one, the natural next question is what it’s actually worth.

Plumbing businesses are priced using one of three earnings multiples, and which one applies depends on your size and structure. Owner-operated shops earning under $1M are valued at roughly 1.68x to 2.97x of Seller’s Discretionary Earnings (SDE). 

Larger businesses with a real management team are valued on EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) at 2x to 4x, with a typical baseline around 3x and the upper end reserved for companies showing strong 20–30%+ year-over-year growth. Revenue multiples (0.34x to 0.66x) serve as a sanity check rather than a primary figure.

Valuation Multiples Used to Price a Plumbing Business

Valuation multiples are the core pricing mechanism in any plumbing business sale. The three metrics most commonly used are Seller’s Discretionary Earnings (SDE), EBITDA, and Revenue. Which one applies to your business largely depends on your size and the sophistication of your financial reporting.

SDE Multiples

Seller’s Discretionary Earnings (SDE) is the most commonly used metric for plumbing businesses generating under $1 million in annual earnings. SDE starts with net profit and adds back the owner’s salary, personal benefits, one-time expenses, and non-cash charges like depreciation. 

The result is a number that reflects the full economic benefit a single working owner derives from the business. Average SDE multiples for plumbing businesses range from 1.68x to 2.97x, meaning a business with $300,000 in SDE could be valued between roughly $504,000 and $891,000, depending on business-specific factors.

EBITDA Multiples

EBITDA multiples for plumbing businesses typically range from 2x to 4x, with a baseline around 3x for established companies with stable earnings and a functioning management team. Companies showing strong 20–30%+ year-over-year growth, recurring revenue, and low owner dependency can push toward the top of that 4x range in competitive sale processes.

Multiples above 4x are uncommon in this segment and generally require an exceptional growth story, significant recurring contract revenue, or strategic-buyer demand that exceeds typical market conditions.

Revenue Multiples

Revenue multiples, typically ranging from 0.34x to 0.66x, are applied in specific situations where earnings-based metrics are less reliable. This might include startups with thin margins, businesses with inconsistent profitability, or cases where a buyer is primarily acquiring the customer base and brand rather than cash flow. 

Revenue multiples are a blunter tool, but they provide a useful sanity check when layered alongside SDE or EBITDA figures during a full appraisal.

Which Multiple Should You Use for Your Business?

It depends on your size, your financial documentation, and the type of buyer you’re targeting. As a general rule, smaller owner-operated plumbing businesses are valued on SDE, while businesses with $1M+ in EBITDA and management infrastructure are valued on EBITDA. Revenue multiples serve as a secondary check, not a primary valuation method.

Business Profile	Recommended Metric	Typical Multiple Range
Owner-operated, under $1M earnings	SDE	1.68x – 2.97x
Established with management team, $1M+ EBITDA	EBITDA	2x – 4x (baseline ~3x)
High-performing with 20–30%+ YoY growth and recurring contracts	EBITDA (upper range)	Slightly above 4x
Inconsistent earnings or startup phase	Revenue	0.34x – 0.66x

How to Calculate Your Plumbing Business Value

The formula is always the same: Value = Earnings Metric × Multiple. What changes is which earnings figure you plug in and which multiple range applies to your specific business profile.

• Calculate Your SDE or EBITDA: Start with your net profit from the most recent full year of tax returns or financial statements. If you’re calculating SDE, add back your owner’s salary, personal vehicle expenses, health insurance premiums, one-time legal or consulting fees, and non-cash charges like depreciation and amortization. If you’re calculating EBITDA, add back interest, taxes, depreciation, and amortization, but do not add back owner salary if a replacement manager would need to be hired. 

• Apply the Right Multiple Range: Once you have your earnings figure, apply the appropriate multiple range based on your business size and buyer profile. A plumbing business with $400,000 in SDE at a 2.0x multiple is worth $800,000. That same business at 2.5x is worth $1,000,000.

• Adjust for Business-Specific Factors: Raw multiples represent the midpoint of what the market has paid across a wide range of transactions. Your actual multiple will sit somewhere within the range based on qualitative factors: how dependent the business is on you personally, if you have recurring maintenance contracts, how concentrated your customer base is, and the condition of your equipment and vehicles. 

A business that scores well across all these dimensions commands a multiple toward the top of the range. One with red flags gets priced toward the bottom or struggles to sell at all.

Prepare Your Plumbing Business for Sale with Core Growth Group

Knowing what your plumbing business is worth is the foundation for every decision that follows, and the multiples in this article provide a starting range. The real work of moving toward the top of that range involves cleaning up financials, building a team that runs without you, layering in recurring revenue, and reducing owner dependency. That is where Core Growth Group comes in. 

Founded by Clint, an operator-buyer, Core Growth Group acquires plumbing service businesses directly across Dallas-Fort Worth, Houston, Austin, and San Antonio, with no broker or private equity firm in the middle. For owners who aren’t ready to sell yet, we offer high-level strategy consulting to help you stress-test the business and maximize valuation well before any sale conversation begins. 

Start the conversation with Core Growth Group.

Frequently Asked Questions (FAQs)

What is a good EBITDA multiple for a plumbing business?

A good EBITDA multiple for a plumbing business ranges from 2x to 4x, with a typical baseline around 3x for established companies with stable earnings and a functioning management team. However, what qualifies as “good” ultimately depends on your size, profitability trend, and how the business is structured.

How do I calculate the value of my plumbing business?

Start by identifying your SDE or EBITDA using the most recent 12 months of financial statements. Add back owner compensation, personal expenses run through the business, one-time costs, and non-cash items like depreciation. Once you have a clean earnings figure, apply the appropriate multiple range for your business size and profile using the table in the earlier section of this article. The resulting number is your estimated fair market value, before adjusting for business-specific risk factors, deal structure, and current market conditions.

Does a plumbing business with service contracts sell for more?

Yes. Recurring service contracts are one of the clearest value drivers in any plumbing business sale because they reduce the revenue uncertainty buyers perceive when making an acquisition decision. A business where 40–50% of annual revenue comes from contracted or recurring sources is fundamentally less risky than a business of the same size built entirely on reactive, one-off calls. That reduced risk translates directly into a buyer’s willingness to apply a higher multiple to your earnings.

What is the difference between SDE and EBITDA for a plumbing business?

SDE (Seller’s Discretionary Earnings) is used for smaller, owner-operated plumbing businesses. It represents the total financial benefit the current owner receives from the business and assumes a single working owner will replace them post-sale. EBITDA, by contrast, is used for larger businesses where a professional manager would run operations after the sale.

Does Core Growth Group help plumbing owners understand their business value before a sale? 

Yes. Through our high-level strategy consulting at Core Growth Group, we help plumbing owners review financials, identify the add-backs and value drivers buyers actually weigh, and stress-test the business well before a sale conversation begins. For qualified plumbing companies, our Founder, Clint, can also engage directly as a strategic operator-buyer, so the right deals can move forward without a broker listing in the middle.

 

*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.