Published OCT 21, 2026

Profitable Plumbing Business, 60-Year Bay Area Plumbing Contractor

Santa Clara County, California

$2.8M
Revenue
$685K
SDE
3.6x
Multiple
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Full Editorial Writeup

This is a 60-year-old plumbing services business operating in Santa Clara County in the heart of the San Francisco Bay Area, one of the highest-income service markets in the country. The company delivers a full menu of residential and commercial plumbing work: general repair, drain and sewer, leak detection, repiping, and water heater repair and replacement. With 11 full-time employees and a general manager already running day-to-day operations, this is a true going concern that has survived six decades of cycles in one of the most competitive labor markets in America.

The numbers are solid: $2.75m in revenue producing $685k in cash flow, a roughly 25% owner-earnings margin that is healthy for a trades business of this size. The asking price of $2.498m against $685k of cash flow pencils to 3.64x, which is in the normal-to-slightly-rich band for home services but defensible given the brand longevity, the Bay Area demographics, and the semi-absentee structure. The business leases a 4,000 square foot facility at roughly $8,667 per month, so there is no real estate to buy and no inflated multiple from bricks and mortar.

What makes this notable is the combination of durability and operator optionality. A 1965 founding date means decades of accumulated reputation, referral networks, and repeat customers in a market where trust and license coverage (CSLB C-36) are real barriers. The seller is retiring and the business is already manager-run, so a buyer can step in as an absentee owner or roll it into an existing service platform looking to plant a flag in the Bay Area.

Why we like it

  • Earnings quality is strong for the category: $685k of cash flow on $2.75m of revenue is roughly a 25% margin, which signals disciplined pricing and labor management in an expensive market. The revenue and cash flow figures are explicitly disclosed, giving a buyer a clean starting point to verify against tax returns.
  • Durability is exceptional here. A business founded in 1965 has survived 60 years of recessions, housing crashes, and labor shortages, which is the single best proxy for a moat in the trades. The required CSLB C-36 license, coverable by an RME or RMO, adds a regulatory barrier that keeps casual competitors out.
  • Plumbing is as recession-resistant as home services gets. Burst pipes, failed water heaters, and sewer backups are non-discretionary emergencies that customers pay for regardless of the economy. Santa Clara County home values mean high ticket sizes and customers who can afford full repipes and upgrades.
  • The semi-absentee structure is a genuine operator advantage. The business is already run by a general manager with 11 full-time staff, so a buyer is acquiring a functioning org chart rather than a job. This suits a passive owner, a search fund, or a regional service company bolting on Bay Area capacity.

How to improve it

  • Install a maintenance membership program immediately. Right now revenue is transactional and event-driven, so launching an annual plan covering water heater flushes, drain checks, and priority service converts one-time callers into a recurring base and smooths cash flow. The listing itself flags expanding maintenance outreach as the obvious lever.
  • Push replacement and upgrade selling at the point of service. Technicians currently fix the immediate problem, but a structured process to quote repipes, tankless water heater conversions, and whole-home upgrades on every call raises average ticket materially. In a high-income market like Santa Clara County the willingness to pay for upgrades is there.
  • Formalize and incentivize referral relationships with realtors, property managers, and general contractors. These channels generate steady, high-margin work and the listing names strengthening referral relationships as a growth path. A simple referral fee and quarterly outreach cadence can turn ad hoc leads into a predictable pipeline.
  • Audit and modernize the digital presence and lead capture. Many 60-year-old trades businesses underinvest in Google Local Service Ads, reviews, and booking. Dialing in local SEO and paid search in a dense, affluent metro can add demand without touching the core operation.
  • Tighten dispatch and job costing with field service software if not already in place. Better scheduling, technician utilization tracking, and margin-by-job visibility typically find 3 to 5 points of margin in a shop this size. It also de-risks the transition from an absentee owner who cannot watch the field daily.
  • Lock in the general manager and key licensed staff with retention agreements before close. Since the business is manager-run and license coverage depends on an RME or RMO, continuity of that person is the whole deal. Equity or a bonus tied to post-sale performance protects the asset.
  • Expand commercial and recurring B2B accounts. Residential emergency work is lumpy, but standing relationships with property managers and small commercial sites add contracted, repeatable volume. This both grows revenue and improves the quality of earnings for a future exit.

Diligence notes

  • Confirm the CSLB C-36 license situation in detail. The listing says a buyer must cover the license via an RME or RMO, so verify who currently holds it, whether that person stays post-sale, and the exact path to maintaining licensure on day one. A lapse here shuts the business down.
  • Stress-test the semi-absentee claim and the general manager's role. Understand exactly what the GM controls, their compensation, tenure, and whether they would stay or compete. If the business truly runs without the owner, the GM is the most important asset and the biggest key-person risk.
  • Verify the $685k cash flow and reconcile add-backs to tax returns. A 25% margin is attractive but needs confirmation that owner salary, personal expenses, and one-time items are reasonable. Separately confirm whether the seller's current light involvement is already reflected in a fully loaded management cost.
  • Examine revenue concentration and the mix of residential versus commercial and emergency versus planned work. Understand customer concentration, seasonality, and how much revenue depends on marketing spend versus repeat and referral flow. This tells you how durable the top line is under new ownership.
  • Review the facility lease terms. Rent is $8,667 per month on a 4,000 square foot space, so confirm remaining term, renewal options, and escalations, since a forced relocation in the Bay Area would be costly and disruptive. Ensure the lease is assignable.
  • Assess the age, condition, and ownership of the vehicle fleet and tools. Plumbing is capital-light but trucks and equipment wear out, so quantify near-term replacement capex that could eat into the headline cash flow. Confirm what hard assets actually transfer with the sale.

Source

Originally listed on BizBuySell. View original listing →

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