Buying a plumbing company: underwrite the operation before the offer

What kind of plumbing business can you operate well?

Set your buying plan before reviewing listings. Define location, service mix, size, your role, and the capital you can risk. A master plumber buying a shop to run has different needs from a regional firm adding a branch. Knowing the trade does not remove the need to review the business.

Residential repair, commercial maintenance, construction, and drain work have different needs. Compare schedules, equipment, customer ties, and payment cycles. Construction backlog may need more cash and project oversight than demand service. A drain specialist may use costly equipment and safety routines your team has never managed. Check the actual work mix.

List the skills you lack. If you cannot supervise technical work, recruit a capable service manager. If you cannot replace the seller's sales work, budget for someone who can. Name the problems you can solve and those you cannot accept. Written limits help keep a promising listing from changing your investment case.

How do you distinguish reported profit from usable cash flow?

Start with monthly statements, tax returns, bank activity, and job reports. Reconcile sales, refunds, payroll, materials, card fees, and deposits. Review unpaid invoices by customer and service line. Reported profit may look sound while builder bills remain unpaid. Membership visits may also require labor already promised to customers without a new payment.

Acquisition cash flow is cash the business can generate for its new owner under the purchase model. It follows operating costs, investment needs, and assumed obligations. It differs from the seller's profit, EBITDA, or bank balance. Use the Four-Number Plumbing Valuation Screen to keep those measures and assumptions separate.

Consider a hypothetical company reporting $420,000 of owner benefit. Assume the buyer needs a $115,000 manager and $35,000 of annual fleet replacement. That leaves $270,000 before debt payments, taxes, and working-capital changes. With $210,000 of annual acquisition debt payments, $60,000 remains before those other uses. These assumed inputs test price and financing together.

Which diligence requests reveal the most risk?

Tie requests to decisions. Explain what each record would confirm and what an adverse finding would change. Start with earnings, lawful operation, people, demand, and liabilities. Expand review when the evidence shows a specific exposure. Gathering files alone does not establish that the buyer has resolved the risks those files describe.

For subcontracted crews, review how the relationship works. IRS worker guidance covers federal employment-tax factors. State employment law may use other tests. A contractor agreement alone does not settle status. Ask advisers to assess actual practices, unpaid exposures, and the buyer's planned employment model before treating labor cost as sustainable.

How do you verify licensing and technical continuity?

Make a license schedule for every place the company contracts or works. List entity, license holder, authority, scope, renewal date, and known discipline or complaints. Match it to permits and actual services. A service on the website does not prove authority to perform it. Resolve gaps using the relevant official records.

The Texas responsible-master page shows why person and company relationships matter there. Other states and localities use different rules. Ask the relevant authority how the proposed ownership change affects this operation. Obtain counsel's help where needed. Keep that finding separate from the parties' preferred plan or a seller's assurance.

Use the License Continuity Map to track approvals needed before closing and later duties. Document the qualifying person's required work and relationship. A willingness to lend a license is insufficient. Check that the arrangement meets the actual rules and has a supported plan for the person's expected departure or replacement.

What does acquisition financing need to cover?

Build the full project budget: price, fees, starting inventory, operating cash, equipment, and handoff costs. Identify lender-funded items and those paid by the buyer. Separate existing company working capital from new cash put into the deal. Read the agreement's treatment of both. The purchase price alone does not describe the funds needed.

The SBA 7(a) program supports eligible ownership changes. A single loan has a $5 million maximum. That is not a promise to fund the full project. Review equity, repayment, eligibility, collateral, and other conditions with a participating lender. An affordable payment estimate does not establish program or lender approval.

The SBA SOP index identifies version 8.1, effective October 1, 2026. Deal category and purchase price can affect required records and review. Obtain the lender's written assessment under current policy. An older online summary of down payments or seller notes may not apply to this proposed acquisition and structure.

How should diligence change the offer and agreement?

Classify each finding before changing price. A recurring cost affects earnings. Deferred truck replacement affects investment needs. Uncertain tax exposure may need protection. Missing license approval may stop the deal. Each calls for a different response. A lower price does not by itself resolve the buyer's inability to operate or complete required approvals.

1. Establish the issue with source records and the seller's explanation.
2. Quantify the reasonably supported financial effect where possible.
3. Determine whether it belongs in price, working capital, a condition, an indemnity, or the transition plan.
4. Test whether the buyer can operate successfully after the proposed remedy.
5. Have counsel document the allocation and identify unresolved assumptions.

Use the Plumbing Deal Proceeds Bridge to compare structures with the seller. It separates value, payment timing, and adjustments. Make the proposed remedy clear to both parties. Do not pay twice for forecast savings or treat unverified growth as existing profit. Preserve a meaningful ability to decline closing if a fundamental dependency remains unresolved.

What should happen during the first ninety days?

Plan the handoff while seller and key staff are available. Record dispatch access, phone rights, card processing, payroll, purchasing, vehicle insurance, permit contacts, and open jobs. Confirm who can sign and act on day one. Keep unresolved customer promises and warranty cases in writing, with owners responsible for resolution under the agreed terms.

Include safety review, especially for sewer and excavation work. OSHA trenching resources help identify hazards and duties. Request actual training, incident, and procedure records. Discuss the evidence with the relevant reviewer. A clean fleet photo does not show field practices or establish that the planned crews can perform the work safely.

The 90-Day Transfer Plan puts daily continuity before broad system changes. Review jobs, receipts, staff, complaints, and license or permit issues. Change pricing or software when the team can explain the service and reporting effects. The first quarter should protect the capacity on which the acquisition case depends, using the same baseline.

Record the seller's remaining duties and when each ends. Test whether another person can solve the same issue with transferred records. That exercise can expose gaps hidden by a reassuring closing presentation. Assign the missing training, access, or record to a responsible person. Recheck it before calling that part of the handoff complete.