Know exactly what to verify before acquiring a concrete or masonry contractor — from signed backlog and equipment condition to foreman retention and bonding capacity.
Acquiring a concrete or masonry contracting business requires a disciplined review process built around the realities of project-based construction work. Revenue recognition is inconsistent, equipment depreciates fast, and key-man risk is endemic in owner-operated shops. This checklist covers the five highest-leverage due diligence categories for lower middle market concrete and masonry acquisitions in the $1M–$5M revenue range — giving you a structured framework to confirm value, surface liabilities, and negotiate with confidence before signing a purchase agreement.
Verify the quality and enforceability of the seller's forward revenue to assess real business transferability.
Request a signed contract backlog report with project names, values, start dates, and expected margins.
Signed contracts are transferable value; verbal GC commitments disappear when the owner exits.
Red flag: More than 50% of backlog is based on verbal commitments or handshake agreements with GC relationships.
Confirm whether contracts are assignable to a new owner without client consent requirements.
Non-assignable contracts can evaporate at close, eliminating projected post-acquisition revenue.
Red flag: Key commercial contracts contain owner-specific performance clauses or personal guarantee provisions.
Review historical bid-to-win ratios and average project size over the past three years.
Declining win rates signal pricing pressure, estimating problems, or weakening GC relationships.
Red flag: Win rate has dropped more than 15 percentage points in the last 18 months without explanation.
Identify the top five project sources and whether they are repeat clients or one-time engagements.
Repeat commercial clients with multi-project histories indicate pipeline durability beyond the owner.
Red flag: Pipeline is dominated by one general contractor or developer representing more than 40% of backlog.
Evaluate owned equipment condition, maintenance history, and replacement cost exposure before finalizing asset schedules.
Obtain a complete equipment list with purchase dates, hours, and current fair market values.
Equipment is often the largest asset class in the deal and heavily influences purchase price allocation.
Red flag: Seller cannot produce purchase records or maintenance logs for major equipment over $25,000 in value.
Commission an independent equipment appraisal from a certified heavy equipment appraiser.
Seller valuations routinely overstate equipment value; deferred maintenance creates hidden capital liabilities.
Red flag: Appraised value comes in more than 20% below seller's stated equipment value on the asset schedule.
Inspect concrete mixers, pump trucks, finishing equipment, and lifts for mechanical condition.
Failed equipment mid-project exposes the new owner to costly delays, penalties, and customer churn.
Red flag: Multiple units show deferred maintenance, cracked frames, hydraulic issues, or expired certifications.
Confirm lien status and financing balances on all titled equipment included in the transaction.
Undisclosed equipment loans reduce net asset value and can complicate SBA loan collateral requirements.
Red flag: Equipment carries undisclosed UCC liens or balances not reflected in the seller's financial statements.
Validate three years of financial performance and confirm revenue recognition practices align with project completion.
Review three years of tax returns, P&Ls, and job cost reports reconciled to individual projects.
Project-based businesses often recognize revenue incorrectly; job costing exposes true gross margin by work type.
Red flag: Tax returns and P&Ls show material inconsistencies in revenue or gross margin that the seller cannot explain.
Identify and document all personal expense add-backs with supporting invoices or receipts.
Unverified add-backs inflate SDE and distort the purchase price if not substantiated during due diligence.
Red flag: Add-backs exceed 15% of stated SDE or include expenses that appear operational rather than discretionary.
Analyze accounts receivable aging and confirm collectability of balances over 90 days.
Stale receivables in construction are often uncollectable and should not be included in working capital targets.
Red flag: More than 20% of AR is over 90 days old without documented dispute resolution or payment plans in place.
Confirm whether revenue is recognized on cash, completed contract, or percentage-of-completion basis.
Method inconsistency between years distorts trend analysis and complicates SBA underwriting.
Red flag: Seller switched revenue recognition methods within the review period without accountant documentation.
Assess workforce stability, foreman capability, and the owner's operational role to evaluate post-acquisition continuity.
Obtain a complete employee roster with roles, tenure, compensation, and any non-compete or retention agreements.
Losing experienced foremen post-close can halt active job sites and damage GC relationships immediately.
Red flag: The business has no foreman capable of estimating or running a job site independently of the owner.
Interview key foremen directly to gauge loyalty, compensation expectations, and awareness of the sale.
Foremen with competing job offers or grievances will leave at close, creating immediate operational risk.
Red flag: Lead foreman is aware of the sale and has already been approached by competing contractors in the area.
Clarify owner's daily operational role — estimating, client contact, project management, or field supervision.
If the owner performs all three functions, the buyer must replace each capability before or at close.
Red flag: Owner is the sole estimator, primary GC contact, and active project manager across all open jobs.
Review subcontractor relationships for specialized work such as post-tension, decorative, or pump work.
Reliable subs extend capability without headcount; losing them post-close creates bidding and execution gaps.
Red flag: Key subcontractors work exclusively with the owner personally and have no contract or documented relationship.
Verify bonding capacity, insurance history, and legal clean slate before committing to final deal terms.
Confirm current bonding line size, surety relationship, and any open or recently closed bond claims.
Bonding capacity determines the project size and contract types the business can legally bid and win.
Red flag: Seller has had a bond claim in the last three years or current bonding line is insufficient for backlog size.
Review general liability and workers' comp insurance history including loss runs for the past five years.
Frequent claims inflate premiums and can make the business uninsurable or unacquirable on SBA terms.
Red flag: Loss runs show three or more GL or workers' comp claims in the past five years with unresolved open claims.
Search UCC, court, and contractor license databases for active liens, judgments, or license violations.
Outstanding mechanics liens or license suspensions transfer risk to the buyer and complicate SBA approval.
Red flag: Active mechanics liens filed against the business or unresolved contractor license disciplinary actions exist.
Verify contractor licenses are current, transferable, and cover all service types the business actively performs.
Non-transferable licenses require new owner to requalify, creating a gap in legal ability to operate.
Red flag: Primary contractor license is held personally by the owner and cannot be transferred with the entity.
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Backlog is the single most important revenue quality indicator in a concrete acquisition. Signed contracts with assignability confirmed represent real transferable value. Verbal GC commitments tied to the seller's personal relationships carry substantial risk of evaporating at close. Require a written backlog report itemized by project, signed contract status, expected margin, and client contact — then verify directly with key clients during due diligence.
Concrete and masonry contractors in the $1M–$5M revenue range typically trade at 2.5x–4.5x SDE depending on backlog quality, customer diversification, equipment condition, and foreman independence. Businesses with signed commercial contracts, experienced crews, and owned equipment fleets command the upper end of the range. Heavy owner dependency, aging equipment, or revenue concentration will compress multiples toward 2.5x or below.
Yes. Concrete and masonry businesses are SBA-eligible and among the more common trade contractor acquisitions financed through SBA 7(a) loans. A typical deal structure pairs 80–90% SBA financing with 10–15% buyer equity and a 5–10% seller carry note. SBA underwriters will scrutinize equipment collateral values, bonding continuity, and revenue concentration — so a clean equipment appraisal and diversified client base meaningfully improve loan approval odds.
Start by mapping every function the owner performs — estimating, client contact, project management, and field supervision — then assess whether a foreman, project manager, or the buyer themselves can absorb each role. Interview lead foremen directly to gauge competence and retention likelihood. If no one in the business can estimate a job or manage a GC relationship without the owner, negotiate a minimum 12-month transition agreement and consider tying a portion of the purchase price to an earnout contingent on backlog conversion and client retention.
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