Due Diligence Checklist · Tile & Stone Installation

Due Diligence Checklist for Buying a Tile & Stone Installation Business

Verify labor stability, backlog quality, customer concentration, and licensing before you close on a specialty tile or stone contractor.

Acquiring a tile and stone installation business requires scrutiny beyond standard financial review. These businesses live and die on crew retention, contractor relationships, and job-level profitability — none of which appear cleanly on a P&L. This checklist walks you through the five highest-risk areas: financial normalization, labor and subcontractor structure, project backlog quality, equipment condition, and licensing continuity. Use it to surface deal-killers early and structure appropriate protections into your LOI and purchase agreement.

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Financial Performance & EBITDA Normalization

Tile contractor financials often include owner compensation, personal expenses, and inconsistent job costing that obscure true earnings. Normalize carefully before applying a multiple.

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Request three years of accrual-basis P&Ls and tax returns and reconcile any gaps between the two.

Cash-basis or informal bookkeeping masks timing distortions in project revenue and materials cost.

Red flag: Tax returns show significantly lower income than seller-presented adjusted EBITDA with no clear add-back documentation.

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Identify and document all owner add-backs including salary, vehicle, travel, and personal expenses run through the business.

Owner-operators routinely commingle personal costs, inflating apparent EBITDA if not properly adjusted.

Red flag: Add-backs exceed 30% of stated EBITDA or cannot be supported by bank statements and invoices.

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Analyze gross margin by project type — residential new construction, remodel, and commercial — for the trailing 24 months.

Margins vary significantly across project types; blended averages hide unprofitable work you may inherit.

Red flag: No job costing system exists and the seller cannot provide margin data at the individual project level.

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Review accounts receivable aging and identify any balances over 90 days or disputed retainage from general contractors.

Uncollected receivables and held retainage directly reduce working capital available post-close.

Red flag: More than 15% of AR is over 90 days or retainage disputes are unresolved with active GC relationships.

Customer Concentration & Contractor Relationships

Most tile contractors depend heavily on a small number of GCs or developers. Understanding relationship transferability is as important as the revenue itself.

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Build a trailing three-year revenue table by customer showing each client's percentage of total annual revenue.

Customer concentration above 30–40% in a single account creates significant post-close revenue risk.

Red flag: One or two GCs represent more than 50% of revenue and all relationships are held solely by the owner.

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Request copies of any signed master subcontractor agreements, preferred vendor contracts, or developer program agreements.

Documented preferred vendor status is transferable; informal handshake relationships often are not.

Red flag: No written agreements exist with top customers and GC contacts confirm loyalty is tied to the current owner personally.

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Interview the top three to five GC or developer contacts to gauge relationship depth and openness to a new owner.

Verbal confirmation from key customers that they will continue the relationship post-sale reduces transition risk.

Red flag: Key GC contacts express hesitation about continuing the relationship or are unaware a sale is being considered.

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Analyze revenue trend by customer over three years to identify growth, stability, or declining account trajectories.

A shrinking top customer relationship is a leading indicator of post-close revenue erosion.

Red flag: The largest customer account has declined more than 20% year-over-year with no replacement pipeline identified.

Labor Roster, Crew Stability & Subcontractor Mix

Skilled tile setters and stone masons are difficult to recruit. Crew continuity is a primary value driver and the single largest operational risk in this acquisition type.

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Obtain a full labor roster with tenure, role, W-2 versus 1099 classification, and compensation for all field personnel.

The mix of employees versus subcontractors affects liability exposure, workforce continuity, and SBA lender comfort.

Red flag: More than 60% of production labor is 1099-only with no employment agreements and high annual turnover.

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Identify all crew leads and foremen, assess their tenure, and confirm their intent to remain post-acquisition.

Experienced crew leads carry institutional knowledge of client standards, estimating norms, and field execution.

Red flag: One or more key crew leads have indicated they may leave if the owner sells or have no financial retention incentive.

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Review workers compensation claim history for the past three years including open claims and experience modification rate.

Open claims create contingent liability and a poor EMR increases insurance cost and can disqualify bonding.

Red flag: Multiple open workers comp claims, an EMR above 1.25, or evidence of misclassified workers flagged by prior audits.

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Assess whether the seller uses any subcontractor crews for overflow work and review those relationships and agreements.

Reliable sub capacity provides scalable flex labor; undocumented or informal sub use creates compliance exposure.

Red flag: Overflow subcontractors are unlicensed, uninsured, or paid informally with no written subcontract agreements in place.

Project Backlog & Pipeline Quality

Backlog is a critical value indicator for tile contractors, but only if it is signed, deposited, and margin-positive. Verify every line before relying on it in your model.

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Request a full backlog schedule showing project name, contract value, start date, completion date, and gross margin estimate.

Backlog volume with no margin visibility is meaningless; you need both size and profitability to underwrite future cash flow.

Red flag: Backlog is presented as a verbal list or spreadsheet with no signed contracts, deposits, or margin estimates attached.

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Confirm which backlog projects have executed contracts and deposits versus verbal commitments or unsigned bids.

Only signed and deposited work represents real economic backlog; unsigned work can evaporate before close.

Red flag: More than 40% of stated backlog consists of uncontracted verbal commitments or bids submitted but not yet awarded.

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Cross-reference backlog project margins against historical job costing to verify the seller's margin estimates are realistic.

Optimistic backlog margin estimates that exceed historical norms inflate forward cash flow projections artificially.

Red flag: Backlog gross margin estimates are 10 or more percentage points above the trailing 24-month average realized margin.

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Review any pending bids in progress and assess the historical bid-to-win conversion rate by project type and customer.

A healthy pipeline beyond signed backlog indicates ongoing business development capability that will survive the transition.

Red flag: Pipeline consists entirely of one large speculative bid with no diversification and a win rate the seller cannot document.

Licensing, Bonding, Insurance & Legal Compliance

Tile and stone contractors must carry valid state licenses, contractor bonds, and liability insurance. Gaps here can halt operations immediately post-close.

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Verify all state and local contractor licenses are current, in good standing, and confirm transferability under the deal structure.

An asset sale may require reapplication for licenses in the buyer's name, creating an operational gap at closing.

Red flag: Licenses are held solely in the seller's personal name and the state does not permit transfer to a new entity owner.

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Confirm contractor bonds and general liability insurance are current and obtain certificates naming the acquisition entity.

GCs and developers often require proof of bonding and minimum liability limits before issuing subcontracts.

Red flag: Bond is expired or general liability coverage has lapsed, creating an immediate barrier to executing existing contracts.

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Review all open litigation, mechanic's liens filed or received, and any OSHA citations in the trailing three years.

Unresolved liens, active lawsuits, or OSHA violations create contingent liabilities that survive an asset purchase.

Red flag: Active mechanic's liens on current projects, pending OSHA citations, or unresolved subcontractor payment disputes exist.

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Confirm NTCA membership, Certified Tile Installer credentials, or manufacturer authorization letters are current and assignable.

These certifications support premium pricing on commercial and luxury residential work and should transfer to the buyer.

Red flag: Certifications are registered to the owner individually and cannot be transferred or requalified within 90 days of closing.

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Deal-Killer Red Flags for Tile & Stone Installation

  • Owner is the sole estimator and all GC relationships are personal, with no delegation to crew leads or project managers
  • One general contractor or developer accounts for more than 50% of trailing twelve-month revenue with no written preferred vendor agreement
  • More than half of field production labor is 1099-classified with no employment agreements and no documentation of subcontractor insurance
  • Stated backlog contains no signed contracts or deposit receipts and is based entirely on verbal commitments from a single developer
  • State contractor license is held in the seller's personal name and is non-transferable, requiring full reapplication post-close

Frequently Asked Questions

What EBITDA multiple should I expect to pay for a tile and stone installation business?

Tile and stone contractors in the lower middle market typically trade at 2.5x to 4.5x adjusted EBITDA. Businesses at the high end have diversified GC customer bases, documented estimating processes, tenured crew leads with retention agreements, and recurring preferred vendor relationships with developers. Businesses with heavy owner dependency, customer concentration above 40%, or an all-1099 workforce will compress toward the low end or require earnout protections to bridge valuation gaps.

How do I assess whether a tile contractor's backlog is real and bankable?

Request a backlog schedule with signed contract copies, deposit receipts, scheduled start dates, and estimated gross margins for every project. Compare those margin estimates against the seller's historical realized job costing data. Verbal commitments and unsigned bids should be excluded from any backlog figure you use in your financial model. A credible backlog for a $2M–$4M revenue contractor should represent at least three to six months of forward revenue in signed, deposited work.

How do I protect myself from losing key crew leads after the acquisition closes?

Require employment agreements or retention bonus arrangements for all crew leads and foremen as a condition of closing. Structure a portion of any seller note or earnout to vest only if key personnel remain for 12 to 24 months post-close. Meet crew leads directly during diligence — not through the seller — to assess their loyalty, compensation expectations, and openness to a new owner. Budget for meaningful compensation increases or profit-sharing to align their incentives with your success.

Can a tile and stone installation business be acquired with an SBA 7(a) loan?

Yes. Tile and stone installation businesses are fully SBA-eligible when they meet standard size requirements and the buyer demonstrates relevant management experience. A typical SBA 7(a) structure covers 80 to 90 percent of the purchase price, with a 10 to 15 percent buyer equity injection and an optional 5 to 10 percent seller note on standby. SBA lenders will scrutinize customer concentration, the 1099 versus W-2 labor mix, and license transferability, so addressing those issues in your due diligence will directly accelerate lender approval.

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