Sheet metal shop due diligence

Once a buyer is under a letter of intent on a sheet metal shop, diligence narrows from a general assessment of the business to a focused verification of the handful of things most likely to actually kill this specific kind of deal. Those items are fairly consistent across sheet metal acquisitions — OEM contract risk, environmental approval status, equipment condition against current tolerance requirements, and undisclosed liability on delivered work — and each deserves its own verification step rather than a single blanket review.

Verify the OEM relationship independently, not through the seller’s account

Confirm the status of the primary OEM contract directly where possible, including whether it requires consent to assign, whether it has a defined term or is evergreen, and whether the customer has raised any performance or pricing concerns recently — reference calls with the OEM’s own procurement contact are the most reliable way to test this, since a seller’s summary of the relationship is naturally optimistic. Loss of the primary OEM contract, or evidence that it is at risk, discovered during these calls is one of the most common reasons a sheet metal deal falls apart or gets substantially repriced.

Confirm the finishing line’s environmental approval status directly with the regulator

Where the shop operates a powder-coat or finishing line, verify its environmental approval status directly with the provincial regulator rather than relying on the seller’s copy of the document — in Ontario this means confirming current standing on the environmental compliance approval with the Ministry of the Environment, Conservation and Parks, since other provinces administer their own separate approval process. A finishing line operating without a current approval is treated as a real deal issue, not a paperwork gap, because it can mean the line is not legally operable until the approval is corrected.

Verify WSIB clearance and machine-safety compliance independently

Confirm the shop’s WSIB clearance certificate status directly with WSIB rather than relying on a copy the seller provides, since this confirms there are no outstanding workplace insurance premiums owing and is generally a closing condition on an asset purchase in Ontario, with other provinces running their own equivalent workers’ compensation clearance process. Separately, ask whether the shop has any outstanding Ministry of Labour orders related to machine guarding or noise exposure on the punch, laser or bending equipment — an open order is a compliance timeline and a cost the buyer inherits, not simply a documentation gap to note and move past.

Test whether the equipment can actually hold current tolerances

A physical inspection paired with the shop’s own quality-control and rework records will show whether equipment described as capable of holding current OEM specs is actually doing so consistently, or whether it is producing an above-normal rate of scrap and rework that has not been reflected in reported margins. Equipment too dated to hold tolerance on current OEM specs, forcing a near-term capital outlay the buyer had not priced in, is one of the more common findings that changes a deal’s economics after diligence begins.

Check for undisclosed warranty or rework exposure on delivered parts

Review any warranty claims, customer complaints and rework history tied to previously delivered parts, since undisclosed liability of this kind can attach to the buyer under an asset purchase depending on how the deal is structured, and a pattern of quality issues that never made it into the financial statements changes the real picture of what is being bought. Custom tooling and dies built for a specific customer program are frequently customer-owned rather than shop-owned, so confirm which tooling actually transfers with the sale and which does not.

Separate customer-owned tooling from what the shop actually owns

Where the shop’s contract-manufacturing work runs on dies, fixtures or tooling built for a specific OEM program, confirm through the OEM agreement and any tooling schedule which items are shop-owned and which remain the customer’s property, since this is commonly misunderstood or left undocumented until a sale forces the question. Tooling that turns out to be customer-owned is not available to be sold, financed or relied on if that OEM program ever moves elsewhere, which changes both the asset base you are buying and the risk profile of that revenue stream. Where records are unclear, ask the seller to reconcile the tooling list against each OEM purchase order or program agreement directly, rather than accepting a general assurance that “most of it is ours” — the distinction has a real effect on both the purchase price and what you would need to invest to keep a program running if a piece of tooling turns out not to transfer.

What a finding actually means

• An OEM contract confirmed to be genuinely at risk usually calls for a lower price, a holdback or an earn-out tied to contract renewal, not simply walking away
• A lapsed environmental approval typically means a closing delay while it is corrected, with the cost and timeline priced into the deal
• Equipment unable to hold current tolerances is a capital-expenditure issue best quantified and reflected directly in price
• Undisclosed warranty or rework liability usually calls for a specific indemnity or holdback in the purchase agreement rather than a general price reduction