Cabinetry and millwork shop due diligence

By the time a buyer is under a letter of intent on a cabinetry and millwork shop, the question has shifted from whether the business looks good to whether what the seller described actually holds up. Four categories of verification matter most in this sub-sector: whether the regulatory approvals the shop depends on for finishing work are genuinely current, whether the referral relationships behind the revenue are documented rather than simply asserted, whether the open project contracts and any warranty exposure sitting on the books are fully disclosed, and whether the equipment being purchased is free of liens that could complicate the transfer. Each of these produces a specific finding that either clears the deal or stops it.

Confirm the spray-finishing and dust-collection approval directly with the authority that issued it

Do not rely on the seller’s description of a finishing operation’s compliance status — request the actual approval documentation and, where practical, confirm its current standing directly with the relevant provincial or municipal authority, since in Ontario this touches both provincial fire-code rules and Ministry of Labour, Immigration, Training and Skills Development workplace-safety requirements, with other provinces running separate regimes. A lapsed, informal or never-obtained approval on an active finishing operation is one of the clearest deal-breakers in this sub-sector, because it means the buyer may not legally be able to keep running that part of the business without remediation.

Verify referral relationships with something more than a conversation

Ask for whatever documentation exists — quote logs, account histories, correspondence with key builders and designers — that shows how referral relationships have actually been managed, and where practical, a controlled reference conversation with a key account can confirm whether the relationship is genuinely institutional. A seller’s assurance that 'the builders will stay' is not evidence; the absence of any account management history behind a concentrated set of referral relationships is one of the strongest signals that the revenue is more personal to the seller than the business itself.

Pull the employment and workplace-safety file, not just the payroll summary

Request a current Workplace Safety and Insurance Board clearance certificate and review the shop’s claims history, since an outstanding WSIB account balance can attach to successor liability in an asset purchase depending on how the deal is structured. Review employment records for the estimator, finishers and installers whose skills the shop’s quality and relationships actually depend on, including any outstanding claims, grievances or safety incidents tied to the finishing operation specifically, since that is where workplace-safety exposure in this sub-sector tends to concentrate.

Reconcile open project contracts, deposits and warranty exposure line by line

Request the full list of open project contracts and deposits held for work in progress, and compare it against the accounting records to confirm nothing is missing or double-counted. Separately, ask for any warranty or callback claims — resolved or outstanding — on projects completed over roughly the past year, since undisclosed or unreserved callback exposure is a common source of post-closing disputes in a project-based trade like this one, and a pattern of unresolved claims can signal a broader quality issue worth investigating further.

Search for liens and confirm corporate standing before relying on any of it

A registry search against the shop’s equipment can reveal outstanding financing or liens that need to be cleared or accounted for in the purchase price, and a corporate status search confirms the selling entity is in good standing and has the authority to complete the transaction. Neither search is specific to cabinetry, but skipping either one on a shop whose value depends heavily on its CNC and finishing equipment is a mistake specific to this sub-sector, since that equipment is often the largest tangible asset in the deal.

Reconcile equipment maintenance records against what the shop tour suggests

Ask for maintenance and service records for CNC, dust-collection and finishing equipment, not just a walkthrough — a machine that looks fine on a shop tour can be carrying deferred maintenance that shows up as a capital cost within the first year of ownership. Compare that service history against what the seller has represented about condition and remaining useful life, and where a piece of equipment is financed or leased, confirm the payout figure and whether the agreement is assumable or needs to be paid out at closing. This is one of the more concrete, verifiable checks available in a process that otherwise relies heavily on judgment calls about relationships and backlog.

Know what actually stops a deal here

A finishing operation lacking a required approval, referral relationships that turn out to be entirely personal to the departing owner with no institutional account management behind them, undisclosed warranty callbacks on recent projects, and a backlog that is verbal rather than backed by signed contracts and deposits are the findings most likely to kill a deal in this sub-sector or force a real repricing. Anticipating that these are the categories most likely to matter lets a buyer’s due diligence focus where it counts instead of spreading evenly across a generic checklist.