If you've built a specialist trade business, a sale may require careful work on licences, qualifications, safety, retentions, contracts, equipment, employees, working capital, and owner-held relationships.
This article is for owners who are thinking quietly about what comes next. Not ready to call a broker. Just trying to understand the landscape before making any decisions.
What Makes a Specialist Trade Subcontractor Different: and Why It Matters for Sale
Not all construction businesses look the same to a buyer. A general builder is one thing. A specialist trade subcontractor, scaffolding, demolition, LBP-licensed roofing, fire protection, concrete cutting, industrial painting, post-tensioning, is something else entirely.
The difference isn't just about what you do. It's about what it takes to do it legally, competently, and at scale.
Different work can require specific licences, certificates, competent people, systems, supervision, or customer approvals. Map the current requirements, which entity or person holds each credential, its scope and expiry, and what happens if a named person leaves.
These requirements can affect entry, capacity, transition, and diligence. They do not create an automatic valuation premium or customer retention.
Analyse industrial, commercial, residential, project, maintenance, tendered, and repeat work using contracts, margins, backlog quality, concentration, working capital, and delivery requirements. No client category guarantees stability.
The NZ Regulatory Framework That Protects Your Business: and Your Valuation
The applicable regulatory framework depends on the work performed. Verify current requirements with the relevant regulator and qualified advisers.
Building Act and LBP scheme: Certain residential building work is Restricted Building Work and must be carried out or supervised by appropriately licensed building practitioners. Confirm the work categories, licence classes, supervision, records, and owner dependencies that apply.
Health and safety and scaffolding: Check current WorkSafe guidance for scaffolding competency and certification requirements, along with risk management, worker engagement, training, incidents, and regulator records. Do not rely on an outdated height or certificate description.
Asbestos work: Class A and Class B removal, assessor, supervisor, notification, worker, and safety requirements differ. Confirm the current licence holder, named supervisors, conditions, expiry, and transaction implications with WorkSafe and advisers.
Fire-protection work: Identify the standards, inspection, certification, customer, insurer, and qualification requirements that apply to the actual services. Standards and editions must be checked against current contracts and law.
Construction Contracts Act 2002: Retention-money requirements can make retention records an important diligence area. Complete, reconciled records help a buyer and the parties' advisers assess compliance and reduce avoidable uncertainty, but they do not prevent changed terms or conditions.
Qualifications and compliance records can affect operating continuity, risk, diligence, and terms. Their value effect is transaction-specific.
How Specialist Trade Businesses Are Valued: And What Usually Surprises Owners
Most specialist trade business owners have a number in their head anchored to revenue. The first conversation with anyone who understands business valuation tends to reframe this.
Normalised earnings are commonly considered when valuing a specialist trade business, but there is no reliable public multiple for the category. Licences, forward work, customer concentration, owner dependence, safety performance, working capital, and deal structure can each move the outcome.
Revenue on its own is not a valuation. An earnings-based indication still requires adjustments for debt, surplus assets, working capital, capital expenditure, contingent liabilities, and the terms on which consideration will be paid.
Possible normalisation questions include:
- Owner remuneration compared with the cost and role required under new ownership
- Personal expenses run through the business, vehicles, fuel, phones, other owner-related costs
- Project and maintenance revenue, tested through contracts, margins, history, termination, concentration, and delivery obligations
- Non-recurring costs, legal fees, equipment write-offs, anomalies in the P&L
Buyers may examine maintenance contracts, qualification coverage, owner dependence, leadership depth, customer concentration, geography, safety, working capital, and equipment. These factors do not create a universal multiple range.
Retention account records may be reviewed under the Construction Contracts Act. Complete records support diligence but do not protect an agreed price from every change or condition.
Buyer models for specialist trade businesses
Compare the actual proposal rather than assuming an outcome from the buyer category.
Trade buyers may seek capacity, geography, customers, people, or specialist capability. Rebranding and systems integration vary by buyer and transaction.
Private equity commonly invests through funds with defined time horizons. Proposed hold periods, leverage, rollover equity, governance, and earn-out metrics vary and should be reviewed from the actual terms.
Owner-operator buyers may intend to run the business directly. Assess experience, equity, debt, approvals, security, governance, and the seller's continuing exposure.
Permanent holding companies state that they acquire without a planned resale. PermaTech's stated model includes decentralised operations and retained company identity. Sellers should verify the proposed employee, brand, governance, and operating arrangements.
Compare cash at settlement, contingent and deferred consideration, retained risk, seller duties, employees, operating plans, funding, conditions, and references. A buyer label does not determine which proposal is better.
What Permanent Capital Buyers Look for in a Trade Business
Permanent capital acquirers have a specific profile they're looking for.
Stable, owner-independent EBIT. Not a business that depends on the founder's personal relationships or technical involvement to generate revenue.
A leadership team that holds client relationships and technical knowledge. Working foremen, senior estimators, operations managers with genuine standing with clients and staff.
Certifications held at entity level. Licences, registrations, and approvals that belong to the business, not to named individuals who could leave.
Recurring or semi-recurring revenue. Maintenance retainers, multi-year service agreements, preferred-supplier arrangements.
A clean compliance record. WorkSafe audit history, incident register, no outstanding enforcement actions.
International permanent-hold acquirers provide examples of long-term ownership models, but their practices vary by company and transaction. PermaTech's acquisition of Tubman Heating in 2024 demonstrates its stated approach to that transaction only.
Preparing Your Trade Business for Sale: Practical Steps
Start early enough to verify current requirements, correct records, and test succession without relying on a fixed period:
- ☐ Three years of clean financials with normalised EBIT, owner salary and personal expenses documented and removed
- ☐ Certifications and licences held at entity level where possible; individual-held ones identified with a written succession plan
- ☐ NZQA CoC register for all certificated staff, who holds what, when issued, CPD status
- ☐ WorkSafe compliance documentation current, SSSPs, incident register, audit history all in order
- ☐ Asbestos Class A licence documentation (if applicable) current and held at entity level
- ☐ Retention account records clean under the Construction Contracts Act, three years of trust account statements
- ☐ Written contracts for top 5 clients, not just verbal or purchase-order relationships
- ☐ Equipment register with maintenance records
- ☐ Operations procedures documented, not held informally in foremen's heads
- ☐ Independent business valuation commissioned before approaching any buyer
Preparation can improve accuracy and options, but it does not guarantee a transaction outcome. If you're running a specialist trade business in NZ and thinking about what comes next, PermaTech can explain its acquisition model and process without an offer or commitment.