Know exactly what to verify before acquiring a Generac, Kohler, or Cummins authorized dealer — from OEM transfer rights to maintenance contract stickiness.
Acquiring a generator sales and service business offers compelling recurring revenue, recession-resistant demand, and defensible OEM dealer status — but the risks are specific and serious. Brand authorization agreements may not transfer automatically, technicians with manufacturer certifications are hard to replace, and revenue quality varies dramatically between businesses built on recurring maintenance contracts versus storm-driven emergency calls. This checklist walks buyers through the five most critical due diligence categories: OEM and dealer authorization, maintenance contract quality, technician and workforce risk, financial performance, and operational infrastructure. Use it to separate businesses with durable, transferable value from those whose worth walks out the door with the exiting owner.
Verify that manufacturer relationships, authorized dealer status, and warranty service agreements can transfer to you at closing without disruption.
Request copies of all active OEM dealer and warranty service agreements with Generac, Kohler, Cummins, or Briggs & Stratton.
Authorized status drives equipment access, warranty work revenue, and customer trust — losing it post-close can crater revenue.
Red flag: Dealer agreement includes a change-of-control clause requiring OEM approval or automatic termination upon ownership transfer.
Confirm current compliance with OEM volume thresholds, technician certification minimums, and facility requirements.
Falling below OEM thresholds risks losing dealer status before or after close, cutting off new unit sales and warranty work.
Red flag: Business is on a performance improvement notice from any OEM or has missed annual unit sales minimums in the past 24 months.
Contact OEM territory managers directly to verify authorization transferability and get written confirmation of transfer intent.
Verbal assurances from sellers are insufficient — OEMs have final say on dealer transfers and may impose new requirements on buyers.
Red flag: Seller discourages or delays direct OEM contact, or OEM representative is unaware a sale is being contemplated.
Review equipment allocation history and access to priority inventory during high-demand periods like storm season.
Allocation access during peak demand determines whether the business can capitalize on its highest-margin installation opportunities.
Red flag: Business has been deprioritized in OEM allocation queues or relies on secondary distributors rather than direct OEM purchasing.
Assess the size, renewal rate, and transferability of the recurring maintenance agreement portfolio — the most valuable revenue stream in this business.
Obtain a full schedule of active maintenance service agreements including contract value, renewal date, asset type, and customer segment.
Recurring contract revenue is the primary value driver; you need to verify it is real, current, and concentrated appropriately.
Red flag: Seller cannot produce a clean contract schedule or a material portion of agreements are expired, verbal, or month-to-month.
Calculate trailing 24-month renewal rate and average revenue per contract across residential, commercial, and industrial tiers.
Renewal rates above 85% indicate sticky, relationship-based contracts; lower rates signal customer satisfaction or pricing problems.
Red flag: Renewal rate is below 75% or the seller cannot produce renewal data and attributes retention to personal customer relationships.
Review contract terms for assignability, cancellation provisions, and whether customer consent is required for ownership transfer.
Contracts that require customer consent to assign create significant churn risk if customers are loyal to the outgoing owner.
Red flag: A material percentage of contracts include customer termination rights triggered by ownership change.
Segment maintenance revenue by customer type — residential, light commercial, and industrial — and identify top 10 customers by contract value.
Commercial and industrial contracts carry higher average value and lower churn; residential-heavy books are more vulnerable to owner departure.
Red flag: More than 15% of total maintenance revenue is concentrated in a single customer or site.
Evaluate the depth, certifications, and retention stability of the technical team that delivers every dollar of service revenue.
Obtain technician roster with tenure, OEM certifications held, and whether each holds customer-facing primary relationships.
Certified technicians are required for OEM warranty work and take 12–18 months to replace if they depart post-acquisition.
Red flag: Fewer than two technicians hold active OEM certifications, or all certifications are held solely by the departing owner.
Review existing employment agreements, non-solicitation clauses, and any retention bonuses being offered at close.
Without binding agreements, key technicians can depart and immediately service former customers as competitors.
Red flag: No non-solicitation agreements are in place for any technician, and seller has not initiated retention conversations ahead of sale.
Conduct confidential interviews with lead technicians to assess job satisfaction, succession awareness, and openness to new ownership.
Technician sentiment is a leading indicator of post-close retention — unhappy technicians will leave at the first sign of change.
Red flag: Lead technicians are unaware of the sale and have no relationship with anyone other than the selling owner.
Assess current wage rates against local market benchmarks and identify any deferred compensation or promised raises.
Below-market wages are a retention time bomb; technicians will be recruited aggressively by competitors post-announcement.
Red flag: Technician wages are more than 15% below regional market rates with no documented plan to adjust compensation.
Validate the accuracy of reported earnings, understand revenue composition, and stress-test EBITDA for owner-specific adjustments.
Request three years of accrual-based financials separated by revenue stream: installation, service contracts, parts sales, and emergency repair.
Blended revenue reporting masks the quality difference between recurring contract income and volatile storm-driven emergency calls.
Red flag: Seller only provides cash-basis statements or cannot separate revenue streams without significant time and effort.
Recast EBITDA by identifying all owner add-backs including personal vehicle use, family payroll, and non-recurring storm-season windfalls.
Inflated add-backs or one-time storm revenue presented as baseline earnings will cause you to overpay for normalized earnings power.
Red flag: More than 30% of EBITDA in any single year is attributable to a major weather event with no comparable recurring base.
Verify parts and equipment inventory through a physical count and compare to book value, checking for obsolete or slow-moving SKUs.
Inflated inventory on the balance sheet can misrepresent working capital; obsolete parts have no value in an asset purchase.
Red flag: Inventory records are paper-based or unreconciled, or more than 20% of listed inventory has had no sales movement in 18 months.
Analyze gross margin by revenue stream and confirm parts and service margins are consistent with industry benchmarks.
Compressed margins on service contracts may indicate underpriced agreements that will require renegotiation post-close.
Red flag: Service contract gross margins are below 40% or parts margins are below 25%, suggesting pricing pressure or supplier issues.
Determine whether systems, processes, and supplier relationships are documented and transferable without the selling owner.
Review the service management or CRM system for completeness of customer asset records, service history, and scheduled PM visits.
A documented customer asset database is what makes the business transferable — without it, you are buying relationships, not a system.
Red flag: Customer records are stored in the owner's personal email, paper folders, or an unstructured spreadsheet with no service history.
Evaluate dispatch, scheduling, and warranty claim submission workflows to confirm they operate without owner involvement.
Owner-dependent scheduling creates immediate operational disruption and customer dissatisfaction during post-close transition.
Red flag: The selling owner personally dispatches all technicians and submits all OEM warranty claims with no documented backup process.
Inspect service vehicle fleet condition, maintenance records, and identify any deferred capital expenditures required within 24 months.
Aging or poorly maintained vehicles create immediate post-close capital needs that reduce effective deal value.
Red flag: More than half the service fleet exceeds 150,000 miles with no replacement plan funded or reflected in the purchase price.
Confirm supplier relationships for equipment, parts, and subcontracted electrical work are not personally held by the selling owner.
Supplier accounts tied to the owner's personal credit or reputation may require renegotiation or new credit applications post-close.
Red flag: Primary equipment supplier account is in the owner's personal name or backed by a personal guarantee with no business credit history.
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No — most OEM dealer and service authorization agreements include change-of-control provisions that require the manufacturer's explicit approval before transfer. Some agreements terminate automatically upon a change of ownership. Before signing a purchase agreement, request written confirmation from the OEM's territory manager that they will honor and transfer authorization to the new owner. Structuring an earnout or a portion of seller carry tied to successful OEM transfer is a common way to protect yourself if approval is delayed or conditional.
Start by pulling the trailing 24-month renewal rate — anything above 85% indicates sticky, systems-based retention rather than personal loyalty. Review a sample of contracts to confirm they are assignable without customer consent. Then assess how customer-facing the selling owner is: if customers call the owner's personal cell and have never met a technician, churn risk is high. A structured transition period of 6 to 12 months where the seller introduces key customers to your team is essential when owner relationships are a factor.
Generator sales and service businesses with 30% or more of revenue from recurring maintenance contracts and active OEM dealer status typically trade between 4.0x and 5.5x EBITDA in the lower middle market. Businesses with thin contract bases, heavy storm-revenue dependency, or significant key-person risk trade closer to 3.5x. SBA 7(a) financing is widely available for qualified buyers, with lenders generally comfortable underwriting at these multiples when recurring revenue is well-documented and the OEM relationship is confirmed transferable.
Request a full technician roster with tenure, OEM certifications, and current compensation. Verify whether any non-solicitation agreements are in place. Ask the seller directly which technicians have expressed concerns about the sale and whether retention bonuses have been offered. If possible, conduct confidential conversations with lead technicians before close. Budget for retention bonuses — typically 10 to 20 percent of annual salary payable 12 months post-close — to keep certified personnel through the transition. Losing one certified technician can reduce warranty revenue and OEM authorization compliance simultaneously.
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