Alternator and starter rebuild workshop

Rebuild used alternators and starters in a small unit and supply them to garages at trade prices.

Car alternator and starter motor parts displayed on a shelf.
Startup costC$12k to C$60k
Monthly revenueC$4k to C$20k
Time needed25+ h/week
First incomeMonths
  • C$12k-60k
  • Part-time
  • Own premises

Estimates for a small start in Canada, not guarantees.

What it is

A small workshop that takes in used alternators and starters, tests them, replaces worn parts and sells them as rebuilt units to garages and repairers. You can also rebuild specialist or older units that wholesalers rarely stock.

Your first three steps

  1. Learn the rebuild process through a training course, apprenticeship or time working in an auto electrical shop
  2. Price a basic bench setup with a test bench, tools and a component supplier, and find a small unit or workshop space
  3. Rebuild a handful of common units, then offer them to local garages with a clear warranty
Who pays

Independent garages, fleet and equipment repairers, and farm, marine or heavy-vehicle workshops that need hard-to-find units.

How it makes money

You sell rebuilt units at trade prices that sit below new parts but well above your cost of components and labour. Core returns from garages keep your supply of units to rebuild coming in.

Skills that help
  • Electrical and mechanical aptitude, ideally with auto electrical or mechanic training
  • Careful testing and quality control
  • Dealing with trade customers and managing accounts
Watch out for
  • Commercial general liability and product liability insurance, since a faulty part can cause costly damage
  • Safe handling and disposal of old parts, oils and any hazardous materials, so check provincial and municipal rules
  • Check zoning and business licence requirements for your workshop, and workplace safety training (WHMIS)
  • WCB/WSIB coverage rules by province if you hire help
  • Warranty claims and returns can eat into margins, so test every unit before selling

Deep research report · Canada

Everything you need to start: alternator and starter rebuild workshop

Researched with live web search for Canada: real startup prices, the licences and rules, what others charge, a break-even example, how to find your first customers and a 30-day launch plan. With sources.

  • Startup costs with real prices
  • Licences, registration and rules
  • Pricing: what others charge
  • Break-even example
  • Finding your first customers
  • 30-day launch plan
  • Risks and how to reduce them
Ready in about 2 minutes · one-off payment, tax included

See a full sample report

Questions people ask

How much does it cost to start an alternator and starter rebuild workshop?

Startup costs are typically estimated at around $12,000 to $60,000, depending on workshop space, tools and testing equipment. Monthly revenue is typically estimated at around $4,000 to $20,000, depending on the units you rebuild and your trade customers.

What rules and insurance should I check before opening a rebuild workshop?

Check commercial general liability and product liability insurance, and safe handling and disposal of old parts, oils and hazardous materials under provincial and municipal rules. Also check zoning, business licence requirements, WHMIS training, and WCB/WSIB rules if you hire help.

What skills and time does a rebuild workshop need?

Estimates point to electrical and mechanical aptitude, ideally with auto electrical or mechanic training, careful testing, and managing trade accounts. Plan for at least about 25 hours a week. Warranty claims can eat into margins, so test every unit.

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