Going out on your own
How to start a low-voltage cabling business in Ontario
Low-voltage shops install structured cabling, networks, security cameras, access control, and AV — the rare "electrical" business you can build without the five-year 309A apprenticeship, because much of the work sits outside the licensed electrical scope.
Low-Voltage & Data Cabling at a glance
- Licence to do the work
- Mostly outside the 309A/LEC gate — know the line-voltage boundary
- Path in
- BICSI training / on-the-job — months, not a 5-year apprenticeship
- Regulated by
- ESA at the line-voltage boundary; BICSI sets cabling standards
- Insurance baseline
- $2M CGL + E&O if you design systems
The steps to start your low-voltage cabling business
- 1
Incorporate your company
Most contractors incorporate (Ontario or federal) to limit personal liability, look credible to larger clients, and access tax advantages once profitable. You choose a named or numbered company, set directors and share structure, and file the articles. Budget roughly $400–$600.
Full guide: Incorporation - 2
Register your CRA accounts
Get a Business Number, then register for HST/GST (mandatory once you exceed $30,000 in revenue, and worth registering sooner to claim input tax credits), a payroll account if you will hire, and corporate income tax. This is free and done through the CRA.
Full guide: CRA Registration - 3
Register for WSIB
Construction is a mandatory WSIB sector. Independent operators and partners in construction generally must register even with no employees, and clients and general contractors will require a valid WSIB clearance certificate before letting you on site.
Full guide: WSIB & Provincial - 4
Handle low-voltage & data cabling licensing & permits
Most low-voltage work (communications cabling, data, CCTV, access control at extra-low voltage) falls outside the 309A/LEC licensing gate — but the boundary matters: anything connecting to line-voltage power, and certain alarm/life-safety work, pulls in licensed-electrician or CFAA territory. Industry certifications (BICSI for structured cabling) and manufacturer certifications (cameras, access control) are the credibility layer.
Full guide: Trade Licensing - 5
Get insured
Carry Commercial General Liability (typically $2M, $5M for commercial/industrial work), plus tools and equipment, commercial auto, and — depending on scope — builders risk and professional liability. Many contracts and clients specify minimum coverage before you can quote.
Full guide: Insurance - 6
Set up health, safety & compliance
Meet your Occupational Health and Safety Act duties: a health and safety policy, required training (WHMIS, Working at Heights where applicable), and — for commercial and public work — often COR® certification. This is also where any trade-specific safety tickets live.
Full guide: Safety Compliance - 7
Stand up your operations
Open business banking, set up construction-specific accounting, and understand your trust obligations under the Construction Act (holdback, prompt payment, and adjudication). This is the back office that keeps you paid and out of trouble.
Full guide: Operational Setup - 8
Get bid-ready and win work
Assemble your prequalification package — incorporation and WSIB documents, insurance and bonding letters, safety program, key personnel, and project references — then quote, send proposals, and collect on invoices. This is where a construction business actually makes money.
Full guide: Bid Readiness
Insurance for a low-voltage cabling business
Lower physical risk than line-voltage electrical, but you work in operating businesses — data-outage and property exposure matter. $2M CGL plus errors & omissions if you design systems.
Your launch checklist
The whole page in one list. Screenshot it, stick it on the dash of the truck.
- Incorporate your company
- Register your CRA accounts
- Register for WSIB
- Handle low-voltage & data cabling licensing & permits
- Get insured
- Set up health, safety & compliance
- Stand up your operations
- Get bid-ready and win work
Low-Voltage & Data Cabling questions, answered
Do you need a licence? How much does it cost? See the FAQs.
Low-Voltage & Data Cabling overview
Licensing, regulators, and certifications at a glance.
Skip the paperwork. Let AEC Stack set it up
AEC Stack runs the whole process for a low-voltage cabling business: incorporation, CRA, WSIB, permits, insurance, compliance, and the operations to win your first contract.
Start your low-voltage & data cabling business