Launch Your Markham Highway, Street, and Bridge Construction Business
This page offers a practical, step-by-step roadmap for launching a Markham-based highway, street, and bridge construction business (NAICS 237310). It breaks down the 15 key requirements, walks you through the permits and approvals you'll need, and gives a realistic view of startup costs and a timeline from company setup to securing your first project bid.
You’ll learn the essentials: how to register your business, secure the necessary licenses, and arrange insurance and bonding; what safety programs and certifications are expected on Ontario construction sites; which municipal and provincial permits apply; how costs accumulate (equipment, fleet, bonding, insurance, and workspace); and an estimated project timeline from incorporation to first bid, contract, and mobilization.
And Markham is a great place to grow this kind of business: strong infrastructure plans, a steady stream of road and bridge projects, access to skilled labor, and opportunities with municipal and provincial programs that value reliable construction partners.
Requirements Overview
The most critical requirement for operating a business in Markham is the Professional Engineer Stamp (Structural Work). A licensed Professional Engineer must stamp all structural drawings for highway, street, and bridge projects. Without this stamp, you cannot legally proceed with design or construction of structural work. This requirement is non-negotiable and forms the foundation of any approved project plan.
Mandatory operational requirements: You must follow Ontario's Occupational Health and Safety Act and implement Construction Project Health and Safety procedures to protect workers. Before any digging, use Ontario One Call to locate underground utilities. If renovating or demolishing, complete a Designated Substance Survey. Ensure WSIB coverage for your crew and obtain Commercial General Liability Insurance suitable for construction. If your project requires it, obtain a General Contractor License (if required) and secure the municipal Business Licence from the City of Markham.
Business registration and tax: Register your business name with ServiceOntario and obtain a Business Number (BN) from the Canada Revenue Agency. Set up GST/HST registration and Payroll Deductions Registration. These registrations keep you compliant, help with invoicing, and ensure payroll taxes are handled properly.
Next steps: Start by confirming the scope that needs the PE stamp and secure sign-off from a licensed engineer. At the same time, line up safety programs, utility locates, insurance, and WSIB. Begin BN, ServiceOntario name, and GST/HST registrations, and set up payroll registrations if you have employees. If you’d like, I can help map the exact registrations for your Markham project.
Detailed Requirements
Here are the specific requirements for starting a highway, street, and bridge construction in Markham:
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Business Licence RequiredGeneral business licence required to operate a business in City of Markham. Apply to City of Markham for Business Licence: 1. Determine business category 2. Complete business licence application 3. Submit required documents (ID, lease, zoning confirmation) 4. Pay application and annual fees 5. Await approval and receive licence Contact City of Markham Business Licensing for specific requirements. Home-based businesses may have different requirements. Annual renewal required.
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Business Number (BN) Registration RequiredA 9-digit Business Number is required for most businesses operating in Canada. It is used to interact with the Canada Revenue Agency and other federal programs. Required for GST/HST, payroll, corporation income tax, and import/export accounts. Register FREE online through Business Registration Online (BRO) at canada.ca. Takes 15-30 minutes. As of November 3, 2025, online registration is MANDATORY for new BNs - phone registration no longer available. You'll need: business name, address, owner SIN, business type, and start date. BN (9-digit number) issued INSTANTLY online. Available 21 hours/day, 7 days/week (closed 3-6am ET for maintenance).
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Construction Project Health and Safety Requirements RequiredConstruction projects must comply with Ontario Regulation 213/91 covering fall protection, excavation, scaffolding, powered equipment, confined spaces, and other construction-specific hazards. Comply with OHSA and O. Reg. 213/91 (Construction Projects). Jan 2024-2025: crane safety updates. July 2025: washroom maintenance records required. Jan 2026: O. Reg. 480/24 servicing records. 20+ workers: JHSC required. Menstrual products required (20+ workers, 3+ months). Oct 2024: electronic posting allowed. Working at heights training mandatory. Contact MOL: 1-877-202-0008.
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Constructor Duties and Responsibilities RequiredGeneral contractors and constructors have specific duties under the OH&S Act including appointing supervisors, ensuring compliance with regulations, providing equipment and training, and implementing safety programs. OHSA s.1 definition: person undertaking project for owner. Overall responsibility for project compliance. Bill 190 (Oct 2024): washroom maintenance records July 2025, detailed records Jan 2026 (O. Reg. 480/24). Form 1000 collection. Weekly inspections (O. Reg. 213/91 s.14(4)), daily recommended. May have dual duties as employer/owner. Single contractor = general contractor = constructor. Contact MLTSD: 1-877-202-0008.
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Ontario One Call - Utility Locates RequiredBefore excavation, contractors must request utility locates through Ontario One Call to identify underground infrastructure (gas, electric, telecom, water, sewer). Mandatory for all excavation work. Required by law before any ground disturbance. Submit locate request 5 business days ahead (single property) or 10 days (multiple). Valid 60 days minimum. Administrative penalties since May 1, 2024. FREE service. O. Reg. 213/91 s.228 for contractors. Private infrastructure (BBQ gas lines) are owner's responsibility. 24/7 service. Contact: 1-800-400-2255 or ontarioonecall.ca.
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Ontario Business Name Registration (ServiceOntario) RequiredBusinesses in Ontario operating under a name other than the owner's legal name must register with Ontario Business Registry through ServiceOntario. This includes sole proprietorships, partnerships, and business names for corporations. Registration provides legal protection for the business name within Ontario and is required for banking, licensing, and business operations. Registration can be completed online through Ontario Business Registry. Business name registrations must be renewed every 5 years. Register business name with Ontario Business Registry: 1. Search Ontario Business Registry (free) for name availability 2. Consider NUANS name report ($25) for thorough search 3. Register online through Ontario Business Registry 4. Pay registration fee ($60 for sole proprietorship/partnership) 5. Receive 9-digit Ontario Business Identification Number (BIN) 6. Registration valid for 5 years 7. Renew before expiry
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Professional Engineer Stamp (Structural Work) RequiredStructural and certain other construction work requires design and approval by a licensed Professional Engineer (P.Eng.) registered with Professional Engineers Ontario (PEO). P.Eng. license required from PEO for structural work. Must have seal issued by PEO. Required for: wall removal, roofline changes, underpinning, structural modifications. Certificate of Authorization (C of A) for firms. PEAK CPD mandatory since Jan 2023. Nov 10, 2025: license suspension risk for PEAK non-compliance. Multiple stamps needed based on competency. Must be "Practising" status to use seal. Contact PEO: 416-224-1100.
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Occupational Health and Safety Act Compliance RequiredAll Ontario workplaces must comply with the Occupational Health and Safety Act to ensure safe working conditions. Requirements include workplace safety policies, training, hazard assessments, and incident reporting. No registration - compliance law. Must post OHSA in workplace. JHSC required for 20+ workers (or 6+ in designated industries). Nov 2025: New administrative penalty scheme, defibrillator reimbursement. Telework now covered. Fines: up to $500K individuals, $1.5M corporations. 27 regulations under OHSA. Must conduct safety audits, maintain training records. Contact: 1-877-202-0008.
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Employment Standards Compliance ConditionalApplies if you have employees. Covers minimum wage, hours of work, vacation pay, public holidays, termination notice, etc. All Ontario employers must comply with the Employment Standards Act, covering minimum wage, hours of work, overtime, vacation, termination, severance, and other workplace rights. No registration required - compliance-based requirement. Follow Employment Standards Act (ESA) for minimum wage, hours of work, overtime, vacation, leaves, and termination. Post ESA poster in workplace (free download from ontario.ca). Keep employment records for 3 years. NEW for 2025: Employers with 25+ staff must provide written employment info to new hires by July 1, 2025. Job postings must include salary ranges by Jan 1, 2026. Call 1-800-531-5551 for help.
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GST/HST Registration ConditionalRequired if annual taxable revenue exceeds $30,000 (small supplier threshold). Taxi/ride-share drivers must register regardless of revenue. Businesses with gross revenues over $30,000 in any single quarter or over four consecutive quarters must register for, collect, and remit GST/HST. Small suppliers (under $30,000) may register voluntarily. Register FREE online through Business Registration Online (BRO) when your revenue exceeds $30,000 in any 4 consecutive quarters (small supplier threshold). Takes 15-30 minutes. You MUST register within 29 days of exceeding threshold and start charging GST/HST immediately on the sale that made you exceed it. Need your BN (or get one simultaneously). As of Nov 3, 2025, online registration is mandatory. Voluntary registration available anytime for input tax credits.
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Payroll Deductions Registration ConditionalRequired if you pay salaries, wages, or other remuneration to employees. Must register before first pay period. Required if you have employees. You must withhold Canada Pension Plan (CPP), Employment Insurance (EI), and income tax from employee wages and remit to CRA. Register FREE online through Business Registration Online (BRO) when you hire your first employee. Takes 15-20 minutes. You'll need your Business Number (BN) or can get one simultaneously. Payroll account (RP) added to your BN instantly. Register BEFORE your first pay date. Required to deduct CPP, EI, and income tax from employee wages. For 2025: CPP rate 5.95%, EI employee rate $1.66/$100 insurable earnings.
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Designated Substance Survey (Renovation/Demolition) ConditionalRequired before demolition/renovation of buildings. Before renovation or demolition of buildings constructed before 1990, a designated substance survey must identify asbestos and other hazardous materials. Workers must be trained and protected. Required under s.30 OHSA before renovation/demolition. Identifies 11 designated substances: asbestos, lead, mercury, silica, arsenic, benzene, etc. Also covers PCB, mould, urea formaldehyde. Non-compliance = work stoppages, liability. Hire qualified DSS consultant. O. Reg. 278/05 for asbestos. April 2025-March 2026: MLTSD enforcement focus. Contact qualified environmental consultant.
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WSIB Registration and Coverage ConditionalRequired within 10 days of hiring first employee, including family members and subcontractors. Workplace Safety and Insurance Board (WSIB) registration is mandatory for most Ontario businesses with employees. Provides compensation and support for workplace injuries and illnesses. Sole proprietors and partners can apply for optional coverage. Register FREE online at wsib.ca in 15-20 minutes. MANDATORY for most Ontario employers within 10 calendar days of hiring first worker. You'll need: CRA Business Number, payroll estimate, business activity description, owner/director info. Account number issued INSTANTLY online. Construction industry has expanded compulsory coverage. Premium rates vary by industry classification. Must display WSIB safety poster in workplace.
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Commercial General Liability Insurance (Construction) RecommendedConstruction contractors should maintain commercial general liability (CGL) insurance covering bodily injury, property damage, and completed operations. Often required by clients and for municipal permits. CGL required by contracts, not statute. Typical minimums: $2M-5M for larger projects. Covers third-party bodily injury, property damage. Additional insureds often required. Wrap-up insurance for large projects. Contractor-controlled or owner-controlled (OCIP/CCIP). Professional liability separate. WSIB separate requirement. Contact RIBO broker.
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General Contractor License (if required)While Ontario does not require general contractor licensing at the provincial level, some municipalities may require business licenses for contractors. Federal or provincial incorporation recommended. Ontario has NO general contractor license. HCRA license only for new home construction/renovation. Compulsory trades require STO certification. Builder/vendor must register with Tarion. Municipal business licenses may apply. WSIB and insurance required. Constructor duties under OHSA. Check HCRA for residential work. Contact HCRA: 416-487-4272.
Funding & Grants
Available funding programs that may apply to your highway, street, and bridge construction:
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The ATTC provides qualifying Ontario employers with a refundable tax credit equal to 25% of eligible expenditures (30% for small businesses) incurred during the first 36 months of a qualifying apprenticeship, up to a maximum of $5,000 per qualifying apprentice per year. The credit applies only to apprenticeship programs that …
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The Labour Mobility Deduction (LMD), enacted via Bill C-241, provides tradespeople and indentured apprentices in construction with a personal income tax deduction of up to $4,000 per year for eligible temporary relocation expenses. The worker must temporarily relocate more than 150 km from their ordinary residence within Canada for at …
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A $595 million program (Budget 2021) plus $90 million additional (Budget 2024, for housing trades). Since its launch in 2022, the program has funded 11,459 employers to create 17,208 apprenticeship placements. Provides $5,000 per first-year apprentice hired in one of 39 eligible Red Seal designated trades. An additional $5,000 is …
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