Launch a Steam and Air-Conditioning Supply Business in London
This page is your practical starter guide for launching a Steam and Air-Conditioning Supply business (NAICS 221330) right in London. It breaks down the 11 essential requirements you’ll need to meet—from business registration and licensing to permits, zoning checks, and equipment compliance. You’ll find a clear, step-by-step view of what approvals are needed, how much they typically cost, and what’s involved in getting your doors open.
You'll learn the specifics: which permits and licenses apply to a steam and air-conditioning supply business in Ontario, what zoning and safety standards matter, what insurance and WSIB coverage you’ll want, and what business registrations (CRA, HST, BN) you’ll need. We also cover typical startup costs—equipment, shop space, tools, and initial stock—and a realistic timeline from incorporation to first delivery.
Why London works: London’s active construction scene, strong manufacturing and service industries, and easy access to major highways make it a great place to launch an HVAC supply business. The city’s supportive small-business ecosystem, affordable rents, and nearby supplier networks help you reach customers faster and grow confidently.
Requirements Overview
The most critical requirement for operating a steam and air-conditioning supply business in London, Ontario is Occupational Health and Safety Act Compliance. This is a legal obligation you cannot operate without, and it means having up-to-date safety programs, training, and protocols to protect workers and customers. There is no flexibility here—non-compliance can stop your business from starting or continuing.
Beyond OHSA, you’ll need to cover essential safety and permits. If your work involves generating or distributing electricity, you must hold the appropriate Electricity Generation/Distribution License. You’ll also follow Industrial Safety Standards and Environmental Compliance to manage risks, waste, and emissions. In addition, Employment Standards Compliance ensures fair treatment of workers, and WSIB Registration and Coverage provides insurance for workplace injuries.
On the registration and tax side, you’ll set up a Business Number (BN) with the Canada Revenue Agency, register your Ontario business name with ServiceOntario, and obtain a municipal Business Licence to operate in London. For taxes, complete GST/HST Registration and, if you have employees, Payroll Deductions Registration. These registrations help you handle taxes and payroll obligations properly.
Next steps: start with a quick compliance check and create a simple action plan. Verify OHSA requirements with Ontario’s workplace regulators, confirm license needs, and then proceed to BN, business name, and licence registrations, followed by GST/HST and payroll registrations. Finally, arrange WSIB coverage and incorporate a practical safety program. If you’d like, I can tailor a practical, step-by-step checklist and timeline for your exact setup.
Detailed Requirements
Here are the specific requirements for starting a steam and air-conditioning supply in London:
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Electricity Generation/Distribution License RequiredElectricity generators, transmitters, and distributors must be licensed by the Ontario Energy Board under the Electricity Act. Ontario Energy Board (OEB) licenses generators, transmitters, distributors, retailers. License application via OEB. Market participant registration with IESO. Small embedded generation may qualify for exemption. Net metering for small producers. Class A vs Class B customers. Contact OEB: 1-888-632-6273.
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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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Business Licence RequiredGeneral business licence required to operate a business in City of London. Apply to City of London 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 London Business Licensing for specific requirements. Home-based businesses may have different requirements. Annual renewal required.
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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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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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Industrial Safety Standards ConditionalRequired for industrial safety. Industrial operations must implement comprehensive health and safety programs including hazard assessments, training, PPE, and incident reporting. OHSA + O. Reg. 851 (Industrial Establishments). Machine guarding, lockout/tagout, confined space entry, fall protection. JHSC for 20+ workers. Safety Rep for 6-19 workers. Designated substances survey before renovation. April 2025-March 2026: MLTSD material handling focus. Noise regulations O. Reg. 381/15. Supervisor competency requirement. Contact MLTSD: 1-877-202-0008.
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Environmental Compliance (Infrastructure) ConditionalRequired for environmental compliance. Infrastructure and industrial operations must comply with environmental regulations for emissions, discharges, waste management, and reporting. Environmental Compliance Approval (ECA) for infrastructure projects. Covers air, noise, sewage, stormwater. EASR for low-risk activities. Multi-media ECA available. O. Reg. 1/17 amended. Contact MECP: 1-800-565-4923.
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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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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.
Funding & Grants
Available funding programs that may apply to your steam and air-conditioning supply:
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The BC CleanBC Industry Fund (CIF) uses carbon pricing revenue to support emission-reduction projects at large industrial facilities in British Columbia. Two funding streams are available: the Innovation Accelerator (supporting pilot or demonstration projects using pre-commercial clean technology at TRL 7–8) and Feasibility Studies (supporting desktop viability studies for future …
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The Alberta Carbon Capture Incentive Program (ACCIP) provides non-repayable grants equal to 12% of eligible capital costs for new CCUS projects, including equipment to capture, compress, transport, store or utilize carbon dioxide. The program is retroactive to January 1, 2022, meaning eligible capital costs incurred since that date qualify. Grants …
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Natural Resources Canada (NRCan) launched six prize-based challenges under the Impact Canada Initiative's Clean Technology Stream, backed by $75 million in federal funding announced in Budget 2017. The challenges—including Crush It!, Power Forward, Sky's the Limit, Charging the Future, Women in Cleantech, and the Indigenous Off-Diesel Initiative—used prize-challenge methodology to …
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A refundable 15% investment tax credit (reduced to 5% if labour requirements not met) on eligible clean electricity property including wind, solar, hydro, tidal, nuclear, and abated natural gas generation, stationary storage systems, and interprovincial transmission equipment. Available to taxable corporations, Crown corporations, municipal/Indigenous-owned corporations, and pension investment corporations. Property …
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The Clean Hydrogen ITC applies to eligible property acquired for use in qualified clean hydrogen projects from March 28, 2023 to December 31, 2034. Credit rates of 15%, 25%, or 40% depend on the lifecycle carbon intensity of hydrogen produced (lower intensity = higher credit). Clean ammonia equipment: 15%. Rates …
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