Launch a Steam and Air-Conditioning Supply Business in Longueuil
This page helps you plan and launch a steam and air-conditioning supply business in Longueuil (NAICS 221330). It offers a practical requirements overview, including the nine key steps to start: registrations, permits, insurance, and licensing, plus how to set up inventory and supplier agreements. You’ll find a clear, action-focused checklist with estimated costs and a realistic timeline, so you move from idea to launch with confidence.
You’ll learn exactly which permits and registrations are typically required in Quebec, how to apply for municipal and environmental clearances, and what inspections to expect. We break down startup costs—inventory, workspace, permits, insurance, and initial marketing—and outline a practical timeline from incorporation to opening day. The focus is practical: nine requirements at a glance, what you’ll need to budget, and how long it usually takes.
Why Longueuil? The city’s strategic link to Montreal, strong industrial sectors, and accessible supplier networks create steady demand for HVAC parts and services. A local focus helps you build relationships, manage logistics, and tap into nearby construction and manufacturing projects.
Requirements Overview
To legally start a steam and air‑conditioning supply business in Longueuil, the most critical requirements are the Business Number (BN) registration, the Quebec Enterprise Number (NEQ) registration, the Quebec Business Registration (REQ), and a valid Business Licence. These registrations and licences are mandatory to operate legally in Quebec; you cannot run the business without them. They establish your legal identity with federal and provincial authorities, allow you to invoice customers, and ensure you can file taxes correctly.
Operationally, you’ll need health‑ and safety‑focused requirements and the right permits. If you hire staff, register with the Quebec CNESST for workers’ compensation and maintain safety training and records. The City of Longueuil requires a Business Licence to conduct business on its streets and properties. If you structure the business as a partnership or a corporation, you’ll also need the corresponding Partnership Registration or Quebec Corporation Registration to reflect the chosen form of business.
Business registration and tax numbers come next. The BN covers federal tax accounts and is linked to the CRA for payroll deductions and GST/HST purposes. The NEQ and REQ are provincial registrations with Registraire des entreprises in Quebec. You’ll also handle GST/HST registration if your taxable supplies meet the threshold, and you’ll register for payroll deductions as an employer.
Next steps: confirm your business structure, then start the registrations (BN, NEQ, REQ) and secure a Longueuil business licence. Set up CNESST enrollment and payroll‑deduction processes, and complete the GST/HST registration as soon as you’re required. With these in place, you’ll be well positioned to serve customers in Longueuil and grow your steam and air‑conditioning supply business.
Detailed Requirements
Here are the specific requirements for starting a steam and air-conditioning supply in Longueuil:
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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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Quebec Enterprise Number (NEQ) Registration RequiredRegistration of business with the Quebec Enterprise Registrar. Register with Registraire des entreprises du Québec: 1. Access quebec.ca/entreprises services 2. Complete declaration of registration online 3. Pay registration fee ($38 sole proprietorship, $367 corporation) 4. Receive NEQ (Numéro d'entreprise du Québec) Annual registration fee: $35 (exempt first 2 years). Annual update declaration required. 30-day deadline for changes.
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Quebec Business Registration (REQ - Registraire des entreprises) RequiredAll businesses operating in Quebec must register with the Registraire des entreprises du Québec (Quebec Enterprise Registrar). This includes sole proprietorships, partnerships, and corporations. Registration provides a Quebec Enterprise Number (NEQ) which is required for all business activities including banking, licensing, and tax purposes. Unlike other provinces, registration is mandatory for ALL businesses in Quebec, not just those with a business name different from the owner. Registration can be completed online. Annual declarations must be filed to keep the registration current. Register with Registraire des entreprises within 60 days of starting business. Required for sole proprietors operating under trade name, partnerships, and corporations. $39 for sole proprietorship, $60 for partnership. Receive NEQ (Quebec Enterprise Number).
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Business Licence RequiredGeneral business licence required to operate a business in Ville de Longueuil. Apply to Ville de Longueuil 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 Ville de Longueuil Business Licensing for specific requirements. Home-based businesses may have different requirements. Annual renewal required.
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Partnership Registration ConditionalRequired if operating as partnership. Registration of general or limited partnerships in Quebec. Register partnership with Registraire des entreprises: 1. Complete declaration of registration 2. Provide partner information 3. Submit registration 4. Pay registration fee General and limited partnerships. NEQ assigned upon registration. Annual update declaration required.
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Quebec Corporation Registration ConditionalRequired if incorporating in Quebec. Incorporation of a company under Quebec law. Incorporate through Registraire des entreprises: 1. Conduct name search (NUANS) 2. Prepare articles of incorporation 3. Submit through quebec.ca or registry office 4. Pay incorporation fee ($367) Annual reporting required. Must file annual update declaration. Federal incorporation alternative available ($200).
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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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Quebec CNESST Employer Registration (Workers Compensation) ConditionalRequired if you have employees in Quebec. Employers in Quebec must register with the CNESST (Commission des normes, de l'équité, de la santé et de la sécurité du travail) and maintain coverage for workers. CNESST provides insurance coverage for workplace injuries and occupational diseases under Quebec's workers' compensation system. Most employers are required to register within 60 days of hiring their first worker. Employers pay contributions (premiums) based on their business activity classification and assessable payroll. Register with CNESST within 60 days of hiring first employee. CNESST provides workplace health and safety coverage. Premium rates based on industry classification. Annual declaration of wages required by March 14.
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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