How to Start an HVAC Business in South Carolina (2026)

Last updated: February 25, 2026

Starting an HVAC business in South Carolina requires a Mechanical Contractor License from the SC Department of Labor, Licensing and Regulation (LLR), Contractors’ Licensing Board. South Carolina has two license groups: Group I (residential, under 15 tons) and Group II (commercial, unlimited). Both require passing PSI exams (trade knowledge and business/law), documenting 4 years of experience as a journeyman, and maintaining a $5,000 surety bond plus $300,000 in general liability insurance. All technicians handling refrigerants must hold EPA Section 608 certification. The license itself costs $200 for application plus $200 every two years for renewal, and there is no reciprocity with other states – you must test and qualify independently in South Carolina.

HVAC Requirements in South Carolina at a Glance

Requirement	Agency	Cost	Timeline
LLC Formation	SC Secretary of State	$125 (online)	1-2 business days
Mechanical Contractor License (Group I or II)	SC LLR Contractors’ Licensing Board	$200 (application)	4-8 weeks after exam
PSI Trade Exam	PSI Testing	$89	Schedule after applying
PSI Business & Law Exam	PSI Testing	$89	Schedule after applying
Surety Bond	Bonding Company	$100-$300/year	Required before license issuance
General Liability Insurance	Private Carrier	$1,200-$3,500/year	$300,000 minimum required
EPA Section 608 Certification	EPA-approved testing organization	$20-$150	Same day (online) or at testing center
Local Business License	City/County Government	$50-$500+/year	Varies by jurisdiction
Workers’ Compensation Insurance	Private Carrier	~$200-$350/month per employee	Required at 4+ employees
License Renewal (biennial)	SC LLR	$200 every 2 years	Due by license expiration date

How to Start an HVAC Business in South Carolina (Step by Step)

Step 1: Gain Required Experience

South Carolina requires 4 years of verifiable experience as a journeyman HVAC technician before you can apply for a mechanical contractor license. Experience must be documented with:

Employer verification letters on company letterhead
Details of work performed (installation, service, repair of heating, cooling, refrigeration systems)
Dates of employment and job titles
Supervisor names and contact information

Experience substitutions: Law enforcement or military HVAC experience may count. Completion of an accredited HVAC program may substitute for up to 2 years of the experience requirement. Contact LLR at 803-896-4686 to verify eligibility before applying.

Step 2: Form Your Business Entity

Register an LLC at Business Entities Online ($125). Apply for a free federal EIN. Your business entity must be established before you apply for the contractor license.

Step 3: Apply for Your Mechanical Contractor License

Apply online through the SC LLR Online Services portal. You must choose a license group:

License Group	Scope of Work	Typical Use
Group I – Residential	Heating, air conditioning, refrigeration systems under 15 tons	Residential HVAC, small commercial units
Group II – Commercial	Heating, air conditioning, refrigeration systems unlimited capacity	All residential and commercial work

Application requirements:

Completed application with $200 non-refundable fee
Financial statement showing net worth of at least $10,000
Verification of 4 years of experience (employer letters)
Proof of business entity registration (LLC or corporation)
Social Security number or ITIN

After your application is approved, you’ll receive authorization to schedule your exams.

Step 4: Pass the PSI Exams

South Carolina requires two exams administered by PSI:

Exam	Cost	Questions	Passing Score
Trade Knowledge Exam	$89	80 questions	70% (56 correct)
Business & Law Exam	$89	40 questions	70% (28 correct)

Trade exam topics: Heating systems, air conditioning systems, refrigeration, load calculations, duct design, electrical circuits, ventilation, safety, codes (NFPA 70, IMC, IRC).

Business & Law exam topics: SC contractor laws, lien laws, insurance requirements, permitting, OSHA regulations, EPA regulations, business management, estimating, contracts.

Study resources: PSI offers candidate handbooks with content outlines. Consider HVAC Excellence practice exams, trade association study guides, or commercial exam prep courses (~$200-$500).

No reciprocity: South Carolina does not have reciprocity with any other states. Even if you hold a contractor license elsewhere, you must pass the SC exams independently.

Step 5: Obtain Surety Bond and Insurance

Before LLR issues your license, you must provide proof of:

Surety bond: Minimum $5,000. Protects consumers against breach of contract or failure to comply with SC contractor laws. Cost: $100-$300/year depending on credit score.
General liability insurance: Minimum $300,000 per occurrence. Covers property damage and bodily injury. Typical cost: $1,200-$3,500/year depending on coverage limits and business size.

Your insurance company or bonding agent will provide certificates of insurance and bond directly to LLR (or you can upload via the online portal).

Step 6: Get EPA Section 608 Certification

All technicians who handle refrigerants (install, service, repair, or dispose of equipment containing refrigerants) must hold EPA Section 608 certification. This is a federal requirement, not specific to South Carolina.

Certification Type	Scope	Typical Cost
Type I	Small appliances (5 lbs or less)	$20-$50
Type II	High-pressure systems (most residential/commercial AC and heat pumps)	$20-$50
Type III	Low-pressure systems (chillers, some commercial refrigeration)	$20-$50
Universal	All of the above	$50-$150

Most HVAC contractors obtain Universal certification. Testing is available online or at approved testing centers. The certification never expires. Popular providers: ESCO Institute, MaintenanceX, TechniCert.

NEW for 2026: EPA is phasing down HFC refrigerants and transitioning to A2L refrigerants (like R-454B, R-32). Technicians working with A2L systems need additional safety training on mildly flammable refrigerants, leak detection, and ventilation.

Step 7: Get Local Business Licenses and Permits

Each city and county in South Carolina requires its own business license with fees based on gross income. Use the MASC lookup tool to determine requirements. Additionally, most jurisdictions require building permits for HVAC installations and replacements – check with your local building department.

Ongoing Requirements

License renewal: Every 2 years. Renewal fee is $200. Due by the expiration date on your license.
Continuing education: 4 hours of approved continuing education per renewal cycle. Topics must relate to the HVAC trade or business management.
Bond and insurance: Must remain active and in force at all times. Notify LLR immediately if coverage lapses.

Cost to Start an HVAC Business in South Carolina

Item	Cost	Notes
LLC Formation	$125	Online via Secretary of State; no annual report
Federal EIN	Free	IRS, immediate online
Mechanical Contractor License Application	$200	LLR Contractors’ Licensing Board
PSI Trade Exam	$89	80 questions, 70% to pass
PSI Business & Law Exam	$89	40 questions, 70% to pass
Exam Prep Materials (optional)	$200-$500	Study guides, practice exams, courses
Surety Bond ($5,000)	$100-$300/year	Required before license issuance
General Liability Insurance ($300,000)	$1,200-$3,500/year	Required before license issuance
EPA 608 Universal Certification	$50-$150	Federal requirement; never expires
Local Business License	$50-$500+/year	Each city/county where you operate
Tools & Equipment	$5,000-$20,000+	Gauges, recovery machines, vacuum pumps, hand tools, ladder, etc.
Service Vehicle	$10,000-$50,000	Van or truck with tool storage and equipment racks
License Renewal (biennial)	$200 every 2 years	Plus 4 hours of continuing education

Estimated startup cost (excluding vehicle and major equipment): $2,500-$6,000. With a used service vehicle and basic tools, total startup can range from $15,000-$75,000+. Ongoing costs include insurance, bond renewal, license renewal, fuel, marketing, and continuing education.

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Frequently Asked Questions

Do I need a license to do HVAC work in South Carolina?

Yes. South Carolina requires a Mechanical Contractor License from the SC LLR Contractors’ Licensing Board for anyone performing HVAC installation, repair, or service for compensation. You need 4 years of experience, must pass two PSI exams, and maintain a $5,000 bond plus $300,000 in general liability insurance.

What is the difference between Group I and Group II licenses?

Group I (residential) covers heating, air conditioning, and refrigeration systems under 15 tons. Group II (commercial) covers systems of unlimited capacity. If you plan to work on large commercial systems, rooftop units, or chillers, you need Group II. Most contractors start with Group I and upgrade later.

Does South Carolina have reciprocity with other states?

No. South Carolina does not recognize HVAC contractor licenses from other states. Even if you are licensed elsewhere, you must meet SC’s experience requirements, pass both PSI exams, and fulfill all bonding and insurance requirements independently.

What is EPA Section 608 certification?

EPA Section 608 is a federal certification required for all technicians who handle refrigerants. Types: I (small appliances), II (high-pressure systems), III (low-pressure systems), or Universal (all types). Most HVAC contractors obtain Universal ($50-$150). The certification never expires. New for 2026: A2L refrigerant safety training is becoming critical as the industry transitions away from HFC refrigerants.

How much does it cost to get an HVAC license in South Carolina?

The license application costs $200, plus $89 per exam (two exams = $178). Add in a $5,000 surety bond ($100-$300/year), $300,000 general liability insurance ($1,200-$3,500/year), and EPA 608 certification ($50-$150). Total pre-licensing costs: approximately $1,700-$4,500 for the first year, not including LLC formation or exam prep materials.

How long does it take to get an HVAC license in South Carolina?

After submitting your application, expect 2-4 weeks for LLR to review and authorize you to schedule exams. After passing both exams and submitting bond/insurance proof, license issuance typically takes another 2-4 weeks. Total timeline: 4-8 weeks from application to licensure, assuming you pass exams on the first attempt.

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About the Author

Robert Smith has run a licensed private investigation firm for 8 years from the Florida-Georgia state line - where he learned firsthand how wildly business licensing rules differ between states just miles apart. He personally researched requirements across all 50 states and D.C., reviewing hundreds of government sources over hundreds of hours to build guides he wished existed when he started. Not a lawyer or accountant - just a business owner who has done the research so you don't have to.

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