How to Start an HVAC Business in Maryland (2026)

Last updated: February 25, 2026

Starting an HVAC business in Maryland requires a state contractor license from the Maryland Board of HVACR Contractors – there is no shortcut around this. You need at minimum a Limited Contractor, Master Restricted, or Master HVACR license, which requires years of documented field experience and passing a PSI exam. Maryland also mandates specific insurance minimums ($300,000 general liability and $100,000 property damage) with the HVACR Board named as certificate holder. On the federal side, EPA Section 608 certification is required for anyone handling refrigerants. This guide walks through every requirement using official Maryland sources so you can get licensed and operating legally.

HVAC Business Requirements in Maryland at a Glance

Requirement	Agency	Cost	Timeline
HVACR Contractor License (Limited or Master)	MD Board of HVACR Contractors	$94.50	After experience + exam
PSI Master HVACR Exam	PSI Services	$150	Schedule after application approval
EPA Section 608 Certification	EPA-approved testing center	$20-$40	Same day (lifetime credential)
General Liability Insurance	Private Carrier	$500-$2,000/year	Before license issuance
LLC Formation (Articles of Organization)	MD SDAT	$100 (paper) / $150 (online)	7-10 business days (paper) / faster online
Annual Report	MD SDAT	$300/year	Due by April 15 annually
Workers’ Compensation Insurance	Private Carrier / IWIF	$2,500-$8,000/year per employee	Before hiring first employee
Federal EIN	IRS	Free	Immediate (online)

How to Start an HVAC Business in Maryland (Step by Step)

Step 1: Get Your HVACR Experience and Journeyman License

Maryland requires documented experience before you can get a contractor-level HVACR license. The path to a Master license follows a strict progression:

Apprentice: Register with the Board ($12 fee). Work 4 years (minimum 6,000 hours) under a licensed Journeyman or Master
Journeyman: Pass the Journeyman exam after completing apprenticeship ($25 license fee). You can perform HVAC work but cannot pull permits or operate independently
Master: Work 3 additional years under a Master licensee (minimum 1,875 hours in the 12 months before applying), then pass the Master exam ($94.50 license fee)

Maryland offers six license levels total. To own and operate an HVAC business, you need at minimum a Limited Contractor, Master Restricted, or Master license. The Restricted licenses ($25-$31.50) limit you to specific areas of HVAC work, while the full Master and Limited Contractor licenses ($94.50 each) cover all HVACR work.

Full requirements are published on the HVACR Board license requirements page.

Step 2: Pass the PSI Master HVACR Exam

The Master HVACR exam is administered by PSI Services. Exam details:

Fee: $150 (paid directly to PSI)
Format: 100 multiple-choice questions
Time limit: 240 minutes (4 hours)
Passing score: 70%
Scheduling: After the Board approves your exam application

You must apply to the HVACR Board for exam approval before scheduling with PSI. The Board verifies your experience documentation before granting exam eligibility.

Step 3: Get EPA Section 608 Certification

Federal law requires EPA Section 608 certification for anyone who purchases, handles, or recovers refrigerants. The Universal certification (covering Types I, II, and III) is recommended for HVAC contractors since it covers all equipment types.

Cost: $20-$40 (testing center fee only – no EPA fee)
Valid: Lifetime (no renewal required)
Note on AIM Act: The R-410A refrigerant phasedown is active as of 2026. Familiarize yourself with the transition to lower-GWP alternatives like R-454B

Step 4: Form Your Business Entity

Register an LLC with the Maryland State Department of Assessments and Taxation (SDAT). Filing fees are $100 by mail or $150 online. Online filings are processed faster but cost more.

Apply for a free federal EIN from the IRS (immediate online). You need this to open a business bank account, hire employees, and file taxes.

Maryland requires an annual report filed with SDAT each year by April 15. The filing fee is $300/year – significantly higher than most states.

Step 5: Get Required Insurance

Maryland mandates specific insurance minimums for HVACR contractor licenses. You cannot receive your license without proof of insurance on file with the Board.

General liability: $300,000 minimum
Property damage: $100,000 minimum
Combined minimum: $400,000
Certificate holder: The HVACR Board must be named as certificate holder on your policy

Typical costs for an HVAC contractor policy run $500-$2,000/year depending on your coverage limits, claims history, and revenue. Full insurance requirements are listed on the HVACR Board insurance requirements page.

Workers’ compensation is required in Maryland for any business with one or more employees. HVAC work carries higher workers’ comp rates due to the physical nature of the work – expect to pay $2,500-$8,000/year per employee.

Important: HVAC-only work does not require a Maryland Home Improvement Commission (MHIC) license. The HVACR Board license is separate from MHIC. However, if you perform work outside of HVAC (such as general contracting or remodeling), you would need MHIC registration for that non-HVAC work.

Step 6: Check County-Level Requirements

Some Maryland counties require a separate county license in addition to your state HVACR license. Notably:

Anne Arundel County: Requires both a county HVAC license and a state HVACR license
Prince George’s County: Requires both a county HVAC license and a state HVACR license

Check the HVACR Board county requirements page for the full list. Contact your county permits office before starting work to confirm local requirements.

HVACR License Renewal in Maryland

Maryland HVACR licenses are renewed biennially (every two years). All licenses expire on October 1 of odd-numbered years (next renewal: October 1, 2027). Contractor-level renewal fees are approximately $75.

Maryland does not require continuing education for HVACR license renewal. You must maintain valid insurance coverage throughout your license period – if your insurance lapses, your license is suspended automatically.

Cost to Start an HVAC Business in Maryland

Item	Cost	Notes
HVACR Master/Limited Contractor License	$94.50	One-time application fee
PSI Master Exam Fee	$150	Paid to PSI Services
EPA Section 608 Certification	$20-$40	Lifetime, no renewal
LLC Formation (Articles of Organization)	$100-$150	$100 paper / $150 online via SDAT
Federal EIN	Free	IRS, immediate online
General Liability + Property Damage Insurance	$500-$2,000/year	$300K/$100K minimums required by Board
Workers’ Comp Insurance (per employee)	$2,500-$8,000/year	Required for 1+ employees
SDAT Annual Report	$300/year	Due April 15 each year
License Renewal	~$75/biennial	Expires Oct 1, odd years

Estimated total startup cost: $865-$2,385 (licensing, exam, EPA certification, LLC formation, and first-year insurance for a solo operator; does not include tools, vehicle, or equipment)

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Frequently Asked Questions

Do I need a license to start an HVAC business in Maryland?

Yes. Maryland requires an HVACR contractor license from the Board of HVACR Contractors (Department of Labor). To own and operate a business, you need at minimum a Limited Contractor, Master Restricted, or Master license. This requires years of documented experience and passing a PSI exam.

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

The full path from scratch takes approximately 7 years – 4 years as an Apprentice (6,000 hours) to qualify for Journeyman, then 3 more years under a Master (1,875 hours in the prior year) to qualify for the Master exam. If you already hold equivalent experience or an out-of-state license, the timeline may be shorter.

Do I need an MHIC license to do HVAC work in Maryland?

No. HVAC-only work is governed by the HVACR Board, not the Maryland Home Improvement Commission. Your HVACR contractor license covers all heating, ventilation, air conditioning, and refrigeration work. However, if you perform non-HVAC home improvement work (such as general contracting), you would need a separate MHIC registration for that work.

What insurance is required for an HVAC business in Maryland?

The HVACR Board requires a minimum of $300,000 general liability and $100,000 property damage coverage ($400,000 combined). The Board must be named as certificate holder on your policy. Workers’ compensation is also required if you have one or more employees. Typical HVAC contractor insurance costs $500-$2,000/year.

Do I need a county license in addition to my state HVAC license?

It depends on where you work. Some counties – notably Anne Arundel and Prince George’s County – require both a county HVAC license and your state HVACR license. Check the HVACR Board’s county requirements page or contact your county permits office before starting work.

How much does it cost to start an HVAC business in Maryland?

Licensing and insurance alone cost approximately $865-$2,385, including the contractor license ($94.50), PSI exam ($150), EPA 608 certification ($20-$40), LLC formation ($100-$150), and first-year insurance ($500-$2,000). This does not include tools, a service vehicle, or equipment, which can add $10,000-$50,000 or more depending on your service scope.

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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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