What Are Maryland's Contractor Licensing Rules?

Is a contractor license required in Maryland?

Yes, for home improvement work — but Maryland splits construction into several genuinely separate licensing systems rather than one general contractor license. A person can't act as a home improvement contractor or sell a home improvement in Maryland without a Maryland Home Improvement Commission (MHIC) contractor or salesperson license, and there's no dollar threshold behind this — the trigger is the type of work, not project value. Licensed electricians, plumbers, and HVAC contractors working within their own trade are specifically exempted from needing this license on top of their own. New home construction is handled separately: builders selling newly constructed homes register through the Attorney General's Consumer Protection Division rather than holding an MHIC license, and have to carry at least $100,000 in general liability insurance. There's no statewide commercial general contractor license at all — commercial construction is governed by local permits and the applicable trade licenses.

Which agency regulates it?

Genuinely split across several bodies, more so than most states. MHIC regulates home improvement contractors and salespeople. New home builder registration runs through the Maryland Attorney General's Consumer Protection Division, a completely different agency. Electrical licensing is the State Board of Electricians, and HVAC licensing is the State Board of HVACR Contractors — both statewide, though Anne Arundel and Prince George's Counties each require their own additional county HVACR license on top of the state one. Plumbing is the most fragmented: Baltimore County and the WSSC district (Montgomery and Prince George's Counties) are exempt from the state plumbing license entirely and run their own separate licenses and plumbing codes — a state license doesn't authorize work there, and a WSSC or Baltimore County license doesn't authorize work anywhere else in the state.

Where can you find the actual laws?

Home improvement licensing is Business Regulation Article Title 8 — the licensing requirement and its exemptions are § 8-301, the Home Improvement Guaranty Fund is § 8-405, and the criminal penalty for unlicensed practice is § 8-601. The corporate and partnership licensure rule, requiring a licensed individual in responsible charge of the business's work, is Code of Maryland Regulations (COMAR) 09.08.01.04. New home builder registration is Business Regulation Article Title 4.5, §§ 4.5-301 and 4.5-302. Electrical licensing, including the qualified agent assignment rule, is Business Occupations and Professions Article Title 6, § 6-309. MHIC and the State Board of Electricians each publish their own current licensing instructions directly.

What does it take to get licensed?

MHIC contractor applicants need at least two years of home improvement, construction, or related educational experience, and have to pass the MHIC contractor exam. Maryland reviews each applicant's financial solvency — net worth, credit history, and the size of the proposed business — and anyone who doesn't meet those guidelines can substitute a surety bond or an indemnitor. Contractors have to carry at least $50,000 in liability insurance, maintained continuously through the two-year license term. A sole proprietor is automatically the business's qualifying individual; a corporation or partnership has to employ one individually licensed contractor who's in responsible charge of its home improvement work, and the business and that individual are jointly and severally liable for license fees, the bond requirement, and reimbursing the Guaranty Fund for either party's violations. Electrical, plumbing, and HVAC licensing each run their own separate experience, exam, and renewal requirements through their own boards.

What are the penalties for operating without a license?

Real, and structured as a criminal matter rather than an administrative one. Unlicensed home improvement contracting is a misdemeanor under § 8-601(c): up to $1,000 and six months in jail for a first conviction, up to $5,000 and two years for a second or later conviction. Maryland courts have held that each separate customer transaction can support its own charge, so the exposure compounds with every unlicensed job. Separately, and often more consequential in a dispute: Maryland courts have repeatedly held that an unlicensed contractor can't enforce a home improvement contract against the homeowner or establish a mechanic's lien on the property, because the license requirement exists to protect the public rather than to raise revenue. That bar doesn't extend to every relationship in the chain, though — a licensed general contractor can still enforce a contract against an unlicensed subcontractor.

Does Maryland have reciprocity with other states?

Not for home improvement — MHIC states directly that a license from another state doesn't substitute for Maryland's own, and every applicant has to pass Maryland's contractor exam regardless of what they already hold elsewhere. The specialty trades are different. Electrical licensing recognizes a master license from Virginia, West Virginia, Delaware, or D.C., and a journeyman license from Virginia specifically, each with its own minimum years of standing and a requirement that the original license was earned by exam rather than by a prior reciprocity deal. HVAC licensing has reciprocal agreements with Delaware and Virginia. None of this touches the home improvement license itself.

Is it legal to rent or lease a license in Maryland?

No, and Maryland's home improvement and electrical systems each have their own real version of this rule. For home improvement, COMAR 09.08.01.04 requires a corporation or partnership to employ an individually licensed contractor who is in responsible charge of its home improvement work — not simply named on the license — and ties the business and that individual together with joint and several liability for fees, bonding, and Guaranty Fund repayment. For electrical contracting, the role is called a Qualified Agent, and the State Board of Electricians enforces § 6-309 to mean a license can't be assigned to two different companies at the same time — reassigning a Qualified Agent to a new company automatically invalidates their registration with the previous one. Across both systems, a business and a licensed individual with no real working relationship between them aren't satisfying what the rule describes.

How do you find a qualifier or a business in Maryland?

findQualifier.com is a public, searchable board of licensed professionals advertising their availability to work as a qualifier, by state and trade. Browse available qualifiers in Maryland, browse Maryland businesses looking to hire, or post a listing.