Maryland Workers' Comp Insurance for Plumbing Contractors

Almost all Maryland employers with one or more employees must carry workers' compensation insurance, purchased either from any insurer licensed to write it in Maryland or from Chesapeake Employers' Insurance Company, or by qualifying as an approved self-insurer. There is no broad small-business exemption based on headcount alone; coverage is generally required from the first employee. See the Maryland Workers' Compensation Commission's employer guidance.

Common codes for this work include 5183 Plumbing Contractor; 5606 Construction Executive / Supervisor; 7380 Commercial Drivers & Messengers. Maryland uses NCCI class codes, so the codes below are the ones carriers typically assign to this work in Maryland.

Sole proprietors, partners, LLC members, and corporate officers are presumed to need coverage unless they take affirmative action to exclude themselves; simply not buying a policy isn't enough to be considered exempt. An owner who wants to opt out must own at least 20% of the business, actively work in it, and file Maryland's exclusion form (IC-16) online with the Workers' Compensation Commission. Until that exclusion is on file, these owners are treated as covered employees for compliance purposes.

Employers who fail to secure required coverage face a fine of not more than $10,000, and the officers responsible for a corporation's general management in Maryland can be held personally liable for that fine. Maryland's Workers' Compensation Commission has also stepped up enforcement around owner exclusion filings specifically, with initial fines in the $250-$2,500 range and hearing-stage fines that can run $10,000-$25,000 for businesses without either an active policy or a properly filed exclusion. An injured worker at an uninsured employer can pursue benefits through Maryland's Uninsured Employers' Fund, which then seeks reimbursement from the employer.

Price is driven by payroll in each class code, the Maryland rates filed for those codes, your claims history (experience modification), and underwriting factors such as split between new-construction rough-in work and service/repair calls; supervisory payroll versus hands-on installation and repair crew; whether crews perform trenching or excavation work directly. We compare carriers so you can see what you qualify for.

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No — both fall under the same plumbing classification, which covers the shop, yard, and field operations of a plumbing contractor together regardless of whether the work is new-construction rough-in or a service call.

It doesn't create a separate classification, but carriers do ask about trenching and excavation practices directly, since cave-in exposure is a well-documented risk on sitework and repair digs.

No. This coverage is written for contractors with W-2 employees on payroll; owner-only certificate ('ghost') policies are not offered.

Yes, in almost all cases. Maryland requires coverage for essentially all employers with one or more employees, with no broad exemption for small headcount.

Yes, but only by actively filing exclusion form IC-16 with the Workers' Compensation Commission after meeting ownership and active-work requirements; simply declining to buy a policy isn't enough to be considered exempt.