General liability minimum
Maryland has a clear statewide GL requirement for home improvement contractors. Effective June 1, 2024, Maryland home improvement contractors must maintain general liability insurance of at least $500,000. That applies to MHIC-covered residential improvement work, not every commercial construction scenario. The citation trail is Md. Code, Bus. Reg. §§ 8-302.1, 8-301. Treat the quoted number, when one exists, as a licensing floor rather than a safe project limit. A homeowner should request a current Certificate of Insurance showing the exact legal name, policy number, effective dates, occurrence and aggregate limits, products/completed operations, and any additional-insured wording required by the contract or permit office. Where Maryland does not publish a statewide GL minimum, ProFix describes market ranges only as verification guidance, not as law. Roof, structural, excavation, mold, fire, solar and multi-trade projects should usually be reviewed for umbrella or excess liability because standard GL can contain residential, roofing, pollution, subsidence or subcontractor exclusions.
Workers' compensation
Workers' compensation is required for Maryland employers with covered employees. Contractors should not rely on an informal no-employee statement; MHIC, permit offices and prime contractors may require a policy or formal exemption. Cite Md. Code, Lab. & Empl. §§ 9-201, 9-402. Coverage is written through private carriers, Chesapeake Employers' Insurance Company or approved self-insurance. The certificate should match the MHIC license entity and Maryland operations. For residential hiring, the key question is not only whether the contractor has a policy, but whether the people entering the home are covered by that policy. Ask whether subcontractors are employees, independent businesses with their own WC, or excluded owners. If the contractor says it is exempt, request the state exemption form or written statutory basis and keep it with the contract file. A GL policy does not pay statutory wage-loss and medical benefits for an injured worker, and an occupational accident policy is not always a substitute for workers' compensation.
Bonding
MHIC applicants who do not meet financial solvency guidelines can use an indemnitor or surety bond. Maryland forms include a $30,000 bond route and a $100,000 bond route when the applicant does not provide financial statements. The legal anchor is Md. Code, Bus. Reg. §§ 8-302, 8-303. A license bond is not the same thing as liability insurance: it is a surety promise that may reimburse a claimant only after a covered violation, and the surety normally seeks reimbursement from the contractor. It also is not always a performance bond guaranteeing completion of one homeowner's project. For residential work, ask who the obligee is, the bond amount, the effective dates, cancellation notice, and whether the bond is tied to the state license, a city registration, a right-of-way permit or a specific contract. For public or large commercial work, separate bid, performance and payment bonds can be required even when no residential license bond exists.
Residential vs. commercial
MHIC covers residential home improvement, including repairs, remodeling and additions. Maryland does not use MHIC as a general commercial-contractor license, so commercial tenant work depends on local permits, trade licenses and owner insurance requirements. For insurance review, residential work should be tested against the homeowner contract, permit office, lender, HOA or condo requirements, and the license classification. Commercial work usually scales faster because leases, architects, public owners and general contractors often require additional insured status, waiver of subrogation, primary-and-noncontributory wording, higher auto limits and umbrella coverage. A contractor who is legal for a small repair may still be underinsured for a structural addition, roof replacement, fire restoration or job involving subcontractors.
Specialty trade carve-outs
Electrical, plumbing, HVACR, asbestos, lead and mold-related work have separate Maryland boards or environmental rules. A MHIC license does not authorize a contractor to self-perform regulated electrical, plumbing or HVACR work without the correct trade license. Federal overlays still matter in every state: renovation of pre-1978 painted surfaces can require EPA Renovation, Repair and Painting compliance under 40 C.F.R. Part 745, and asbestos disturbance can trigger OSHA construction asbestos rules at 29 C.F.R. § 1926.1101 plus state notification or licensing. Specialty insurance should match the hazard. Ask about professional liability for design-build advice, pollution or microbial coverage for mold and sewage, rigging/crane coverage for HVAC rooftop units, and hot-work controls for welding or torch-down roofing. A general liability COI with a low premium can be misleading if the trade that caused the loss is excluded.
How to verify coverage
Search MHIC for license status, complaints and salesperson links. Request the $500,000 GL certificate, WC proof or exemption, and any solvency bond. The Maryland Insurance Administration can confirm insurer authority and producer licensing. Use three documents together: the state or local license record, the COI, and the bond or workers' compensation proof. The license board URL for Maryland is https://labor.maryland.gov/license/mhic/, and the insurance regulator URL is https://insurance.maryland.gov/. Match the business name, DBA, address and license number across all documents; mismatches are the fastest way to spot borrowed insurance or an unlicensed subcontractor. Call the producer listed on the COI, not a phone number supplied only in a text message. For larger residential jobs, require updated certificates before each draw and before final payment. This is an insurance-compliance checklist, not legal advice, and the local permit office can impose stricter conditions than the statewide baseline.
Use insurance checks before comparing bids
Confirm the license, COI, workers' compensation status, and bond before paying a deposit.
Source: ProFix Editorial Team. Last updated 2026-06-09. This guide is informational and focuses on contractor insurance verification, not legal advice.