Minor Work — Maryland license requirements

Verified 2026-10-059 official sources4 classification relations8 scope assertionsIndexation gate: passed

01 The project

The starting point is the work itself — Minor Work in Maryland. The job determines which trades are involved, and the trades determine which license classifications may be required.

No project components are seeded for this project — we do not invent component lists without evidence.

02 Jurisdiction

This project is evaluated for Maryland — the home-improvement licence state. There is no project-value general-contractor licence: the MHIC home improvement contractor licence (Business Regulation Art. Title 8) covers residential alteration/remodel/repair on 1–3 unit buildings, the trades are licensed individually (electrician BOP Title 6, plumber/gas fitter Title 12, HVACR BR Title 9A), and new-home construction is a Home Builder Registration. Maryland jurisdiction page.

Limitation — local permit fees are unread; no unconditional statewide bond

Local building and permit fees, and the electrician/plumbing/HVACR/Home-Builder licence fees, were not read — LOCAL_AUTHORITY_REQUIRED / NOT_VERIFIED. Maryland imposes no unconditional statewide surety bond on these credentials (an MHIC applicant who fails the solvency guidelines may buy a bond or obtain an indemnitor). State requirements are not the complete story for any locality.

03 Trade → license

Relations below are recorded per state — only this jurisdiction's classifications are shown.

Trades involved: no seeded components — trade resolution follows from the classification relations below.

May require HOME-IMPROVEMENT-CONTRACTOR — Home Improvement Contractor (MHIC) confirmed S-MD-BR-8-301 rule MD-MHIC-LICENSE
Any person who acts as a contractor performing or agreeing to perform a home improvement must hold the MHIC licence (§8-301(a)) — including small residential repairs (painting, patios, driveways, permanent sheds/playgrounds are home improvement; see §8-101(g)). Carpet, demolition, interior window treatments and wall-mounted TVs are NOT home improvement.
May require MASTER-PLUMBER — Master Plumber (Gas Fitter) confirmed S-MD-BOP-12-101 rule MD-PLUMBING-LICENSE
CONDITIONAL — applies only when the minor job touches plumbing/gas: a Maryland Board of Plumbing licence is required (master plumber provides plumbing AND natural gas services). State licence required except Baltimore County and the WSSC area.
May require MASTER-ELECTRICIAN — Master Electrician confirmed S-MD-ELEC-MAIN rule MD-ELECTRICAL-LICENSE
CONDITIONAL — applies only when the minor job touches electrical work: all electrical work must be performed by a licensed electrician and §6-605(b) requires a licensed master or journeyperson present at the job site.
May require MASTER-HVACR — Master HVACR Contractor confirmed S-MD-HVACR-NOTICE rule MD-HVACR-LICENSE
CONDITIONAL — applies only when the minor job touches HVACR: all individuals providing HVACR services must hold a Board licence.

04 Scope

What the official sources say about the work involved — typed assertions, never a boolean "covers". Interpretations are marked as such.

Officially excluded HOME-IMPROVEMENT-CONTRACTOR Construction Of A New Home (may_not_perform) Business Regulation §8-101(g)(3)(i) S-MD-BR-8-101
Officially excluded HOME-IMPROVEMENT-CONTRACTOR No Mhic License For A Licensed Electrician Plumber Hvacr Contractor Or Architect Acting Within Scope (requires) Business Regulation §8-301(c)(4) S-MD-BR-8-301
Officially excluded HOME-IMPROVEMENT-CONTRACTOR Subcontracting Home Improvement Work For An Mhic Licensed Contractor Without A License (may_perform) MHIC home page (subcontractor category eliminated) S-MD-MHIC-MAIN
Officially included MASTER-ELECTRICIAN Provide Electrical Services In All Aspects Of The Electrical Trade (may_perform) Business Occupations and Professions §6-101(g),(j); §6-605(b) S-MD-BOP-6-101
Officially included MASTER-PLUMBER Provide Plumbing Services And Natural Gas Services (may_perform) Business Occupations and Professions §12-101(l) S-MD-BOP-12-101
Officially included MASTER-HVACR Provide Heating Ventilation Air Conditioning And Refrigeration Services (may_perform) Business Regulation §9A-101(p),(r) S-MD-BR-9A-101
Officially excluded HOME-IMPROVEMENT-CONTRACTOR Work On Apartment Buildings With Four Or More Single Family Units Or Common Area Condominiums (may_not_perform) Business Regulation §8-101(g)(3)(v)-(vi) S-MD-BR-8-101
Officially included HOME-IMPROVEMENT-CONTRACTOR Act As A Contractor Performing Or Agreeing To Perform A Home Improvement For An Owner (may_perform) Business Regulation §8-301(a); §8-101(c),(g) S-MD-BR-8-301
The MHIC licence is a scope licence, not a project-value GC licence: it is the credential a homeowner's remodeler must hold.

05 Requirements

Requirement	Kind	Statement	Source
A contractor licence is required to act as a contractor or sell a home improvement in Maryland Business Regulation §8-301(a)-(b) verbatim (read 2026-10-05)	license	Business Regulation §8-301(a) verbatim: 'Except as otherwise provided in this title, a person must have a contractor license whenever the person acts as a contractor in the State.' §8-301(b): a person must have a salesperson license or contractor license whenever the person sells a home improvement in the State. The MHIC home-improvement contractor licence is the business-scope credential for residential alteration, remodeling, repair or replacement on buildings used as a residence.	S-MD-BR-8-301 Source S-MD-BR-8-301 — Maryland General Assembly — Annotated Code of Maryland (mgaleg.maryland.gov) Business Regulation §8-301 — License required; exclusions (incl. the (c)(4) trade exemption) — Business Regulation §8-301(a)-(b) verbatim (read 2026-10-05) https://mgaleg.maryland.gov/mgawebsite/Laws/StatuteText?article=gbr&section=8-301&enactments=false Retrieved 2026-10-05 · last verified 2026-10-05 §8-301(a): a contractor licence is required to act as a contractor in the State; (b): a salesperson or contractor licence to sell a home improvement. §8-301(c)(4) exempts a licensed electrician / plumber / HVACR contractor (or other licensed occupation) acting within scope, or installing a central heating/air-conditioning system.
What counts as 'home improvement' — the statutory scope and its exclusions Business Regulation §8-101(g) verbatim (read 2026-10-05)	license	Business Regulation §8-101(g): 'home improvement' means the addition to or alteration, conversion, improvement, modernization, remodeling, repair or replacement of a building (or part) used or designed as a residence, a structure adjacent to it, or an improvement to land adjacent to it. It includes driveways, fences, garages, landscaping, decks, piers, porches, swimming pools, shore erosion control, certain appliance connections, awnings, fire alarms, storm windows and work on individual condominium units. It does NOT include new-home construction; completion-guarantee work on a new building; appliance connection that requires altering plumbing lines; material sales; apartment buildings with four or more single-family units; or the commonly owned areas of condominiums.	S-MD-BR-8-101 Source S-MD-BR-8-101 — Maryland General Assembly — Annotated Code of Maryland (mgaleg.maryland.gov) Business Regulation §8-101 — Definitions (contractor, home improvement, salesperson) — Business Regulation §8-101(g) verbatim (read 2026-10-05) https://mgaleg.maryland.gov/mgawebsite/Laws/StatuteText?article=gbr&section=8-101&enactments=false Retrieved 2026-10-05 · last verified 2026-10-05 'Home improvement' verbatim (incl. adjacent land, driveways/fences/garages/decks/porches/pools/piers, shore erosion control, awnings/fire alarms/storm windows, individual condo units) and its exclusions (new-home construction, completion guarantees, appliance connection requiring plumbing alteration, material sales, apartment buildings with 4+ single-family units, common-area condos).
Licensed electricians, plumbers and HVACR contractors are EXEMPT from the MHIC licence within their scope Business Regulation §8-301(c)(4) verbatim (read 2026-10-05)	exemption	Business Regulation §8-301(c)(4) verbatim: the MHIC licence does not apply to 'an architect, electrician, plumber, heating, ventilation, air-conditioning, or refrigeration contractor, or other person who: (i) is required by State or local law to meet standards of competency or experience before engaging in an occupation or profession; (ii) currently is licensed in that occupation or profession under State or local law; and (iii) is: 1. acting only within the scope of that occupation or profession; or 2. installing a central heating or air-conditioning system.'	S-MD-BR-8-301 Source S-MD-BR-8-301 — Maryland General Assembly — Annotated Code of Maryland (mgaleg.maryland.gov) Business Regulation §8-301 — License required; exclusions (incl. the (c)(4) trade exemption) — Business Regulation §8-301(c)(4) verbatim (read 2026-10-05) https://mgaleg.maryland.gov/mgawebsite/Laws/StatuteText?article=gbr&section=8-301&enactments=false Retrieved 2026-10-05 · last verified 2026-10-05 §8-301(a): a contractor licence is required to act as a contractor in the State; (b): a salesperson or contractor licence to sell a home improvement. §8-301(c)(4) exempts a licensed electrician / plumber / HVACR contractor (or other licensed occupation) acting within scope, or installing a central heating/air-conditioning system.
4+ unit apartment buildings and common-area condos are not 'home improvement' Business Regulation §8-101(g)(3)(v)-(vi) verbatim (read 2026-10-05)	exemption	Business Regulation §8-101(g)(3)(v)-(vi) exclude from 'home improvement' work done on apartment buildings that contain four or more single-family units and work done on the commonly owned areas of condominiums. Individual condominium units ARE home improvement (§8-101(g)(2)(v)).	S-MD-BR-8-101 Source S-MD-BR-8-101 — Maryland General Assembly — Annotated Code of Maryland (mgaleg.maryland.gov) Business Regulation §8-101 — Definitions (contractor, home improvement, salesperson) — Business Regulation §8-101(g)(3)(v)-(vi) verbatim (read 2026-10-05) https://mgaleg.maryland.gov/mgawebsite/Laws/StatuteText?article=gbr&section=8-101&enactments=false Retrieved 2026-10-05 · last verified 2026-10-05 'Home improvement' verbatim (incl. adjacent land, driveways/fences/garages/decks/porches/pools/piers, shore erosion control, awnings/fire alarms/storm windows, individual condo units) and its exclusions (new-home construction, completion guarantees, appliance connection requiring plumbing alteration, material sales, apartment buildings with 4+ single-family units, common-area condos).
All electrical work in Maryland must be performed by a licensed master, journeyperson or apprentice electrician Board notice + BOP §6-605 verbatim (read 2026-10-05)	license	Maryland State Board of Electricians, verbatim: 'All electrical work in Maryland must be performed by a licensed Master, Journeyperson, or Apprentice Electrician. Apprentices must be supervised at all times by a licensed Master or Journeyperson and may not perform work independently. Unlicensed electrical work is illegal. Violations may result in fines of up to $5,000, imprisonment, or both.' §6-605 restates the employment restriction and the job-site presence rule.	S-MD-ELEC-MAIN Source S-MD-ELEC-MAIN — Maryland State Board of Electricians — Division of Occupational and Professional Licensing Maryland State Board of Electricians — overview, insurance requirements, unlicensed-work penalty — Board notice + BOP §6-605 verbatim (read 2026-10-05) https://labor.maryland.gov/license/elec/ Retrieved 2026-10-05 · last verified 2026-10-05 All electrical work must be done by a licensed master, journeyperson or apprentice (apprentices supervised at all times); unlicensed work is illegal and may bring fines up to $5,000, imprisonment, or both. Insurance to hold a licence: GL ≥ $300,000 and property damage ≥ $100,000; insurer must notify the Board 10 days before cancellation.
Plumbing and gas services require a Maryland Board of Plumbing licence (statewide, with carve-outs) Board overview + BOP §12-101 verbatim (read 2026-10-05)	license	Maryland State Board of Plumbing, verbatim: the Board 'licenses and regulates individuals who provide or assist in providing plumbing and gas services in Maryland.' The statutory licence classes (Business Occupations and Professions §12-101) are master plumber (providing plumbing AND natural gas services, including a master plumber gas fitter), journey plumber, apprentice plumber, limited master/journey plumber, master/journeyman/apprentice natural gas fitter, and a propane gas fitter certificate. State licences are required throughout Maryland EXCEPT Baltimore County and the WSSC area.	S-MD-PL-MAIN Source S-MD-PL-MAIN — Maryland State Board of Plumbing — Division of Occupational and Professional Licensing Maryland Board of Plumbing — overview and the Baltimore County / WSSC carve-out — Board overview + BOP §12-101 verbatim (read 2026-10-05) https://labor.maryland.gov/license/pl/ Retrieved 2026-10-05 · last verified 2026-10-05 State plumbing/gas-fitter licences are required statewide EXCEPT Baltimore County and the WSSC area (Prince George's & Montgomery Counties), which issue their own licences and have their own plumbing code; the Board also issues natural-gas fitter licences to non-plumbers and a propane gas fitter certificate that applies statewide.
All individuals providing HVACR services in Maryland must hold an HVACR licence from the Board 'It's the Law' notice verbatim (read 2026-10-05)	license	Maryland Board of HVACR Contractors, 'It's the Law' notice, verbatim: 'All individuals providing heating, ventilation, air conditioning and refrigeration services in the State of Maryland must be licensed by the Maryland Board of HVACR Contractors.' A licence is required as an Apprentice, Journey, Journey Restricted, Limited Contractor, Master Restricted, or Master Contractor. Apprentices must be licensed, supervised and under the control of a licensed master or journey present on the jobsite and may not work alone or contract. Penalties: up to 6 months' imprisonment for a first violation, up to 2 years for a subsequent violation, plus an administrative penalty up to $5,000 per violation.	S-MD-HVACR-NOTICE Source S-MD-HVACR-NOTICE — Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration (HVACR) Contractors — Division of Occupational and Professional Licensing HVACR — 'It's the Law' licensing notice (all HVACR service providers must be licensed) — 'It's the Law' notice verbatim (read 2026-10-05) https://www.dllr.state.md.us/license/hvacr/hvacrnolic.shtml Retrieved 2026-10-05 · last verified 2026-10-05 All individuals providing HVACR services in Maryland must be licensed; apprentices must be licensed, supervised and under the control of a licensed master/journey who is present on the jobsite and may not work alone or contract. Penalties: first violation up to 6 months imprisonment; a subsequent violation up to 2 years; administrative penalty up to $5,000 per violation.

06 Rule: MD-MHIC-LICENSE

Business Regulation §8-301(a): 'a person must have a contractor license whenever the person acts as a contractor in the State'; (b): a salesperson or contractor licence to sell a home improvement. Applies to home improvement as defined by §8-101(g). Test MD-MHIC-TRADE-EXEMPTION first when a licensed trade professional acts within scope.

Outcome	Conclusion	Caveats
mhic-required	mhic_license_required	Only an MHIC licensed contractor may contract with a homeowner for home improvement. The MHIC licence does NOT cover new-home construction or 4+ unit apartment buildings (§8-101(g)(3)).
not-home-improvement	mhic_not_required	New-home construction needs the Home Builder Registration; trade work needs the relevant trade licence; local permits may still apply.

Rule confidence: confirmed. Missing inputs produce NOT_DETERMINED — never a forced answer. Sources: S-MD-BR-8-301 S-MD-BR-8-101

07 Rule: MD-PLUMBING-LICENSE

Maryland Board of Plumbing licences individuals who provide or assist in providing plumbing and gas services; classes are master/journey/apprentice plumber-gas fitter, limited master/journey plumber, master/journeyman/apprentice natural gas fitter, and a propane gas fitter certificate.

Outcome	Conclusion	Caveats
license-required	plumbing_license_required	—

Rule confidence: confirmed. Missing inputs produce NOT_DETERMINED — never a forced answer. Sources: S-MD-PL-MAIN S-MD-BOP-12-101

08 Rule: MD-ELECTRICAL-LICENSE

All electrical work in Maryland must be performed by a licensed master, journeyperson or apprentice electrician (apprentices supervised at all times). Unlicensed electrical work is illegal; fines up to $5,000, imprisonment, or both.

Outcome	Conclusion	Caveats
license-required	electrical_license_required	A licensed master or journeyperson must be present at the job site (§6-605(b)).

Rule confidence: confirmed. Missing inputs produce NOT_DETERMINED — never a forced answer. Sources: S-MD-ELEC-MAIN S-MD-BOP-6-101

09 Rule: MD-HVACR-LICENSE

All individuals providing heating, ventilation, air conditioning and refrigeration services in Maryland must be licensed by the Maryland Board of HVACR Contractors. Apprentices must be supervised on the jobsite and may not work alone or contract. Penalty up to $5,000 per violation.

Outcome	Conclusion	Caveats
license-required	hvacr_license_required	Installing a central heating/AC system is exempt from the MHIC licence under §8-301(c)(4).

Rule confidence: confirmed. Missing inputs produce NOT_DETERMINED — never a forced answer. Sources: S-MD-HVACR-NOTICE S-MD-BR-9A-101

10 Rule: MD-HOME-IMPROVEMENT-SCOPE

Business Regulation §8-101(g): whether a job is 'home improvement' (residential alteration/remodel/repair, adjacent structures/land, individual condo units) or is excluded (new-home construction, 4+ unit apartment buildings, common-area condominiums, material sales).

Outcome	Conclusion	Caveats
is-home-improvement	work_is_home_improvement	—
condo-unit	work_is_home_improvement	—
excluded-sites	work_not_home_improvement	—

Rule confidence: confirmed. Missing inputs produce NOT_DETERMINED — never a forced answer. Sources: S-MD-BR-8-101

11 Rule: MD-HI-EXCLUSIONS

Business Regulation §8-101(g)(3): 4+ unit apartment buildings and common-area condominiums are NOT home improvement (individual condo units ARE).

Outcome	Conclusion	Caveats
excluded	work_not_home_improvement	—

Rule confidence: confirmed. Missing inputs produce NOT_DETERMINED — never a forced answer. Sources: S-MD-BR-8-101

12 Rule: MD-MHIC-TRADE-EXEMPTION

Business Regulation §8-301(c)(4): a licensed electrician, plumber, HVACR contractor or architect acting only within the scope of that occupation/profession, or installing a central heating or air-conditioning system, is NOT required to hold the MHIC contractor licence.

Outcome	Conclusion	Caveats
exemption-applies	mhic_exemption_applies	The exemption is scoped: home improvement OUTSIDE the trade scope still needs the MHIC licence.
exemption-not-available	mhic_license_required	—

Rule confidence: confirmed. Missing inputs produce NOT_DETERMINED — never a forced answer. Sources: S-MD-BR-8-301

13 The §8-101(g) boundary

Job	Maryland answer	Source
Painting, patios, driveways, permanent sheds/playgrounds	home improvement — MHIC contractor licence required (rule MD-HOME-IMPROVEMENT-SCOPE)	S-MD-BR-8-101
Carpet, demolition, interior window treatments, wall-mounted TVs	NOT home improvement — no MHIC licence (rule MD-HOME-IMPROVEMENT-SCOPE)	S-MD-BR-8-301
Apartment building with 4+ single-family units / condo common areas	NOT home improvement (rule MD-HI-EXCLUSIONS)	S-MD-BR-8-101
A licensed trade acting within scope	exempt from MHIC (§8-301(c)(4)) — rule MD-MHIC-TRADE-EXEMPTION	S-MD-BR-8-301

Note: the Baltimore-County/WSSC plumbing carve-out and the §6-605(b) electrical job-site rule (licensed master or journeyperson present at each electrical job site) are stated in full on the Maryland jurisdiction page.

Evidence

S-MD-BOP-6-101statute

Maryland General Assembly — Annotated Code of Maryland (mgaleg.maryland.gov)

Business Occupations and Professions §6-101 — Electrician definitions (master/journeyperson/apprentice; local boards)

https://mgaleg.maryland.gov/mgawebsite/Laws/StatuteText?article=gbo&section=6-101&enactments=false