CheckLicensed Blog
Guides and research on verifying contractors before you hire.
Page 11 of 45
April 2026 · 6 min read
Minnesota requires plumbers to hold a state license from the Department of Labor and Industry (dli.mn.gov). Here's how to verify any MN plumber, understand license types, and protect yourself from unlicensed work.
Read more →April 2026 · 6 min read
Minnesota requires HVAC contractors to hold a license from the Department of Labor and Industry (dli.mn.gov). Here's how to verify any MN HVAC contractor, understand residential vs. commercial licensing, and check EPA 608 credentials.
Read more →April 2026 · 6 min read
South Carolina requires a contractor license for roofing projects over $5,000. The SC Contractors' Licensing Board (CLB) at llronline.com issues the required credentials. Here's how to verify any SC roofer before work begins.
Read more →April 2026 · 6 min read
South Carolina requires electricians to hold a license through the SC Contractors' Licensing Board (CLB) at llronline.com. Here's how to verify any SC electrician's credentials and check Master and Journeyman license status.
Read more →April 2026 · 6 min read
South Carolina requires plumbers to hold a license from the SC Contractors' Licensing Board (CLB) at llronline.com. Here's how to verify any SC plumber, understand Master and Journeyman credentials, and avoid unlicensed work risks.
Read more →April 2026 · 6 min read
South Carolina requires HVAC contractors to hold a license from the SC Contractors' Licensing Board (CLB) at llronline.com under the Mechanical (M) classification. Here's how to verify any SC HVAC contractor and check EPA 608 credentials.
Read more →April 2026 · 6 min read
Missouri has no statewide HVAC license, but EPA 608 certification and local requirements in Kansas City and St. Louis still apply. Here's what to verify before hiring any Missouri HVAC contractor.
Read more →April 2026 · 6 min read
Maryland requires roofers to hold an MHIC license through DLLR with a $20,000 bond and Guaranty Fund protection. Here's how to verify any Maryland roofing contractor before you hire.
Read more →April 2026 · 6 min read
Maryland licenses electricians through the State Board of Master Electricians and requires residential electrical contractors to also hold an MHIC license. Here's how to verify both credentials through DLLR.
Read more →April 2026 · 6 min read
Maryland requires plumbers to hold a Master or Journeyman Plumber license from the State Board of Plumbing, plus an MHIC license for residential work. Here's how to verify any Maryland plumber through DLLR.
Read more →April 2026 · 6 min read
Maryland requires HVAC contractors to hold both an HVAC-R Contractor license and an MHIC license for residential work, plus EPA 608 certification for refrigerant handling. Here's how to verify all three.
Read more →April 2026 · 6 min read
Wisconsin requires residential roofers to hold a Dwelling Contractor Qualifier certification through DSPS with a $5,000 bond. Here's how to verify any Wisconsin roofer at licensesearch.wi.gov.
Read more →April 2026 · 6 min read
Wisconsin requires electrical contractors to be registered with DSPS and individual electricians to hold Master or Journeyman licenses. Here's how to verify any Wisconsin electrician at licensesearch.wi.gov.
Read more →April 2026 · 6 min read
Indiana has no statewide roofing license. Here's what that means for homeowners, what insurance every Indiana roofer must carry, and how to protect yourself when no state database exists.
Read more →April 2026 · 6 min read
Indiana requires electricians to be licensed by the Indiana Professional Licensing Agency at pla.in.gov. Here's how to verify any Indiana electrician or electrical contractor before you hire.
Read more →April 2026 · 6 min read
Indiana requires plumbers to be licensed through the Indiana Plumbing Commission at pla.in.gov. Here's how to verify any Indiana plumber's credentials before work begins.
Read more →April 2026 · 6 min read
Indiana has no statewide HVAC contractor license. Here's what local permits, EPA 608 certification, and insurance requirements mean for homeowners hiring HVAC contractors in Indiana.
Read more →April 2026 · 6 min read
Missouri has no statewide roofing license. St. Louis and Kansas City have local registration and permit requirements. Here's how to verify a Missouri roofer and protect yourself when state oversight is absent.
Read more →April 2026 · 6 min read
Missouri has no statewide electrician license. St. Louis licenses electricians through the Building Division; Kansas City has its own program. Here's how to verify any Missouri electrician by city.
Read more →April 2026 · 7 min read
Missouri has no statewide plumber license. Kansas City and St. Louis each run their own licensing programs. Here's how to verify any Missouri plumber and what to check when no state database exists.
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