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MS
Electrical contractorRiverside, CA

M S B Construction

Licensed since 1998 · Sole Owner · No building permits on record yet

CSLB #746882 · ActiveWorkers' comp insuredBonded $25,000Verified website
License classes
A General EngineeringB General BuildingC-8 ConcreteC-10 ElectricalC-13 FencingC-17 GlazingC-20 HVACC-21 Building Moving & DemolitionC-27 LandscapingC-36 PlumbingC-53 Swimming PoolC-54 Ceramic & Mosaic TileD-28

License, bond & insurance

California Contractors State License Board
  • CSLB license#746882 · Active
  • Business typeSole Owner
  • Issued · expiresMar 11, 1998 · Mar 31, 2028
  • OfficeRiverside, CA 92509
  • CSLB record updatedSep 28, 2026
  • Contractor bond$25,000 · since Sep 21, 2026
  • Bond companyNationwide Mutual Insurance Company
  • Workers' compensationWorkers' Compensation Insurance · until Jul 11, 2027
  • InsurerContinental Casualty Company

License classes

A General EngineeringB General BuildingC-8 ConcreteC-10 ElectricalC-13 FencingC-17 GlazingC-20 HVACC-21 Building Moving & DemolitionC-27 LandscapingC-36 PlumbingC-53 Swimming PoolC-54 Ceramic & Mosaic TileD-28
Always confirm a license on cslb.ca.gov before signingCheck another license

About the company

drbutchko.com
  • Founded1978
  • Websitedrbutchko.com
From the company's own website, checked Oct 8, 2026. Claims are the company's; we show where each came from.
Facts with links to the page they came from

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Questions & answers

Is M S B Construction licensed?
CSLB license #746882 is active, issued Mar 11, 1998 and valid through Mar 31, 2028, with classes A, B, C-8, C-10, C-13, C-17, C-20, C-21, C-27, C-36, C-53, C-54, D-28.
Is M S B Construction insured and bonded?
CSLB lists workers' compensation insurance with Continental Casualty Company until Jul 11, 2027 and a $25,000 contractor bond with Nationwide Mutual Insurance Company.

Sources

  1. Contractors State License Board — license, bond and workers' comp records (Sep 28, 2026).
  2. Company website — drbutchko.com (checked Oct 8, 2026).
Answers use only the facts on this pageIs this your business? Update listing