All states Washington
Washington license records
Licensed contractors in Mercer Island, WA 106 active licenses list Mercer Island as their address in Washington Department of Labor & Industries contractor data (construction, electrical, plumbing and elevator contractors), updated daily, file dated November 11, 2026.
Before you hire anyone on this list Confirm the license on the official site. Our copy is a snapshot; the state's record is live and shows complaints. Make sure the name on your contract matches the name on the license. Check the license type covers your job. A roofing license doesn't cover electrical work. How to check a contractor in Washington, step by step
Construction Contractor, General 88 206 Builders LLC #206BUBL745NS · expires August 10, 2028 Ajs Renovation and Const #AJSRERC966O1 · expires January 9, 2028 All World Builders LLC #ALLWOWB745JB · expires April 2, 2028 Anderson Construction Svcs LLC #ANDERCS807NC · expires September 12, 2028 Ashton Investments LLC #ASHTOIL822DM · expires March 15, 2028 Aspen Homes Nw #ASPENHN870MK · expires July 19, 2027 Aspen Quality Homes LLC #ASPENQH875M4 · expires October 10, 2027 Baklinski Home Improvement #BAKLIHI801DJ · expires March 11, 2028 Barcelo Development LLC #BARCEDL756DJ · expires March 11, 2027 Base Crew LLC #BASECCL753DK · expires March 12, 2027 Bayley Construction LP #BAYLECL836JJ · expires April 11, 2027 Build Modern Homes Corporation #BUILDMH803MT · expires April 17, 2027 Building Specialties Nw LLC #BUILDSN792DC · expires March 3, 2027 Carroll Construction INC #CARROCI055LO · expires September 17, 2027 Cc Design Homes LLC #CCDESDH830O6 · expires October 1, 2027 Clean Air Solutions #CLEANAS789M2 · expires July 22, 2028 Coastline Custom Home LLC #COASTCH747BH · expires January 8, 2028 Coastline Home LLC #COASTHL793DE · expires March 5, 2027 Cornerstone Const & Maint LLC #CORNECM858DQ · expires March 30, 2027 Cribmates Holdings LLC #CRIBMHL765OS · expires December 26, 2026 Datta Homes LLC #DATTAHL839M1 · expires September 29, 2027 Eco Electric Plbg Htg & Air #ECOELEP765P5 · expires October 25, 2028 Eightblox LLC #EIGHTL*826QT · expires December 2, 2026 Evolved Structures #EVOLVS*822J3 · expires April 23, 2028 Fed Excavation INC #FEDEXI*940RU · expires January 5, 2027 Findacontractor DBA Fnactr INC #FINDADF764BW · expires February 11, 2028 Fraser Design Build LLC #FRASEDB760DF · expires March 17, 2028 Gallagher Co LLC #GALLACL955RA · expires December 2, 2027 General Consulting Servs INC #GENERCS792J1 · expires October 18, 2027 Glass Expert LLC #GLASSEL813L4 · expires May 21, 2027 Gottesman Construction LLC #GOTTECL952QQ · expires June 30, 2028 Greater Spaces LLC #GREATSL765RZ · expires December 10, 2026 Green Home Sltns of Grtr Sea #GREENHS753N7 · expires September 28, 2027 Grumpycorp Studios #GRUMPS*751NN · expires August 15, 2027 Hl Contracting LLC #HLCONCL756K3 · expires May 23, 2027 Home-Link Development LLC #HOMELDL741N4 · expires August 24, 2028 Island Crest Builders LLC #ISLANCB801KQ · expires May 7, 2028 Isola Builders INC #ISOLABI869Q1 · expires November 28, 2026 J & J Energy Solutions LLC #JJENEES775QA · expires April 28, 2028 Jaymarc Custom Homes LLC #JAYMACH850N8 · expires August 28, 2027 Jaymarc Diamond LLC #JAYMADL777OR · expires October 19, 2027 Jaymarc Homes LLC #JAYMAHL873QF · expires November 22, 2027 Jaymarc Ruby LLC #JAYMARL763O5 · expires September 25, 2028 Jaymarc Sapphire LLC #JAYMASL788D5 · expires April 29, 2028 Johnson Design Homes #JOHNSDH766BE · expires January 16, 2028 Kalluna Interior Design INC #KALLUID743K8 · expires May 29, 2028 Kn Construction LLC #KNCONCL810N3 · expires October 8, 2028 Legacy Developments LLC #LEGACDL776PP · expires February 9, 2028 Liberty Home Remodeling Wa #LIBERHR751CE · expires February 12, 2027 Lnl Builds LLC #LNLBUBL821PH · expires November 3, 2028 Lucas Construction #LUCASC*764J6 · expires April 26, 2028 Lumin Home LLC #LUMINHL747LN · expires July 1, 2028 March Macdonald INC #MARCHMI055BT · expires January 3, 2028 Masterworks #MASTE**813NB · expires August 3, 2027 Matthew King Const Co LLC #MATTHKC010C2 · expires December 29, 2026 Meadow Lane Company LLC #MEADOLC765NZ · expires August 9, 2028 Mercer Builders LLC #MERCEBL942J7 · expires April 27, 2028 Mercer Island Construction #MERCEIC786DN · expires April 16, 2028 Mercer Island Handyman LLC #MERCEIH802N6 · expires August 27, 2028 Mercer Island Remodeling #MERCEIR762J4 · expires April 16, 2028 Mr Q Construction LLC #MRQCOQC872LE · expires October 7, 2027 Nat Installation Ntwrk Ent INC #NATININ915JN · expires October 3, 2027 Nautilus Pacific LLC #NAUTIPL790L1 · expires July 12, 2027 Northwest Deck #NORTHD*088CK · expires April 24, 2027 Nw Eastside Builders LLC #NWEASEB773QC · expires November 17, 2027 Nw Seattle Builders LLC #NWSEASB781KL · expires June 7, 2028 Optima Fence and Deck #OPTIMFD769N2 · expires August 28, 2028 Paint Nation Pros LLC #PAINTNP762O4 · expires October 26, 2028 Pars Wa Construction INC #PARSWWC813D8 · expires April 2, 2027 Peak Builders INC #PEAKBI*990PA · expires November 5, 2027 Peter Davis Builders INC #PETERDB044BJ · expires July 12, 2027 Pm Architecture LLC #PMARCAL825OP · expires September 17, 2028 Presidio Developments L.L.C #PRESIDL777DS · expires March 24, 2027 Proclad Construction LLC #PROCLCL841N6 · expires October 23, 2028 Q Design Studio LLC #QDESIDS763LC · expires June 21, 2028 R K K Construction INC #RKKCOI*231LF · expires July 2, 2027 Ridings Custom Painting INC #RIDINCP034C7 · expires September 22, 2027 Ridings Residential #RIDINR*758LF · expires June 6, 2027 Shepherd Stoneworks INC #SHEPHSI857DP · expires May 22, 2027 Smithco Custom Concrete LLC #SMITHCC806LE · expires October 21, 2028 South Seattle Home Servs LLC #SOUTHSH756RW · expires December 17, 2027 Space At Work #SPACEW*785MO · expires July 29, 2028 The Home Refinery LLC #HOMERHR770L2 · expires June 22, 2027 Tolt Home Services INC #TOLTHHS761J2 · expires April 26, 2028 Touchdown Construction LLC #TOUCHCL811CE · expires January 25, 2027 Trieste Holdings LLC #TRIESHL892BU · expires May 26, 2027 Unique Design LLC #UNIQUDL873OP · expires September 17, 2027 Your Right Hand Man INC #YOURRRH961B1 · expires May 19, 2027 Other license types 18 24/7 Locksmith 4 U LLC Construction Contractor, Locks, Security and Alarm Equipment · #247LOL4778KJ · expires August 22, 2027 Ac Electric LLC Electrical Contractor, General · #ACELEEL918PM · expires November 19, 2026 Bishop Masonry LLC Construction Contractor, Masonry · #BISHOML962KJ · expires June 9, 2027 Blg Landscapes Construction Contractor, Landscaping · #BLGLAL*909CK · expires February 12, 2028 Diversified Home Maint Construction Contractor, Painting/Wallcovering · #DIVERHM148ON · expires June 25, 2028 Eco Electric Plmbng Htng & Air Plumbing Contractor, Residential · #ECOELEP746BT · expires February 25, 2028 Eco Electric Plmbng Htng & Air Plumbing Contractor, Journey Level · #ECOELEPA6175 · expires October 25, 2028 Eco Electric, Plbg, Htg & Air Electrical Contractor, General · #ECOELEP76575 · expires October 25, 2028 Family Painting INC Construction Contractor, Painting/Wallcovering · #FAMILPI934C8 · expires March 21, 2027 Hubert Landscape Service Construction Contractor, Landscaping · #HUBERLS218DM · expires February 6, 2028 Island Security Systems INC Electrical Contractor, Limited Energy · #ISLANSS122QC · expires June 27, 2027 J&H Maritime Consulting LLC Electrical Contractor, General · #JHMARMC853KD · expires June 4, 2027 Mjtk Backflow Plumbing Contractor, Backflow Specialty · #MJTKBB*763JA · expires April 1, 2028 Northwest Complete Contracting Construction Contractor, Painting/Wallcovering · #NORTHCC892M2 · expires July 28, 2027 Root Cause LLC Construction Contractor, Landscaping · #ROOTCCL902J3 · expires October 9, 2028 Stem & Nest LLC Construction Contractor, Landscaping · #STEMNNL772PW · expires October 16, 2027 Stop Bugging Me LLC Construction Contractor, Structural Pest Control · #STOPBBM902TH · expires February 26, 2028 Wenzel Electric LLC Electrical Contractor, General · #WENZEEL938QF · expires March 10, 2028 Is your business on this list?
Open your license page and choose "Claim this page" to add your phone number and website. They show on your page
and next to your name here, so people checking you out can call.
Got a quote? Check it before you sign. VetMyProposal reads a contractor's proposal for free and flags what's missing, unclear or risky. It works for roofing, solar, HVAC and window quotes.
Review my proposal free VetMyProposal is a free tool from the team behind LicenseLookup.
Source: Washington Department of Labor & Industries contractor data (construction, electrical, plumbing and elevator contractors), updated daily. This covers contractor businesses, including licenses that lapsed in the last five years. Individual electricians' and plumbers' certificates aren't in it; check the official L&I search for those. Only licenses that are active in the file and list an address in
Mercer Island are shown; a contractor based elsewhere can still work here. LicenseLookup is an independent guide, not a
government agency, and this is not an endorsement of anyone listed. See our terms .