Registered contractors in Mercer Island, WA
98 active contractor registrations in Mercer Island, WA, in the L&I files of October 2, 2026.
| Contractor | License | Specialty | Expires |
|---|---|---|---|
| 206 BUILDERS LLC | 206BUBL745NS | General | Aug 10, 2028 |
| 24/7 LOCKSMITH 4 U LLC | 247LOL4778KJ | Locks, security and alarm equipment | Aug 22, 2027 |
| AC ELECTRIC LLC | ACELEEL918PM | General | Nov 19, 2026 |
| ALL WORLD BUILDERS LLC | ALLWOWB745JB | General | Apr 2, 2028 |
| ANDERSON CONSTRUCTION SVCS LLC | ANDERCS807NC | General | Sep 12, 2028 |
| ASHTON INVESTMENTS LLC | ASHTOIL822DM | General | Mar 15, 2028 |
| ASPEN HOMES NW | ASPENHN870MK | General | Jul 19, 2027 |
| ASPEN QUALITY HOMES LLC | ASPENQH875M4 | General | Oct 10, 2027 |
| BAKLINSKI HOME IMPROVEMENT | BAKLIHI801DJ | General | Mar 11, 2028 |
| BARCELO DEVELOPMENT LLC | BARCEDL756DJ | General | Mar 11, 2027 |
| BASE CREW LLC | BASECCL753DK | General | Mar 12, 2027 |
| BAYLEY CONSTRUCTION LP | BAYLECL836JJ | General | Apr 11, 2027 |
| BISHOP MASONRY LLC | BISHOML962KJ | Masonry | Jun 9, 2027 |
| BUILD MODERN HOMES CORPORATION | BUILDMH803MT | General | Apr 17, 2027 |
| BUILDING SPECIALTIES NW LLC | BUILDSN792DC | General | Mar 3, 2027 |
| CARROLL CONSTRUCTION INC | CARROCI055LO | General | Sep 17, 2027 |
| CC DESIGN HOMES LLC | CCDESDH830O6 | General | Oct 1, 2027 |
| CLEAN AIR SOLUTIONS | CLEANAS789M2 | General | Jul 22, 2028 |
| COASTLINE CUSTOM HOME LLC | COASTCH747BH | General | Jan 8, 2028 |
| COASTLINE HOME LLC | COASTHL793DE | General | Mar 5, 2027 |
| CORNERSTONE CONST & MAINT LLC | CORNECM858DQ | General | Mar 30, 2027 |
| CRIBMATES HOLDINGS LLC | CRIBMHL765OS | General | Dec 26, 2026 |
| DATTA HOMES LLC | DATTAHL839M1 | General | Sep 29, 2027 |
| ECO ELECTRIC PLBG HTG & AIR | ECOELEP765P5 | General | Oct 25, 2028 |
| ECO ELECTRIC PLMBNG HTNG & AIR | ECOELEP746BT | Residential | Feb 25, 2028 |
| ECO ELECTRIC PLMBNG HTNG & AIR | ECOELEPA6175 | Journey level | Oct 25, 2028 |
| ECO ELECTRIC, PLBG, HTG & AIR | ECOELEP76575 | General | Oct 25, 2028 |
| EIGHTBLOX LLC | EIGHTL*826QT | General | Dec 2, 2026 |
| FAMILY PAINTING INC | FAMILPI934C8 | Painting/wallcovering | Mar 21, 2027 |
| FED EXCAVATION INC | FEDEXI*940RU | General | Jan 5, 2027 |
| FINDACONTRACTOR DBA FNACTR INC | FINDADF764BW | General | Feb 11, 2028 |
| GALLAGHER CO LLC | GALLACL955RA | General | Dec 2, 2027 |
| GENERAL CONSULTING SERVS INC | GENERCS792J1 | General | Oct 18, 2027 |
| GLASS EXPERT LLC | GLASSEL813L4 | General | May 21, 2027 |
| GOTTESMAN CONSTRUCTION LLC | GOTTECL952QQ | General | Jun 30, 2028 |
| GREATER SPACES LLC | GREATSL765RZ | General | Dec 10, 2026 |
| GRUMPYCORP STUDIOS | GRUMPS*751NN | General | Aug 15, 2027 |
| HL CONTRACTING LLC | HLCONCL756K3 | General | May 23, 2027 |
| HOME CUSTOMIZATION LLC | HOMECCL800C7 | General | Mar 13, 2027 |
| HOME-LINK DEVELOPMENT LLC | HOMELDL741N4 | General | Aug 24, 2028 |
| ISLAND CREST BUILDERS LLC | ISLANCB801KQ | General | May 7, 2028 |
| ISLAND SECURITY SYSTEMS INC | ISLANSS122QC | Limited energy | Jun 27, 2027 |
| ISOLA BUILDERS INC | ISOLABI869Q1 | General | Nov 28, 2026 |
| J & J ENERGY SOLUTIONS LLC | JJENEES775QA | General | Apr 28, 2028 |
| J&H Maritime Consulting LLC | JHMARMC853KD | General | Jun 4, 2027 |
| JAYMARC CUSTOM HOMES LLC | JAYMACH850N8 | General | Aug 28, 2027 |
| JAYMARC DIAMOND LLC | JAYMADL777OR | General | Oct 19, 2027 |
| JAYMARC HOMES LLC | JAYMAHL873QF | General | Nov 22, 2027 |
| JAYMARC RUBY LLC | JAYMARL763O5 | General | Sep 25, 2028 |
| JAYMARC SAPPHIRE LLC | JAYMASL788D5 | General | Apr 29, 2028 |
| JOHNSON DESIGN HOMES | JOHNSDH766BE | General | Jan 16, 2028 |
| KN CONSTRUCTION LLC | KNCONCL810N3 | General | Oct 8, 2028 |
| LEGACY DEVELOPMENTS LLC | LEGACDL776PP | General | Feb 9, 2028 |
| LIBERTY HOME REMODELING WA | LIBERHR751CE | General | Feb 12, 2027 |
| LNL BUILDS LLC | LNLBUBL821PH | General | Oct 31, 2026 |
| LUMIN HOME LLC | LUMINHL747LN | General | Jul 1, 2028 |
| MARCH MACDONALD INC | MARCHMI055BT | General | Jan 3, 2028 |
| MASTERWORKS | MASTE**813NB | General | Aug 3, 2027 |
| MATTHEW KING CONST CO LLC | MATTHKC010C2 | General | Dec 29, 2026 |
| MEADOW LANE COMPANY LLC | MEADOLC765NZ | General | Aug 9, 2028 |
| MERCER BUILDERS LLC | MERCEBL942J7 | General | Apr 27, 2028 |
| MERCER ISLAND CONSTRUCTION | MERCEIC786DN | General | Apr 16, 2028 |
| MERCER ISLAND HANDYMAN LLC | MERCEIH802N6 | General | Aug 27, 2028 |
| MERCER ISLAND REMODELING | MERCEIR762J4 | General | Apr 16, 2028 |
| Mr Q Construction LLC | MRQCOQC872LE | General | Oct 7, 2027 |
| NAT INSTALLATION NTWRK ENT INC | NATININ915JN | General | Oct 3, 2027 |
| NAUTILUS PACIFIC LLC | NAUTIPL790L1 | General | Jul 12, 2027 |
| NORTHWEST COMPLETE CONTRACTING | NORTHCC892M2 | Painting/wallcovering | Jul 28, 2027 |
| NSC BUILDERS LLC | NSCBUBL813P2 | General | Nov 10, 2027 |
| NW EASTSIDE BUILDERS LLC | NWEASEB773QC | General | Nov 17, 2027 |
| NW SEATTLE BUILDERS LLC | NWSEASB781KL | General | Jun 7, 2028 |
| OPTIMA FENCE AND DECK | OPTIMFD769N2 | General | Aug 28, 2028 |
| PARS WA CONSTRUCTION INC | PARSWWC813D8 | General | Apr 2, 2027 |
| PEAK BUILDERS INC | PEAKBI*990PA | General | Nov 5, 2027 |
| PETER DAVIS BUILDERS INC | PETERDB044BJ | General | Jul 12, 2027 |
| PM ARCHITECTURE LLC | PMARCAL825OP | General | Sep 17, 2028 |
| PRESIDIO DEVELOPMENTS L.L.C | PRESIDL777DS | General | Mar 24, 2027 |
| PROCLAD CONSTRUCTION LLC | PROCLCL841N6 | General | Oct 23, 2026 |
| Q DESIGN STUDIO LLC | QDESIDS763LC | General | Jun 21, 2028 |
| R K K CONSTRUCTION INC | RKKCOI*231LF | General | Jul 2, 2027 |
| RIDINGS CUSTOM PAINTING INC | RIDINCP034C7 | General | Sep 22, 2027 |
| RIDINGS RESIDENTIAL | RIDINR*758LF | General | Jun 6, 2027 |
| ROOT CAUSE LLC | ROOTCCL902J3 | Landscaping | Oct 9, 2028 |
| Shepherd Stoneworks Inc | SHEPHSI857DP | General | May 22, 2027 |
| SOUNDCRAFT BUILDERS LLC | SOUNDBL752J5 | General | Apr 25, 2027 |
| SOUTH SEATTLE HOME SERVS LLC | SOUTHSH756RW | General | Dec 17, 2027 |
| SPACE AT WORK | SPACEW*785MO | General | Jul 29, 2028 |
| STEM & NEST LLC | STEMNNL772PW | Landscaping | Oct 16, 2027 |
| STOP BUGGING ME LLC | STOPBBM902TH | Structural pest control | Feb 26, 2028 |
| THE HOME REFINERY LLC | HOMERHR770L2 | General | Jun 22, 2027 |
| TOLT HOME SERVICES INC | TOLTHHS761J2 | General | Apr 26, 2028 |
| TOUCHDOWN CONSTRUCTION LLC | TOUCHCL811CE | General | Jan 25, 2027 |
| TREND NORTHWEST LLC | TRENDNL764QR | General | Nov 19, 2026 |
| TRIESTE HOLDINGS LLC | TRIESHL892BU | General | May 26, 2027 |
| UNIQUE DESIGN LLC | UNIQUDL873OP | General | Sep 17, 2027 |
| VOLTLINE LLC | VOLTLL*753JP | General | Jun 2, 2027 |
| WENZEL ELECTRIC LLC | WENZEEL938QF | General | Mar 10, 2028 |
| YOUR RIGHT HAND MAN INC | YOURRRH961B1 | General | May 19, 2027 |
Alphabetical order — this site ranks no one. Active company registrations in the L&I contractor files of October 2, 2026. Contractors registered as individuals are not on this site. How to read this.