HVAC contractors in Washington
864 active hvac contractors are registered with Washington L&I. 1,597 registrations are on record in all, including expired and other statuses.
189 of the active hvac contractors registered in Washington are based in other states.
All 1,597 registrations on record
Businesses by registered name and license number. Show only the 864 active registrations.
- MARTIN MECHANICALACTIVE
Spokane Valley, WA · License MARTIM*754MW · Registered 1 year
Spokane, WA · License MASTEHC780NK · Registered 4 years
- MASTER MECHANICAL LLCACTIVE
Olympia, WA · License MASTEML83373 · Registered 8 years
Edmonds, WA · License MATUSHS012KK · Registered 27 years
- MAX MECHANICAL LLCACTIVE
Portland, OR · License MAXMEML754NA · Registered 1 year
- MAYS GAS PIPING LLCACTIVE
Enumclaw, WA · License MAYSGGP742O5 · Registered less than 1 year
Everett, WA · License MCGENGC820BD · Registered 8 years
- MCCOWN CRAFTED INCACTIVE
Union Gap, WA · License MCCOWCI961RA · Registered 21 years
- MCDOWELL & SON INCACTIVE
Hood River, OR · License MCDOWSI741JC · Registered less than 1 year
Snohomish, WA · License MCFARHA930JR · Registered 19 years
- MCNEIL INDUSTRIAL INCACTIVE
Gretna, NE · License MCNEIII785QS · Registered 3 years
Tacoma, WA · License MECHACH786JF · Registered 4 years
Spokane Valley, WA · License MECHARS746LB · Registered less than 1 year
- MECHANICAL PROS LLC THEACTIVE
Pasco, WA · License MECHAPL756LQ · Registered 1 year
Darrington, WA · License MECHATS794DU · Registered 5 years
- MECHPRO LLCACTIVE
Lakewood, WA · License MECHPL*769RL · Registered 1 year
- MELINK CORPACTIVE
Milford, OH · License MELINC*881C7 · Registered 14 years
- MEN OF STEEL INCACTIVE
Lexington, KY · License MENSTSI771L2 · Registered 3 years
Milwaukee, WI · License MEPMEMS751D2 · Registered 1 year
Kent, WA · License MERIDHC773KJ · Registered 3 years
- METHOD ENERGY LLCACTIVE
Seattle, WA · License METHOEL771ME · Registered 3 years
Marysville, WA · License METHOML741LQ · Registered less than 1 year
- METRO AIR INCACTIVE
Kirkland, WA · License METROAI995RC · Registered 24 years
- MG HEATING & COOLINGACTIVE
Manson, WA · License MGHEAHC761CG · Registered 2 years
Oregon City, OR · License MICHLST744MZ · Registered less than 1 year
Boring, OR · License MICHAMI775DC · Registered 3 years
- MIDNIGHT MECHANICAL INCACTIVE
Vashon, WA · License MIDNIMI753KR · Registered 1 year
Spokane, WA · License MIGHTCA775Q8 · Registered 2 years
- MIKE'S HEATING LLCACTIVE
Burley, WA · License MIKESHL786QB · Registered 3 years
- MIKES HEATING & AIR LLCACTIVE
Lakewood, WA · License MIKESHA766PN · Registered 1 year
Spokane, WA · License MIKESHS755RQ · Registered less than 1 year
- MIKES MECHANICALACTIVE
Des Moines, WA · License MIKESM*901JR · Registered 16 years
- MILLER MECHANICAL LLCACTIVE
Lynnwood, WA · License MILLEML761OR · Registered 2 years
Glens Falls, NY · License MILLEMS110NM · Registered 37 years
Milwaukie, OR · License MILWAHC749JG · Registered less than 1 year
- MINI SPLIT PROSACTIVE
Seattle, WA · License MINISSP744L4 · Registered less than 1 year
- MMSPARC LLCACTIVE
Spanaway, WA · License MMSPAL*820K5 · Registered 8 years
- MODIBUILT LLCACTIVE
Auburn, WA · License MODIBL*754QD · Registered less than 1 year
- MOFFITT MECHANICAL LLCACTIVE
Jacksonville Bea, FL · License MOFFIML901KF · Registered 16 years
Bothell, WA · License MOGOVHC742K8 · Registered less than 1 year
Bothell, WA · License MOGOVHC749PB · Registered less than 1 year
Snohomish, WA · License MONROHR159KG · Registered 41 years
- MORGAN MECHANICAL INCACTIVE
Redmond, WA · License MORGAMI883WT · Registered 14 years
Orting, WA · License MOUNTHC812BS · Registered 7 years
Renton, WA · License MOUNTVH970N2 · Registered 22 years
Beaverton, OR · License MPSHEHC858LP · Registered 11 years
- MTW DESIGN SERVICES LLCACTIVE
Fife, WA · License MTWDEDS8341M · Registered 9 years
Ridgefield, WA · License NAROLHC750O3 · Registered 1 year
Tacoma, WA · License NARROI*216J3 · Registered 47 years
Trenton, GA · License NATIOBS761RP · Registered 1 year