# Washington contractors by specialty

> The specialties of Washington L&I contractor registrations, with the companies under each.

## Specialties

Specialty names as the L&I file gives them.

| Specialty | Registered contractors |
|---|---|
| [All areas](/type/all-areas.md) | 59 |
| [Appliance repair](/type/appliance-repair.md) | 38 |
| [Appliances/equipment](/type/appliances-equipment.md) | 110 |
| [Asbestos and lead](/type/asbestos-and-lead.md) | 34 |
| [Awnings, canopies, patio covers, exterior screens](/type/awnings-canopies-patio-covers-exterior-screens.md) | 22 |
| [Backflow specialty](/type/backflow-specialty.md) | 54 |
| [Boiler/steam fit/proc piping](/type/boiler-steam-fit-proc-piping.md) | 49 |
| [Cabinets, millwork and finish carpentry](/type/cabinets-millwork-and-finish-carpentry.md) | 623 |
| [Central vacuum systems](/type/central-vacuum-systems.md) | 11 |
| [Closets](/type/closets.md) | 19 |
| [Commercial/industrial/refrig](/type/commercial-industrial-refrig.md) | 36 |
| [Concrete](/type/concrete.md) | 633 |
| [Construction clean-up](/type/construction-clean-up.md) | 113 |
| [Demolition and salvage](/type/demolition-and-salvage.md) | 36 |
| [Domestic pump](/type/domestic-pump.md) | 56 |
| [Doors & gates specialty](/type/doors-gates-specialty.md) | 23 |
| [Doors, gates and activating devices](/type/doors-gates-and-activating-devices.md) | 63 |
| [Drain cleaning / snaking](/type/drain-cleaning-snaking.md) | 20 |
| [Drilling, blasting and soil sampling](/type/drilling-blasting-and-soil-sampling.md) | 26 |
| [Dry wall](/type/dry-wall.md) | 307 |
| [Electrical contractor](/type/electrical-contractor.md) | 196 |
| [Elevator](/type/elevator.md) | 37 |
| [Equipment repair](/type/equipment-repair.md) | 7 |
| [Excavation, grading and land clearing](/type/excavation-grading-and-land-clearing.md) | 309 |
| [Fencing](/type/fencing.md) | 190 |
| [Fire protect system](/type/fire-protect-system.md) | 102 |
| [Fireproofing and coating](/type/fireproofing-and-coating.md) | 7 |
| [Floor covering and counter tops](/type/floor-covering-and-counter-tops.md) | 1,306 |
| [Framing and rough carpentry](/type/framing-and-rough-carpentry.md) | 234 |
| [General](/type/general.md) | 49,410 |
| [Glazing/glass](/type/glazing-glass.md) | 225 |
| [Gutters/downspouts](/type/gutters-downspouts.md) | 125 |
| [Handyman](/type/handyman.md) | 246 |
| [Heating/vent/air-conditioning and refrig (hvac/r)](/type/heating-vent-air-conditioning-and-refrig-hvac-r.md) | 695 |
| [House moving](/type/house-moving.md) | 3 |
| [Hvac/rfrg](/type/hvac-rfrg.md) | 428 |
| [Hvac/rfrg-restricted](/type/hvac-rfrg-restricted.md) | 17 |
| [Industrial equipment/machines](/type/industrial-equipment-machines.md) | 76 |
| [Inst equip/stat furn/lab t/lo](/type/inst-equip-stat-furn-lab-t-lo.md) | 60 |
| [Installation/alteration](/type/installation-alteration.md) | 13 |
| [Insulation and acoustical](/type/insulation-and-acoustical.md) | 139 |
| [Irrigation/sprinkling systems](/type/irrigation-sprinkling-systems.md) | 70 |
| [Journey level](/type/journey-level.md) | 1,339 |
| [Landscaping](/type/landscaping.md) | 1,071 |
| [Lathing and plastering](/type/lathing-and-plastering.md) | 34 |
| [Lighting maintenance](/type/lighting-maintenance.md) | 9 |
| [Limited energy](/type/limited-energy.md) | 482 |
| [Locks, security and alarm equipment](/type/locks-security-and-alarm-equipment.md) | 121 |
| [Maintenance](/type/maintenance.md) | 63 |
| [Manufactured/mobile home set-up](/type/manufactured-mobile-home-set-up.md) | 8 |
| [Masonry](/type/masonry.md) | 234 |
| [Metal fabrication](/type/metal-fabrication.md) | 114 |
| [Overhead/garage doors](/type/overhead-garage-doors.md) | 147 |
| [Painting/wallcovering](/type/painting-wallcovering.md) | 1,660 |
| [Paving/ striping/ seal coating](/type/paving-striping-seal-coating.md) | 178 |
| [Pressure washing](/type/pressure-washing.md) | 207 |
| [Pump & irrigation](/type/pump-irrigation.md) | 152 |
| [Repair](/type/repair.md) | 1 |
| [Residential](/type/residential.md) | 1,074 |
| [Residential maintenance](/type/residential-maintenance.md) | 30 |
| [Residential service](/type/residential-service.md) | 5 |
| [Roofing](/type/roofing.md) | 494 |
| [Rtd non-res maintenance](/type/rtd-non-res-maintenance.md) | 1 |
| [Sandblasting](/type/sandblasting.md) | 11 |
| [Sanitation system / side sewers](/type/sanitation-system-side-sewers.md) | 95 |
| [Scaffolding and safety railings](/type/scaffolding-and-safety-railings.md) | 16 |
| [Service or maintenance](/type/service-or-maintenance.md) | 9 |
| [Service station equipment and maintenance](/type/service-station-equipment-and-maintenance.md) | 5 |
| [Siding](/type/siding.md) | 302 |
| [Sign](/type/sign.md) | 71 |
| [Signs](/type/signs.md) | 138 |
| [Steel erectors](/type/steel-erectors.md) | 120 |
| [Structural pest control](/type/structural-pest-control.md) | 35 |
| [Suspended ceiling and acoustical tile](/type/suspended-ceiling-and-acoustical-tile.md) | 17 |
| [Swimming pools, spas and hot tubs](/type/swimming-pools-spas-and-hot-tubs.md) | 56 |
| [Tanks and tank removal](/type/tanks-and-tank-removal.md) | 36 |
| [Tile, ceramic, mosaic, natural and mfg stone](/type/tile-ceramic-mosaic-natural-and-mfg-stone.md) | 730 |
| [Tree removal service](/type/tree-removal-service.md) | 459 |
| [Unused](/type/unused.md) | 1 |
| [Utilities and telecommunications](/type/utilities-and-telecommunications.md) | 145 |
| [Water conditioning equipment](/type/water-conditioning-equipment.md) | 16 |
| [Welding and ornamental metal](/type/welding-and-ornamental-metal.md) | 213 |
| [Well drilling](/type/well-drilling.md) | 47 |
| [Window coverings](/type/window-coverings.md) | 154 |
| [Wood/pellet and gas stoves](/type/wood-pellet-and-gas-stoves.md) | 23 |

Alphabetical order.

**Do you run a contracting business with 20 or more people on site?**

AI labs pay businesses to record first-person video of everyday hands-on work — filmed by their own staff with a
smartphone on a wearable mount, with consent and under contract.

**See the program and apply →** 
 Referral link to micro1: this site may be paid a fee if your business is accepted. Not affiliated with
the Washington State Department of Labor & Industries.

---

Página: https://wa-contractor-license-records.pages.dev/type/
Fonte: https://data.wa.gov/d/m8qx-ubtq
Recolha: 2026-10-02