Contractors/Mechanical
ACCO Engineered Systems
ACCO Engineered Systems is a privately held company headquartered in California, specializing in the
design, fabrication, installation, maintenance, and service of commercial and industrial HVAC, plumbing,
process piping, electrical, and building automation systems. ACCO is known for its comprehensive inhouse
engineering and fabrication capabilities, offering complete solutions for mechanical and control
systems across multiple states including Arizona, California, Nevada, Oregon, and Washington. AGCW member since 2024.
www.accoes.com
Phone: (206) 787-8500
Mailing Address
5300 Denver Ave. S
Seattle, WA 98108
Advanced American Construction, Inc.
Marine construction, diving, and industrial services. AGC member since 2005.
Bridges, Contractors/Heavy Civil, Contractors/Mechanical, Dam Construction and Equipment, Driven Piles, Marine Construction and Equipment, Rentals/Sales - Equipment, Sanitary Sewerage Utilities, Water Utilities, Waterway and Marine Construction
www.callaac.com
Phone: (503) 445-9000
Fax: (503) 546-3031
Street Address
8444 NW St. Helens Rd.
Portland, OR 97231
Mailing Address
P.O. Box 83599
Portland, OR 97283
Andgar Corporation
Residential and commercial mechanical (HVAC & Plumbing) including service; architectural metal roofing, siding and flashing; food processing equipment; and specialty contracting for biogas digesters. AGC member since 2000.
Awnings, Contractors/Mechanical, Contractors/Sheet Metal, Decorative Metal, Decorative Metal Railings, Decorative Metal Stairs, Flashing and Sheet Metal Restoration, Foodservice Equipment, Heating, Ventilating, and Air Conditioning (HVAC), HVAC Ducts and Casings, HVAC Piping and Pumps, Metal Fabrications, Metal Railings, Metal Roof Panels, Metal Specialties, Metal Stairs, Metals, Pipe and Tube Railings, Sheet Metal Flashing and Trim, Sheet Metal Roofing, Steel Siding, Structural Steel Framing
www.andgar.com
Phone: (360) 366-9900
Fax: (360) 366-5800
Street Address
6920 Salashan Pkwy., Ste. A102
Ferndale, WA 98248
Mailing Address
P.O. Box 2708
Ferndale, WA 98248
Blythe Mechanical Inc
Blythe Mechanical is a full service commercial and residential mechanical contractor, engineering, and
service/maintenance provider. Our services include: design-build and plan spec construction, plumbing, HVAC,
commercial refrigeration, steam and hot water boilers, retrofit and remodel construction, sheet metal, HVAC
and plumbing repair, preventative maintenance, and backflow testing. AGC member since 1993.
Contractors/Mechanical, Contractors/Sheet Metal, Engineering, Heating, Ventilating, and Air Conditioning (HVAC), HVAC - Sales/Service/Repair, Plumbing, Plumbing Systems, Refrigeration
Phone: (360) 389-5500
Mailing Address
3000 W Illinois St.
Bellingham, WA 98225
Harbor Pacific Contractors, Inc.
Water and wastewater treatment plants, municipal, industrial, and commercial construction. AGC member since 1990.
Contractors/Bridge, Contractors/Bridge & Tunneling, Contractors/Buildings, Contractors/Concrete, Contractors/Design-Build, Contractors/Heavy Civil, Contractors/Heavy Highway, Contractors/Highway, Contractors/Industrial, Contractors/Mechanical, Contractors/Utility
www.harborpacific.com
Phone: (425) 488-7131
Fax: (425) 489-3991
4002 - 148th Ave NE
Redmond, WA 98052
Holmes Mechanical Inc.
Industrial mechanical contractor. AGC member since 2016.
Contractors/Industrial, Contractors/Mechanical, Heating, Ventilating, and Air Conditioning (HVAC), Plumbing
www.holmesmechanical.com
Phone: (360) 698-1977
Fax: (360) 698-1843
Mailing Address
5210 Sinclair Way
Bremerton, WA 98312
Platte Heating & A/C, Inc.
Full-service heating and air conditioning company specializing in new construction and retro fit - including water heaters, water softeners, and gas fireplace inserts. AGC member since 2003.
www.platteheating.com
Phone: (509) 965-3538
Fax: (509) 965-3631
Mailing Address
P.O. Box 8270
Yakima, WA 98908
