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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.
Contractors/Mechanical
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, Rentals/Sales - Equipment, Contractors/Heavy Civil, Contractors/Mechanical, Dam Construction and Equipment, Driven Piles, Marine Construction and 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
Dee Burch
President
Kyle Izatt
Vice President

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.
Decorative Metal, Foodservice Equipment, Decorative Metal Railings, Decorative Metal Stairs, Metal Fabrications, Metal Railings, Metal Specialties, Metal Stairs, Metals, Pipe and Tube Railings, Structural Steel Framing, Awnings, Contractors/Mechanical, Contractors/Sheet Metal, Flashing and Sheet Metal Restoration, Heating, Ventilating, and Air Conditioning (HVAC), HVAC Ducts and Casings, HVAC Piping and Pumps, Metal Roof Panels, Sheet Metal Flashing and Trim, Sheet Metal Roofing, Steel Siding
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
Andy Mellema
Gary Van Loo
Todd Kunzman
Member Highlight

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.
Engineering, HVAC - Sales/Service/Repair, Plumbing Systems, Refrigeration, Contractors/Mechanical, Contractors/Sheet Metal, Heating, Ventilating, and Air Conditioning (HVAC), Plumbing
Phone: (360) 389-5500
Mailing Address
3000 W Illinois St.
Bellingham, WA  98225
David Morse, III
Jim Hill

Comfort Systems USA NW

Mechanical and Plumbing Contractor. AGCW member since 2023.
Plumbing Systems, Contractors/Mechanical, Plumbing
www.comfortsystemsusanorthwest.com
Phone: (425) 883-9224
Mailing Address
17683 - 128th Pl. NE
Woodinville, WA  98072

Eagle Harbor Associates, LLC

Plumbing and mechanical contractor. AGC member since 2016.
Contractors/Mechanical, Plumbing
Phone: (360) 779-8201
Fax: (360) 779-8240
Mailing Address
1420 Marvin Rd. NE, Ste. C-147
Lacey, WA  98516

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
John Welch
Greg Ritke

Harris Pacific Northwest, LLC

Mechanical contractor. AGC member since 2000.
Contractors/Mechanical
www.harriscompany.com
Phone: (360) 734-3600
3436 Airport Dr.
Bellingham, WA  98226
Jon Ewing

Hawk Mechanical Contractors, Inc.

Mechanical contracting - commercial/public works/industrial. AGC member since 2009.
Contractors/Industrial, Contractors/Mechanical
www.hawkmechanical.com
Phone: (360) 794-8783
Fax: (360) 805-9321
Street Address
17220 W. Main St.
Monroe, WA  98272
Mailing Address
P.O. Box 547
Monroe, WA  98272

Holmberg Mechanical

Mechanical contractor, plumbing systems. AGC member since 1984.
Contractors/Mechanical
www.holmbergco.com
Phone: (425) 822-2233
Mailing Address
12001 SE 9th Place, Ste. 300
Bellevue, WA  98005
Jeff White
Wade Bailor

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

MacDonald Miller Facility Solutions

Full-service design-build mechanical contractor. AGC member since 2013.
Contractors/Buildings, Contractors/Design-Build, Contractors/Electrical, Contractors/Mechanical, Contractors/Tenant Improvement
www.macmiller.com
Phone: (206) 768-3886
Fax: (206) 768-3887
Street Address
7717 Detriot Ave. SW
Seattle, WA  98106
Mailing Address
P.O. Box 47983
Seattle, WA  98146

Pease & Sons, Inc.

Commercial building, industrial, and process piping. AGC member since 1970.
Contractors/Buildings, Contractors/Concrete, Contractors/Mechanical
www.peaseandsons.com
Phone: (253) 531-7700
Fax: (253) 537-8113
Street Address
10601 Waller Rd.
Tacoma, WA  98446
Mailing Address
P.O. Box 44100
Tacoma, WA  98448
Bryan Hillemann
Vice President/Safety & Health Engineer Director
Darron Pease
President
Susan Bangs
Contract Administrator
Jennifer Kuljam
Project Manager/Estimator
Scott Hatcher
Controller

Pease Piping, Inc.

Mechanical and water treatment. AGC member since 1999.
Contractors/Mechanical
Phone: (253) 539-0467
Fax: (253) 539-9521
Mailing Address
P.O. Box 44870
Tacoma, WA  98448
Kelsey Pease
President

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.
Contractors/Mechanical, Heating, Ventilating, and Air Conditioning (HVAC)
www.platteheating.com
Phone: (509) 965-3538
Fax: (509) 965-3631
Mailing Address
P.O. Box 8270
Yakima, WA  98908
Brian Platte

PSF Mechanical, Inc.

PSF is a full-service commercial mechanical design and construction firm established in Seattle in 1898. AGC member since 2011.
Contractors/Mechanical, Heating, Ventilating, and Air Conditioning (HVAC), Plumbing
www.psfmechanical.com
Phone: (206) 764-9663
Mailing Address
5005 Pacific HWY E, Unit #4
Fife, WA  98424

Tacoma Plumbing & Heating, Inc.

Mechanical contracting and site utilities. AGC member since 2011.
Contractors/Mechanical, Contractors/Utility
www.tacomaplumbing.com
Phone: (253) 531-3444
Fax: (253) 537-0382
1817 - 112th St. E, Ste. G
Tacoma, WA  98445

UMC

HVAC, plumbing, mechanical and industrial construction - including 24-Hour service, refrigeration, design/build, pipe fabrication, and complete energy services. AGC member since 1964.
Contractors/Mechanical, Heating, Ventilating, and Air Conditioning (HVAC), Plumbing
www.umci.com
Phone: (206) 364-9900
Mailing Address
19020 33rd Avenue W, Suite 400
Lynnwood, WA  98036