Mercury Switch Wall Mounted Thermostats

Thermostats containing mercury that are used in homes and other buildings cannot be placed in the garbage. A typical mercury thermostat contains 3 grams of mercury that can be released into the environment if the thermostat is broken or improperly disposed. They must be safely handled so the mercury can be recovered.

At this time, the program described below is available only to contractors, and not residents. Do it yourself remodelers must take their mercury switches to the County’s Household Hazardous Waste Drop-Off Station for proper handling.

The Thermostat Recycling Corporation TRC is a private corporation established by thermostat manufacturers Honeywell, General Electric, and White Rodgers. Under this voluntary, industry-sponsored program, heating, ventilation, and cooling contractors can drop off used mercury-switch thermostats—no matter what brand—at participating wholesalers. There is no charge to contractors. Wholesalers collect the thermostats in protective bins supplied by TRC. When the bins are full, wholesalers send them to the TRC’s recycling center, where the TRC removes the switches and forwards them to a mercury recycler.

There are roughly 1,000 wholesale stores across the United States participating in the program. See list of participating wholesalers. Local drop-off locations are listed below.

Snohomish County Drop-Off Locations

• Blue Flame, LLC (206-368-5644)
  7116-220th St. SW #1, Mountlake Terrace, WA 98043
• Day & Nite Plumbing & Heating, Inc.(425-775-6464)
  11614-13th Ave. W, Lynnwood, WA 98037
• Evergreen State Heat & AC (425-252-3114)
  2120 Pacific Ave., Everett, WA 98201
• Gasline Mechanical, Inc. (425-487-2359)
  9926 Elliott Road, Snohomish, WA 98296
• Gensco (425-513-6968)
  10411 Airport Road, #112, Everett, WA 98204
• Snohomish County Household Hazardous Waste Drop-Off Station
  (425-388-3411)
  3434 McDougall Ave., Everett, WA 98201
• Thermal Supply, Inc. (425-257-3191)
  3330A McDougall Ave., Everett, WA 98201
• United Refrigeration (425-252-0492)
  3323 Hill Ave., Everett, WA 98201
• Washington Energy Services (206-378-6614)
  3909-196th St. SW, Lynnwood, WA 98036

North King & Skagit County Drop-off Locations

• Gensco (425-821-3546)
  11403-120th Ave. NE, Kirkland, WA 98034
• Hadco Supply (425-825-8448)
  11005-117th Pl NE, Bldg. 5, Kirkland, WA 98033
• Johnstone Supply Company (425- 487-3939)
  11715 N Creek Pkwy, Bothell, WA 98011
• Keller Air (425-881-0668)
  18315 NE 76th, Redmond, WA 98052
• L & O Distributing, Inc. (206-633-2857)          
  1320 N 35th St., Seattle, WA 98103
• Mobile Electric (206-363-2400)
  14050 Lake City Way NE, Seattle, WA 98125
• Olson Energy Service (206-782-5522)         
  4415 Leary Way NW, Seattle, WA 98107
• Pacific Air Control (206-682-6393)
  11812 N Creek Pkwy North, Bothell, WA 98011
• Puget Sound Refrigeration (206-367-2500)
  3132 NE 133rd, Seattle, WA 98125
• RSD (425-739-0630)
  11251-120th Ave. NE, Ste. 100
  Kirkland, WA 98033
• Skagit County HHW Facility (360-424-9532)
  14194 Ovenell Road, Mount Vernon, WA 98273