Seattle and the Eastside


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Carbon Monoxide Checks | Indoor Air Quality

Carbon Monoxide – the "Silent Killer"

Carbon monoxide gas, also known as the "silent killer," is a tasteless and odorless gas that is poisonous to humans in larger quantities. Because of its clandestine nature, carbon monoxide requires sensors or equipment to detect.

Natural gas furnaces and other natural gas appliances can give off high levels of carbon monoxide if they are not functioning properly. The problem is, without special equipment or sensors, you would never know it!

Why Get Carbon Monoxide Tests?

Each time Evergreen performs a Precision Tune Up on a system, we test for carbon monoxide emissions. This assures that your furnace is free from high levels of carbon monoxide emission while we are on site.

To increase the safety of your home even further, we recommend you install at least one, if not several, carbon monoxide sensors around your home. If a CO problem develops, you'll be the first to know! These carbon monoxide sensors are relatively inexpensive and well worth it for the safety they provide. Ask your technician or comfort advisor about carbon monoxide testers, or give us a call, to find out more information.

We are the Puget Sound's choice for service and repair on home heating, air conditioning, and HVAC systems.

100% guarantee on repairs

We have the best service technicians in the business. That's why we back all of our repairs with a 100% guarantee.

If you are having problems with your gas furnace, air conditioning, heat pump, ductless heat pump, or hot water heater, we'll have a professional service tech out to your home within hours.

Don't wait for service!

Call us now. 24 x7

(206) 565-1455

Evergreen Home Heating and Cooling Service Van

why evergreen?

•  Our unique flat-pricing system makes budgeting easy.

•  Forty years of industry knowledge and experience

•  We’re dedicated to residential service 24/7

•  All our installers are seasoned, certified technicians.

Get a Free Estimate: Speak with our home energy specialists.


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(206) 565-1455

727 S. Kenyon St.
Seattle, WA 98108


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