What Are Some Signs I Might Have a Water Leak in My Home?
The most common signs of a hidden water leak are an unexplained jump in the water bill, the sound of running water…
Read AnswerFrequently Asked Questions
Straight answers to the questions our customers ask most — covering plumbing, heating, cooling, and electrical service across our service area.
What Types of Heating and Cooling Systems Does Mainstream Service and Install?
Mainstream services and installs every major type of residential heating and cooling system — gas and electric furnaces, central air conditioners, heat…
Read AnswerHow Often Should I Schedule HVAC Maintenance?
Schedule HVAC maintenance twice a year — once in the spring for your cooling system and once in the fall for your…
Read AnswerDoes Mainstream Handle Emergency HVAC Air Conditioning and Furnace Repairs?
Yes — Mainstream provides 24/7 emergency HVAC repair for air conditioning, furnaces, heat pumps, and ductless systems across the Spokane area. Our…
Read AnswerWhat Are the Signs That My HVAC System Needs Repair?
Common signs your HVAC system needs repair include weak or uneven airflow, warm air from AC vents, cold air from heating vents,…
Read AnswerWhat Should I Look for in a Heating and Cooling Company in Spokane Valley?
When choosing a heating and cooling company in Spokane Valley, look for proper licensing, NATE-certified technicians, transparent flat-rate pricing, strong local reviews,…
Read AnswerWater Heater Inspection Cost
A water heater inspection in the Spokane area typically costs $79 to $149 as a stand-alone service, and is often included free…
Read AnswerWhat Is a Furnace Tune Up?
A furnace tune-up is a yearly preventive service where a technician inspects, cleans, tests, and fine-tunes every major component on your furnace…
Read AnswerHow Does a Furnace Filter Work?
A furnace filter works by trapping airborne particles as your blower pulls return air through it on the way to the heat…
Read AnswerDrain Clog Prevention
The best way to prevent drain clogs is to keep grease, hair, food scraps, wipes, and harsh chemicals out of your drains,…
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