Does Mainstream Charge Extra Fees for Emergency Service Calls?
Mainstream does not charge extra fees for after-hours or weekend emergency service for members of the Mainstream Maintenance Plan — your call…
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 Is Considered an Electrical Emergency?
An electrical emergency is any situation that creates immediate risk of fire, shock, or loss of power to essential systems — including…
Read AnswerWhy Does My Sump Pump Constantly Run?
A sump pump that runs constantly usually has one of these issues — a stuck float switch, undersized pump for the water…
Read AnswerWhat Are Some Common Problems for Sump Pumps?
The most common sump pump problems are stuck float switches, failed check valves, clogged intake screens, frozen discharge lines (winter), motor burnout…
Read AnswerWhat Are the Signs That I Need to Replace My Sump Pump?
Replace your sump pump if it’s older than 8–10 years, runs constantly without lowering the water, makes loud or grinding noises, fails…
Read AnswerWhat Is a Water Service Line?
A water service line is the underground pipe that brings drinking water from the city main (or your well) into your home.…
Read AnswerWhat Is a Main Water Sewer Line?
A main water sewer line is the central underground pipe that carries all wastewater from your home to the city sewer main…
Read AnswerHow Much Does It Cost to Repair a Main Line?
Main sewer line repair costs typically range from $1,500 for a small spot repair to $25,000+ for a full replacement under a…
Read AnswerWhat MERV Rating Should I Choose for My Air Filter?
For most Spokane-area homes, MERV 8 to MERV 13 is the right air filter rating — high enough to capture dust, pollen,…
Read AnswerHow Do I Know If My Air Filter Needs to Be Replaced?
Your air filter needs replacing when you can no longer see through it when held up to light, when it’s been more…
Read AnswerNo FAQs match your search.
