Septic Inspections in Skagit County

Tiger Tank Pumping offers full-time technicians for septic inspections and troubleshooting, to identify potential problems or recommended upgrades on any septic system. If your system is doing something it should not, call us and we will schedule a look.

A standard O&M inspection is $275. A property-transfer inspection for a real-estate sale, which is more thorough and comes with the county paperwork, is $325.

Washington State requires this

Every home or business in Washington served by a septic system needs periodic inspections: every year for most system types, or every three years if the system is conventional gravity, per Washington Administrative Code 246-272A-0270. Counties set their own level of enforcement, and Skagit County writes the same schedule into county code (SCC 12.05.160), but the requirement itself is statewide.

That is not a formality. Inspections keep the system working properly and catch small problems while they are still small. As a certified O&M provider we do these every day, and we file the paperwork the county wants.

Before and after photos of a septic outlet filter, caked solid on the left and fully cleaned on the right.
An outlet filter before and after cleaning. This is what routine O&M visits catch.

Buying or selling a house

A septic inspection before closing is one of the cheapest pieces of due diligence on an unsewered property. The system is buried, so nothing about its condition is visible on a walkthrough, and a drainfield at the end of its life is a five-figure problem that looks like a normal lawn.

If you are selling, going in already knowing the system condition means the septic report is not something that gets discovered and renegotiated a week before closing.

What gets looked at

  • Tank condition, including lids, risers, baffles, and the outlet filter
  • Liquid levels, which show how the tank and outlet are behaving
  • Pumps, floats, and alarms on pressurized systems
  • The drainfield, and whether it is accepting water the way it should
  • Signs of past repairs, surface failure, or standing effluent
A technician lifting a heavily loaded outlet filter out of an open septic riser.
A loaded filter coming out for cleaning during an inspection.

Where we work

Based in Bow, WA, serving all of Skagit County including Mount Vernon, Burlington, Sedro-Woolley, Anacortes, La Conner and Concrete, plus Whatcom County and the surrounding counties.

Not sure whether you are in range? Call and ask. If we cannot get to you, we will point you to someone who can.

(360) 421-1063 Call or text

Related services

Septic problems rarely stay in one category. These are the ones that come up alongside septic inspections.

All septic services

Need a septic tank pumped or looked at?

Call or send a message and we will get you on the schedule. Monday to Friday, 8am to 5pm.