King County Offers Rebates to Support Septic and Side Sewer System Health

King County is encouraging homeowners to keep their wastewater systems functioning properly by offering financial incentives through its Septic System Maintenance and Side Sewer Repair Rebate Program. The initiative aims to protect public health, safeguard property values, and reduce environmental pollution by helping cover costs for key maintenance and repair work.

The program provides two main rebates:

• Septic System Maintenance Rebate – Eligible property owners throughout King County can receive up to $500 to support septic system inspection, pumping, or riser installation. This rebate can be applied directly with contractors, so homeowners don’t have to front the cost.
• Side Sewer Repair Rebate – Homeowners located in the Lakehaven and Midway Sewer Districts may qualify for up to $5,000 toward repairs that eliminate stormwater or groundwater inflow into side sewer lines. Eligible work includes disconnecting illicit connections (like roof drains or sump pumps) and repairing or lining sewer pipes.

These rebates support work that helps prevent wastewater system failures, which can result in costly repairs, property damage, and contamination of our water.

Funding is available on a first-come, first-served basis, and applicants can check their eligibility on the King County website.

For property owners looking to protect their investment and contribute to local water quality, these rebates are an awesome tool to help with cost!