Seattle Public Utilities Mami Hara, General Manager/CEO

Large Water Service – 4-Inches and Larger

Water service installation fees

Meter sizeConnection chargeInstallation feeInstallation and connection total
 Residential StreetArterial StreetResidential StreetArterial Street
Domestic services:
4 inch$18,071 +Site specificSite specific =TBDTBD
6 inch$35,079 +Site specificSite specific =TBDTBD

Requirements and costs for 4-inch or larger water service installation can vary significantly from site to site. Your costs will be determined by SPU field staff who will visit the site and provide job specific costs. This ensures your site-specific costs are more equitable, fair, and consistent. You can begin the process by submitting a water service application and agreement form (pdf) to

If you require any water service work for which there are no standard charges developed, specific charges will be developed based on Director’s Rule FIN 210.2 (pdf).


SPU will provide you an invoice with site specific costs and additional fees. The invoice will be good for 365 days from the date it was issued to you.

A new request for costs will be needed if:

  • Your invoice is not paid within the 365-day period
  • You change the scope of the project after we provide project costs