Clean water starts with a clean cistern
Professional cistern cleaning for the San Juan Islands
Based in Friday Harbor • Serving Orcas, Shaw, Lopez, Stuart & Henry
Why San Juan Water Services?
Truly Local
Owned and operated right here in Friday Harbor, we understand the specific water challenges islanders face.
Focused Expertise
We specialize exclusively in cistern and water tank health, providing a level of detail others can't match.
Careful Methods
Our cleaning process prioritizes the integrity of your tank and the safety of your water supply above all else.
Clear Communication
We keep you informed from initial inspection through completion with honest, straightforward updates.
Cistern & Water Tank Services
We provide comprehensive solutions to ensure your water storage is safe, clean, and functioning perfectly year-round.
Full Cistern Cleaning
Removing sediment and buildup to restore water purity and prevent system clogging.
Inspection & Assessment
Thorough evaluation of tank integrity and water quality levels to identify potential issues.
Sanitization
Safe, island-friendly sanitizing treatments to eliminate harmful bacteria and pathogens.
Maintenance Guidance
Expert advice on filtration and system upkeep to extend the life of your cistern.
The Island Water Experts
In the San Juan Islands, most homes not on municipal water rely on private cisterns and water tanks for their daily supply. San Juan Water Services is locally owned and operated by William Plew, based right here in Friday Harbor. We bring a high level of care and respect to every project, understanding that your water is your most vital resource. Our island-focused service ensures that your system is handled with professional precision and deep local knowledge.
Before & After Cistern Cleaning
Most cisterns accumulate a layer of organic sediment and bacterial biofilm over time. Our professional cleaning process removes this buildup, restores interior clarity, and ensures your water remains safe for household use. See the difference a deep tank sanitization makes for your San Juan Islands property.
Service Area
Orcas Island
Shaw Island
Lopez Island
Stuart Island
Henry Island
Request a Quote
(360) 821-4677
SJWCLLC@gmail.com
Based in Friday Harbor, Washington