Dedicated WSSC Backflow Specialists with over [Number] years of local plumbing expertise.
At Durance Plumbing, we believe that safe drinking water is the foundation of a healthy community. As a locally owned and operated business, we have spent decades serving the residents and business owners of Montgomery County, Prince George’s County, and Northwest DC.
Our lead technician holds Master Plumber licenses in multiple jurisdictions and is specifically certified by WSSC for Cross-Connection Control. We don't just test devices—we ensure your property is fully compliant with all local regulations, protecting your family and your neighbors.
Full Maryland Master Plumber & WSSC Certifications.
Daily service in Bethesda, Rockville, and Silver Spring.
We respect your time with arrival windows that we actually keep. No waiting around all day.
Honest pricing and clear explanations. We only recommend repairs that are truly necessary.
Supporting our neighbors with reliable service and maintaining the safety of our local water supply.
Let us handle your annual backflow testing and WSSC compliance filings.