Keep Contaminants Out of Your Water Supply
Backflow happens when contaminated water flows in the wrong direction and enters your property’s clean water supply. This dangerous reversal can introduce chemicals, bacteria, and pollutants into your drinking water, posing serious health risks and violating code compliance.
Parallel Plumbing provides certified backflow testing and prevention services across Holland, MI, and West Michigan. Our licensed inspectors test your system, certify compliance, and install or repair prevention devices that keep your water safe.
Certified Experts in Backflow Testing & Prevention in Holland
Our team offers annual backflow testing, prevention device installation, and emergency repairs to safeguard your property. With licensed and certified expertise, we ensure your system meets state and municipal codes while protecting everyone who relies on your water.
Stay Compliant with Local Regulations
Most municipalities, including those in Michigan, require annual backflow testing for commercial properties. Without testing, you risk fines, code violations, and potential contamination events that could endanger staff, tenants, and customers. Professional testing ensures peace of mind and keeps your water system safe.
Benefits of Professional Backflow Testing & Prevention:
Get Professional Backflow Services Done Right the First Time
Backflow occurs when water flows backward through your plumbing, often caused by sudden pressure changes in the system. This reversal can pull contaminated water into clean lines. Common causes include pipe bursts, fire hydrant use, or cross-connections without prevention devices.
- Caused by sudden changes in water pressure
- Can introduce chemicals or bacteria into drinking water
- Prevented with proper devices and testing
Local codes require most commercial properties to test backflow prevention devices annually. Some high-risk facilities, such as medical centers or food-service properties, may require more frequent testing. Our team provides reminders and scheduling to keep you compliant.
- Annual testing is required by most municipalities
- More frequent testing for high-risk facilities
- Documentation provided for code compliance
If your backflow device fails inspection, it must be repaired or replaced immediately to restore compliance. Parallel Plumbing provides on-the-spot solutions, from repairing faulty valves to installing new prevention systems, ensuring your property remains safe and legal.
- Immediate repair or replacement required
- On-site service to restore compliance quickly
- Certification is provided after repairs are completed
Contact Holland’s Licensed Backflow Testers You Can Rely On
Parallel Plumbing delivers backflow testing and prevention in Holland, MI, backed by licensed expertise and proven reliability. Protect your water supply, stay compliant, and avoid costly risks—schedule your test today.


