Tankless water heaters are efficient, space-saving, and provide hot water on demand—but they still require occasional service to keep running at peak performance. When your system isn’t working properly, Mallard Plumbing delivers expert diagnostics and repairs to get you back in hot water quickly and safely.

We service all major tankless brands throughout Bucks and Montgomery Counties and back our work with honesty, skill, and clear communication.

Signs Your Tankless Water Heater Needs Repair

Watch for these signs that your system may need service:

• No hot water or temperature fluctuations
• Water heater shuts off mid-use
• Error codes on the control panel
• Reduced water flow or pressure
• Unusual sounds like clicking or whining
• Scale buildup or mineral deposits causing blockage

Our Tankless Repair Services Include:

• System Diagnostics – Identify ignition, flow sensor, or control board issues
• Descaling & Maintenance – Remove mineral buildup and flush internal components
• Gas & Venting Checks – Ensure safe operation and optimal efficiency
• Temperature Control Repairs – Address fluctuations or system lockouts
• Manufacturer-Specific Repairs – Service for Rinnai, Navien, Noritz, and more

Why Choose Mallard Plumbing?

Tankless units require more specialized care than traditional tanks. Our licensed professionals are trained to work on all makes and models, and we take the time to get the job done right. We’re committed to integrity, clean workspaces, and straightforward service you can trust.

Fast, Reliable Service Across Bucks & Montgomery Counties

From Ivyland to Dublin, Jenkintown to Kulpsville—Mallard Plumbing provides expert tankless water heater repair wherever you need us. We’re ready to restore your comfort and make sure your system runs smoothly for years to come.

Book Your Tankless Repair Now

Don’t wait on inconsistent hot water or flashing error codes. Our team is ready to diagnose and fix your tankless water heater quickly and correctly.

📞 Call Mallard Plumbing today to schedule your repair.
🛠️ Ask about adding your unit to our maintenance plan to prevent future issues and extend its lifespan.