Skip to main content
Text UsCall Us
Big Valley Heating & Sheet Metal Ltd logo
Tankless Water Heater

Tankless Water Heater Maintenance & Tune-Up in Fraser Valley

Is your tankless water heater struggling with inconsistent hot water? We provide expert tune-ups to restore efficiency and ensure reliable hot water.

Is Your Tankless Water Heater Failing to Deliver Consistent Hot Water?

Is your shower turning cold mid-wash, leaving you shivering? Are you hearing strange banging, gurgling, or a distinct "kettling" noise from your utility closet, or noticing a slow trickle where there used to be strong, endless hot water? These aren't just minor annoyances; they're clear signals your tankless unit needs professional attention before a small issue becomes a costly breakdown. Big Valley Heating & Sheet Metal Ltd. is ready to provide the expert tankless water heater maintenance and tune-up you need, ensuring reliable hot water throughout your Fraser Valley home.

Warning Signs Your Tankless Water Heater Needs Attention

Inconsistent Hot Water Temperature

Is your shower water cycling from hot to lukewarm, making daily routines frustrating and unpredictable? This often signals mineral scale buildup within the heat exchanger, impeding heat transfer and stressing your unit, which if ignored, can lead to permanent damage and system breakdown.

Reduced Hot Water Flow or Pressure

Are you waiting longer for hot water or seeing a weaker stream from your faucets or showerhead? Sediment and mineral deposits are likely restricting water flow inside your unit, forcing it to work harder for less output and risking internal component damage.

Strange Noises Coming From the Unit

Hearing banging, gurgling, popping, or a distinct "kettling" sound from your tankless heater? These noises are almost always caused by mineral scale buildup inside the heat exchanger, signaling internal stress, inefficient operation, and potential overheating.

Visible Leaks or Drips

Any sign of moisture around your tankless unit, even small drips or rust stains, needs immediate attention. Leaks can indicate failing plumbing connections, a faulty pressure relief valve, or, more seriously, internal corrosion or cracks due to prolonged scale.

Increased Energy Bills

Are your monthly utility bills climbing without a corresponding increase in hot water usage? An inefficient tankless unit, often due to scale buildup or restricted airflow, has to work harder and longer to heat water, wasting energy and accelerating wear and tear.

Common Causes of Tankless Water Heater Problems

Hard Water and Mineral Buildup (Scaling)

Many areas across the Fraser Valley have hard water, meaning it contains higher concentrations of minerals like calcium and magnesium. When this water is heated rapidly in your tankless system, these minerals precipitate out and stick to the inside of the heat exchanger, forming a hard, insulating layer called scale. This buildup severely restricts water flow and reduces heating efficiency over time. The primary solution is a professional descaling (or flushing) service, which involves circulating a mild acidic solution through the heat exchanger to dissolve these mineral deposits.

Neglected Air Filters and Combustion Venting

Just like any combustion appliance, your tankless water heater requires a steady supply of clean air for efficient operation and proper venting of exhaust gases. Over time, dust, lint, and other airborne particles can accumulate on air intake filters, restricting crucial airflow. Similarly, exhaust vents can become obstructed by debris or even insect nests, impairing the safe and effective expulsion of combustion byproducts. A key part of our maintenance tune-up is inspecting and thoroughly cleaning or replacing these air filters and ensuring all combustion and exhaust vents are clear and unobstructed.

Worn or Failing Internal Components

Even with proper maintenance, certain components within a tankless water heater are subject to normal wear and tear over time. Igniters can become fouled or weaken, temperature sensors can lose calibration, gaskets and seals can degrade, and internal pumps can become sluggish. These issues often develop gradually, leading to subtle performance declines before a more significant failure occurs. During a comprehensive maintenance visit, our technicians meticulously inspect these critical components, checking for proper function and integrity, which helps prevent minor wear issues from escalating into major breakdowns.

Improper Gas Pressure or Supply

For gas-fired tankless water heaters, correct gas pressure is paramount for both efficient and safe operation. Fluctuations in the home's gas supply, issues with the gas valve, or even improper initial installation can lead to the unit receiving too much or too little fuel. This can result in incomplete combustion, inefficient heating, or the unit struggling to ignite or maintain its flame. Our maintenance tune-up includes a precise check of the gas pressure and flow to the unit using specialized tools, verifying it is within manufacturer's specifications and making any necessary adjustments for optimal performance.

What to Expect During Your Tankless Water Heater Maintenance Visit

When you schedule a tankless water heater maintenance and tune-up with Big Valley Heating & Sheet Metal Ltd. across the Fraser Valley, you can expect a thorough and professional service designed to optimize your unit's performance and extend its lifespan. Our experienced technicians follow a meticulous process, ensuring every critical aspect of your system is inspected and addressed.

First, your technician will conduct an initial diagnostic assessment, reviewing your unit's history, checking for any error codes, and listening to your specific concerns. They'll then visually inspect the entire unit, including the venting, gas or water lines, and electrical connections, looking for any signs of wear, corrosion, or leaks that could compromise safety or efficiency.

The most critical step is the descaling or flushing of the heat exchanger. This involves isolating the unit, connecting a pump system, and circulating a specialized descaling solution through the internal coils. This process dissolves mineral buildup, restoring the unit's ability to efficiently transfer heat and preventing future blockages that cause so many common problems. Beyond descaling, your technician will clean the air intake filters and inspect the combustion chamber and burner assembly for any debris or blockages. They’ll also check and test essential safety features, igniters, flame sensors, and temperature sensors to ensure they are operating correctly and accurately. Finally, we'll verify the gas pressure (for gas units) and water flow rates, making any necessary adjustments to ensure your tankless water heater is running at its peak efficiency and delivering the reliable hot water you expect for your home throughout the Fraser Valley.

Tankless Water Heater Maintenance & Tune-Up Coverage Across Fraser Valley

Ensuring your tankless water heater receives regular, expert maintenance is key to its longevity and efficiency, no matter where you call home in the Fraser Valley. Our family-owned business has been providing honest advice and expert craftsmanship since 1986, and that commitment extends to every community we serve.

Eastern Fraser Valley: Abbotsford, BC, Aldergrove, BC, Langley, BC, Mission, BC

North Fraser Communities: Coquitlam, BC, Maple Ridge, BC, Pitt Meadows, BC, Port Coquitlam, BC

Central Lower Mainland: Burnaby, BC, New Westminster, BC, Surrey, BC

Related Tankless Water Heater Services

Regular maintenance is the best way to prevent unexpected breakdowns, but sometimes issues arise that require more immediate attention. If your tankless water heater has completely stopped producing hot water, is showing persistent error codes, or needs an urgent fix, it might be time for a professional Tankless Water Heater Repair. For older units that are frequently breaking down, or if you're looking to upgrade to a more efficient system, our team also specializes in expert Tankless Water Heater Installation & Replacement services, helping you choose the right model for your home and ensuring a seamless transition to consistent, on-demand hot water.

Restore Your Home's Hot Water Comfort Today

Don't let an inefficient or unreliable tankless water heater disrupt your daily comfort and hike up your energy bills. The warning signs are often subtle at first, but ignoring them can quickly lead to costly repairs and inconvenient breakdowns, leaving you without hot water when you need it most. Proactive maintenance is a small investment that yields significant returns in efficiency, reliability, and peace of mind for years to come.

If you’re experiencing any of the warning signs discussed, or if it’s simply been too long since your last tune-up, trust the experienced professionals at Big Valley Heating & Sheet Metal Ltd. We’re committed to delivering reliable home comfort solutions throughout the Fraser Valley, backed by nearly four decades of local experience and community trust. Contact us today to schedule your tankless water heater maintenance and ensure your home has the consistent hot water it deserves.

Family Owned Since 1986

Let’s find the right solution for your home.

Have a question, need a repair, or thinking about an upgrade? A real Big Valley person — not a phone tree — will help you figure out the best next step. No pressure, just honest advice.

Call or text: 604-467-6474
Mon–Fri: 8:00 AM – 4:30 PM · Emergency? Call anyway.

Request Your Free Estimate

Request a Free Estimate

Your information is handled as described in our Privacy Policy. You can opt out of analytics and advertising storage at any time via Your Privacy Choices.

Free estimates on installs & replacements. We reply during business hours — usually fast.