Welcome to our website, the ultimate destination for all your tankless water heater installation and repair needs!
At Emergency Plumbing, we specialize in providing top-notch services to ensure your tankless water heater operates efficiently and effectively.
Why Choose Tankless Water Heaters?
Tankless water heaters offer several advantages over traditional water heaters with tanks. Not only do they provide instant hot water on demand, but they also save energy and space. With a tankless water heater, you'll never have to worry about running out of hot water again, making them an excellent choice for households of all sizes. Expert Installation Services Installing a tankless water heater requires professional expertise, and that's where we come in. Our team of highly trained technicians has extensive experience in installing tankless water heaters of various brands and models. We'll carefully assess your property's specifications to determine the most suitable unit for your needs and undertake a seamless installation process.
Efficient Repairs and Troubleshooting Is your tankless water heater experiencing issues?
If you notice reduced hot water, inconsistent temperatures, unusual sounds, or error codes, our team can help. Our skilled technicians are trained to quickly identify what is happening and why, using proven diagnostic methods to pinpoint the source of the problem. We know that a dependable hot water supply is essential for everyday comfort, so we work efficiently to restore your system's performance as soon as possible. Whether you're dealing with a minor component issue or a more complex malfunction, we bring the right experience and equipment to address the problem correctly the first time. Our repair process focuses on getting your tankless water heater back to efficient operation, so you can enjoy dependable hot water without unnecessary delays.
Preventative Maintenance to Maximize Performance Regular maintenance is one of the best ways to protect your investment and extend the lifespan of your tankless water heater. Over time, mineral buildup and normal wear can impact performance, efficiency, and reliability. Our maintenance services are designed to keep your system operating at peak performance, helping you get the most out of every unit of energy. During maintenance visits, our technicians will inspect key system components, clean where needed, and perform any adjustments that help ensure stable operation. This proactive approach can also reduce the likelihood of unexpected breakdowns and help maintain consistent hot water delivery. Think of maintenance as a way to catch small concerns early—before they become bigger, more costly problems—so your tankless water heater can continue running smoothly for years to come. Transparent Pricing and Excellent Customer Service We believe that clear communication builds trust, which is why we provide transparent pricing for all our tankless water heater installation and repair services. Our goal is to ensure you receive exceptional value for your investment, with no guesswork. Before any work begins, we'll provide you with a detailed cost estimate, so you understand what to expect and there are no surprise charges. In addition, our dedicated customer service team is always available to answer questions and address concerns at any stage of the process. From explaining service options to walking you through next steps, we aim to make the experience straightforward, professional, and easy to feel confident about.
Experience the Benefits of a Tankless Water Heater Say goodbye to cold showers and high energy bills.
Let us handle all your tankless water heater installation and repair needs. With our expertise, top-quality service, and commitment to customer satisfaction, we guarantee an exceptional experience from start to finish. Contact us today to schedule an appointment or to learn more about our services.
Join the countless satisfied customers who have made the switch to tankless water heaters and enjoy the convenience and efficiency they provide!
TANKLESS VS. TANK: THE KEY TRADE-OFFS
Before deciding on a tankless system, it's worth understanding both sides:
| Tankless | Traditional Tank | |
|---|---|---|
| Hot water supply | Unlimited, on-demand | Limited to tank capacity |
| Upfront cost | Higher | Lower |
| Space required | Compact, wall-mounted | Larger floor footprint |
| Lifespan | 15-20+ years | 8-12 years |
| Energy efficiency | Higher (no standby heat loss) | Lower |
| Simultaneous fixture use | Can be limited by flow rate (GPM) | Limited by remaining tank volume |
The "unlimited hot water" benefit does come with a caveat: tankless units have a maximum flow rate (measured in gallons per minute), so if too many fixtures run simultaneously in a large household, the unit can still struggle to keep up — proper sizing during installation is what prevents this.
SIGNS YOUR TANKLESS UNIT NEEDS PROFESSIONAL ATTENTION
Beyond the general symptoms mentioned above, watch for these more specific tankless warning signs:
- Error codes displayed on the unit — modern tankless systems have built-in diagnostics; codes can indicate anything from ignition failure to a flow sensor issue, and a technician can read and address them accurately
- Delayed hot water response — a longer-than-normal wait for hot water can indicate a failing flow sensor or heat exchanger issue
- Short cycling — the unit turning on and off repeatedly during use often points to a flow rate below the minimum activation threshold, sometimes caused by a partially clogged inlet filter
- Visible scale buildup or reduced flow — a strong sign that the unit is due for descaling maintenance
WHY ANNUAL DESCALING MATTERS FOR TANKLESS SYSTEMS
Because tankless water heaters rely on a compact heat exchanger to instantly heat water as it flows through, mineral scale buildup (especially in areas with hard water, common throughout Illinois) can significantly reduce efficiency and shorten the unit's lifespan if left unaddressed. Manufacturers typically recommend annual descaling — flushing the system with a vinegar or specialized descaling solution to dissolve mineral deposits — as the single most important maintenance task for tankless systems. Skipping this maintenance is one of the most common reasons tankless units underperform or fail prematurely.
GAS VS. ELECTRIC TANKLESS: A QUICK NOTE
Like traditional tank water heaters, tankless units come in both gas and electric versions — gas models (such as the Navien NPE-240A2 or Bosch T9900 featured in our product catalog) typically offer higher flow rates suitable for larger households, while electric tankless units are often better suited to smaller point-of-use applications given their lower simultaneous flow capacity. Our technicians can help you determine which fits your household's hot water demand.
Frequently Asked Questions
Does my home need special modifications to switch from a tank to tankless system?
Often yes — tankless units may require different venting, a dedicated gas line upgrade (for gas models), or additional electrical capacity (for electric models); our technicians will assess your existing setup during a consultation to determine what's needed.
How often should a tankless water heater be serviced?
Annual descaling maintenance is generally recommended, more frequently in areas with especially hard water; our maintenance visits help catch developing issues before they cause a breakdown.
Can a tankless water heater run out of hot water like a tank system does?
Not in the traditional sense — it won't run out of stored hot water — but if simultaneous demand exceeds the unit's maximum flow rate (GPM), water temperature can drop; proper sizing during installation is what prevents this from happening in daily use.
Signs Your Tankless Water Heater Needs Maintenance or Repair
Tankless water heaters offer incredible energy efficiency and endless hot water, but hard water minerals in Northern Illinois can build up inside the compact heat exchanger. Call our certified tankless specialists at (224) 754-1984 if you observe:
Error Codes on Digital Display: Common error codes (e.g., ignition failure, flame loss, air supply restriction, or overheating errors on Navien/Rinnai panels).
Cold Water Sandwich Effect: Sudden bursts of cold water during a shower caused by delayed burner ignition or faulty flow sensor switches.
Fluctuating or Unstable Water Temperature: Mineral scale buildup inside the heat exchanger obstructing proper heat transfer to incoming water.
Low Hot Water Flow / Water Pressure: Clogged inline cold water inlet filters or scale accumulation restricting GPM (gallons per minute) output.
No Hot Water & Igniter Failure: Blocked intake/exhaust PVC pipes, failed gas control valves, or fouled flame rod sensors.
Loud Rumbling or Fan Vibration: Blower fan debris, combustion chamber soot, or thermal stress on the copper/stainless steel heat exchanger.
Tankless vs. Traditional Tank Water Heaters
Considering upgrading to a high-efficiency tankless water heater? Here is how on-demand systems compare to traditional storage tanks:
Feature / Benefit Tankless Water Heater Traditional Storage Tank Hot Water Supply Endless (heats water continuously on demand) Limited to tank capacity (40, 50, or 75 gallons) Energy Consumption Up to 24%–34% more efficient (no standby heat loss) Continuous gas/electric usage to keep tank warm Expected Lifespan 20+ Years with proper annual descaling 8–12 Years average Space Requirement Compact, wall-mounted (saves floor space) Takes up 10–15 sq. ft. of basement floor space Initial Investment Higher upfront installation cost Lower initial equipment & labor cost
Tankless Brands We Service & Annual Descaling Flush
We are factory-trained installers and service providers for premier tankless manufacturers, including Navien (NPE-A2 / S2 series), Rinnai, Bosch, Noritz, and Rheem.
Why Annual Tankless Descaling Is Crucial in Illinois:
Northern Illinois well and municipal water is rich in calcium and magnesium. Over time, these minerals form a hard scale layer on heat exchanger walls.
Our Descaling Service Includes: Connecting recirculating pumps to built-in isolation valves, flushing the system with food-grade descaling solution for 45–60 minutes, cleaning cold water inlet screens, inspecting exhaust venting, and resetting service counters.
Our Step-by-Step Tankless Conversion & Installation
Sizing & Gas Line Verification: We calculate your household’s peak GPM demand and verify that your gas line supply (1/2" or 3/4") and meter meet BTU requirements (up to 199,000 BTU).
Old Tank Removal & Wall Mounting: Safely draining and removing the heavy storage tank, installing sturdy wall-backing boards, and mounting the compact tankless unit.
Venting & Direct Air Intake Setup: Running dual-pipe PVC, CPVC, or polypropylene concentric venting out through sidewalls or roofs for safe intake and exhaust.
Water Line & Isolation Valve Piping: Installing dedicated hot/cold copper or PEX lines equipped with brass service isolation valves for easy future flushing.
Gas & Electrical Hookup & Commissioning: Connecting gas lines, setting up condensate drain traps, plugging into dedicated electrical circuits, and programming water temperature presets.
Frequently Asked Questions: Tankless Water Heater Services
Q: How much does tankless water heater repair or installation cost in Illinois?
A: Routine annual tankless descaling and filter maintenance costs around $200 to $350. Full tankless conversion and installation typically ranges from $2,800 to $4,500+, depending on gas line upgrades, electrical hookups, and direct venting pathways.
Q: How often should I flush my tankless water heater?
A: In Chicagoland suburbs with hard water, we recommend flushing and descaling your tankless unit once every 12 months to preserve manufacturer warranty coverage and prevent heat exchanger burnout.
Q: Can a tankless unit run multiple showers at the same time?
A: Yes! Properly sized high-efficiency units (such as a 199,000 BTU Navien NPE-240A2) deliver 8.0 to 11.2 GPM, comfortably supplying 2 to 3 showers simultaneously even during winter when incoming ground water is cold.
Q: What is a "recirculation pump" and why is it recommended for tankless systems?
A: Recirculation pumps (like Navien's built-in ComfortFlow system) continuously cycle hot water through your home's pipes, eliminating the delay for hot water at far-away faucets and preventing water waste.
With multiple locations throughout North Shore and Northwest suburbs of Chicago, Illinois, Emergency Plumbing offers promt and professional plumbing services.
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Our local plumbing company offers expert services, catering to all your needs. Whether you're in the heart of Buffalo Grove, the serene streets of Deerfield, or require an emergency plumber in Des Plaines or Elk Grove Village, we are here to help. Our plumbing contractors are well-versed in the unique plumbing systems of Glencoe, Glenview, Hawthorn Woods, and Highland Park.
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