If your hot water suddenly runs cold or your system is flashing an error code, you need fast, professional tankless water heater repair in Huntley, IL. At Hansen Heating, Plumbing, and Air Conditioning, we're your local experts for diagnosing and fixing problems with high-efficiency, on-demand water heaters—including leading brands like Navien, Rinnai, and Noritz.
Our licensed plumbing team has the tools and training to troubleshoot tankless systems, replace faulty components, and perform routine maintenance that keeps your unit running clean and efficiently. Whether you're dealing with flow rate issues, scale buildup, or ignition problems, we'll restore your hot water quickly—and back our work with transparent pricing and satisfaction guarantees.
Don't wait on a cold shower. Call Hansen today for tankless water heater repair and maintenance in Huntley, IL.
With over 70 years of experience in home comfort solutions, we are committed to delivering top-tier residential services.
We install equipment from Armstrong Air, Mitsubishi, Weil-McLain, and Aprilaire, as well as Navien tankless water heaters and Bradford White tank water heaters.
We're available around the clock for urgent HVAC & plumbing needs with responsive and customer-focused service you can trust.
We offer hassle-free options for HVAC & plumbing installations as well as maintenance plans for long-term system reliability.
Unlike traditional tanks that store hot water, tankless water heaters heat water on demand. When you turn on the tap, cold water passes through a heat exchanger, instantly warming the water before it reaches your faucet. These systems are compact, efficient, and capable of providing endless hot water—as long as they're properly maintained and in good working condition.
But like any appliance, tankless systems can develop issues over time—especially in homes with hard water or high demand.
Tankless units are known for reliability, but they're not immune to wear and tear. If you notice inconsistent water temperature or error messages, don't ignore the warning signs—these issues can lead to full system failure or reduced efficiency.
Our team uses advanced diagnostic tools and brand-specific training to isolate the issue and recommend the most cost-effective fix.
As a trusted installer of Navien tankless systems, Hansen also provides full-service Navien repair in Huntley, IL. These high-efficiency condensing units feature sophisticated components that require experienced service to diagnose and repair.
We carry common Navien parts on our trucks and have access to manufacturer support when needed—so we can resolve your issue fast.
Not sure if your system needs repair? Small performance issues can indicate bigger problems forming inside your unit. If you notice any of the following symptoms, it's time to call Hansen:
We'll perform a full system evaluation and get to the root of the problem—without upselling or unnecessary replacements.
Investing in a new HVAC system, water heater, or major plumbing upgrade doesn’t have to be a financial burden. We offer flexible financing options to help make your home improvements more affordable. Whether you need a new furnace, AC, or water heater, we work with you to find a solution that fits your budget.
Ask us about our financing options and find out how you can upgrade your home comfort with affordable monthly payments!
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Regular maintenance is essential to keeping your heating, cooling, and plumbing systems running efficiently and preventing unexpected breakdowns. Our customized maintenance plans are designed to extend the lifespan of your equipment, improve energy efficiency, and help you avoid costly repairs. With priority scheduling and exclusive service benefits, staying comfortable has never been easier.
Same Day Priority Service
Schedule Reminders for Annual Service
Annual Water Heater Maintenance*
Plumbing Inspection
Annual Furnace Maintenance
Annual A/C Maintenance
25% Discount on Service Repair Parts
1 Year Warranty on Installed Parts
Contact us today to learn more about our maintenance plans and how they can protect your home’s HVAC and plumbing systems!
*Not including tankless water heater flush
Sign Up Today More Info on Maintenance PlansThe key to long-lasting, reliable hot water is routine tankless water heater maintenance. Annual service helps prevent issues before they happen and ensures your system continues to run at peak efficiency.
In Huntley, hard water is a common concern. Without regular flushing, scale can build up quickly, reducing flow and forcing your system to work harder.
Skipping your tankless system's annual tune-up might not cause immediate failure—but over time, neglect can reduce system life, cause performance issues, and void your manufacturer warranty.
We make it easy to stay on track with scheduled maintenance plans, customized for your water usage and heater type.
In colder months, tankless systems—especially exterior or garage-mounted units—are vulnerable to freezing or improper combustion if not protected.
Don't let a cold snap damage your investment. We'll ensure your tankless water heater is ready to handle Huntley's seasonal shifts.
Want stress-free system care? Hansen offers affordable maintenance plans that include your tankless water heater, HVAC systems, and plumbing components. One annual visit keeps everything in peak shape and helps avoid costly repairs.
Ask about bundling your tankless tune-up with furnace, AC, or water treatment maintenance for full-system protection.
While Navien is our go-to brand for new installations, Hansen also repairs and maintains a wide range of tankless water heaters, including:
If your current unit isn't performing the way it should, we can diagnose the issue and offer honest advice—whether it's worth fixing or time to upgrade.
Find out why homeowners in Huntley, IL and the surrounding areas trust Hansen Heating, Plumbing, and Air Conditioning for reliable HVAC, plumbing, and air conditioning services. Our customers appreciate our dedication to comfort, efficiency, and exceptional service—every time.
Located right here in Huntley, IL, Hansen provides fast, responsive tankless repair and maintenance service across McHenry County and the northwest suburbs, including:
Our trucks are fully stocked and ready for same-day or next-day repairs in most cases.
We've been trusted in the Huntley community since 1946, and we take pride in delivering exceptional service with every visit. Whether your tankless unit is brand-new or 10 years old, we treat it—and your home—with the care it deserves.
When you need reliable hot water, you need Hansen.
When your hot water is unreliable—or completely gone—you need fast, professional help you can trust. At Hansen Heating, Plumbing, and Air Conditioning, we specialize in expert tankless water heater repair and maintenance in Huntley, IL, restoring comfort and performance to homes throughout the region.
Whether your system is flashing an error code, running inconsistently, or simply overdue for its annual service, our licensed technicians are ready to help. We diagnose and repair tankless systems from Navien, Rinnai, Noritz, and other major brands—and we do it with care, clarity, and no unnecessary upsells.
With over 50 years of experience and a deep understanding of Huntley's plumbing needs, Hansen delivers high-quality results backed by the local service our community has trusted since 1946.
Don't wait for a small issue to turn into a cold shower or a costly replacement. With just one visit, we'll restore your system and help protect it for the long run.
Let's get started. Contact Hansen Heating, Plumbing, and Air Conditioning today to schedule your tankless water heater repair or maintenance service in Huntley, IL—and enjoy the comfort of hot water you can count on.
Tankless water heaters rely on flow sensors and ignition systems to heat water as it passes through. If your system has lost power, developed scale buildup, or triggered an error code, it may shut down. Our team will diagnose the root cause and restore your hot water quickly.
These codes typically indicate ignition failure, exhaust problems, or temperature fluctuations. Navien tankless water heaters use advanced diagnostics, and our licensed technicians are trained to interpret and correct these issues on the spot.
Most manufacturers recommend flushing the unit once per year, especially in areas with hard water like Huntley. This removes mineral deposits from the heat exchanger and ensures efficient, long-lasting performance.
Look out for:
Yes. We service all major brands including Navien, Rinnai, Noritz, Bosch, Takagi, Rheem, and more. We arrive with common parts and diagnostic tools to minimize downtime and reduce repeat visits.
It's not recommended. Error codes often indicate ignition, venting, or overheating risks, which can damage internal components or lead to unsafe conditions. Turn the unit off and call Hansen for a prompt inspection.
Our service includes:
Yes. Annual maintenance helps catch problems before they cause breakdowns. Even if everything appears normal, scale buildup or sensor degradation can affect efficiency, shorten system life, and void your warranty.
With annual service, most tankless systems can last 15–20 years. Neglecting maintenance can reduce lifespan significantly and lead to premature replacement.
While it's possible for DIY-savvy homeowners to flush their systems, professional maintenance is strongly recommended. We ensure proper pressure, use the right solutions, and inspect sensitive components like burners and exhaust systems.
We've been serving Huntley since 1946, with over 50 years of plumbing experience. Our technicians are licensed, factory-trained, and committed to getting your hot water system running safely and efficiently. No guesswork. No pressure. Just expert help when you need it most.
Save on HVAC, plumbing, and air conditioning services with our limited-time specials and coupons. Check back regularly for new offers to help you keep your home comfortable without breaking the bank!
Take $250 off a new system install when you purchase a new air conditioner and furnace unit.
*Valid with a purchase of both a furnace and air conditioning unit.
Enjoy $100 off the installation of one indoor air quality product including Reme Halo UV Lights, Aprilaire Filters, and Humidifiers.
Get our maintenance plan for a year for free when you schedule a furnace AND air conditioning unit installation
Enjoy $200 off the installation of a high-efficiency Navien tankless water heater system in your home.
As a proud Huntley Chamber of Commerce member, we are committed to serving our local community. Our residential HVAC and plumbing services extend to:
East Dundee
Huntley
Inverness
Sleepy Hollow
Woodstock
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