We service Barrington, IL & Greater Chicagoland. Not sure if we service your area? Give us a call.
Ductless mini-split systems offer efficient, flexible comfort—but when they stop working properly, your home can quickly become uncomfortable. At RJ's Heating, Cooling & Water Heaters, we provide expert ductless mini-split repair and maintenance services in Barrington, IL, designed to restore performance, improve efficiency, and extend the life of your system.
Whether your mini-split is making strange noises, not responding to the remote, or failing to heat or cool properly, our technicians deliver fast, accurate diagnostics and clear solutions. We service all major brands, including Daikin, Samsung, and Mitsubishi, and carry many common replacement parts on-hand for same-day repairs.
If you want to prevent breakdowns in the first place, we also offer comprehensive mini-split maintenance plans. With routine inspections and seasonal cleanings, you can avoid unexpected repairs and keep your system running at peak efficiency all year long.
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Ductless systems are reliable, but like any HVAC equipment, they can develop problems over time. Here are the most frequent issues we see in Barrington, IL and the surrounding areas:
If you notice any of these issues, call RJ's for prompt mini-split repair in Barrington, IL. We'll diagnose the problem and explain your options with no high-pressure sales or surprise fees.
Our team is trained to troubleshoot and repair single-zone and multi-zone ductless systems across a variety of applications—from residential bedrooms to sunrooms, home offices, and small commercial spaces.
We service all major mini-split brands and will always provide honest recommendations—repair if possible, replace only when necessary.
When your ductless system stops working during an extreme heatwave or mid-winter freeze, you need service fast. That's why we offer 24/7 emergency repair for mini-split systems throughout Barrington and surrounding suburbs. We'll arrive quickly, assess the issue, and get your system back online as fast as possible.
Mini-splits are low-maintenance compared to traditional HVAC systems, but they still require annual servicing to ensure efficient operation. Without maintenance, performance suffers, energy use climbs, and parts wear out faster.
At RJ's, we offer seasonal maintenance and tune-ups that protect your investment and help you avoid unexpected repair costs.
Our mini-split maintenance service is thorough, preventative, and designed to optimize performance and indoor air quality.
Regular maintenance helps your system stay efficient, reduces strain on components, and ensures quiet, reliable comfort—especially during the peak of summer and winter in Barrington, IL.
At RJ's Heating, Cooling & Water Heaters, we believe that quality HVAC services should be affordable for every homeowner and business. That's why we offer flexible financing options to help you invest in new heating, cooling, or water heating systems without financial stress.
Whether you need a new furnace, air conditioner, or water heater, our trusted financing partners make it easy to spread out payments over time. Contact us today to learn more about your financing options in Barrington, IL!
Apply NowMost mini-split systems should be professionally serviced once per year—ideally in spring or fall before the season changes. For systems used heavily year-round (heating and cooling), biannual maintenance is best. We also recommend homeowners clean the filters every 4–6 weeks, depending on usage and indoor air quality.
RJ's Comfort Club is a convenient, cost-effective way to keep your ductless system running at its best. Membership includes:
Our Comfort Club helps you avoid the unexpected and get the most value from your mini-split investment.
Our technicians are trained to maintain and repair ductless systems from:
Whether you have a newer ENERGY STAR® certified system or an older unit needing careful attention, RJ's provides accurate repair and maintenance backed by decades of experience.
Most ductless systems currently use R-410A refrigerant, which is being phased down nationwide due to environmental regulations. Future systems are shifting to refrigerants like R-32 and R-454B, which offer lower global warming potential.
If your mini-split is leaking refrigerant, we'll:
We keep your system safe, legal, and prepared for future standards.
Prevent costly breakdowns and keep your HVAC system running at peak efficiency year-round with our Comfort Club Maintenance Plan. Routine HVAC maintenance improves energy efficiency, extends system lifespan, and prevents unexpected failures. Regular maintenance saves you money on energy bills and prevents costly emergency repairs. Sign up today and enjoy worry-free heating and cooling throughout the Chicagoland area!
Join Our Comfort Club Comfort Club DetailsSeasonal HVAC tune-ups to ensure optimal performance.
Priority service—jump to the front of the line for repairs.
Exclusive discounts on repairs and system replacements.
Extended equipment lifespan through regular maintenance.
Furnace and AC inspections & tune-ups
Ductwork and air filter checks
Refrigerant level and thermostat calibration
Water heater efficiency checks
At RJ's Heating, Cooling & Water Heaters, we are:
As a family-owned HVAC company with over 20 years of experience, we proudly serve Barrington and Northwest Chicago. As an Armstrong Pro and Aprilaire Partner, we deliver trusted, high-quality comfort solutions.
We offer 24/7 emergency service for HVAC and water heaters, upfront pricing with no surprises, and highly rated craftsmanship trusted by home and businessowners throughout the region.
We proudly install and service trusted brands like Armstrong, Ducane, MagicPak, Daikin, Burnham, Weil-McLain, Aprilaire, Reme Halo, and State Water Heaters—ensuring lasting performance and comfort you can rely on.
We proudly serve Barrington, IL, and Northwest Chicago, covering areas such as:
The most common issues include:
If your system is showing any of these signs, it's best to call RJ's for professional diagnostics and repair in Barrington, IL.
Mini-splits should be serviced at least once a year to ensure efficient performance and avoid breakdowns. Systems used for both heating and cooling year-round should be serviced twice a year—once before summer and once before winter. Regular service extends the lifespan of the system and helps prevent costly repairs.
Yes—homeowners can and should clean the air filters every 4 to 6 weeks. Most filters slide out of the front panel and can be rinsed in warm water. Be sure to dry them completely before reinserting. For deep coil cleaning, drain flushing, or refrigerant checks, always hire a professional.
Indoor leaks usually mean the condensate drain is clogged or disconnected, or the system isn't level. Water backs up and drips from the air handler. It could also be caused by dirty filters or coils freezing and thawing. RJ's can flush the drain line and inspect the drain pan and pump if needed.
Possible causes include:
We'll perform a full system test to identify the issue and get your comfort restored.
Inverter-driven mini-splits modulate compressor speed to match demand, offering more precise comfort and better efficiency. However, they rely on advanced circuit boards, sensors, and pressure controls. While they're more energy-efficient, inverter systems often require specialized diagnostic tools and training, which RJ's technicians are fully equipped for.
With proper maintenance, mini-splits can last 15 to 20 years. Systems that are well maintained with regular coil cleanings, refrigerant checks, and proper airflow will outperform and outlast neglected systems.
Turn the system off and call RJ's. Ice on the indoor or outdoor unit usually points to low refrigerant, dirty coils, or airflow issues. Running a frozen system can damage the compressor, so don't delay service.
Yes. We locate and seal the leak, pressure test the system, and recharge with the correct refrigerant. Most systems still use R-410A, but if your unit is newer, it may use R-32 or R-454B. RJ's uses only EPA-compliant refrigerants and handles refrigerant recovery and disposal properly.
Not necessarily. Start by checking the batteries, ensuring the system has power, and confirming Wi-Fi is connected (for smart controls). If the remote is still unresponsive, we'll test the receiver sensor and communication board to rule out control board issues.
If your system is leaking water, short cycling, making unusual sounds, or not producing the right temperature, it's best to turn it off and call for service. Continuing to run it may cause further damage—especially to the compressor or control board.
Yes. We provide 24/7 emergency repair service throughout Barrington, IL and nearby areas. If your mini-split system fails during extreme weather, we'll respond quickly to restore your comfort.
RJ's services and maintains all major brands, including:
Whether it's a single-zone system or a multi-zone layout with multiple air handlers, we have the tools and experience to service it properly.
Not necessarily—they actually require less invasive service since there's no ductwork to clean or seal. However, because each air handler is a separate unit, multi-zone systems may take longer to inspect and clean. With regular service, they are just as durable and cost-effective as traditional systems.
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When your comfort system stops working, you need fast answers and long-term solutions. At RJ's Heating, Cooling & Water Heaters, we provide expert ductless mini-split repair and maintenance services in Barrington, IL, designed to restore performance, lower energy costs, and extend your system's life.
Whether your mini-split isn't responding, leaking water, or struggling to maintain temperature, our experienced technicians are ready to help. We service all major brands—including Daikin, Samsung, Mitsubishi, Fujitsu, and LG—and we carry the tools and parts needed to complete most repairs in a single visit. Our diagnostic process is thorough, our pricing is honest, and we prioritize safe, lasting fixes—not short-term patches.
If your ductless system is still running but not at peak performance, routine maintenance can make a huge difference. Our mini-split tune-ups include filter and coil cleaning, refrigerant checks, sensor calibration, and condensate drain flushing. These services not only restore efficiency but also protect sensitive components like inverter boards and compressors from premature failure.
For year-round peace of mind, our Comfort Club Maintenance Plan makes seasonal care easy and affordable. Members receive priority scheduling, discounted repairs, and two annual system tune-ups to keep everything running smoothly. Whether you use your ductless system to heat one room or cool your entire home, regular service ensures it's ready when you need it most.
We proudly serve Barrington, IL, and nearby areas including Hoffman Estates, Palatine, Schaumburg, Park Ridge, Oak Park, and Skokie. Homeowners throughout the Northwest Chicago suburbs trust RJ's for professional workmanship, fast response times, and service that's built to last.
Don't let a small issue turn into a major breakdown. Contact RJ's Heating, Cooling & Water Heaters today to schedule your ductless mini-split repair or maintenance in Barrington, IL. Let's get started—and keep your zoned comfort system running strong all year long.
872-274-4502 Schedule Today
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